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

onsemi BD14016STU

Name: BD14016STU
Brand: onsemi
SKU: BD14016STU
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BD14016STU

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-225AA, TO-126-3

Datasheet:: BD14016STU.pdf

Description:: TRANS PNP 80V 1.5A TO-126-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BD14016STU from Fairchild Semiconductor is a PNP epitaxial silicon transistor in TO-126 package, rated for -80 V V_CEO, -1.5 A continuous collector current, and 12.5 W case power dissipation at T_C=25°C, used in medium-power linear amplification and switching applications such as audio output stages and relay drivers.

For engineers reviewing the BD14016STU datasheet, pinout, applications, or equivalent options, key selection criteria include its V_CEO = -80 V rating, h_FE = 100–250 (Class 16), V_CE(sat) = -0.5 V at I_C = -500 mA/I_B = -50 mA, and TO-126 thermal performance with 12.5 W P_C (T_C).

Technical Context

The BD14016STU operates as a medium-power PNP bipolar junction transistor optimized for linear and switching use with fixed DC biasing. Its h_FE classification (Class 16) guarantees minimum h_FE = 100 at I_C = -150 mA, V_CE = -2 V, and maximum h_FE = 250 under same conditions.

It features V_CEO(sus) = -80 V at I_C = -30 mA, I_B = 0, confirming rugged sustaining capability; V_BE(on) = -1.0 V at I_C = -0.5 A ensures predictable base drive requirements in saturated switch designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-80 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration
I_C (DC)	-1.5 A - Continuous collector current limit defining steady-state conduction capacity
P_C (T_C=25°C)	12.5 W - Thermal power limit at case temperature of 25°C, requiring heatsink for full-load operation
h_FE Class	16 - Guaranteed DC current gain range of 100–250 at I_C = -150 mA, V_CE = -2 V
V_CE(sat)	-0.5 V - Collector-emitter saturation voltage at I_C = -500 mA, I_B = -50 mA, determining on-state power loss
T_J	150 °C - Maximum allowable junction temperature, setting thermal design margin for reliability

Pinout & Package

BD14016STU uses the TO-126 plastic power package with integral heat slug, designed for through-hole mounting and direct heatsink attachment via the collector-connected tab. Dimensions: 16.10 × 13.06 × 4.2 mm (L × W × H), with 3.20 mm mounting hole diameter.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Emitter terminal	Current exit path for PNP device; connected to most positive rail in typical common-emitter switch
2 (Collector)	Collector terminal	Main current sink; electrically tied to metal tab for thermal conduction and electrical grounding in many layouts
3 (Base)	Base control terminal	Current-controlled input governing transistor conduction; requires negative bias relative to emitter for turn-on

Key Features

Feature	Design Value
High V_CEO rating	-80 V enables use in higher-voltage DC supply rails up to ±80 V systems without derating
Class 16 h_FE	Guaranteed 100–250 gain supports stable biasing across production lots in amplifier and driver circuits
Low V_CE(sat)	-0.5 V at rated I_C/I_B reduces conduction loss and self-heating in switching applications
TO-126 thermal design	12.5 W P_C at T_C=25°C allows >1 W dissipation with modest heatsinking in industrial ambient conditions

Applications

Audio Power Amplifier Output Stage	DC Motor Directional Control
Use Scenario: Driving low-impedance speakers (4–8 Ω) in Class-B or AB push-pull output stages. IC Role / Device Role / Timing Role: PNP complement to NPN BD139 in quasi-complementary output pair, handling negative half-cycle current. Use Value: V_CEO = -80 V and h_FE ≥100 ensure headroom and linearity for 20–20 kHz audio signals up to 10 W output.	Use Scenario: Controlling bidirectional rotation of brushed DC motors in industrial actuators and robotics. IC Role / Device Role / Timing Role: High-side PNP switch in H-bridge leg, sinking current during reverse polarity phase. Use Value: -1.5 A I_C and -0.5 V V_CE(sat) enable efficient 12 V/1 A motor control with <0.5 W conduction loss per switch.
Relay and Solenoid Driver	Linear Voltage Regulator Pass Element
Use Scenario: Switching 24 V/500 mA industrial relays and solenoids in PLC I/O modules. IC Role / Device Role / Timing Role: Saturated PNP switch interfacing microcontroller GPIO to inductive load, with flyback diode protection. Use Value: Robust -80 V V_CEO withstands inductive kickback spikes exceeding 60 V, ensuring long-term reliability.	Use Scenario: Series pass transistor in adjustable linear regulators delivering up to 1.2 A at 5–15 V output. IC Role / Device Role / Timing Role: Current-amplifying element controlled by error amplifier, dissipating excess input-output differential power. Use Value: 12.5 W P_C (T_C) supports 10 V dropout at 1 A with adequate heatsinking, maintaining regulation under full load.

Audio Power Amplifier Output Stage

DC Motor Directional Control

Use Scenario: Driving low-impedance speakers (4–8 Ω) in Class-B or AB push-pull output stages.

IC Role / Device Role / Timing Role: PNP complement to NPN BD139 in quasi-complementary output pair, handling negative half-cycle current.

Use Value: V_CEO = -80 V and h_FE ≥100 ensure headroom and linearity for 20–20 kHz audio signals up to 10 W output.

Use Scenario: Controlling bidirectional rotation of brushed DC motors in industrial actuators and robotics.

IC Role / Device Role / Timing Role: High-side PNP switch in H-bridge leg, sinking current during reverse polarity phase.

