Hirose Electric BF4 Series

BF4M Series Active Optical Connector Apr. 2021 ⑤ Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Overview Hirose developed the micro "BF4MC connector" that enables optical transmission of data between boards that are incorporated in devices. It converts an electrical signal that is received from a board by using the semiconductor component built in the connector and then transfers the data via optical fiber. The BF4MC connector has a revolutionary design that enables easy use of the benefits of optical transmission, including electromagnetic noise- free, insulated, long-distance, high speed transmission. Mounting inside devices achieves dramatic space saving and lower power consumption when compared to existing optical products. It can be used in a wide range of applications, including medical appliances, measurement equipment, FA systems, etc. Please consult with a Hirose representative when considering for applications that require high reliability such as automotive. Features 1. Optical transmissions achieved by simplified electrical connections An easy transmission is accomplished with electronic connectors and eliminates the need for cleaning the mating faces of traditional fiber optic connectors. 2. High speed signal transmissions with no EMI noise. Optical signal transmissions rated up to 6.25 Gbps are possible. Since there is no EMI noise on the signal lines, system design time will be saved. Eye Diagram (Typical) : Transmission Speed 6.25 Gbps, Length 5 meters 3. Highly flexible optical fiber A highly flexible optical fiber is useful for narrow space wiring within devices. 2 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector 4. Long distance, high speed and high quality signal Electrical Input Optical Data Transmission Electrical Output transmissions VCSEL TIA +VCSEL PD Driver LA The BM4M design is capable of high speed and BF4 Transmitter Optical Fiber BF4 Receiver high quality signal transmissions even over long VCSEL : Vertical Cavity Surface Emitting Laser PD : Photo DiodeTIA : Trans Impedance Amplifier transmission distances. LA : Limiting Amplifier Block Diagram 5. Low power consumption Power consumption is significantly reduced compared to a conventional optical transceiver. 6. Space-saving and low profile design with 1.5mm height Using the BF4M enables optical transmission with the same small form factor as electronic connectors. Full Scale 5cm 7. Hirose offers a wide array of optical in- line and device to device connection types 3 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Electrical Characteristics ● Electrical Characteristics of BF4MC-TX (Transmitter Side) Min. Nominal Max. Unit Transmission Speed (8B/10B) 0.05 - 6.25 Gbps VDD Voltage 2.25 2.5/3.3 3.6 V ACTIVATE = H Voltage 1.0 - VDD Voltage V DIN Common Voltage 150 - 340 mVp DIN Differential Voltage 200 - 1400 mVp ● Electrical Characteristics of BF4MC-RX (Receiver Side) Min. Nominal Max. Unit Remarks Transmission Speed (8B/10B) 0.05 - 6.25 Gbps - VDD Voltage 2.25 2.5/3.3 3.6 V - VDD 15 Voltage 1.45 1.5 1.55 V When driving with dual power sources DOUT Common Voltage 160 - 330 mVp - DOUT Differential Voltage 160 - 330 mVp - SD = H Voltage 1.0 1.5 1.6 V - Imon 20.0 - - uA For internal inspection 4 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector ＜Pin Assignment＞ BF4MC-TX Plug BF4MC-RX Plug Fiber Fiber GND 1 20 GND GND 1 20 GND GND 2 19 GND GND 2 19 GND GND 3 18 GND GND 3 18 GND VDD 4 17 ACTIVE Imon 4 17 EN GND 5 16 NC SD 5 16 NC FILT 6 15 NC VDD 6 15 VDD15 GND 7 14 GND GND 7 14 GND DIN+ 8 13 DIN- DOUT- 8 13 DOUT+ GND 9 12 GND GND 9 12 GND GND 10 11 GND GND 10 11 GND Top View ＜Pin Functions＞ 　 Descriptions of BF4MC-TX Pins Symbol Name Type Details VDD Vsupply Power Power Supply DC+2.5 or +3.3V GND Ground Ground - H Voltage : Active Mode ACTIVE Activate Input L Voltage : Sleep Mode Decouping Capacitor Connection FILT Filter - Contact DIN+ Data input + Input Differential Data Input DIN- Data input - Input Differential Data Input Not Connected in Normal NC Not Connect - Operation Descriptions of BF4MC-RX Pins Symbol Name Type Details VDD Vsupply Power Power for PD(*) VDD15 Vdd1.5V Power Power for Core(*) GND Ground Ground - H Voltage : Detected SD Signal Detect Output L Voltage : Undetected DOUT+ Data Output + Output Differential Data Output DOUT- Data Output - Output Differential Data Output [Dual Supply Mode] Not Connected EN Regulator Enable Input [Single Supply Mode] EN Pin Must be Connect to VDD Mirrored Photodiode Imon Output Not Connected (Inspection Pin) Current Monitor Not Connected in Normal NC Not Connect - Operation Note : For details, see the BF4MC Design Note ETAD-K0671. 