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

STMicroelectronics TIP107

Name: TIP107
Brand: STMicroelectronics
SKU: TIP107
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TIP107

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: TIP107.pdf

Description:: TRANS PNP DARL 100V 8A TO-220

Quantity:: RFQ Add To RFQ list

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Inventory:1,287

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Product details

Overview

TIP107 from STMicroelectronics is a complementary PNP silicon power Darlington transistor in TO-220 package, designed for high-current linear and switching applications. It features 100 V V_CEO, 8 A continuous collector current, integrated antiparallel collector-emitter diode, 2 W total dissipation at T_amb ≤ 25 °C, and h_FE ≥ 1000 at I_C = 3 A - used in DC motor drivers and audio power amplifiers.

For engineers reviewing the TIP107 datasheet, TIP107 pinout, TIP107 application, or TIP107 equivalent, key selection criteria include guaranteed V_CEO(sus) = 100 V, integrated commutation diode (V_F = 2.8 V @ −10 A), safe operating area compliance, thermal resistance (R_thj-case = 1.56 °C/W), and complementary pairing with TIP102 for push-pull output stages.

Technical Context

The TIP107 operates as a monolithic PNP Darlington pair with built-in base-emitter resistors (R1 ≈ 5 kΩ, R2 ≈ 150 Ω) enabling direct TTL/CMOS drive without external biasing. Its integrated antiparallel diode provides inherent reverse-current path during inductive load switching.

It supports both linear-mode operation (e.g., Class AB audio output stage) and saturated switching (e.g., DC-AC inverters), with guaranteed V_CE(sat) ≤ 2.5 V at I_C = 8 A / I_B = 80 mA and V_BE = 2.8 V at I_C = 8 A, ensuring predictable drive requirements and thermal behavior under full-load conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - maximum sustainable collector-emitter voltage with base open; defines safe blocking capability in switching applications
I_C	8 A continuous - usable DC current rating at T_case ≤ 25 °C; sets minimum heatsink sizing requirement
h_FE	1000–20000 - high DC current gain enables low-base-drive-current control, reducing driver-stage complexity
V_F (diode)	2.8 V @ −10 A - forward voltage of integrated antiparallel diode; determines clamping loss and recovery energy in inductive switching
R_thj-case	1.56 °C/W - junction-to-case thermal resistance; directly used to calculate case temperature rise under given power dissipation
V_CE(sat)	2.5 V @ I_C = 8 A, I_B = 80 mA - saturation voltage defining conduction loss and heat generation in switch-mode use

Pinout & Package

Package: TO-220 (3-pin, straight lead, insulated tab). Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. Tab is electrically connected to Collector.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Emitter)	Current exit terminal for PNP device	Connected to positive rail in high-side switch configuration; requires isolation if mounting to heatsink
Pin 2 (Base)	Control input node	Internally biased via R1/R2 network; accepts ~80 mA drive for full saturation at 8 A load
Pin 3 (Collector)	Main current input terminal	Electrically tied to metal tab; must be insulated from heatsink unless common-collector topology is intended

Key Features

Feature	Design Value
Integrated antiparallel diode	Enables self-commutated inductive load switching without external flyback diode, reducing BOM count and PCB area
Monolithic Darlington structure	Delivers h_FE ≥ 1000 with single-package integration, eliminating discrete pair matching and layout sensitivity
Internal base-emitter resistors	R1 ≈ 5 kΩ and R2 ≈ 150 Ω provide turn-off assurance and reduce external component dependency for logic-level drive
TO-220 mechanical standardization	Ensures compatibility with widely available heatsinks, mounting hardware, and automated assembly tooling

Applications

Audio Power Amplifier

DC Motor Driver

Use Scenario: Output stage in 20–50 W Class AB audio amplifier driving 4–8 Ω speakers.

IC Role / Device Role / Timing Role: PNP Darlington emitter-follower delivering high peak current and low distortion into reactive loads.

Use Value: Integrated diode absorbs back-EMF from speaker voice coil; high h_FE minimizes driver-stage loading and improves thermal stability.

Use Scenario: High-side switch in H-bridge or single-direction DC motor controller (12–48 V, ≤8 A).

IC Role / Device Role / Timing Role: PNP power switch controlling motor supply rail; paired with NPN TIP102 for complementary drive.

Use Value: Guaranteed V_CEO(sus) = 100 V withstands inductive kickback; low V_CE(sat) reduces conduction loss and heatsink size.

