Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. BC806-25R

Name: BC806-25R
Brand: Nexperia USA Inc.
SKU: BC806-25R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BC806-25R

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BC806-25R.pdf

Description:: TRANS PNP 80V 0.5A TO-236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,215

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BC806-25R from Nexperia is a PNP bipolar junction transistor (BJT) designed for general-purpose switching and linear amplification in automotive and industrial SMT applications. It delivers −80 V V_CEO, −500 mA I_C, DC current gain (h_FE) of 160–400 at V_CE = −1 V / I_C = −100 mA, AEC-Q101 qualification, and operates in the SOT23 (TO-236AB) package.

For engineers reviewing the BC806-25R datasheet, BC806-25R pinout, BC806-25R application, or BC806-25R equivalent, this page provides verified electrical parameters, thermal derating curves, base-emitter saturation behavior, collector-emitter on-state voltage under load, and automotive-grade reliability context - all critical for 48 V board net design and discrete power stage validation.

Technical Context

The BC806-25R is a silicon PNP BJT with planar epitaxial die construction optimized for stable DC current gain across temperature (−55 °C to +150 °C) and robust pulsed operation (I_CM = −1 A, t_p ≤ 1 ms). Its high V_CEO rating enables use in 48 V automotive supply rails without cascading protection.

It features low V_CE(sat) (−400 mV max at I_C = −500 mA / I_B = −50 mA) and moderate f_T (80 MHz), supporting both switching (e.g., load switching, relay drivers) and analog functions (e.g., current mirrors, level shifters) where gain consistency and thermal stability are prioritized over RF performance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V: Withstands full reverse bias in 48 V systems with margin for transients and ripple.
I_C	−500 mA continuous: Supports medium-power loads such as solenoids, LED strings, and small motors.
h_FE	160–400 at I_C = −100 mA: Enables predictable base drive sizing for reliable saturation in switching designs.
V_CE(sat)	−400 mV max at I_C = −500 mA / I_B = −50 mA: Limits conduction loss to ≤200 mW per device under full load.
P_tot	345 mW at T_amb ≤ 25 °C on FR4 PCB with 1 cm² collector pad: Defines thermal layout requirements for sustained operation.
AEC-Q101	Qualified per Stress Test Qualification for Discrete Semiconductors: Validated for automotive under-hood and chassis applications.

Pinout & Package

SOT23 (TO-236AB) surface-mount plastic package: 3-pin, 1.3 mm × 2.9 mm footprint, 0.95 mm height, tin-plated leads, compatible with standard reflow and wave soldering profiles per Figures 13–14.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal; requires −10 mA typical base drive for full saturation at −500 mA collector current.
2	Emitter (E)	Current source node; connected to higher potential rail (e.g., +48 V) in high-side switch configurations.
3	Collector (C)	Load return path; thermally coupled to PCB copper for power dissipation management per Fig. 1.

Key Features

Feature	Design Value
High-voltage PNP architecture	−80 V V_CEO supports direct interface with 48 V battery systems without external clamping.
Two-tier h_FE binning	BC806-25 offers tighter 160–400 gain spread vs. BC806-16 (100–250), simplifying base resistor selection in production.
AEC-Q101 qualification	Validated for automotive temperature cycling, humidity, mechanical shock, and ESD per JESD22 standards.
Thermal derating support	363 K/W R_th(j-a) with 1 cm² collector pad enables >200 mW usable power at 70 °C ambient.

Applications

Automotive Load Switching

Industrial Signal Level Shifting

Use Scenario: Controlling 48 V solenoid valves or fuel injectors in engine control units.

IC Role / Device Role / Timing Role: High-side PNP switch turning on/off load current with fast turn-off via base pull-up.

Use Value: −400 mV V_CE(sat) minimizes heat generation during active state; AEC-Q101 ensures reliability across thermal cycles.

Use Scenario: Converting 3.3 V logic signals to interface with 12 V/24 V sensor inputs in PLC modules.

IC Role / Device Role / Timing Role: Inverting level shifter with defined h_FE enabling precise output voltage swing and noise immunity.

Use Value: 160–400 h_FE range allows consistent gain matching across batches without trimming.

DC-DC Converter Bias Circuit

Overvoltage Protection Clamp

Use Scenario: Providing bias current to error amplifiers or reference circuits in isolated flyback converters.