5 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Product Materials ● Plug Harnesses Component Details Housing LCP (BF4MC : White) Contact Phosphor Bronze (Gold Plating) Plate Phosphor Bronze (Nickel Plating) VCSEL GaAs Transmitter Plug (TX) VCSEL Driver Si (CMOS) Bonding Wire Gold Sealing Resin Epoxy Resin Heat Shrink Tubing Polyolefin (Black) ESD Cap Elastomer (Black) Housing LCP (BF4MC : White) Contact Phosphor Bronze (Gold Plating) Plate Phosphor Bronze (Nickel Plating) PD GaAs Receiver Plug (RX) TIA/LA Si (CMOS) Bonding Wire Gold Sealing Resin Epoxy Resin Heat Shrink Tubing Polyolefin (Black) ESD Cap Elastomer (Black) Fiber Silica Glass (GI50/80) Optical Fiber Coating UV curable resin/Thermo plastic resin(φ0.5) Housing PBT (Blue) Boot Elastomer (Blue) Spring Stainless Steel SC Connector Ferrule ZrO2 Ferrule Flange Stainless Steel Cap Elastomer (Black) Housing PEI (Beige) Boot Elastomer (White) Spring Stainless Steel LC Connector Ferrule ZrO2 Ferrule Flange Brass Cap PP (Black) ● Receptacles Component Materials Housing LCP (Black) Transmitter Receptacle (TX) and Contact Phosphor Bronze (Gold Plating) Receiver Receptacle (RX) Shell Phosphor Bronze (Gold Plating) 6 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Product Number Structure Refer to the chart below when determining the product specifications from the product number. Please select from the product numbers listed in this catalog when placing orders. ■ Plug Harness BF4M C-6G TX RX - B1 - 75MM ❶ ❷ ❸ ❹ ❺ ❻ ❶ Series BF4M ❺ Type of Fiber B1 : Diameter φ0.5, Red Cable B2 : Diameter φ0.5, Blue ❷ Bit Rate C-6G : 0.05 to 6.25 Gbps ❸ ❹ Type of plug TX : BF4 Transmitter Plug ❻ Fiber Cable *Cable length less than 1m ⇒ The end of the that attaches to SC : SC Connector Length product name･##MM（Millimeter） both ends of the RX : BF4 Receiver Plug *Cable length 1m or more ⇒ The end of the harness LC : LC Connector product name･##M（Meter） ■ Receptacle BF4 - TX - 14 DS - 0.5 V (##) ❶ ❷ ❸ ❹ ❺ ❻ ❼ ❶ Series BF4 ❻ Mating Method V : Vertical Mated to the Mounting Surface ❷ Transmitter/ TX : Transmitter ❼ Packing None : 500pcs per reel Receiver RX : Receiver Specifications (01) : 1000pcs per reel ❸ Number of 14 pins (02) : 2000pcs per reel Contacts (10) : 10pcs per bag ❹ Socket Shape Socket (S) of Double line assignment pins (D) (11) : 100pcs per reel ❺ Pitch 0.5mm BF4 Variations Type Usage Image Product Image BF4M-RX Both Ends BF4M (Connection for board-to-board) BF4M-TX BF4M One End BF4M, the Other Conventional Optical Connector (SC,LC) Outside the Device In-line Optical Connector (In-line Connection Between Inside and Outside the Device) Inside the Device 7 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Connection Example of +3.3V (Single Power Supply Mode) 8 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Plug Harness ● BF4MC Harness L 9.82 （6） （6） 9.82 Identification Mark Identification Mark for TX Side for RX Side ● BF4MC Harness (Representative Product) Part No. HRS No. Fiber Cable length L Purchase Unit BF4MC-6GTXRX-B1-45MM CL0831-1102-0-04 45mm BF4MC-6GTXRX-B1-50MM CL0831-1102-0-05 50mm BF4MC-6GTXRX-B1-55MM CL0831-1102-0-06 55mm BF4MC-6GTXRX-B1-60MM CL0831-1102-0-07 60mm BF4MC-6GTXRX-B1-65MM CL0831-1102-0-08 65mm BF4MC-6GTXRX-B1-70MM CL0831-1102-0-09 70mm 15pcs per tray BF4MC-6GTXRX-B1-75MM CL0831-1102-0-00 75mm BF4MC-6GTXRX-B1-80MM CL0831-1102-0-11 80mm BF4MC-6GTXRX-B1-85MM CL0831-1102-0-12 φ0.5 Red 85mm BF4MC-6GTXRX-B1-90MM CL0831-1102-0-13 90mm BF4MC-6GTXRX-B1-95MM CL0831-1102-0-14 95mm BF4MC-6GTXRX-B1-100MM CL0831-1102-0-15 100mm BF4MC-6GTXRX-B1-1M CL0831-1109-9-00 1m BF4MC-6GTXRX-B1-2M CL0831-1109-9-01 2m BF4MC-6GTXRX-B1-3M CL0831-1109-9-02 3m 1pcs per bag BF4MC-6GTXRX-B1-4M CL0831-1109-9-03 4m BF4MC-6GTXRX-B1-5M CL0831-1109-9-04 5m Note 1 : The shortest harness length is 45mm, and harnesses up to 100mm in length are available in 5mm increments. (45mm, 50mm, 55mm...100mm) Note 2 : Harness lengths other than those listed above are also available upon request. Please inform a Hirose representative of your desired harness length. Note 3 : Blue fiber color is also available. Contact a Hirose sales representative for details. 