Introducing Hirose’s BK11 Series—an ultra-compact FPC-to-board connector engineered for power and performance in portable electronics. With a 0.35mm pitch, 0.6mm stacking height, and slim 1.9mm width, the BK11 delivers up to 8A total current through a multi-power hybrid layout featuring 2 main power contacts (4A) and 4 sub power contacts (2.5A). This structure supports power delivery to multiple modules through a single connector—reducing component count and saving mounting space. Armored metal guides, reinforced solder points, and a tactile click design ensure secure, reliable mating even in compact or vibration-prone devices. Ideal for smartphones, wearables, wireless audio, and other battery-powered products, the BK11 Series offers a robust and space-saving connectivity solution.

1. Hybrid Type with Multi-Power Contacts

2. Robust Design

3. Enhanced PCB Peeling Strength

4. Superior Mating Operability

5. Halogen-Free

Introducing Hirose’s BK11 Series—a compact, hybrid, multi-power FPC-to-board connector designed to deliver power and performance in portable electronics. With a 0.35mm pitch, 0.6mm stacking height, and slim 1.9mm width, the BK11 Series supports efficient power distribution and secure mating in ultra-slim devices. 

KEY FEATURES: Key features of the BK11 Series include:

• A hybrid design with multi-power and signal contacts—including 2 main power pins (4A) and 4 sub power pins (2.5A)—supporting up to 8A total in one compact connector.

• Optimized to support multiple modules through one connector—reducing signal lines and saving mounting space on the board.

• A robust structure with fully armored metal guides to prevent housing damage during misalignment.

• Reinforced solder points at each power contact to increase PCB peeling strength and ensure long-term retention.

• Smooth and reliable mating with a wide self-alignment range and a clear tactile click.

• A halogen-free construction that meets IEC 61249-2-21 environmental standards.

APPLICATIONS: The BK11 Series is ideal for smartphones, wearables, wireless earphones, and other compact, battery-powered devices requiring high-current FPC-to-board connectivity 

Stay ahead of the curve with the BK11 Series Connector. For deeper insights, visit and subscribe to our YouTube channel. Hirose Electric – Connecting the Future.