Use Value: -1.5 A I_C and -0.5 V V_CE(sat) enable efficient 12 V/1 A motor control with <0.5 W conduction loss per switch.

Relay and Solenoid Driver

Linear Voltage Regulator Pass Element

Use Scenario: Switching 24 V/500 mA industrial relays and solenoids in PLC I/O modules.

IC Role / Device Role / Timing Role: Saturated PNP switch interfacing microcontroller GPIO to inductive load, with flyback diode protection.

Use Value: Robust -80 V V_CEO withstands inductive kickback spikes exceeding 60 V, ensuring long-term reliability.

Use Scenario: Series pass transistor in adjustable linear regulators delivering up to 1.2 A at 5–15 V output.

IC Role / Device Role / Timing Role: Current-amplifying element controlled by error amplifier, dissipating excess input-output differential power.

Use Value: 12.5 W P_C (T_C) supports 10 V dropout at 1 A with adequate heatsinking, maintaining regulation under full load.

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
BD140G	Same V_CEO, V_CEO(sus), and h_FE Class 16; RoHS-compliant variant with green molding compound	No functional difference; identical pinout and thermal profile; preferred for new designs requiring lead-free compliance	Select BD140G when RoHS/REACH compliance is mandatory and legacy BD14016STU sourcing is constrained
MJD127	Higher V_CEO (-100 V), lower h_FE (30–120), TO-220 package with larger thermal mass (P_C = 30 W at T_C=25°C)	Requires PCB layout change due to TO-220 footprint; better suited for higher-voltage, higher-power switching where BD14016STU approaches thermal limits	Choose MJD127 only when system requires >80 V blocking or >12.5 W dissipation with minimal heatsink area

Compared with BD140G, BD14016STU offers identical electrical behavior but lacks RoHS certification; versus MJD127, it provides smaller footprint and lower cost for ≤80 V, ≤12.5 W applications without needing TO-220-level thermal headroom.

Availability

BD14016STU is available at Aetrix Electronics and suitable for audio amplifiers, relay drivers, DC motor controllers, and linear regulator designs requiring stable component supply with consistent parametric performance across production batches.

Supply support for BD14016STU 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

Fairchild Semiconductor was a U.S.-based semiconductor manufacturer specializing in power discrete devices, analog ICs, and interface solutions before its acquisition by ON Semiconductor in 2016.

The BD14016STU belongs to Fairchild's BD136/138/140 family of medium-power PNP transistors, designed specifically for cost-sensitive linear and switching applications in consumer, industrial, and automotive auxiliary systems.

FAQ

What is the maximum continuous collector current rating for BD14016STU?

The BD14016STU has a maximum continuous collector current (I_C) rating of -1.5 A at T_C = 25°C. This value assumes proper heatsinking; derating is required above 25°C case temperature per the 0.1 W/°C power derating curve shown in the datasheet. Operation beyond this limit risks thermal runaway and permanent damage to BD14016STU.

Is BD14016STU pin-compatible with BD139?

Yes, BD14016STU is the PNP complement to the NPN BD139 and shares identical TO-126 package dimensions and pinout (Emitter-Collector-Base). However, BD14016STU is not a drop-in replacement for BD139 due to opposite polarity; it must be used in complementary pairs or inverted circuit configurations. Always verify biasing and signal polarity when substituting BD14016STU for BD139.

What does the '16' in BD14016STU signify?

The '16' in BD14016STU denotes its h_FE classification group, specifying a guaranteed DC current gain range of 100–250 at V_CE = -2 V and I_C = -150 mA. This binning ensures consistent amplification performance across units, critical for bias-stable amplifier and precision switching designs using BD14016STU.

Can BD14016STU be used in switching power supplies?

BD14016STU is not recommended for high-frequency switching power supplies due to its relatively slow switching speed (no specified t_f/t_r in the datasheet) and lack of optimized SOA for repetitive avalanche. It is suitable for low-frequency (<10 kHz) PWM motor control or relay driving where BD14016STU's -0.5 V V_CE(sat) and thermal robustness provide reliable operation.

What is the safe operating area (SOA) limitation for BD14016STU at 100°C case temperature?

At T_C = 100°C, BD14016STU's maximum continuous collector power dissipation is reduced to approximately 5 W, based on the linear derating slope of 0.1 W/°C from 12.5 W at 25°C. The SOA curve in the datasheet shows that simultaneous high V_CE and high I_C must be avoided-e.g., at V_CE = -40 V, I_C must remain below -125 mA to stay within SOA limits for BD14016STU.

BD14016STU Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-225AA, TO-126-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1.5 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:: 100 @ 150mA, 2V

Power - Max:: 1.25 W

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-126-3

BD14016STU FAQ

1.How can I place an order for BD14016STU through Aetrix?

Please submit a Request for Quotation (RFQ) for BD14016STU 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 BD14016STU reliable?

The price and inventory of BD14016STU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BD14016STU is usually 5 days.

3.What payment methods are accepted for BD14016STU?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BD14016STU transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BD14016STU?

BD14016STU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BD14016STU 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 BD14016STU?

For technical support, including BD14016STU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BD14016STU requirements.

6.How does Aetrix verify that BD14016STU is sourced from the original manufacturer or authorized distributors?

All BD14016STU 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 BD14016STU meets industry standards.

7.What is the process for return or replacement of BD14016STU?

All BD14016STU units undergo pre-shipment inspection (PSI). If there is an issue with BD14016STU, 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 BD14016STU part is unused and in its original packaging.

Return procedure for BD14016STU:

1.Submit a request within 90 days.

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

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