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Nexperia USA Inc. BC806-25WX
- Part No.:
- BC806-25WX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC806-25WX.pdf
- Description:
- TRANS PNP 80V 0.5A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:5,850
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Product details
Overview
BC806-25WX from Nexperia is a PNP bipolar junction transistor in SOT323 (SC-70) package, rated for −80 V VCEO, −500 mA IC, and offering hFE = 160–400 at VCE = −1 V and IC = −100 mA. It serves as a general-purpose switching and amplification device in automotive 48 V board nets and industrial control signal stages.
For engineers reviewing the BC806-25WX datasheet, BC806-25WX pinout, BC806-25WX application, or BC806-25WX equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating curves, SOT323 footprint dimensions, and direct comparison with BC806-16WX and BC816-25WX alternatives.
Technical Context
This PNP transistor operates in active, saturation, and cutoff regions with defined breakdown limits: V(BR)CEO = −80 V, V(BR)CBO = −80 V, and V(BR)EBO = −8 V. Its pulsed peak collector current reaches −1 A (tp ≤ 1 ms), supporting transient load switching in automotive power distribution.
Thermal performance is characterized by Rth(j-a) = 625 K/W (standard FR4 footprint) and 431 K/W (1 cm² collector pad), enabling reliable operation up to Tj = 150 °C. The device exhibits fT = 80 MHz at VCE = −5 V and IC = −50 mA, confirming suitability for medium-speed digital and analog signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −80 V - Maximum safe collector-emitter voltage under open-base condition; supports 48 V automotive systems with margin. |
| IC | −500 mA - Continuous DC collector current rating; sufficient for relay drivers and LED array switches. |
| hFE | 160–400 - DC current gain range at VCE = −1 V, IC = −100 mA; enables predictable base drive sizing. |
| VCE(sat) | −400 mV max at IC = −500 mA, IB = −50 mA - Low saturation voltage reduces conduction loss in switching applications. |
| Ptot | 290 mW at Tamb ≤ 25 °C - Power dissipation limit on standard FR4 PCB; requires thermal derating above ambient. |
| fT | 80 MHz - Transition frequency confirms usable bandwidth for PWM control signals up to ~10 MHz. |
| Cc | 5 pF - Collector capacitance at VCB = −10 V; low value minimizes high-frequency coupling in multi-stage amplifiers. |
Pinout & Package
SOT323 (SC-70) is a 3-pin, surface-mount plastic package measuring 2.2 mm × 1.35 mm × 0.95 mm (L × W × H), with gull-wing leads optimized for reflow soldering per IPC-7351B standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; accepts negative bias current to turn on PNP conduction path between emitter and collector. |
| 2 | Emitter (E) | Current source terminal; connected to higher potential rail (e.g., +48 V) in high-side switch configurations. |
| 3 | Collector (C) | Current sink terminal; routes switched load current to ground or lower-potential node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature range (−40 °C to +150 °C) and stress tests including HTGB, HTRB, and ESD-HBM ≥ 2 kV. |
| Two hFE bins | BC806-25WX provides tighter gain spread (160–400) vs. BC806-16WX (100–250), simplifying gain-critical amplifier design. |
| High-voltage capability | −80 V VCEO and VCBO ratings enable use in 48 V battery systems with >65% safety margin over nominal rail. |
| Low VCE(sat) | ≤ −400 mV at full rated current ensures <200 mW conduction loss in saturated switching, reducing thermal load. |
| Small-footprint SOT323 | 0.95 mm height and 2.2 mm length allow dense placement in space-constrained ECUs and sensor modules. |
Applications
| Automotive 48 V Board Net | Industrial Relay Driver |
|---|---|
|
Use Scenario: Switching of auxiliary loads (e.g., HVAC actuators, lighting modules) on 48 V vehicle electrical architecture. IC Role / Device Role / Timing Role: High-side PNP switch controlling current flow from 48 V rail to load, driven by microcontroller GPIO via base resistor. Use Value: −80 V rating provides 20 V headroom above 48 V nominal; AEC-Q101 qualification ensures reliability across temperature and vibration profiles. |
Use Scenario: Driving electromagnetic relays requiring 100–300 mA coil current in PLC I/O modules. IC Role / Device Role / Timing Role: Saturated PNP switch sourcing coil current from 24 V supply, with fast turn-off enabled by base pull-down resistor. Use Value: −500 mA IC and −400 mV VCE(sat) ensure full relay actuation with <120 mW dissipation at 25 °C ambient. |
| LED Array Current Sink | Signal-Level Amplifier Stage |
|