IC Role / Device Role / Timing Role: Linear-mode current source delivering stable −100 mA with <±5% variation over temperature.

Use Value: Low V_BE (−1.2 V max) and tight h_FE tolerance reduce quiescent current drift in feedback networks.

Use Scenario: Acting as crowbar element in 48 V telecom power supplies during overvoltage events.

IC Role / Device Role / Timing Role: Fast-turn-on PNP triggered by Zener reference to short excess voltage to ground.

Use Value: −1 A I_CM peak rating handles transient surges; −8 V V_EBO prevents premature emitter-base breakdown.

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
BC807-25	NPN complement; same V_CEO, I_C, h_FE range, and package; polarity reversal required in circuit.	Used where low-side switching or NPN-compatible topology is preferred (e.g., grounded-load configurations).	Select when driving loads referenced to ground rather than supply rail.
ZTX653	Higher V_CEO (−100 V), higher P_tot (1 W), TO-92 package; no AEC-Q101 qualification.	Suitable for non-automotive industrial power supplies requiring greater voltage headroom and thermal margin.	Choose for non-automotive applications needing >−80 V blocking or >345 mW dissipation.

Compared with BC807-25, BC806-25R enables high-side switching without topology change but requires careful base drive polarity; versus ZTX653, it trades off voltage margin and thermal capacity for AEC-Q101 compliance and SMT manufacturability.

Availability

BC806-25R is available at Aetrix Electronics and suitable for automotive load switching, industrial signal level shifting, DC-DC converter bias circuits, and overvoltage protection clamps requiring stable component supply, AEC-Q101 validation, and SOT23 footprint compatibility.

Supply support for BC806-25R 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BC806 series belongs to Nexperia's general-purpose transistor product line, engineered for robustness in harsh environments and optimized for cost-sensitive, high-volume SMT applications demanding proven reliability and tight parametric control.

FAQ

What is the maximum allowable base current for BC806-25R?

The absolute maximum peak base current (I_BM) is −200 mA per Table 6, specified for single pulses ≤1 ms. For continuous operation, base current must be limited to ensure I_C ≤ −500 mA and V_CE(sat) remains within spec - typically ≤−50 mA for full saturation at rated collector current.

Is BC806-25R suitable for linear amplifier applications?

Yes - its DC current gain (160–400) and low V_CE(sat) support Class-A and Class-AB linear operation at frequencies up to 10 MHz. However, f_T = 80 MHz limits bandwidth; thermal derating must be applied per Figure 1 to maintain junction temperature ≤150 °C under continuous bias.

How does the marking code %GS identify BC806-25R?

%GS is the top-side laser marking for BC806-25R, where "%" is a placeholder for Nexperia's manufacturing site code (e.g., "A" for Nijmegen, "B" for Manchester), and "GS" denotes the −25 gain bin. This matches Table 5 and distinguishes it from BC806-16 (%GR) and other variants in the series.

Can BC806-25R replace BC806-16 in existing designs?

Yes, with verification - both share identical package, voltage/current ratings, and pinout, but BC806-25R has higher minimum h_FE (160 vs. 100). This may reduce required base drive current, but could affect stability in feedback loops relying on lower gain; check loop gain margins and saturation behavior under worst-case conditions.

BC806-25R Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

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:: 400mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 160 @ 100mA, 1V

Power - Max:: 250 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BC806-25R FAQ

1.How can I place an order for BC806-25R through Aetrix?

Please submit a Request for Quotation (RFQ) for BC806-25R 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 BC806-25R reliable?

The price and inventory of BC806-25R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC806-25R is usually 5 days.

3.What payment methods are accepted for BC806-25R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC806-25R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC806-25R?

BC806-25R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC806-25R 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 BC806-25R?

For technical support, including BC806-25R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC806-25R requirements.

6.How does Aetrix verify that BC806-25R is sourced from the original manufacturer or authorized distributors?

All BC806-25R 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 BC806-25R meets industry standards.

7.What is the process for return or replacement of BC806-25R?

All BC806-25R units undergo pre-shipment inspection (PSI). If there is an issue with BC806-25R, 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 BC806-25R part is unused and in its original packaging.

Return procedure for BC806-25R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…