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

NXP Semiconductors BC640,116

Name: BC640,116
Brand: NXP Semiconductors
SKU: BC640,116
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC640,116

Manufacturer:: NXP Semiconductors

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: BC640,116.pdf

Description:: TRANS PNP 80V 1A TO-92-3

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Product details

Overview

BC640,116 from Nexperia (formerly Philips Semiconductors) is a PNP medium-power bipolar junction transistor in TO-92 (SOT54) package, rated for −80 V V_CEO, −100 V V_CBO, −1 A continuous collector current, and 0.83 W power dissipation at T_amb ≤ 25 °C. It serves as a general-purpose switching and linear amplification device in audio output stages and DC power control circuits.

For engineers reviewing the BC640,116 datasheet, BC640,116 pinout, BC640,116 application, or BC640,116 equivalent, key selection criteria include its PNP polarity, −80 V collector-emitter breakdown rating, 63–250 h_FE range at I_C = −150 mA, V_CE(sat) ≤ −0.5 V at I_C = −500 mA/I_B = −50 mA, and thermal resistance of 150 K/W on FR4 PCB - all critical for reliable medium-power analog and switching designs.

Technical Context

The BC640,116 operates as a silicon PNP BJT with fixed emitter-base and collector-base junctions optimized for medium-current linear amplification and saturated switching. Its DC current gain (h_FE) is specified from 63 to 250 depending on collector current (−5 mA to −500 mA) and bias conditions (V_CE = −2 V), supporting stable gain across audio-frequency signal paths.

It features low saturation voltage (≤ −0.5 V), high breakdown ratings (−100 V V_CBO, −80 V V_CEO), and cut-off leakage currents below −100 nA at 25 °C - enabling robust performance in Class-B audio drivers and relay/LED driver interfaces where leakage and saturation loss directly impact efficiency and thermal margin.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V: Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit in PNP switch or amplifier stage.
V_CBO	−100 V: Maximum collector-base voltage with emitter open; determines reverse-bias safety margin in high-voltage bias networks.
I_C (DC)	−1 A: Continuous collector current rating; sets maximum steady-state load current capability without derating.
h_FE	63–250: DC current gain range at V_CE = −2 V; enables predictable base drive sizing across operating points.
V_CE(sat)	≤ −0.5 V at I_C = −500 mA/I_B = −50 mA: Low saturation voltage minimizes conduction loss and heat generation in switching applications.
R_th(j-a)	150 K/W: Junction-to-ambient thermal resistance on FR4 PCB; determines temperature rise per watt dissipated in standard layout.
f_T	100 MHz: Transition frequency at V_CE = −5 V/I_C = −50 mA; supports stable operation up to mid-audio frequencies with adequate gain margin.

Pinout & Package

BC640,116 is housed in a plastic single-ended leaded (through-hole) TO-92 package, also designated SOT54 or SC-43A, with 3 leads and standardized mechanical dimensions per IEC/JEDEC outlines.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input terminal; requires negative bias relative to emitter to turn on PNP device.
2	Collector	Main current-sinking terminal; connected to most-negative supply node in PNP common-emitter configuration.
3	Emitter	Current-source terminal; typically tied to higher-potential rail (e.g., V_CC) in PNP switching or amplification.

Key Features

Feature	Design Value
High current capability	Rated for −1 A DC collector current - supports driving moderate loads such as small relays, LEDs, or audio output transducers without external heatsinking.
High voltage tolerance	−100 V V_CBO and −80 V V_CEO - enables use in 48 V industrial control rails and legacy audio supplies where transient spikes exceed 60 V.
Low saturation voltage	V_CE(sat) ≤ −0.5 V at I_C = −500 mA - reduces power loss and self-heating during on-state operation in switching regulators or logic-level translators.
Stable DC current gain	h_FE = 63–250 over I_C = −5 mA to −500 mA - ensures consistent base drive requirements across varying load conditions in linear amplifiers.
Thermal reliability	R_th(j-a) = 150 K/W on FR4 - allows direct mounting on standard PCBs with predictable junction temperature rise under 0.5 W dissipation.