Use Scenario: Constant-current sinking for multi-segment LED displays in dashboard instrumentation. IC Role / Device Role / Timing Role: Linear-mode PNP current regulator with emitter-follower configuration and precision base bias network. Use Value: hFE = 160–400 allows stable 20–100 mA output with ±5% variation across production lots and temperature. |
Use Scenario: Low-noise preamplification of sensor signals (e.g., thermistor, potentiometer) in embedded control units. IC Role / Device Role / Timing Role: Common-emitter amplifier stage with fixed bias and emitter degeneration resistor for gain stability. Use Value: fT = 80 MHz and Cc = 5 pF support bandwidth up to 5 MHz with minimal phase shift in closed-loop feedback paths. |
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 |
|---|---|---|---|
| BC806-16WX | Lower hFE range (100–250); identical VCEO, IC, and package. | Suitable where gain tolerance >±50% is acceptable; less sensitive to base drive variation. | Select when cost sensitivity outweighs gain consistency requirements. |
| BC816-25WX | NPN complement; same VCEO, IC, hFE range, and SOT323 package. | Used in low-side switching or NPN amplifier topologies; requires inverted logic drive. | Choose for complementary pair designs or where NPN topology simplifies PCB routing. |
Compared with BC806-16WX, BC806-25WX offers higher and tighter hFE for improved current control accuracy; versus BC816-25WX, it enables high-side switching without level-shifting circuitry but requires negative base bias management.
Availability
BC806-25WX is available at Aetrix Electronics and suitable for automotive 48 V board net switching, industrial relay drivers, LED array current sinks, and signal-level amplifier stages requiring stable component supply and AEC-Q101 compliance.
Supply support for BC806-25WX 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 packaging.
The BC806W series targets cost-sensitive, space-constrained applications requiring robust PNP switching in automotive and industrial environments, emphasizing AEC-Q101 compliance and SOT323 manufacturability.
FAQ
Is BC806-25WX pin-compatible with BC806-16WX?
Yes - both share identical SOT323 (SC-70) pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. No PCB layout change is required when upgrading from BC806-16WX to BC806-25WX for improved hFE consistency.
What is the maximum allowable junction temperature during continuous operation?
The absolute maximum junction temperature is 150 °C. At ambient temperatures above 25 °C, power dissipation must be derated linearly per Fig. 1 in the datasheet: Ptot drops by 2.3 mW/°C above 25 °C on standard FR4 PCB.
Does BC806-25WX support pulse operation beyond its DC current rating?
Yes - it supports −1 A peak collector current for single pulses ≤1 ms (duty cycle ≤2%), as specified in Table 6. This enables short-duration surge handling in motor commutation or solenoid actuation circuits.
How does the AEC-Q101 qualification impact its use in non-automotive applications?
AEC-Q101 qualification ensures extended temperature operation (−40 °C to +150 °C), enhanced reliability testing (HTGB, HTRB, ESD), and lot traceability - benefits that directly improve field lifetime in industrial, medical, and telecom equipment without requiring additional qualification effort.
BC806-25WX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 63 @ 150mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 155MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC806-25WX FAQ
1.How can I place an order for BC806-25WX through Aetrix?
Please submit a Request for Quotation (RFQ) for BC806-25WX 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 BC806-25WX reliable?
The price and inventory of BC806-25WX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC806-25WX is usually 5 days.
3.What payment methods are accepted for BC806-25WX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC806-25WX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC806-25WX?
BC806-25WX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC806-25WX 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 BC806-25WX?
For technical support, including BC806-25WX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC806-25WX requirements.
6.How does Aetrix verify that BC806-25WX is sourced from the original manufacturer or authorized distributors?
All BC806-25WX 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 BC806-25WX meets industry standards.
7.What is the process for return or replacement of BC806-25WX?
All BC806-25WX units undergo pre-shipment inspection (PSI). If there is an issue with BC806-25WX, 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 BC806-25WX part is unused and in its original packaging.
Return procedure for BC806-25WX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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