9 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 1.3 3.1 1.45 （φ0.5） 1.45 1.3 3.1

BF4M Series/Active Optical Connector ● BF4MC - SC Connector Harness Ｌ 9.82 （6） 25 （33） BF4MC Plug SC Connector ● BF4MC - SC Connector Harness (Representative Product) Part No. HRS No. Fiber Length TX or RX BF4MC-6GTXSC-B1-100MM CL0831-1111-0-00 100mm TX φ0.5 Red BF4MC-6GRXSC-B1-100MM CL0831-1112-0-00 100mm RX Note 1 : The shortest harness length is 100mm. Note 2 : Please use the BF4MC transmitter and receiver connectors together. Note 3 : Harness lengths other than those listed above are also available upon request. Please inform a Hirose representative of your desired harness length. Note 4 : Blue fiber color is also available. ● BF4MC - LC Connector Harness Ｌ 9.82 （6） （17）（13.2） BF4MC Plug LC Connector ● BF4MC - LC Connector Harness (Representative Product) Part No. HRS No. Fiber Length TX or RX BF4MC-6GTXLC-B1-100MM CL0831-1114-0-00 100mm TX φ0.5 Red BF4MC-6GRXLC-B1-100MM CL0831-1135-0-00 100mm RX Note 1 : The shortest harness length is 100mm. Note 2 : Please use the BF4MC transmitter and receiver connectors together. Note 3 : Harness lengths other than those listed above are also available upon request. Please inform a Hirose representative of your desired harness length. Note 4 : Blue fiber color is also available. 10 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 1.3 3.1 3.1 1.3 1.45 1.45 （φ0.5） （φ0.5） （7.4） （9） （4.5） （4.5）

BF4M Series/Active Optical Connector Receptacle ● Receptacle : Transmitter (TX) 10.25 9.5 3 P=0.5±0.05 (2.05) Vacuum 3mm Pick Up Area 2.1mm VacuumPick Up Area (0.25) (1.75) Note : Designed so that the receiver (RX) plug does not mate. Part No. HRS No. Purchase Unit BF4-TX-14DS-0.5V CL0831-0008-6-00 500pcs per reel BF4-TX-14DS-0.5V(01) CL0831-0008-6-01 1000pcs per reel BF4-TX-14DS-0.5V(02) CL0831-0008-6-02 2000pcs per reel BF4-TX-14DS-0.5V(10) CL0831-0008-6-10 10pcs per bag BF4-TX-14DS-0.5V(11) CL0831-0008-6-11 100pcs per reel 11 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 5.43 4.95 1.48±0.1

BF4M Series/Active Optical Connector ● Receptacle : Receiver (RX) 10.25 9.5 3 P=0.5±0.05 (1.75) Vacuum 3mm Pick Up Area RX 2.1mm VacuumPick Up Area (0.25) (2.05) Note : Designed so that the transmitter (TX) plug does not mate. Part No. HRS No. Purchase Unit BF4-RX-14DS-0.5V CL0831-0009-9-00 500pcs per reel BF4-RX-14DS-0.5V(01) CL0831-0009-9-01 1000pcs per reel BF4-RX-14DS-0.5V(02) CL0831-0009-9-02 2000pcs per reel BF4-RX-14DS-0.5V(10) CL0831-0009-9-10 10pcs per bag BF4-RX-14DS-0.5V(11) CL0831-0009-9-11 100pcs per reel ● Pattern Layout Recommended PCB Land Pattern Dimensions Recommended Stencil Dimensions 5.6 5.7 (Stencil Thickness 120μm) 4.5 3.8 0.3 1.4 The hatched areas are close to the metal shell, 0.26 1.4 1 P=0.5 0.9 and there is a possibility of a short circuit. 1 P=0.5 0（.9 Apeture Ratio3 1.2 Make sure not to place a via hole without a Pads for Contacts : 70%4.9 3.65 solder resist. 3 1.24.9 3.65 P a ds fo r S h el l : 10 0 % ） ● Packaging Specifications Reel Dimensions Emboss Carrier Tape Dimensions 29.5±1 A t=0.3±0.052±0.5 25.5±0.5 φ1.5 Sprocket Hole Near Side ＋0. 1 0 2±0.1 P=4±0.1 1.6±0.11.5 φ P=12±0.1 A-A A 12 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 6.4 5.4 4 1.9 120° φ13±0.2 φ330±2 φ80±1 1.9 4.4 5.4 5.43 4.95 1.48±0.1 (6) (11) (5.25) 6.4 5.4 4.4 TX 4.46 TX 1.75±0.1 5.5±0.1 4.45.4 11.5±0.1 24±0.3 120° .8 φ21 ±0

