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Nexperia USA Inc. BC816-25R
- Part No.:
- BC816-25R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC816-25R.pdf
- Description:
- TRANS NPN 80V 0.5A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:24,269
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Product details
Overview
BC816-25R from Nexperia is an AEC-Q101 qualified NPN general-purpose transistor in SOT23 (TO-236AB) package, rated for 80 V VCEO, 500 mA continuous IC, and 400 hFE at VCE = 1 V / IC = 100 mA, used for automotive 48 V board-net switching and low-power amplification.
For engineers reviewing the BC816-25R datasheet, BC816-25R pinout, BC816-25R application, or BC816-25R equivalent, this page delivers verified electrical parameters, thermal derating behavior, base-emitter saturation voltage under pulsed drive, and validated automotive-grade reliability data - all confirmed against Nexperia's official Rev. 2 product specification.
Technical Context
The BC816-25R operates as a silicon planar epitaxial NPN transistor with open-base collector-emitter breakdown of 80 V and emitter-base breakdown of 7 V, supporting stable DC and pulsed switching up to 1 A peak ICM with 200 mA peak IBM. Its hFE range (160–400) enables precise current gain selection for biasing and signal amplification circuits.
Thermal resistance Rth(j-a) is 500 K/W on standard FR4 PCB and improves to 363 K/W with 1 cm² collector pad, directly informing layout-dependent power handling. Transient thermal impedance curves confirm safe operation under 300 μs pulses at duty cycles ≤ 0.02.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum sustainable collector-emitter voltage before breakdown in open-base configuration. |
| IC | 500 mA - Continuous DC collector current rating at Tamb ≤ 25 °C with standard PCB mounting. |
| hFE | 160–400 - DC current gain at VCE = 1 V, IC = 100 mA, enabling predictable base drive sizing. |
| VCE(sat) | ≤ 400 mV - Collector-emitter saturation voltage at IC = 500 mA / IB = 50 mA, minimizing conduction loss. |
| Ptot | 345 mW - Total power dissipation limit on FR4 PCB with 1 cm² collector pad at Tamb = 25 °C. |
| Tj(max) | 150 °C - Maximum junction temperature, defining thermal shutdown thresholds in automotive environments. |
| fT | 100 MHz - Transition frequency at VCE = 5 V, IC = 50 mA, supporting high-speed switching up to ~10 MHz. |
Pinout & Package
SOT23 (TO-236AB) surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.45 mm nominal lead pitch, and tin-plated terminations compatible with reflow and wave soldering per Figures 13–14.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal requiring 50 mA peak base current to saturate at 500 mA collector load. |
| 2 | Emitter (E) | Current return path; internally connected to substrate; requires low-impedance grounding for stability. |
| 3 | Collector (C) | High-side switching node; thermally coupled to PCB pad; supports 1 A pulse current with <1 ms duration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including 48 V board-net systems with extended temperature cycling and HTRB testing. |
| Two hFE selections | BC816-25R provides 160–400 hFE range versus BC816-16R's 100–250, enabling tighter bias control in production batches. |
| High-voltage capability | 80 V VCEO and VCBO ratings support robust operation in industrial 24/48 V supply rails without derating. |
| Pulsed current handling | 1 A ICM with tp ≤ 1 ms allows short-circuit protection and inrush current limiting in relay drivers. |
| Low VBE(sat) | ≤ 1.2 V at IC = 500 mA ensures compatibility with 3.3 V and 5 V microcontroller GPIO drive without external buffers. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Driving LED clusters and small solenoids in door modules and lighting controllers. IC Role / Device Role / Timing Role: NPN switch controlling 500 mA loads from 12 V or 48 V battery rails. Use Value: 400 mV VCE(sat) minimizes heat generation during continuous PWM dimming at 1 kHz. |
Use Scenario: Level-shifting and buffering analog sensor outputs into ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier providing low-output-impedance signal conditioning. Use Value: 160–400 hFE range ensures stable gain across temperature (-55 °C to 150 °C) without recalibration. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment |
Use Scenario: Optocoupler-driven primary-side feedback in isolated AC/DC converters. IC Role / Device Role / Timing Role: Fast-switching transistor translating opto output to PWM controller enable/disable signals. Use Value: 100 MHz fT supports clean edge transitions for sub-μs timing margins in 100 kHz+ SMPS designs. |
