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

STMicroelectronics TIP147T

Name: TIP147T
Brand: STMicroelectronics
SKU: TIP147T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TIP147T

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: TIP147T.pdf

Description:: TRANS PNP DARL 100V 10A TO-220

Quantity:: RFQ Add To RFQ list

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Inventory:1,114

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Product details

Overview

TIP147T from STMicroelectronics is a PNP complementary power Darlington transistor in TO-220 package, featuring monolithic Darlington configuration with integrated antiparallel collector-emitter diode, 100 V V_CEO, 10 A I_C, and 90 W P_TOT at T_case = 25 °C, used in high-current linear regulators and industrial motor control stages.

For engineers reviewing the TIP147T datasheet, TIP147T pinout, TIP147T application, or TIP147T equivalent, key selection criteria include guaranteed h_FE ≥ 500 at I_C = 10 A, V_CE(sat) ≤ 3 V under same conditions, thermal resistance R_thJC ≤ 1.4 °C/W, and built-in clamping diode for inductive load switching.

Technical Context

The TIP147T implements a planar "base island" structure enabling high DC current gain (h_FE = 500–1000) and low saturation voltage (V_CE(sat) = 2–3 V) at 10 A collector current. Its monolithic Darlington topology integrates driver and output transistors on one die with internal base-emitter resistors (R1 = 8 kΩ, R2 = 100 Ω).

It includes an integrated antiparallel collector-emitter diode for flyback energy recirculation, supports pulsed peak current up to 20 A, and operates with junction temperature up to 150 °C - making it suitable for non-isolated high-power linear amplification and relay/valve driver circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - maximum safe collector-emitter blocking voltage with base open, defines usable voltage headroom in linear regulator or switch-mode output stage
I_C	10 A continuous - rated DC collector current determines maximum sustained load drive capability without forced cooling
h_FE	500 min @ I_C = 10 A - high current gain reduces required base drive current, easing driver circuit design
V_CE(sat)	3 V max @ I_C = 10 A, I_B = 40 mA - low saturation voltage minimizes conduction loss and heat generation in switching applications
R_thJC	1.4 °C/W max - thermal resistance from junction to case enables accurate heatsink sizing for 90 W dissipation at T_case = 25 °C
Integrated Diode	Antiparallel C-E - provides intrinsic flyback path for inductive loads, eliminating need for external freewheeling diode

Pinout & Package

TO-220 package with metal tab (pin 2) electrically connected to collector; plastic body with three leads arranged left-to-right as emitter (1), base (2), collector (3) when viewed with tab facing outward and leads down.

Pin/Terminal	Circuit Role	Design Meaning
1 (Left lead)	Emitter	Main current exit terminal; tied to system ground or negative rail in PNP high-side switch configurations
2 (Center lead / Tab)	Collector	Main current entry terminal; metal tab is electrically connected to collector and serves as primary thermal interface to heatsink
3 (Right lead)	Base	Control input; driven with negative current relative to emitter to turn on; internal R1/R2 bias network simplifies drive requirements

Key Features

Feature	Design Value
Monolithic Darlington	Single-die integration of driver + output transistor ensures matched thermal behavior and eliminates interconnect parasitics
Integrated antiparallel diode	Eliminates discrete freewheeling diode in relay, solenoid, and DC motor drive circuits, reducing BOM count and layout area
Planar "base island" layout	Enables stable h_FE and low V_CE(sat) across temperature and production lot, critical for precision linear amplifiers
Internal base-emitter resistors	R1 = 8 kΩ, R2 = 100 Ω provide self-biasing and improve turn-off speed by actively discharging base charge

Applications

High-Current Linear Regulator

Industrial Relay Driver

Use Scenario: Adjustable 0–30 V, 5–10 A bench power supply output stage with pass transistor configuration.

IC Role / Device Role / Timing Role: PNP Darlington pass element operating in linear mode, dissipating up to 90 W with heatsink.

Use Value: High h_FE reduces series base resistor power loss; low V_CE(sat) extends regulation range near ground rail.

Use Scenario: Driving 24 V DC industrial relays (100–500 mA coil) from microcontroller GPIO with opto-isolation.

IC Role / Device Role / Timing Role: High-gain PNP switch sinking relay coil current to ground via emitter, with collector tied to +24 V.

Use Value: Integrated antiparallel diode suppresses inductive kickback, preventing GPIO damage and EMI spikes.

DC Motor Direction Control

High-Power Audio Output Stage

Use Scenario: Half-bridge H-bridge leg in 24 V brushed DC motor controller (10 A stall current).

