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

NXP Semiconductors BC327,116

Name: BC327,116
Brand: NXP Semiconductors
SKU: BC327,116
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC327,116

Manufacturer:: NXP Semiconductors

Category:: Single Bipolar Transistors

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

Datasheet:: BC327,116.pdf

Description:: TRANS PNP 45V 0.5A TO-92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC327,116 from Nexperia is a PNP general-purpose bipolar junction transistor (BJT) in SOT54A (TO-92 wide-pitch) through-hole package, rated for −45 V V_CEO, −500 mA I_C, and 625 mW P_tot. It delivers DC current gain (h_FE) of 100–250 at I_C = −100 mA/V_CE = −1 V and supports switching and linear amplification in low-voltage industrial control circuits.

For engineers reviewing the BC327,116 datasheet, BC327,116 pinout, BC327,116 application, or BC327,116 equivalent, this page provides verified pin configuration, thermal resistance (R_th(j-a) = 200 K/W), saturation voltage (V_CEsat ≤ −700 mV @ I_C = −500 mA/I_B = −50 mA), cutoff leakage (I_CBO ≤ −100 nA), and direct alternative options for legacy through-hole BJT replacement.

Technical Context

The BC327,116 operates as a standard PNP silicon BJT with fixed emitter-base-collector polarity and no integrated biasing or protection circuitry. Its design targets discrete switching and analog amplification where moderate voltage headroom and stable DC gain across temperature are required.

It features a maximum junction temperature of 150 °C, storage temperature range of −65 to +150 °C, and thermal resistance of 200 K/W when mounted on FR4 PCB with single-sided copper. Electrical behavior follows standard Ebers-Moll model assumptions under specified test conditions (pulse width ≤ 300 μs, duty cycle ≤ 0.02).

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum allowable collector-emitter voltage with base open; defines safe operating voltage ceiling in switching applications.
I_C (DC)	−500 mA - Continuous collector current rating; sets upper limit for steady-state load drive capability.
P_tot	625 mW @ T_amb ≤ 25 °C - Total power dissipation limit; determines thermal derating requirements in enclosed or high-ambient environments.
h_FE	100–250 @ I_C = −100 mA/V_CE = −1 V - DC current gain range for BC327-16 variant; enables predictable base drive sizing in amplifier and switch designs.
V_CEsat	≤ −700 mV @ I_C = −500 mA/I_B = −50 mA - Low saturation voltage ensures minimal conduction loss and heat generation in saturated-switch mode.
R_th(j-a)	200 K/W - Junction-to-ambient thermal resistance on standard FR4; informs heatsinking necessity for sustained >300 mA operation.
f_T	80 MHz - Transition frequency at I_C = −10 mA/V_CE = −5 V; indicates usable bandwidth for small-signal amplification up to ~10 MHz.

Pinout & Package

SOT54A (SC-43A wide-pitch TO-92) is a plastic single-ended leaded through-hole package with 3 leads, 5.08 mm lead pitch, and 14.5 mm body length. Designed for manual insertion and wave soldering in industrial PCB assemblies.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current source terminal in PNP operation; connects to higher potential rail in common-emitter configurations.
2	Base	Control input; requires negative current relative to emitter to turn on; typical drive current −50 mA for full saturation.
3	Collector	Current sink terminal; connects to load and lower potential node; handles full switched current path.

Key Features

Feature	Design Value
High-current capability	−500 mA continuous collector current supports driving relays, LEDs, and small solenoids without external buffering.
Low saturation voltage	V_CEsat ≤ −700 mV minimizes power loss and self-heating during on-state operation in switching regulators and logic-level interfaces.
Stable DC gain range	h_FE = 100–250 ensures consistent base resistor selection across production lots for predictable switching thresholds.
Through-hole reliability	SOT54A mechanical robustness and lead coplanarity support long-term vibration resistance in industrial control panels and power supplies.
Wide temperature operation	−65 °C to +150 °C storage and junction temperature range enables deployment in automotive under-hood and outdoor equipment environments.

Applications

Industrial Relay Drivers	Linear Voltage Regulator Pass Element
Use Scenario: Driving 12 V/500 mA electromagnetic relays in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: PNP switch controlling relay coil current path between 12 V rail and ground-return path. Use Value: V_CEsat ≤ −700 mV limits coil power loss to <150 mW, reducing thermal stress on PCB traces and enabling compact layout.	Use Scenario: Acting as series pass transistor in adjustable 5–12 V linear regulators for sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Current-controlled emitter-follower providing low-noise, low-impedance output with adjustable feedback. Use Value: h_FE ≥ 100 ensures stable regulation under 300 mA load with minimal base drive error and ripple rejection >60 dB.
Legacy Microcontroller Interface	Discrete Logic Level Shifting
Use Scenario: Inverting digital signals from 3.3 V microcontrollers to drive 5 V TTL-compatible peripherals. IC Role / Device Role / Timing Role: Common-emitter inverter stage translating logic levels while providing current gain. Use Value: f_T = 80 MHz supports clean edge transitions up to 5 MHz, preserving timing integrity in synchronous bus interfaces.	Use Scenario: Bidirectional level translation between 3.3 V I²C master and 5 V sensor slave in embedded environmental monitoring systems. IC Role / Device Role / Timing Role: PNP-based active pull-up element enabling open-drain compatibility across voltage domains. Use Value: V_EB = −5 V rating allows safe reverse-bias operation during bus arbitration, preventing latch-up in mixed-voltage I²C networks.

Industrial Relay Drivers

Linear Voltage Regulator Pass Element

Use Scenario: Driving 12 V/500 mA electromagnetic relays in programmable logic controller (PLC) output modules.