Use Scenario: Isolated signal gating in patient-connected monitoring circuits. IC Role / Device Role / Timing Role: Safety-isolated switch enabling/disabling analog front-end paths during calibration. Use Value: AEC-Q101 qualification confirms long-term reliability under continuous 24/7 operation in Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC816-16R | Lower hFE range (100–250) and identical VCEO/IC ratings. | Preferred where lower gain reduces sensitivity to base drive variation in high-volume consumer products. | Select when tighter hFE tolerance is unnecessary and cost optimization is prioritized over gain headroom. |
| MMBT3904LT1G | 40 V VCEO, 200 mA IC, 100–300 hFE - lower voltage/current capability. | Suitable only for 5–12 V logic-level switching; not rated for 48 V automotive use. | Choose only for non-automotive, low-power digital interface applications where 80 V margin is not required. |
Compared with BC816-16R, the BC816-25R offers higher hFE for improved base drive efficiency in marginal-voltage conditions; versus MMBT3904LT1G, it delivers 2× voltage rating and 2.5× current capacity - critical for automotive and industrial 48 V system compliance.
Availability
BC816-25R is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer power adapter feedback circuits, and medical diagnostic equipment requiring stable component supply across extended temperature ranges.
Supply support for BC816-25R 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 advanced packaging technologies.
The BC816 series belongs to Nexperia's AEC-Q101 qualified general-purpose transistor family, engineered specifically for robust switching and amplification in harsh automotive and industrial environments.
FAQ
Is BC816-25R pin-compatible with BC816-16R?
Yes - both share identical SOT23 (TO-236AB) pinout (1=B, 2=E, 3=C), same mechanical dimensions, and identical thermal footprint requirements. The only functional difference is hFE binning; no PCB redesign is needed for substitution.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 200 mA (single pulse, tp ≤ 1 ms), but for continuous DC operation, base current must be limited to maintain Tj ≤ 150 °C. At IC = 500 mA and hFE = 160, IB ≈ 3.1 mA - well within safe steady-state limits.
Does BC816-25R support wave soldering?
Yes - Nexperia specifies wave soldering footprints in Figure 14, with recommended solder land dimensions of 2.8 mm × 1.4 mm per pad and preferred transport direction aligned with the 3-pin axis. Thermal mass remains within JEDEC J-STD-020 limits.
How does thermal performance change with PCB copper area?
Rth(j-a) drops from 500 K/W (standard footprint) to 363 K/W when the collector pad is expanded to 1 cm² on single-sided FR4. This 27% improvement allows 345 mW dissipation at 25 °C ambient versus 250 mW with minimal copper - directly impacting reliability in sealed enclosures.
BC816-25R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC816
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 160 @ 100mA, 1V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BC816-25R FAQ
1.How can I place an order for BC816-25R through Aetrix?
Please submit a Request for Quotation (RFQ) for BC816-25R 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 BC816-25R reliable?
The price and inventory of BC816-25R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC816-25R is usually 5 days.
3.What payment methods are accepted for BC816-25R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC816-25R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC816-25R?
BC816-25R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC816-25R 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 BC816-25R?
For technical support, including BC816-25R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC816-25R requirements.
6.How does Aetrix verify that BC816-25R is sourced from the original manufacturer or authorized distributors?
All BC816-25R 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 BC816-25R meets industry standards.
7.What is the process for return or replacement of BC816-25R?
All BC816-25R units undergo pre-shipment inspection (PSI). If there is an issue with BC816-25R, 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 BC816-25R part is unused and in its original packaging.
Return procedure for BC816-25R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC816-25R Tags
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