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

Nexperia USA Inc. BF823,215

Name: BF823,215
Brand: Nexperia USA Inc.
SKU: BF823,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BF823,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BF823,215.pdf

Description:: TRANS PNP 250V 0.05A TO-236AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,791

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Product details

Overview

BF823 from Nexperia is a PNP high-voltage bipolar junction transistor in SOT23 package, rated for −250 V V_CEO, −50 mA I_C, and 50 minimum h_FE at −25 mA/−20 V. It serves as a high-voltage switching or amplification element in telephony line interface circuits, automotive signal conditioning, and industrial relay drivers where robust off-state blocking is required.

For engineers reviewing the BF823 datasheet, BF823 pinout, BF823 application, or BF823 equivalent, key selection criteria include verified −250 V collector-emitter breakdown, AEC-Q101 qualification for automotive use, thermal resistance of 500 K/W on standard PCB, and confirmed SOT23 pin 1–3 base–emitter–collector mapping per Nexperia's official outline.

Technical Context

This discrete PNP transistor operates in linear or saturated switching mode with fixed polarity biasing. Its −250 V V_CEO and −250 V V_CBO enable reliable operation in high-impedance, high-voltage analog signal paths and open-collector logic interfaces.

Designed for stable DC gain (h_FE ≥ 50 at −25 mA/−20 V) and low leakage (ICBO ≤ −10 nA at −200 V/25 °C), it supports precise current sourcing in telecom line cards and feedback networks where leakage-induced offset must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−250 V - Maximum safe collector-emitter voltage with base open; enables use in 200 V-class telecom line feeding without derating.
I_C	−50 mA - Continuous DC collector current rating; defines maximum load drive capability in relay or LED driver stages.
h_FE	50 min @ −25 mA/−20 V - Minimum DC current gain ensures predictable base drive requirements in linear amplifier configurations.
V_CE(sat)	−800 mV max @ −30 mA/−5 mA - Low saturation voltage reduces power loss and self-heating during switching in high-side PNP applications.
f_T	60 MHz - Transition frequency supports small-signal amplification up to audio and low-RF bands (e.g., DSL line drivers).
R_th(j-a)	500 K/W - Thermal resistance on 1 cm² single-sided copper PCB; determines maximum ambient temperature for 150 °C junction limit at full power.

Pinout & Package

SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; collector pad thermally enhanced per Nexperia layout Fig. 1.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased PNP operation; requires negative bias relative to emitter to turn on.
2	Emitter	Current source terminal; connected to higher potential rail in high-side switch configuration.
3	Collector	Output/load terminal; handles −250 V blocking and −50 mA conduction; thermally coupled to PCB pad.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive underhood and infotainment systems per stress test requirements including HTGB, HTRB, and TC.
High V_CEO (−250 V)	Enables direct integration into telephone line interface units (LIUs) without external voltage clamping components.
Low ICBO (−10 nA @ −200 V)	Minimizes standby current error in precision current mirrors and high-impedance sensor bias networks.
SOT23 footprint compatibility	Supports automated placement and reflow soldering using standard 0.6 mm solder paste stencil apertures per Nexperia Fig. 2.

Applications

Telecom Line Interface

Automotive Signal Conditioning

Use Scenario: Driving analog subscriber line interface circuits in VoIP gateways and PBX systems requiring 200 V+ isolation.

IC Role / Device Role / Timing Role: High-voltage PNP switch controlling loop current and polarity reversal in SLIC front-end stages.

Use Value: −250 V V_CEO eliminates need for series-connected transistors or external TVS, reducing BOM count and board space.

Use Scenario: Level-shifting and current sourcing in automotive HVAC control modules interfacing with 12 V/24 V battery rails.

IC Role / Device Role / Timing Role: High-side current source for NTC thermistor biasing and sensor excitation in engine bay temperature monitoring.

Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +125 °C ambient, with validated HTGB performance beyond 1000 hrs.

Industrial Relay Drivers

Medical Isolation Amplifiers

Use Scenario: Controlling 24 VDC industrial relays in PLC output modules where galvanic isolation and fast turn-off are critical.

IC Role / Device Role / Timing Role: PNP emitter-follower stage providing low-impedance current drive to relay coils while maintaining high off-state impedance.