IC Role / Device Role / Timing Role: Upper-leg PNP Darlington providing high-side sourcing current path during forward drive phase.

Use Value: 100 V V_CEO withstands back-EMF transients; 20 A I_CM supports brief stall current surges.

Use Scenario: Complementary output pair (with TIP142T) in Class AB audio amplifier delivering 50 W into 4 Ω.

IC Role / Device Role / Timing Role: PNP output transistor handling negative half-cycle signal swing with minimal crossover distortion.

Use Value: Matched h_FE and V_CE(sat) with NPN counterpart ensures symmetrical gain and thermal tracking.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP Darlington transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD127G	TO-263 surface-mount package; lower P_TOT = 50 W; h_FE = 1000 min @ I_C = 2 A only	Not suitable for >5 A continuous conduction; requires PCB copper area for thermal management instead of bolt-on heatsink	Select when space-constrained PCB layout prioritizes SMT over through-hole and peak current < 5 A
BDW53C	TO-220 package; no integrated diode; V_CEO = 100 V but h_FE = 750 min @ I_C = 3 A only	Requires external flyback diode; lower guaranteed gain at full 10 A load increases base drive complexity	Select when cost sensitivity outweighs diode integration benefit and thermal margin allows higher V_CE(sat)

Compared with MJD127G and BDW53C, the TIP147T uniquely delivers 10 A continuous rating with integrated diode and verified h_FE ≥ 500 at full load - enabling simpler, more robust high-power PNP switching in industrial equipment where reliability and thermal headroom are critical.

Availability

TIP147T is available at Aetrix Electronics and suitable for industrial motor drives, high-current linear power supplies, and DC solenoid control systems requiring stable component supply across multi-year production cycles.

Supply support for TIP147T 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

The TIP147T belongs to ST's legacy power bipolar transistor family, engineered specifically for ruggedized industrial linear and switching applications where high current gain, low saturation voltage, and integrated protection features are essential.

FAQ

Is the TIP147T pin-compatible with the TIP142T?

No - the TIP147T is PNP and the TIP142T is NPN, so their pinouts are complementary: TIP147T has emitter-base-collector (E-B-C) left-to-right, while TIP142T has collector-base-emitter (C-B-E). They are intended for use as matched pairs in push-pull or H-bridge topologies, not direct replacements.

Does the integrated diode connect between collector and emitter or base and emitter?

The integrated antiparallel diode connects directly between collector and emitter terminals, with cathode at collector and anode at emitter - enabling bidirectional current flow during inductive turn-off, as confirmed in Figure 1 and Table 1 of ST's Doc ID 4135 Rev 5.

What is the maximum safe operating area (SOA) limitation at 100 V V_CE?

At V_CE = 100 V, the SOA limits continuous I_C to ≤ 0.9 A due to second breakdown constraints. This is derived from the SOA graph in ST's datasheet, where the DC boundary intersects 100 V at ~0.9 A - well below the 10 A rating specified at low V_CE.

Can the TIP147T be used without a heatsink?

No - with P_TOT = 90 W and R_thJC = 1.4 °C/W, even minimal power dissipation (e.g., 5 W) raises junction temperature by >7 °C above case. For any sustained I_C > 1 A or V_CE > 5 V, a properly mounted heatsink is mandatory to maintain T_J ≤ 150 °C.

TIP147T Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

Transistor Type:: PNP - Darlington

Current - Collector (Ic) (Max):: 10 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 3V @ 40mA, 10A

Current - Collector Cutoff (Max):: 2mA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 1000 @ 5A, 4V

Power - Max:: 90 W

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

TIP147T FAQ

1.How can I place an order for TIP147T through Aetrix?

Please submit a Request for Quotation (RFQ) for TIP147T 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 TIP147T reliable?

The price and inventory of TIP147T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP147T is usually 5 days.

3.What payment methods are accepted for TIP147T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP147T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TIP147T?

TIP147T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TIP147T 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 TIP147T?

For technical support, including TIP147T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP147T requirements.

6.How does Aetrix verify that TIP147T is sourced from the original manufacturer or authorized distributors?

All TIP147T 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 TIP147T meets industry standards.

7.What is the process for return or replacement of TIP147T?

All TIP147T units undergo pre-shipment inspection (PSI). If there is an issue with TIP147T, 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 TIP147T part is unused and in its original packaging.

Return procedure for TIP147T:

1.Submit a request within 90 days.

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

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