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Nexperia USA Inc. BC816-25H-QR
- Part No.:
- BC816-25H-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC816-25H-QR.pdf
- Description:
- TRANS NPN 80V 0.5A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,733
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Product details
Overview
BC816-25H-QR from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT23 (TO-236AB) package, rated for 80 V VCEO, 500 mA IC, and DC current gain (hFE) of 160–400 at VCE = 1 V, IC = 100 mA. It operates up to 175 °C junction temperature and serves as a robust switching or amplification device in automotive 48 V board nets.
For engineers reviewing the BC816-25H-QR datasheet, BC816-25H-QR pinout, BC816-25H-QR application, or BC816-25H-QR equivalent, key selection criteria include its high-voltage capability, automotive qualification, thermal stability at 175 °C, and discrete gain binning-critical for consistent biasing in engine control modules and body electronics.
Technical Context
This NPN bipolar junction transistor features a planar epitaxial die structure optimized for stable gain across wide temperature ranges (−55 °C to +175 °C) and low saturation voltage (VCE(sat) ≤ 400 mV at IC = 500 mA, IB = 50 mA). Its 80 V collector-emitter breakdown rating supports operation in 48 V automotive systems with margin against load-dump transients.
The device uses standard SOT23 footprint with defined thermal pad layout per JEDEC TO-236AB, enabling predictable power dissipation (Ptot = 415 mW with 1 cm² collector pad) and compatibility with reflow and wave soldering per Nexperia's validated profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Withstands 48 V system transients with ≥1.6× safety margin, suitable for unregulated automotive rail switching. |
| IC | 500 mA continuous - Supports medium-power loads such as LED drivers, relay coils, and sensor interface stages. |
| hFE | 160–400 at VCE = 1 V, IC = 100 mA - Tight gain bin enables predictable base drive design without trimming resistors. |
| VCE(sat) | ≤ 400 mV at IC = 500 mA, IB = 50 mA - Minimizes conduction loss and self-heating in high-duty-cycle switching. |
| Tj(max) | 175 °C - Enables placement near heat sources (e.g., power converters) without derating in under-hood applications. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors, including HTGB, HTRB, and ESD. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package with 3 leads; 1.3 mm × 2.9 mm footprint, 1.1 mm height, and tin-plated terminations compatible with lead-free reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires series resistor to limit IB and ensure saturation under worst-case hFE min. |
| 2 | Emitter (E) | Reference terminal for bias network; connected to ground or low-side return path in common-emitter configurations. |
| 3 | Collector (C) | High-current output node; routed to power rail or load; thermal pad on PCB improves heat transfer in high-power operation. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage rating | 80 V VCEO enables use in 48 V architectures with headroom for ISO 7637-2 pulse 5a (load dump up to 60 V). |
| Automotive qualification | AEC-Q101 compliance ensures reliability in engine bay, transmission, and chassis control units over full vehicle lifetime. |
| Wide temperature range | Operates from −55 °C to +175 °C junction temperature-supports placement near power MOSFETs or DC/DC converters. |
| Two gain bins | BC816-25H-Q offers hFE = 160–400 vs. BC816-16H-Q (100–250), allowing precise gain matching for analog feedback or current mirror circuits. |
| Low thermal resistance | Rth(j-a) = 363 K/W with 1 cm² collector pad-reduces ΔTj-a by ~30% versus standard footprint, improving long-term stability. |
Applications
| Engine Control Unit (ECU) Input Protection | Body Control Module (BCM) Relay Driver |
|---|---|
Use Scenario: Clamping transient voltages on sensor inputs exposed to 12 V/48 V battery rails in engine compartments. IC Role / Device Role / Timing Role: NPN transistor configured as active clamp or level-shifting switch to protect downstream MCU GPIOs. Use Value: 80 V VCEO withstands load-dump spikes; 175 °C Tj(max) ensures functionality during extended high-temperature soak tests. |
Use Scenario: Driving 12 V or 24 V electromagnetic relays in door lock, lighting, or HVAC subsystems. IC Role / Device Role / Timing Role: Medium-current NPN switch providing >500 mA sink capability with low VCE(sat) to minimize coil heating. Use Value: 400 mV max VCE(sat) reduces power loss to <200 mW at full load, eliminating need for heatsinking in compact BCM layouts. |
| Automotive Infotainment Power Sequencing | ADAS Camera Module Bias Supply |
Use Scenario: Enabling/disabling auxiliary power rails (e.g., USB PHY, display backlight) with controlled ramp-up timing. IC Role / Device Role / Timing Role: Low-gain NPN used in emitter-follower configuration for soft-start current limiting and sequencing control. Use Value: Tight hFE bin (160–400) ensures repeatable base current demand across production lots, simplifying timing capacitor selection. |