Use Value: −800 mV V_CE(sat) limits coil power dissipation to <15 mW at 20 mA, enabling compact thermal design.

Use Scenario: Input-stage current mirror in isolated patient-monitoring front-ends requiring ultra-low input bias current.

IC Role / Device Role / Timing Role: Precision PNP pair configured for matched h_FE and minimal ICBO drift over temperature.

Use Value: −10 nA ICBO at 25 °C and −10 µA at 150 °C ensures sub-1 µA total input error current in differential amplifiers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage PNP transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-25,215	Lower V_CEO (−45 V), higher h_FE (160–400), same SOT23 package	Not suitable for >−50 V blocking; limited to low-voltage logic-level switching	Select only when voltage stress remains below −40 V and higher gain is prioritized over breakdown margin.
PN2907A	TO-92 package, V_CEO = −60 V, I_C = −600 mA, non-AEC-Q101	Through-hole mounting; higher current but no automotive qualification or SMT compatibility	Choose only for prototyping or legacy through-hole designs where thermal mass outweighs PCB area constraints.

Compared with BC807-25,215 and PN2907A, BF823 uniquely delivers −250 V blocking in SOT23 with AEC-Q101 validation-enabling miniaturized, automotive-grade high-voltage signal control unattainable with either alternative.

Availability

BF823 is available at Aetrix Electronics and suitable for telecom line interface units, automotive HVAC controllers, and industrial PLC output modules requiring stable component supply with guaranteed long-term availability.

Supply support for BF823 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.

BF823 belongs to Nexperia's high-voltage bipolar transistor product line, engineered specifically for robust signal integrity and voltage resilience in telecom infrastructure, automotive body electronics, and industrial control systems.

FAQ

Is BF823 suitable for switching 200 V loads in continuous DC operation?

Yes. BF823 is rated for −250 V V_CEO with base open, and its limiting values specify −250 V V_CBO and −5 V V_EBO. When operated within I_C ≤ −50 mA and P_tot ≤ 250 mW (with appropriate PCB thermal relief), it sustains 200 V DC switching reliably. Derating is recommended above 100 °C ambient.

What is the base-emitter reverse voltage limit, and why does it matter in relay driver circuits?

The VEBO rating is −5 V. In relay driver applications with inductive kickback, this limit prevents reverse-bias breakdown during turn-off transients. A series base resistor ≥1 kΩ and/or Schottky clamp diode is recommended to keep reverse V_EB below −4 V during flyback events.

Does BF823 require special PCB layout for thermal performance?

Yes. The datasheet specifies R_th(j-a) = 500 K/W assumes a 1 cm² single-sided copper pad connected to pin 3 (collector). To achieve rated power dissipation, the collector pad must be ≥1 cm², unmasked, tin-plated, and free of solder resist. Smaller pads increase junction temperature disproportionately.

How does AEC-Q101 qualification impact BF823's use in non-automotive industrial equipment?

AEC-Q101 qualification subjects BF823 to accelerated stress tests (HTGB, TC, HTRB) exceeding standard industrial requirements. This provides higher confidence in long-term reliability under thermal cycling, humidity, and voltage stress-making it preferred for mission-critical industrial controls where field failure risk must be minimized.

BF823,215 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):: 50 mA

Voltage - Collector Emitter Breakdown (Max):: 250 V

Vce Saturation (Max) @ Ib, Ic:: 800mV @ 5mA, 30mA

Current - Collector Cutoff (Max):: 10nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 50 @ 25mA, 20V

Power - Max:: 250 mW

Frequency - Transition:: 60MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BF823,215 FAQ

1.How can I place an order for BF823,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BF823,215 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 BF823,215 reliable?

The price and inventory of BF823,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BF823,215 is usually 5 days.

3.What payment methods are accepted for BF823,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BF823,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BF823,215?

BF823,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BF823,215 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 BF823,215?

For technical support, including BF823,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BF823,215 requirements.

6.How does Aetrix verify that BF823,215 is sourced from the original manufacturer or authorized distributors?

All BF823,215 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 BF823,215 meets industry standards.

7.What is the process for return or replacement of BF823,215?

All BF823,215 units undergo pre-shipment inspection (PSI). If there is an issue with BF823,215, 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 BF823,215 part is unused and in its original packaging.

Return procedure for BF823,215:

1.Submit a request within 90 days.

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

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