BC 856S Infineon Transistor (SOT23 (6-Pin)) In Stock
Infineon BC 856S integrates two matched PNP bipolar junction transistors in a compact 6-pin SOT-363 surface mount package, rated for 100 mA collector current and 65 V collector-emitter voltage. The dual configuration enables differential amplifier, current mirror, and switching designs without consuming two separate transistor footprints. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Infineon
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- BC 856S Datasheet PDF
- Category
- Transistor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of BC 856S?
- Dual matched PNP transistors in a single 6-pin SOT-363 package saves PCB area versus two individual SOT-23 devices
- 100 mA maximum collector current and 65 V VCEO rating supports small-signal switching and amplification across wide supply rail ranges
- Matched dual construction reduces offset errors in differential amplifier and current mirror circuits where transistor hFE matching is critical
What is BC 856S used for?
The BC 856S dual PNP transistor is suited for small-signal amplification, differential pair circuits, and current mirror configurations in portable consumer electronics, audio equipment, and power management designs. Its 100 mA collector current and 65 V breakdown voltage enable use as a switch or amplifier across supply rails from 3.3 V to 65 V. The compact 6-pin SOT-363 package supports high-density PCB layouts in wearables, mobile devices, and industrial control boards where board space is at a premium.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for BC 856S?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the maximum collector current and voltage ratings of the BC 856S dual PNP transistor?
The BC 856S is rated for a maximum collector current of 100 mA and a collector-emitter voltage of 65 V, suitable for small-signal switching and amplification on supply rails from 3.3 V up to 65 V. Both PNP transistors in the 6-pin SOT-363 package share these ratings, enabling matched dual-transistor topologies such as differential pairs and current mirrors in a single compact SMT footprint.
What design advantages does the dual PNP configuration of BC 856S offer over two individual transistors?
The BC 856S integrates two matched PNP transistors in one 6-pin SOT-363 package, occupying less board area than two separate SOT-23 devices while providing closely matched hFE values at 2 mA operating current. This matching reduces offset voltage and current mirror errors in differential amplifier stages where mismatched transistors would otherwise require trimming, saving both calibration time and additional trim component costs.
In which high-density PCB applications is the 6-pin SOT-363 BC 856S preferred over larger packages?
The BC 856S in 6-pin SOT-363 is preferred in wearables, portable audio devices, and mobile power management circuits where a dual 100 mA PNP transistor pair must fit into areas too small for two individual SOT-23 packages. Its 65 V rating also makes it suitable for LED driver bias networks and analog switch circuits operating from 12 V to 48 V industrial supply rails in compact form factors.
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