onsemi TIP107TU

Overview

TIP107TU from onsemi is a PNP silicon Darlington power transistor in TO-220AB package, rated for 100 V_CEO(sus), 8 A continuous collector current, and 80 W power dissipation at T_C = 25°C, designed for low-speed switching and linear amplifier applications in industrial control and power supply circuits.

For engineers reviewing the TIP107TU datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO(sus) = 100 V, h_FE ≥ 1000 @ I_C = 3.0 A, V_CE(sat) ≤ 2.5 V @ I_C = 8.0 A, built-in base-emitter shunt resistors, and TO-220AB thermal resistance R_JC = 1.56 °C/W.

Technical Context

The TIP107TU implements a monolithic Darlington pair with integrated ~8.0 kΩ and ~120 Ω base-emitter shunt resistors, enabling simplified biasing and improved turn-off behavior. It operates as a high-gain, medium-power PNP switch with second-breakdown-limited safe operating area up to 100 V and 8 A under DC conditions.

Its electrical behavior is characterized by V_BE(on) ≤ 2.8 V @ I_C = 8.0 A, C_ob = 300 pF @ V_CB = 10 V, and f = 0.1 MHz, with thermal response governed by R_JA = 62.5 °C/W and transient Z_JC(t) curves validated per Figure 5 of the datasheet.

Key Specifications

Pinout & Package

Package: TO-220AB (Case 221A), 4-pin through-hole, with pins 1–4 arranged linearly; metal tab is electrically connected to collector (pins 2 and 4).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MJD107G and TIP107G, the TIP107TU offers superior thermal performance in through-hole systems due to its 80 W TO-220AB rating and direct heatsink interface, while maintaining full compatibility with existing leaded-wave soldering infrastructure.

Availability

TIP107TU is available at Aetrix Electronics and suitable for industrial motor control, DC power supply regulation, and relay/solenoid driving applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TIP107TU 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The TIP107TU belongs to the TIP100–TIP107 complementary Darlington transistor family, engineered for cost-sensitive, medium-power linear and switching applications where high DC gain and ruggedness outweigh ultra-high-frequency requirements.

FAQ

What is the maximum collector-emitter sustaining voltage for TIP107TU?

The TIP107TU has a minimum collector-emitter sustaining voltage V_CEO(sus) of 100 Vdc at I_C = 30 mAdc with base open. This rating is verified per the onsemi datasheet Rev. 14 and defines the device's ability to block voltage in the off state under inductive switching conditions. The TIP107TU achieves this rating as part of the TIP102/TIP107 100 V group, distinguishing it from the 60 V (TIP100/TIP105) and 80 V (TIP101/TIP106) variants.

Does TIP107TU include internal base-emitter resistors?

Yes, the TIP107TU features monolithic construction with built-in base-emitter shunt resistors (~8.0 kΩ and ~120 Ω), as confirmed in the "Features" section and Figure 1 of the official datasheet. These resistors provide a defined discharge path for stored base charge, improving turn-off speed and reliability in inductive load switching-no external pull-down resistor is required for basic operation of the TIP107TU.

What is the thermal resistance from junction to case for TIP107TU?

The TIP107TU has a maximum thermal resistance R_JC of 1.56 °C/W, specified in the "THERMAL CHARACTERISTICS" table of the onsemi datasheet. This value applies to the TO-220AB package and is critical for calculating heatsink requirements: for example, at 80 W dissipation and maximum T_J = 150°C, the case temperature must be held ≤ 28°C above ambient to stay within limits. This R_JC is identical across all TIP10x devices in TO-220AB.

Can TIP107TU replace TIP105 or TIP106 in an existing design?

The TIP107TU is not a direct replacement for TIP105 or TIP106 due to its higher 100 V V_CEO(sus) rating versus 60 V (TIP105) and 80 V (TIP106). While pinout and package are identical, substituting TIP107TU may introduce over-specification without benefit-and could affect dynamic behavior due to differences in Cob (300 pF vs. 200 pF for TIP100–TIP102). Use TIP107TU only where 100 V blocking is explicitly required; otherwise, TIP105 or TIP106 remain appropriate for lower-voltage systems.

What is the DC current gain (h_FE) of TIP107TU at 8 A collector current?

The TIP107TU specifies h_FE ≥ 200 at I_C = 8.0 Adc, V_CE = 4.0 Vdc, per the "ELECTRICAL CHARACTERISTICS" table. This is the minimum guaranteed gain under those conditions; typical values exceed 1000 at lower currents (e.g., 3.0 A), but gain rolls off significantly at full rated current. Designers must size base drive accordingly-e.g., ≥80 mA base current is needed to achieve 8 A collector current with h_FE = 100, as reflected in the V_CE(sat) test condition.