Applications

Audio Amplifier Output Stage	DC Load Switching
Use Scenario: Driving 8 Ω speaker loads in Class-B or Class-AB complementary output pairs in portable audio equipment. IC Role / Device Role / Timing Role: PNP output transistor providing current sink path during negative half-cycle of audio waveform. Use Value: −80 V V_CEO and 63–250 h_FE ensure headroom and linearity at ±12 V supply rails; low V_CE(sat) minimizes crossover distortion and thermal drift.	Use Scenario: Switching 24 V DC solenoids or indicator LEDs in industrial control panels using microcontroller GPIO. IC Role / Device Role / Timing Role: Medium-power PNP switch controlled by active-low logic signal referenced to system ground. Use Value: −1 A I_C rating handles peak inrush currents; −100 V V_CBO withstands inductive kickback without snubbing.
Complementary Pair Matching	Linear Voltage Regulator Pass Element
Use Scenario: Paired with NPN BC639 in push-pull configurations requiring matched h_FE and f_T for balanced gain and bandwidth. IC Role / Device Role / Timing Role: PNP component in complementary transistor pair ensuring symmetrical sourcing/sinking capability. Use Value: h_FE ratio ≤ 1.6 between BC640,116 and BC639 guarantees <10% gain mismatch - critical for low-distortion audio and precision current mirrors.	Use Scenario: Series pass element in adjustable linear regulators delivering up to 500 mA at 5–12 V output. IC Role / Device Role / Timing Role: PNP pass transistor regulating output voltage via base-emitter feedback loop. Use Value: 0.83 W P_tot and 150 K/W R_th(j-a) allow safe operation at 2 W dissipation with modest heatsinking; low V_BE (≤ −1 V) simplifies error amplifier design.

Audio Amplifier Output Stage

DC Load Switching

Use Scenario: Driving 8 Ω speaker loads in Class-B or Class-AB complementary output pairs in portable audio equipment.

IC Role / Device Role / Timing Role: PNP output transistor providing current sink path during negative half-cycle of audio waveform.

Use Value: −80 V V_CEO and 63–250 h_FE ensure headroom and linearity at ±12 V supply rails; low V_CE(sat) minimizes crossover distortion and thermal drift.

Use Scenario: Switching 24 V DC solenoids or indicator LEDs in industrial control panels using microcontroller GPIO.

IC Role / Device Role / Timing Role: Medium-power PNP switch controlled by active-low logic signal referenced to system ground.

Use Value: −1 A I_C rating handles peak inrush currents; −100 V V_CBO withstands inductive kickback without snubbing.

Complementary Pair Matching

Linear Voltage Regulator Pass Element

Use Scenario: Paired with NPN BC639 in push-pull configurations requiring matched h_FE and f_T for balanced gain and bandwidth.

IC Role / Device Role / Timing Role: PNP component in complementary transistor pair ensuring symmetrical sourcing/sinking capability.

Use Value: h_FE ratio ≤ 1.6 between BC640,116 and BC639 guarantees <10% gain mismatch - critical for low-distortion audio and precision current mirrors.

Use Scenario: Series pass element in adjustable linear regulators delivering up to 500 mA at 5–12 V output.

IC Role / Device Role / Timing Role: PNP pass transistor regulating output voltage via base-emitter feedback loop.

Use Value: 0.83 W P_tot and 150 K/W R_th(j-a) allow safe operation at 2 W dissipation with modest heatsinking; low V_BE (≤ −1 V) simplifies error amplifier design.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium-power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC640,132	Same electrical specs and TO-92 package; differs only in tape-and-reel packaging format (132 = 2000 pcs/reel vs. 116 = bulk).	No functional difference; intended for automated SMT assembly lines rather than manual or through-hole prototyping.	Select BC640,132 for high-volume pick-and-place production; BC640,116 remains optimal for hand-soldered boards and low-volume builds.
MPSA92	Higher V_CEO (−300 V), lower h_FE (25–100), same TO-92 package; not pin-compatible due to different pinout (Emitter-Base-Collector vs. Base-Collector-Emitter).	Suitable for high-voltage switching (e.g., flyback snubbers), but incompatible in existing BC640,116 layouts without PCB revision.	Choose MPSA92 only when >−100 V breakdown is required and board redesign is acceptable; not a drop-in replacement.