BF4M Series/Active Optical Connector Extraction Tool （6） （4.4） φ2 φ2 （2.6） Part No. HRS No. Purchase Unit BF4-T2 CL0831-0006-0-00 1pcs per bag Recommended Reflow Temperature Profile (Lead-Free Solder) Reflow Cycle : 2 Cycles Max. 250℃ Max. 250 220 220℃ 180 180℃ 150 150℃ 100 25 Time (sec) 0 (60 sec) Preheat Time Soldering Time 90 to120 sec 60 sec Max. Test Board PCBs for testing and evaluation are available. Please contact us for more information. BF4M High Speed BF4M High Speed Transmission Board : TX2 Transmission Board : RX2 13 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved. Temperature (℃) BF4-T2 （40）

BF4M Series/Active Optical Connector Connector Mating Method Do not mate the connector while power is being supplied. Make sure to insert or remove the plug after the power supply is turned off. Hot plugging/unplugging may cause damage. Metal plate (silver) shall be on bottom surface during mating process. Metal exposed area (gold, triangle mark) shall be on top surface during mating process. Cautions for Connector Unmating Do not pull the fiber when removing the connector. When removing the connector, make sure to hook the plug with an extraction tool so that the stress is not applied to the cable. Pulling the cable to remove it may cause a breakage in the cable. Please unmate by hooking onto the plug that protudes slightly from the optical fiber for easy unmating. Unmating Tool Do not remove the plug while power is being supplied. Make sure to remove the plug after the power supply is stopped. Hot plugging / unplugging may cause damage. Precautions for Optical Connectors Refer to the optical fiber catalog for cautions on handling cables with optical connectors. 14 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Notes on Handling of the Product (Notes on change of information) • The content of this document including the information regarding the connector (hereafter, the Product) is subject to change without prior notice. (Prohibition of reproduction) • No part of this document may be copied or reproduced without prior written consent of Hirose Electric Co. , Ltd. ( hereafter, Hirose) . Even if written consent of Hirose is obtained, it is prohibited to amend any part of this document and copy or reproduce it. Hirose shall assume no obligation or liability in connection with such amended information or reproduction. (Responsibilities for design safety) • Hirose shall assume no responsibilities for the support for the application of the Product or the product design of the customer. The customer shall be responsible for the product and application of the customer in which the Product is used. The customer shall take appropriate design and operational safety measures in order to minimize the potential risks predicted for the product and application of the customer in which the Product is used. (Responsibilities for determination of the suitability) • When using the Product, the customer shall ensure safe design at his/her own responsibility so that malfunction or failure of the Product would never cause an infringement on life, body or property. For design or use of the Product, make sure to refer to the materials ( including the catalog, specifications, and design note) and follow the same. When using information including the product data provided in the document, technical data or circuit examples shown in the figures and tables, the customer shall evaluate the information on the customer’s product and determine the suitability at the customer’s own responsibility. (Responsibilities for specific applications) • Make sure to consult with our sales representative in advance when considering of use for specific applications that require extremely high quality and reliability (e.g. nuclear equipment, aerospace systems, transportation equipment and various safety related equipment) . (Prohibition of replication) • Do not diassemble, reverse-engineer, modify, analyze or replicate the Product. (Prohibition of application to prohibited products) • The Product must not be used for any product in which the manufacturing, use or sale of which is prohibited by domestic or international laws, regulations and ordinances. (Notes on the guarantee and license) • The technical data provided in the materials of the Product is intended to describe the representative behaviors and application of