DC-AC Inverter

Industrial Linear Regulator

Use Scenario: Switching element in low-frequency (50–400 Hz) square-wave inverter for AC load control.

IC Role / Device Role / Timing Role: Saturated PNP switch toggling DC bus to transformer primary winding.

Use Value: Integrated diode provides natural freewheeling path during off-state, preventing voltage overshoot and MOSFET-like snubber requirements.

Use Scenario: Pass transistor in adjustable linear power supply delivering up to 5 A at 5–30 V output.

IC Role / Device Role / Timing Role: Series pass element regulating output voltage under variable load and line conditions.

Use Value: High SOA allows stable operation at high V_CE/I_C combinations; R_thj-case = 1.56 °C/W supports predictable thermal design with standard heatsinks.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJ11015	Higher V_CEO = 120 V, higher P_tot = 200 W, TO-3 package	Requires larger heatsink and mechanical mounting; suited for higher-power industrial supplies	Select when >100 V blocking or >8 A continuous current is required; not drop-in due to package and pinout mismatch
BDW53C	Lower V_CEO = 60 V, no integrated diode, h_FE = 20–120, TO-220	Lacks internal diode; requires external flyback diode in inductive switching; lower gain demands stronger base drive	Choose only for cost-sensitive, low-voltage (<60 V), non-inductive applications where diode omission is acceptable

Compared with MJ11015 and BDW53C, the TIP107 uniquely balances 100 V rating, integrated diode, TO-220 compatibility, and Darlington gain - making it optimal for mid-power motor control and audio output where reliability, simplicity, and thermal predictability are prioritized over extreme voltage or current ratings.

Availability

TIP107 is available at Aetrix Electronics and suitable for audio power amplifiers, DC motor drivers, DC-AC inverters, and industrial linear regulators requiring stable component supply across production lifecycles.

Supply support for TIP107 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, digital, and mixed-signal ICs and discrete power devices.

The TIP107 belongs to ST's legacy power bipolar transistor family, engineered specifically for robust, cost-effective linear and switching power control in industrial and consumer equipment.

FAQ

Is the TIP107 pin-compatible with the TIP102?

Yes - both use identical TO-220 package with Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. However, polarity differs: TIP102 is NPN, TIP107 is PNP. They are complementary, not interchangeable. Swapping them without circuit redesign will cause functional failure or damage.

Does the integrated diode require external biasing or protection?

No - the antiparallel diode is monolithically integrated between collector and emitter with no external terminals. It conducts automatically during reverse current flow (e.g., inductive flyback), requiring no external components or biasing. Its V_F is specified at 2.8 V @ −10 A.

What is the maximum safe continuous power dissipation at 70°C ambient?

At T_amb = 70 °C, derating applies: P_tot = 2 W − [(70 − 25) × (2 W / 62.5 °C)] = 1.28 W. This assumes no heatsink; with a typical 10 °C/W heatsink, junction temperature remains within 150 °C limit up to ~5.5 W dissipation.

Can the TIP107 be used in parallel for higher current handling?

Not recommended without individual emitter resistors. Darlington transistors exhibit negative temperature coefficient in V_BE, causing current hogging. If paralleling is essential, use 0.1–0.22 Ω emitter resistors per device and ensure matched thermal coupling to prevent thermal runaway.

TIP107 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):: 8 A

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

Vce Saturation (Max) @ Ib, Ic:: 2.5V @ 80mA, 8A

Current - Collector Cutoff (Max):: 50µA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 1000 @ 3A, 4V

Power - Max:: 2 W

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

TIP107 FAQ

1.How can I place an order for TIP107 through Aetrix?

Please submit a Request for Quotation (RFQ) for TIP107 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 TIP107 reliable?

The price and inventory of TIP107 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP107 is usually 5 days.

3.What payment methods are accepted for TIP107?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP107 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TIP107?

TIP107 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TIP107 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 TIP107?

For technical support, including TIP107 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP107 requirements.

6.How does Aetrix verify that TIP107 is sourced from the original manufacturer or authorized distributors?

All TIP107 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 TIP107 meets industry standards.

7.What is the process for return or replacement of TIP107?

All TIP107 units undergo pre-shipment inspection (PSI). If there is an issue with TIP107, 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 TIP107 part is unused and in its original packaging.

Return procedure for TIP107:

1.Submit a request within 90 days.

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

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