Nexperia USA Inc. BC856BS/DG/B2,115
- Part No.:
- BC856BS/DG/B2,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BC856BS/DG/B2,115.pdf
- Description:
- TRANS 2PNP 65V 100MA 6-TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BC856BS/DG/B2,115 from Nexperia is a dual PNP general-purpose transistor pair in SOT363-3 (TSSOP6) package, rated for −65 V VCEO, −100 mA IC, and featuring hFE = 200–450 at −2 mA/−5 V. It delivers matched current gain, low VCE(sat) (−200 mV typ. @ −100 mA/−5 mA), and <2.3 pF collector capacitance - used in compact dual-switching circuits such as LED driver bias networks and complementary logic level shifters.
For engineers reviewing the BC856BS/DG/B2,115 datasheet, BC856BS/DG/B2,115 pinout, BC856BS/DG/B2,115 application, or BC856BS/DG/B2,115 equivalent, this page provides verified pin mapping, thermal derating curves, saturation voltage behavior across temperature, and validated alternatives for dual-transistor discrete replacement in space-constrained analog control stages.
Technical Context
This dual PNP transistor integrates two electrically isolated, closely matched transistors in a single TSSOP6 footprint. Each device supports independent biasing with no mutual interference, enabling precise current mirroring or differential switching without cross-coupling.
It operates within −55 °C to +150 °C ambient range, with Rth(j-a) = 416 K/W per device on FR4 PCB and Ptot = 300 mW max at Tamb ≤ 25 °C. Its fT ≥ 100 MHz at −10 mA/−5 V enables stable operation up to audio-frequency amplification and fast digital switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −65 V - Supports rail-to-rail switching in −48 V telecom bias rails and industrial −24 V control systems. |
| IC | −100 mA - Sufficient drive capability for small-signal relays, optocoupler LEDs, and low-power MOSFET gate pre-drivers. |
| hFE | 200–450 @ −2 mA/−5 V - Enables high-current gain stability across production lots for consistent base drive sizing. |
| VCE(sat) | −200 mV typ. @ −100 mA/−5 mA - Minimizes conduction loss in saturated-switch applications like load switching and current limiting. |
| Cc | 2.3 pF - Reduces Miller effect and improves high-frequency response in amplifier and oscillator bias networks. |
| Ptot (per device) | 300 mW - Allows dual-transistor operation at full rating on standard FR4 PCB without forced cooling. |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package: 1.35 mm × 2.2 mm footprint, 0.65 mm pitch, 0.95 mm max height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of TR1 | Primary current sink node for first transistor; connects to local ground reference in common-emitter configurations. |
| 2 | Base of TR1 | Control input for TR1; requires current-limited drive due to VBE(sat) ≈ −0.75 V typical. |
| 3 | Collector of TR2 | Output node for second transistor; routed to load or next-stage input in cascode or push-pull arrangements. |
| 4 | Emitter of TR2 | Independent emitter return path for TR2; enables separate biasing from TR1 for differential operation. |
| 5 | Base of TR2 | Second independent control input; allows asynchronous or complementary switching relative to TR1. |
| 6 | Collector of TR1 | Main output of TR1; shares same functional role as Pin 3 but for first transistor - critical for dual-output logic gates. |
Key Features
| Feature | Design Value |
|---|---|
| Low collector-emitter saturation voltage | VCE(sat) ≤ −200 mV @ −100 mA ensures <20 mW conduction loss per transistor in switching mode. |
| Closely matched hFE | Typical gain spread <±5% between TR1 and TR2 enables accurate current mirroring without trimming resistors. |
| No mutual interference | Electrically isolated die structure eliminates crosstalk - essential for noise-sensitive analog signal paths. |
| Reduced board space | Dual-transistor integration cuts component count by 50% vs. discrete SOT23 pairs, saving ≥3.5 mm² PCB area. |
Applications
| LED Driver Bias Network | Complementary Logic Level Shifter |
|---|---|
Use Scenario: Biasing constant-current LED strings in portable instrumentation displays where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Dual PNP pair acts as current-source mirror and active pull-down stage for PWM-controlled anode drivers. Use Value: Matched hFE ensures uniform LED brightness across channels; low VCE(sat) minimizes power dissipation in battery-powered operation. |
Use Scenario: Translating 3.3 V logic signals to −5 V or −12 V domains in legacy industrial interface modules. IC Role / Device Role / Timing Role: TR1 and TR2 operate as open-collector inverters with shared emitter pull-up, forming a bidirectional level-shifting pair. Use Value: Independent base control enables precise timing alignment; low Cc preserves edge integrity up to 10 MHz. |
| Dual-Channel Load Switch | Current Mirror Reference |
Use Scenario: Enabling/disabling two independent 100 mA sensor supply rails in automotive body control modules. IC Role / Device Role / Timing Role: Each transistor functions as a grounded-emitter high-side switch controlled via base current limiting. Use Value: −65 V rating accommodates load dump transients; thermal resistance of 416 K/W allows sustained operation at 85 °C ambient. |
