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BK10 Series

Product catalog summary

Overview: The BK10 Series is a 0.3mm pitch, 0.5mm stacking height, fully armored hybrid FPC-to-board connector designed for compact and robust applications, particularly in mobile devices.

Key Features:

Ultra Low-profile and Space-saving Design: Compact dimensions with a stacking height of 0.5mm and depth of 1.7mm.
Robust Design: Fully armored guides prevent housing damage during misalignment.
High Extraction Force: Dimpled contact lock design enhances extraction force.
Enhanced PCB Peeling Strength: Three solder areas per power contact improve strength.
High Contact Reliability: Two-point contact design ensures reliability.
Superior Mating Operability: Wide self-alignment range and tactile click for complete mating.
Halogen-Free: Complies with IEC 61249-2-21 standards.

Specifications:

Rated Current: Signal contact 0.3A, Power contact 5A.
Operating Temperature: -55 to +85℃.
Storage Temperature: -10 to +60℃.
Rated Voltage: 30V AC/DC.

Performance:

Contact Resistance: Signal contact 50mΩ max, Power contact 30mΩ max.
Insulation Resistance: 50MΩ min.
Withstanding Voltage: 100V AC for 1 min.
Mating Durability: 10 mating cycles without damage.
Vibration and Shock Resistance: No electrical discontinuity or damage under specified conditions.

Materials: Insulator made of LCP, signal and power contacts are copper alloy with gold plating over nickel underplating.

Usage Precautions:

Recommended solder temperature profile includes a peak temperature of 250℃.
Manual soldering should be done at 340±10℃ within 3 seconds.
PCB warpage should not exceed 0.02mm.
Cleaning is not recommended as it may affect performance.
Ensure proper support for the PCB to avoid damage.

Handling Precautions:

Align connectors properly using guide ribs for mating.
Un-mating should be done perpendicular to the mounted surface to avoid stress on contacts.

Additional Notes: Specifications are subject to change for improvements. For high-reliability applications, such as automotive or medical, contact Hirose for assurance.

Catalog excerpts

Open the catalog to page 1

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector Features Conventional Product Compact design ideal for mobile devices. ・ Stacking height : 0.5mm, Pitch : 0.3mm, Depth : 1.7mm Stacking Height : 0.5mm PCB Mounting Space : 14.25mm2 Conventional Product 0.35mm Pitch Signal 30Pos. +Power 2Pos. Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 16% Reduced PCB Mounting Space : 12.04mm2 0.3mm Pitch Signal 30Pos. +Power 2Pos. 1. Ultra Low-profile and Space-saving Design Ultra Low-profile and Space-saving Design Fully armored guides prevent...

Open the catalog to page 2

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector 4. Enhanced PCB Peeling Strength Back Side of the Receptacle Both the plug and receptacle have 3 solder areas at each power contact for greater PCB peeling strength. Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 3 Solder Areas on Each Power Contact Back Side of the Plug 3 Solder Areas Enhance PCB Peeling Strength 5. High Contact Reliability Both the power and signal contacts have a two-point contact design, ensuring high contact reliability. 6. Superior Mating Operability Wide...

Open the catalog to page 3

ms BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. Note 1 : The total current capacity is 12A Max. for signal contacts. Note 2 : Includes temperature rise due to current flow. Note 3 : The term “storage” refers to long-term-storage of unused items before they are mounted on the PCB. Operating temperature range applies to the product in a temporary storage state such as non-powered after mounting on the PCB during transportation, etc. Materials / Finish Part Rated Current Refer...

Open the catalog to page 4

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector H15 Plug Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. A ± 0.3 Note : This connector has no polarity.

Open the catalog to page 5

ms BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector Recommended Metal Mask Dimensions (Mask Thickness : 0.08mm) Note : This connector has no polarity.

Open the catalog to page 6

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector H15 Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. Packaging Specifications Diagram Embossed Tape Dimensions Reel Dimensions Receptacle Embossed Tape Dimensions Reel Dimensions UNREELING DIRECTION

Open the catalog to page 7

ms BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector Recommended Solder Temperature Profile 1. Peak Temperature : Maximum of 250°C 2. Heated Section : 220C Min., within 60 seconds 3. Preheated Section : 150 to 180C, 90 to 120 seconds 4. Number of Reflow Cycles : Maximum of 2 cycles Note 1 : The temperature is the surface temperature of the PCB in the vicinity of the connector lead part. Note 2 : When using nitrogen reflow process, please mount the product with an oxygen concentration of 1000ppm or more. Please contact a Hirose representative if the concentration...

Open the catalog to page 8

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector Connector Handling Precautions 【Connector Mating Method】 Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 1. Locate the guides and align the connectors to the appropriate mating position. The connector has guide ribs on the receptacle for proper mating alignment. Align the connectors with the guide ribs. Metal Cover Guide (Outside) Metal Cover Guide (Inside) 2. When the connector comes to the appropriate position, the connector will lower into place as indicated by the change in...

Open the catalog to page 9

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector 【Connector Un- Mating Precautions】 Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. 1. It is recommended to remove the connector by pulling perpendicular to the connector mounted surface. However, unmating FPC-to-board connectors can become more difficult with higher pin count connectors and thinner FPCs. 2. If is difficult to remove the connector parallel to the mounting surface, remove it diagonally towards the pitch direction. Do not remove the connector towards the width direction...

Open the catalog to page 10

BK10 Series/0.3mm Pitch, 0.5mm Stacking Height, Fully Armored, Hybrid FPC-to-Board Connector While Taking into Consideration Oct.1.2026 Copyright 2026 HIROSE ELECTRIC CO., LTD. All Rights Reserved. Specifications mentioned in this catalog are reference values. When considering to order or use this product, please confirm the Drawing and Product Specifications sheets. Use an appropriate cable when using the connector in combination with cables. If considering usage of a non- specified cable, please contact your sales representative. If assembly process is done by jigs & tools which are not identified...

Open the catalog to page 11

BK10 Series

BK10 Series

Catalog excerpts

All Hirose Electric Europe B.V. catalogs and technical brochures