Nexperia USA Inc. BC856BMBYL
- Part No.:
- BC856BMBYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XFDFN
- Datasheet:
-
BC856BMBYL.pdf
- Description:
- TRANS PNP 60V 0.1A DFN1006B-3
- Quantity:
- Payment:

- Shipping:

Inventory:23,320
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Product details
Overview
BC856BMBYL from Nexperia is a PNP general-purpose bipolar junction transistor in a DFN1006B-3 (SOT883B) package, rated for −60 V VCEO, −100 mA IC, with DC current gain (hFE) of 220–475 at −5 V VCE/−2 mA IC. It serves as a compact switching and amplification device in space-constrained mobile and automotive signal paths.
For engineers reviewing the BC856BMBYL datasheet, BC856BMBYL pinout, BC856BMBYL application, or BC856BMBYL equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, ultra-thin 0.37 mm package height, and binary marking code interpretation - all critical for high-density PCB layout and automotive-grade reliability validation.
Technical Context
This PNP transistor operates in linear and saturation regions with guaranteed VCE(sat) ≤ −400 mV at −100 mA IC/−5 mA IB (pulsed), and exhibits fT = 100 MHz at −5 V VCE/−10 mA IC. Its low Rth(j-a) = 500 K/W on FR4 enables stable operation up to Tj = 150 °C.
The device features AEC-Q101 qualification, −80 V VCBO, −6 V VEBO, and leakage currents limited to −15 nA ICBO (25 °C) and −5 µA ICBO (150 °C), supporting robust performance across −55 °C to +150 °C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −60 V: Maximum safe collector-emitter voltage with base open; defines breakdown margin in switching applications. |
| IC | −100 mA continuous: Absolute maximum DC collector current; sets upper limit for load-driving capability. |
| hFE | 220–475 at −5 V VCE/−2 mA IC: Confirmed DC current gain range enabling predictable base drive sizing. |
| VCE(sat) | ≤ −400 mV at −100 mA/−5 mA: Low saturation voltage ensures minimal power loss and heat generation in switch mode. |
| fT | 100 MHz: Transition frequency confirming usable bandwidth for audio-frequency amplification and fast digital switching. |
| Ptot | 250 mW at Tamb ≤ 25 °C: Total power dissipation limit on standard FR4 PCB; requires derating above 25 °C per Fig. 2. |
| Rth(j-a) | 500 K/W: Junction-to-ambient thermal resistance on single-sided FR4; determines temperature rise under load. |
Pinout & Package
DFN1006B-3 (SOT883B) is a leadless, ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.37 mm, optimized for high-density layouts and reflow soldering. Its transparent top view shows pin 1 (base) leftmost, pin 2 (emitter) center, pin 3 (collector) rightmost.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for biasing; requires current-limited drive to achieve target hFE-dependent collector current. |
| 2 | Emitter | Current source node in PNP configuration; connected to higher potential rail in common-emitter switching circuits. |
| 3 | Collector | Output current sink node; interfaces with load (e.g., LED anode, relay coil) tied between VCC and collector. |
Key Features
| Feature | Design Value |
|---|---|
| Leadless ultra-small package | DFN1006B-3 footprint saves >60% board area vs. SOT23 while maintaining comparable power handling. |
| Low profile height | 0.37 mm max package height enables use under mechanical shields and in ultra-thin portable assemblies. |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements, including temperature cycling and HTRB. |
| Binary marking code | "0101 1010" marking enables automated optical inspection and traceability without laser etching. |
| Thermal performance | 500 K/W Rth(j-a) on FR4 supports 250 mW dissipation at 25 °C ambient, with defined derating curve. |
Applications
| Automotive Door Module Switching | Smartphone LED Backlight Control |
|---|---|
|
Use Scenario: Driving window lock/unlock solenoids and mirror position actuators in door control units. IC Role / Device Role / Timing Role: PNP switch sourcing current from 12 V battery rail to inductive loads via emitter-follower configuration. Use Value: −60 V VCEO withstands load-dump transients; AEC-Q101 qualification ensures field reliability over 15-year vehicle life. |
Use Scenario: Enabling/disabling white LED strings in display backlight circuits using PWM-controlled base drive. IC Role / Device Role / Timing Role: Low-VCE(sat) PNP current switch operating in saturation during active PWM cycles. Use Value: ≤ −400 mV VCE(sat) minimizes conduction loss at 20–100 mA; 0.37 mm height accommodates tight bezel constraints. |
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Status Indication |
|
Use Scenario: Amplifying low-level analog outputs from temperature or pressure sensors before ADC sampling. IC Role / Device Role / Timing Role: Common-emitter amplifier stage with fixed bias network, leveraging hFE = 220–475 for gain stability. Use Value: 100 MHz fT supports bandwidth up to 10 kHz sensor signals; low 10 nA ICBO prevents offset drift at elevated temperatures. |