Compared with BC640,116, BC640,132 offers identical electrical behavior in a machine-ready format, while MPSA92 trades gain and pin compatibility for extreme voltage capability - making BC640,116 the preferred choice for cost-sensitive, medium-voltage audio and control applications where layout reuse and gain consistency are essential.

Availability

BC640,116 is available at Aetrix Electronics and suitable for audio amplifier output stages, DC load switching, complementary pair matching, and linear voltage regulator pass elements requiring stable component supply and long-term obsolescence management.

Supply support for BC640,116 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 formed from the former Standard Products division of Philips, specializing in high-volume, high-reliability discrete and logic devices with automotive-grade qualification.

The BC640,116 belongs to Nexperia's legacy PNP medium-power transistor family designed for cost-effective, robust analog and switching functions in consumer, industrial, and automotive electronics where reliability and manufacturability are prioritized.

FAQ

What is the maximum collector-emitter voltage rating for BC640,116?

The BC640,116 has a maximum collector-emitter voltage (V_CEO) rating of −80 V under open-base conditions. This value is defined per IEC 60134 Absolute Maximum Ratings and must not be exceeded to prevent permanent device damage. Operation near this limit requires verification of transient voltage margins and thermal derating at elevated ambient temperatures.

Is BC640,116 pin-compatible with BC639?

No, BC640,116 is not pin-compatible with BC639. While both are TO-92 packaged transistors, BC640,116 is PNP with pinout Base–Collector–Emitter (1–2–3), whereas BC639 is NPN with Emitter–Base–Collector (1–2–3). Swapping them without PCB modification will result in circuit failure or damage due to reversed polarity and incorrect terminal connections.

What is the typical DC current gain (h_FE) of BC640,116 at 150 mA collector current?

At V_CE = −2 V and I_C = −150 mA, the BC640,116 exhibits a DC current gain (h_FE) ranging from 63 to 250. This wide range reflects process variation and ensures design margin; actual measured values fall within this band, supporting conservative base drive calculations for reliable saturation in switching applications.

Can BC640,116 be used in surface-mount designs?

No, BC640,116 is a through-hole device in TO-92 (SOT54) package and is not suitable for standard surface-mount assembly. It requires plated-through holes and wave or hand soldering. For SMT equivalents, consider Nexperia's PNP SOT-23 devices like PBSS4041T, which offer comparable V_CEO and I_C ratings in a compatible footprint.

What is the thermal resistance from junction to ambient for BC640,116?

The BC640,116 has a thermal resistance from junction to ambient (R_th(j-a)) of 150 K/W when mounted on a standard FR4 printed-circuit board, per manufacturer test conditions. This value assumes no added heatsinking and defines the temperature rise above ambient per watt dissipated - critical for calculating safe operating area in linear applications.

BC640,116 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

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:: 830 mW

Frequency - Transition:: 145MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

BC640,116 FAQ

1.How can I place an order for BC640,116 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC640,116 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 BC640,116 reliable?

The price and inventory of BC640,116 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC640,116 is usually 5 days.

3.What payment methods are accepted for BC640,116?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC640,116 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC640,116?

BC640,116 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC640,116 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 BC640,116?

For technical support, including BC640,116 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC640,116 requirements.

6.How does Aetrix verify that BC640,116 is sourced from the original manufacturer or authorized distributors?

All BC640,116 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 BC640,116 meets industry standards.

7.What is the process for return or replacement of BC640,116?

All BC640,116 units undergo pre-shipment inspection (PSI). If there is an issue with BC640,116, 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 BC640,116 part is unused and in its original packaging.

Return procedure for BC640,116:

1.Submit a request within 90 days.

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

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