Use Scenario: Generating matched reference currents for precision ADC biasing in medical sensor front-ends. IC Role / Device Role / Timing Role: TR1 configured as diode-connected reference; TR2 mirrors its collector current with minimal offset. Use Value: Gain matching reduces current error to <2% over −40 °C to +85 °C, eliminating need for laser-trimmed resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC857BS | VCEO = −45 V, hFE = 220–475, identical SOT363-3 package and pinout | Limited to lower-voltage rails (e.g., −24 V systems); unsuitable for −48 V telecom or industrial −60 V designs | Select when operating below −45 V and higher hFE tolerance is acceptable. |
| MBT3906DW1T1G | VCEO = −40 V, hFE = 100–300, SOT-363 package but different pin assignment (E-B-C-E-B-C vs. E-B-C-E-B-C layout matches) | Lower gain consistency and reduced voltage margin; pinout differs - requires PCB redesign | Choose only if cost sensitivity outweighs design reuse and performance requirements. |
Compared with BC856BS/DG/B2,115, BC857BS trades 20 V breakdown margin for slightly higher gain spread, while MBT3906DW1T1G sacrifices both voltage rating and pin compatibility - making BC856BS the optimal choice for −65 V robustness and drop-in dual-transistor integration.
Availability
BC856BS/DG/B2,115 is available at Aetrix Electronics and suitable for LED driver bias networks, complementary logic level shifters, dual-channel load switches, and current mirror references requiring stable component supply across automotive infotainment, industrial PLC I/O modules, and portable medical instrumentation.
Supply support for BC856BS/DG/B2,115 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 global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BC856BS belongs to Nexperia's general-purpose bipolar transistor family, engineered for space-constrained analog and digital switching applications where matched performance, thermal efficiency, and SMT manufacturability are critical.
FAQ
Is BC856BS/DG/B2,115 automotive qualified?
No. BC856BS/DG/B2,115 is not AEC-Q101 qualified and lacks automotive-specific testing or qualification documentation. It is intended for industrial, consumer, and computing applications. For automotive use, Nexperia offers the BC856BQ series, which undergoes full AEC-Q101 stress testing and includes PPAP documentation support.
What is the maximum allowable pulsed collector current?
The peak collector current ICM is −200 mA under single-pulse conditions with pulse width ≤ 1 ms and duty cycle ≤ 2%. This rating applies only when junction temperature remains within 150 °C, requiring adherence to the transient thermal impedance curve (Figure 2) and proper PCB copper area for heat dissipation.
Can BC856BS/DG/B2,115 replace BC846BS in NPN/NPN applications?
No. BC856BS is a PNP/PNP pair and is not functionally interchangeable with the NPN/NPN BC846BS. Attempting substitution would reverse polarity and cause circuit failure. The correct complement is BC846BS for NPN/NPN needs or BC846BPN for NPN/PNP mixed pairs - all share the same SOT363-3 package and pinout.
Does the marking code %E6 indicate date code or lot traceability?
The marking code %E6 encodes manufacturing site (% placeholder) and device type (E6), per Table 4. Date code and lot traceability are not embedded in the visible top-mark; full traceability requires scanning the barcode on the reel label or consulting the manufacturer's lot disposition report provided with shipment documentation.
BC856BS/DG/B2,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- 2 PNP (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 65V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 300mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BC856BS/DG/B2,115 FAQ
1.How can I place an order for BC856BS/DG/B2,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC856BS/DG/B2,115 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 BC856BS/DG/B2,115 reliable?
The price and inventory of BC856BS/DG/B2,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC856BS/DG/B2,115 is usually 5 days.
3.What payment methods are accepted for BC856BS/DG/B2,115?
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4.How is shipping managed for BC856BS/DG/B2,115?
BC856BS/DG/B2,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC856BS/DG/B2,115 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 BC856BS/DG/B2,115?
For technical support, including BC856BS/DG/B2,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC856BS/DG/B2,115 requirements.
6.How does Aetrix verify that BC856BS/DG/B2,115 is sourced from the original manufacturer or authorized distributors?
All BC856BS/DG/B2,115 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 BC856BS/DG/B2,115 meets industry standards.
7.What is the process for return or replacement of BC856BS/DG/B2,115?
All BC856BS/DG/B2,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC856BS/DG/B2,115, 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 BC856BS/DG/B2,115 part is unused and in its original packaging.
Return procedure for BC856BS/DG/B2,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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