Use Scenario: Providing stable bias current to image sensor analog front-end (AFE) stages in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Constant-current source built around BC816-25H-Q with precision emitter resistor for low-noise sensor biasing. Use Value: Gain stability over −40 °C to +125 °C ambient ensures consistent AFE performance across vehicle operating conditions. |
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 |
|---|---|---|---|
| BC816-25-7-F (Diodes Inc.) | Same VCEO (80 V), IC (500 mA), and hFE bin (160–400); slightly higher VCE(sat) (max 500 mV vs. 400 mV) and no AEC-Q101 documentation. | Not qualified for automotive use; suitable only for industrial or consumer-grade 48 V systems where AEC compliance is not mandated. | Select when cost sensitivity outweighs automotive qualification and thermal performance is less critical. |
| MMBT4401-7-F (Diodes Inc.) | Lower VCEO (40 V), same IC (600 mA), wider hFE range (100–300); AEC-Q101 qualified but not rated for 175 °C operation. | Limited to 12 V/24 V systems; unsuitable for 48 V board nets or under-hood locations exceeding 150 °C ambient. | Choose only for non-automotive 24 V applications requiring higher peak current and lower cost, with relaxed thermal and voltage margins. |
Compared with BC816-25H-QR, BC816-25-7-F lacks automotive qualification and has higher saturation loss, while MMBT4401-7-F sacrifices 48 V capability and high-temperature operation-making BC816-25H-QR the sole option meeting full AEC-Q101, 80 V, and 175 °C requirements simultaneously.
Availability
BC816-25H-QR is available at Aetrix Electronics and suitable for automotive ECU design, body control module production, and ADAS camera subsystem development requiring stable component supply and full AEC-Q101 traceability.
Supply support for BC816-25H-QR 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BC816-25H-QR belongs to the BC816H-Q series of AEC-Q101-qualified general-purpose transistors engineered specifically for robust, high-temperature switching in modern automotive 48 V electrical architectures.
FAQ
Is BC816-25H-QR pin-compatible with BC816-16H-Q?
Yes-both share identical SOT23 (TO-236AB) package and pinout (1: Base, 2: Emitter, 3: Collector). The only difference is hFE binning (160–400 vs. 100–250), allowing direct substitution where higher minimum gain is acceptable or required.
What is the maximum allowable PCB copper area for optimal thermal performance?
With a 1 cm² copper pad connected to the collector (Pin 3), Rth(j-a) improves to 363 K/W. Using the standard footprint without extended pad yields 500 K/W. Layout must follow Nexperia's Fig. 29 reflow land pattern (0.6 mm × 0.6 mm pads, 0.5 mm spacing) for reliability.
Does BC816-25H-QR support pulsed operation beyond 500 mA?
Yes-peak collector current ICM is rated at 1 A for single pulses ≤1 ms. This enables short-duration surge handling in motor commutation or solenoid actuation, provided duty cycle remains ≤2% and average power stays within Ptot limits.
How does the QR marking code correlate to the part number?
"QR" is the manufacturer-specific marking code for BC816-25H-Q, printed on the top surface of the SOT23 package. It is followed by a placeholder (%) for the manufacturing site code, per Table 5 in the datasheet-used for traceability, not functional differentiation.
BC816-25H-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC816H
- 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
BC816-25H-QR FAQ
1.How can I place an order for BC816-25H-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BC816-25H-QR 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 BC816-25H-QR reliable?
The price and inventory of BC816-25H-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC816-25H-QR is usually 5 days.
3.What payment methods are accepted for BC816-25H-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC816-25H-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC816-25H-QR?
BC816-25H-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC816-25H-QR 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 BC816-25H-QR?
For technical support, including BC816-25H-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC816-25H-QR requirements.
6.How does Aetrix verify that BC816-25H-QR is sourced from the original manufacturer or authorized distributors?
All BC816-25H-QR 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 BC816-25H-QR meets industry standards.
7.What is the process for return or replacement of BC816-25H-QR?
All BC816-25H-QR units undergo pre-shipment inspection (PSI). If there is an issue with BC816-25H-QR, 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 BC816-25H-QR part is unused and in its original packaging.
Return procedure for BC816-25H-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC816-25H-QR Tags
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