the Product. It is not to guarantee the intellectual property rights or any other rights of Hirose nor a third party and not to grant the license. (Notes on the warranties for the contract) • Unless otherwise provided in a written contract or other documents ( specifications) agreed between the customer and Hirose, Hirose makes no warranties of any kind ( including, but not limited to, warranties of the function and operation, warranties of merchantability, warranties of suitability for a specific application or purpose and warranties of correctness of the information) . (Notes on export) • To export the Product to other countries, the exporter shall conduct the applicability determination based on Foreign Exchange and Foreign Trade Act of Japan. If you wish to have the applicability determination sheet issued by Hirose, contact our sales representative. Note that in the export arrangement, the customer shall be an exporter and responsible for compliance with all the applicable laws and regulations and terms and conditions of the agreement with Hirose. 15 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

BF4M Series/Active Optical Connector Notes on Use of the Product (Notes on the specification range) • Using the Product under conditions beyond the specification range ( for voltage, current and temperature) provided in this document may result in an accident ( including ignition, heat generation, and smoking) . Confirm the document thoroughly and make sure to use the Product within the specification range. (Notes on the laser) • The laser beam is emitted from the end- face of the optical fiber in operation. It may cause eye injury or loss of sight if it enters the eyes. Do not stare directly into the end- face of the optical fiber.The laser beam is emitted from the VCSEL in operation. It may not be visible depending on its wavelength, but nonetheless it may cause eye injury or loss of sight if the laser beam or its reflected beam enters the eyes. Do not stare ( look into) the laser beam directly. (Notes on fracture of the optical fiber) • In case of fracture of the optical fiber used in the Product, turn off the power immediately. In addition, use care when handling it to avoid injury from fractured parts or fragments. (Notes on use of GaAs) • The Product is equipped with a semiconductor within the connector and contains gallium arsenide (GaAs) . (Notes on the environment including gases) • Avoid the use of the Product in gas environments with chlorides or sulfides. The Product may deteriorate and features may be affected. (Notes on storage) • Store the Product out of corrosive substances, corrosive gases, high temperature and humidity or direct sunlight. Do not apply excessive pressure or vibration to the Product. It may cause deterioration, deformation, damage or failure of the Product. (Notes on resin molded part) • The resin molded part of the Product may contain black spots or its color may be slightly different, but that has no effect on the product performance. While taking in consideration Specifications mentioned in this catalogue are reference values. While considering to order or to use this product, please confirm the "Drawing" and "Product Specifications" sheets. While using connector with cable combination, please use appropriate cable. If considering usage of inappropriate cable, please contact our sales representative. If assembly process is done using jigs & tools which are not identified by our company, in such cases assurance will not be given. If considering usage for below mentioned applications, please contact our sales representative. As per condition, it needs to be considered whether assurance can be given or not. In cases where the application will demand a high level of reliability, such as automotive, Medical instruments, Public infrastructure, aerospace/ defense etc. 　　　　　　2-6-3,Nakagawa Chuoh,Tsuzuki-Ku,Yokohama-Shi 224-8540,JAPANhttps://www.hirose.com ※The contents of this catalog are current as of date of 4/2021. Contents are subject to change without notice for the purpose of improvements. 16 Jun.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.