IC Role / Device Role / Timing Role: PNP switch controlling relay coil current path between 12 V rail and ground-return path.

Use Value: V_CEsat ≤ −700 mV limits coil power loss to <150 mW, reducing thermal stress on PCB traces and enabling compact layout.

Use Scenario: Acting as series pass transistor in adjustable 5–12 V linear regulators for sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Current-controlled emitter-follower providing low-noise, low-impedance output with adjustable feedback.

Use Value: h_FE ≥ 100 ensures stable regulation under 300 mA load with minimal base drive error and ripple rejection >60 dB.

Legacy Microcontroller Interface

Discrete Logic Level Shifting

Use Scenario: Inverting digital signals from 3.3 V microcontrollers to drive 5 V TTL-compatible peripherals.

IC Role / Device Role / Timing Role: Common-emitter inverter stage translating logic levels while providing current gain.

Use Value: f_T = 80 MHz supports clean edge transitions up to 5 MHz, preserving timing integrity in synchronous bus interfaces.

Use Scenario: Bidirectional level translation between 3.3 V I²C master and 5 V sensor slave in embedded environmental monitoring systems.

IC Role / Device Role / Timing Role: PNP-based active pull-up element enabling open-drain compatibility across voltage domains.

Use Value: V_EB = −5 V rating allows safe reverse-bias operation during bus arbitration, preventing latch-up in mixed-voltage I²C networks.

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
BC327-25,116	Higher h_FE (160–400) and identical package/pinout; same V_CEO/I_C/P_tot.	Better suited for low-base-drive applications like battery-powered sensors where base current must be minimized.	Select BC327-25,116 when tighter h_FE tolerance or reduced base drive is critical; otherwise BC327,116 offers broader gain distribution for cost-sensitive designs.
BC327-40,116	Highest h_FE (250–600); otherwise electrically and mechanically identical to BC327,116.	Preferred in precision analog amplifiers requiring high loop gain stability and minimal base current injection error.	Choose BC327-40,116 only if circuit gain sensitivity demands h_FE > 250; avoid in high-temperature environments where gain spread increases.

Compared with BC327-25,116 and BC327-40,116, the BC327,116 provides the broadest h_FE tolerance (100–250), making it optimal for cost-driven switching applications where base drive margin is ample and gain consistency is secondary to manufacturability.

Availability

BC327,116 is available at Aetrix Electronics and suitable for industrial relay drivers, linear regulator pass elements, legacy microcontroller interfaces, and discrete logic level shifting requiring stable component supply and long-lifecycle support.

Supply support for BC327,116 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 leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products division, with focus on automotive, industrial, computing, consumer, and wearable markets.

The BC327,116 belongs to Nexperia's legacy PNP BJT portfolio designed for robust, cost-effective through-hole switching and amplification in industrial control, power management, and interface circuits.

FAQ

What is the package type and pin configuration of BC327,116?

The BC327,116 uses the SOT54A (SC-43A wide-pitch TO-92) through-hole package with emitter on pin 1, base on pin 2, and collector on pin 3. This pinout is standardized across all BC327 variants and differs from SOT23/SOT323 surface-mount versions, which use base-emitter-collector ordering.

What is the maximum collector-emitter voltage rating for BC327,116?

The BC327,116 has a maximum collector-emitter voltage (V_CEO) rating of −45 V with the base open and I_C = 10 mA. This rating defines the absolute upper limit for voltage across the transistor in common-emitter switching configurations and must not be exceeded to prevent avalanche breakdown.

How does the DC current gain (h_FE) of BC327,116 compare to other BC327 variants?

The BC327,116 corresponds to the BC327-16 variant, with h_FE ranging from 100 to 250 at I_C = −100 mA and V_CE = −1 V. This is lower than BC327-25 (160–400) and BC327-40 (250–600), making BC327,116 suitable for applications where moderate gain and wider tolerance are acceptable.

What is the thermal resistance and power dissipation capability of BC327,116?

The BC327,116 has a junction-to-ambient thermal resistance (R_th(j-a)) of 200 K/W and a total power dissipation (P_tot) of 625 mW at T_amb ≤ 25 °C. Derating is required above 25 °C - approximately 5 mW/°C - to maintain junction temperature below 150 °C in standard FR4 PCB mounting.

Is BC327,116 suitable for linear amplification applications?

Yes, the BC327,116 supports linear amplification with verified characteristics including f_T = 80 MHz, V_BE ≈ −1.2 V at I_C = −500 mA, and low C_c = 5 pF. Its h_FE stability and low distortion at I_C < 100 mA make it appropriate for audio preamplifier stages and sensor signal conditioning where discrete gain blocks are preferred.

BC327,116 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):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 50mA, 500mA

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

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

Power - Max:: 625 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

BC327,116 FAQ

1.How can I place an order for BC327,116 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC327,116 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 BC327,116 reliable?

The price and inventory of BC327,116 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC327,116 is usually 5 days.

3.What payment methods are accepted for BC327,116?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC327,116 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC327,116?

BC327,116 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC327,116 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 BC327,116?

For technical support, including BC327,116 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC327,116 requirements.

6.How does Aetrix verify that BC327,116 is sourced from the original manufacturer or authorized distributors?

All BC327,116 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 BC327,116 meets industry standards.

7.What is the process for return or replacement of BC327,116?

All BC327,116 units undergo pre-shipment inspection (PSI). If there is an issue with BC327,116, 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 BC327,116 part is unused and in its original packaging.

Return procedure for BC327,116:

1.Submit a request within 90 days.

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

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