Use Scenario: Driving bi-color status LEDs (red/green) indicating USB-C port negotiation state (source/sink). IC Role / Device Role / Timing Role: Discrete PNP switch controlling LED cathodes in shared-anode configurations. Use Value: Binary-marked "0101 1010" enables automated assembly verification; −100 mA rating handles dual-LED peak current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC856BS,115 (Nexperia) | SOT323 package (2.1 × 1.25 × 0.95 mm); higher Ptot = 300 mW; same hFE range and ratings. | Larger footprint eases hand-soldering and thermal management but occupies ~4× more board area. | Select when manual rework or higher power margin is prioritized over miniaturization. |
| MMBT3906LT1G (onsemi) | SOT-23 package; VCEO = −40 V; hFE = 100–300; not AEC-Q101 qualified. | Lower voltage rating limits use in 12 V automotive systems with transients; no automotive qualification. | Acceptable for consumer-grade 5 V logic-level switching where AEC-Q101 and −60 V margin are unnecessary. |
Compared with BC856BMBYL, BC856BS offers greater thermal headroom in larger SOT323 form, while MMBT3906LT1G trades automotive compliance and voltage margin for broader distributor availability in legacy SOT-23 designs.
Availability
BC856BMBYL is available at Aetrix Electronics and suitable for automotive door modules, smartphone LED drivers, industrial sensor interfaces, and USB-C status indication requiring stable component supply across extended temperature ranges and high-volume production.
Supply support for BC856BMBYL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a leading semiconductor manufacturer specializing in high-performance, reliable discrete and logic devices, with global R&D and manufacturing infrastructure focused on automotive, industrial, and mobile markets.
BC856BMBYL belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered for miniaturized, thermally efficient switching and amplification in harsh-environment electronics.
FAQ
What is the marking code format for BC856BMBYL?
The BC856BMBYL uses an 8-bit binary marking code "0101 1010" printed on the top surface of the DFN1006B-3 package. Pin 1 (base) is identified by the reading direction arrow adjacent to the marking, with bits read left-to-right in standard orientation. This code enables automated optical recognition during SMT placement and post-assembly traceability.
Is BC856BMBYL suitable for automotive applications?
Yes - BC856BMBYL is fully qualified to AEC-Q101 standards for discrete semiconductors, including stress tests for temperature cycling, high-temperature reverse bias, and humidity testing. Its −55 °C to +150 °C operating range, −60 V VCEO, and validated reliability data support deployment in body control modules, lighting systems, and infotainment peripherals.
How does thermal derating work for BC856BMBYL on FR4 PCB?
BC856BMBYL's Ptot is 250 mW at Tamb ≤ 25 °C on standard FR4 with single-sided copper. Above 25 °C, power must be linearly derated at 3.33 mW/°C (per Fig. 2), reaching zero dissipation at 100 °C ambient. This reflects its Rth(j-a) = 500 K/W and ensures junction temperature stays below 150 °C under defined mounting conditions.
What is the difference between BC856BMBYL and BC856BMB?
BC856BMBYL is the tape-and-reel packaged version of BC856BMB, optimized for automated SMT assembly. Both share identical electrical specifications, package dimensions (DFN1006B-3), marking code ("0101 1010"), and AEC-Q101 qualification. The "YL" suffix denotes the specific reel packaging configuration per Nexperia's ordering nomenclature, not a functional variant.
BC856BMBYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 200mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 220 @ 2mA, 5V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006B-3
BC856BMBYL FAQ
1.How can I place an order for BC856BMBYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BC856BMBYL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BC856BMBYL reliable?
The price and inventory of BC856BMBYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC856BMBYL is usually 5 days.
3.What payment methods are accepted for BC856BMBYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC856BMBYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC856BMBYL?
BC856BMBYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC856BMBYL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BC856BMBYL?
For technical support, including BC856BMBYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC856BMBYL requirements.
6.How does Aetrix verify that BC856BMBYL is sourced from the original manufacturer or authorized distributors?
All BC856BMBYL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BC856BMBYL meets industry standards.
7.What is the process for return or replacement of BC856BMBYL?
All BC856BMBYL units undergo pre-shipment inspection (PSI). If there is an issue with BC856BMBYL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BC856BMBYL part is unused and in its original packaging.
Return procedure for BC856BMBYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC856BMBYL Tags

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