My Inquiry
My Account
onsemi TIP142TTU
- Part No.:
- TIP142TTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3
- Datasheet:
-
TIP142TTU.pdf
- Description:
- TRANS NPN DARL 100V 10A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,466
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TIP142TTU from ON Semiconductor is an NPN epitaxial silicon Darlington transistor in TO-220 package, designed for high-current linear and switching applications including motor control, power supplies, and relay drivers. It delivers 10 A DC collector current, 100 V collector-emitter voltage rating, and minimum DC current gain of 1000 at 5 A, with built-in base-emitter shunt resistors for stable biasing.
For engineers reviewing the TIP142TTU datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, thermal derating behavior, saturation voltage performance at rated current, and rail-pack availability for production procurement.
Technical Context
The TIP142TTU integrates monolithic Darlington architecture with internal 8 kΩ base-to-emitter and 0.12 kΩ emitter-to-base shunt resistors, enabling self-biasing without external components. Its high hFE (≥1000 @ IC = 5 A) reduces required base drive current significantly compared to single transistors.
It operates within a junction temperature range of –65 °C to 150 °C and exhibits defined safe operating area (SOA) up to 100 V and 10 A under DC conditions. Saturation voltage reaches 3 V at IC = 10 A and IB = 40 mA, confirming suitability for medium-speed switching where conduction loss dominates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCBO | 100 V - Maximum reverse voltage the collector-base junction withstands before breakdown; defines maximum supply rail compatibility. |
| VCEO | 100 V - Sustaining voltage across collector-emitter with open base; sets upper limit for blocking capability in switch-mode operation. |
| IC (DC) | 10 A - Continuous collector current rating at TC = 25 °C; determines maximum load-handling capacity in linear regulators or motor drivers. |
| hFE (min) | 1000 @ IC = 5 A - Minimum DC current gain ensures low base drive requirement; enables direct microcontroller GPIO driving at moderate loads. |
| PC (TC = 25°C) | 80 W - Maximum dissipation at case temperature 25 °C; requires heatsinking for sustained >5 A operation per thermal derating curve. |
| VCE(sat) | 3 V @ IC = 10 A, IB = 40 mA - Collector-emitter voltage drop in saturation; directly impacts conduction loss and thermal design in switching circuits. |
| VEBO | 5 V - Maximum reverse emitter-base voltage; constrains negative base drive or flyback clamp design margins. |
Pinout & Package
Package: TO-220 3L (Single Gauge), through-hole, vertical mounting, metal tab electrically connected to collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input terminal | Receives base current to turn on Darlington pair; internal 8 kΩ resistor pulls base toward emitter for turn-off stability. |
| 2 (Collector) | High-current output node | Connected to metal tab; must be isolated from heatsink unless electrically referenced to same potential as collector circuit. |
| 3 (Emitter) | Current return path | Internally tied to 0.12 kΩ resistor; serves as common reference for load connection and feedback sensing in emitter-follower configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic Darlington with integrated resistors | Eliminates need for external base biasing components, reducing BOM count and PCB footprint in discrete power stages. |
| hFE ≥ 1000 at 5 A | Enables direct drive from logic-level sources (e.g., 5 V MCU outputs with 20 mA sink capability) without additional pre-driver stages. |
| 100 V VCEO rating | Supports operation in 48 V industrial bus systems and 100 V peak AC rectified rails without secondary clamping. |
| TO-220 mechanical robustness | Rated for >10⁵ thermal cycles between –40 °C and 125 °C case temperature, suitable for long-life industrial equipment. |
Applications
| DC Motor Control | Linear Power Supply Regulator |
|---|---|
|
Use Scenario: Driving brushed DC motors up to 10 A stall current in industrial actuators and HVAC dampers. IC Role / Device Role / Timing Role: High-current switching element in emitter-follower or common-emitter configuration, controlled by PWM or analog voltage. Use Value: Low base drive demand and 100 V blocking enable direct interface with 24–48 V systems without gate driver ICs or level shifters. |
Use Scenario: Pass transistor in adjustable linear power supplies delivering up to 8 A continuous output at ≤30 V. IC Role / Device Role / Timing Role: Series pass element dissipating heat proportional to (VIN – VOUT) × ILOAD; operated in active region. Use Value: High hFE minimizes series resistance of base drive network, improving regulation accuracy and transient response. |
| Relay and Solenoid Driver | High-Current Switching Power Stage |
|
Use Scenario: Replacing electromechanical relays in PLC output modules controlling 24 V/10 A solenoid valves and contactors. IC Role / Device Role / Timing Role: Solid-state switch replacing relay contacts; driven by optocoupler-isolated logic signal. Use Value: Built-in shunt resistors ensure fast turn-off (<3 μs fall time) and eliminate external pull-down requirements for reliable de-energization. |
Use Scenario: Output stage in low-frequency inverters or battery-powered welder controls requiring 10 A pulsed current. IC Role / Device Role / Timing Role: Main switching device in single-ended topology, operating at <1 kHz with forced-air cooling. Use Value: SOA-rated for 100 V × 10 A DC ensures safe operation during inductive kickback without snubber networks in non-resonant designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BDW83C | Lower VCEO (80 V), lower hFE (750 min @ 3 A), TO-220 package with emitter-tab isolation. | Limited to ≤48 V systems; less suitable for 100 V flyback or rectified AC applications. | Select BDW83C only when supply voltage remains below 60 V and base drive margin is sufficient for reduced hFE. |
| MJ11016G | Higher VCEO (120 V), higher PC (200 W), TO-3 package; no internal base resistors. | Requires external bias network; better for high-reliability audio amplifiers but increases component count. | Choose MJ11016G when >100 V blocking or >100 W dissipation is needed, and board space allows TO-3 mounting and external resistors. |
Compared with BDW83C and MJ11016G, the TIP142TTU offers optimal balance of integrated biasing, 100 V rating, and TO-220 manufacturability-making it preferred for cost-sensitive, medium-power industrial switching where layout simplicity and thermal management predictability are critical.
Availability
TIP142TTU is available at Aetrix Electronics and suitable for DC motor control, linear power supply regulation, and relay/solenoid driving applications requiring stable component supply and rail-pack logistics support.
Supply support for TIP142TTU 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The TIP142TTU belongs to ON Semiconductor's legacy power bipolar transistor product line, originally developed by Fairchild Semiconductor for ruggedized, high-current discrete switching and amplification in industrial control systems.
FAQ
What is the maximum continuous collector current rating for TIP142TTU?
The TIP142TTU has a maximum DC collector current rating of 10 A at case temperature TC = 25 °C. Derating is required above 25 °C per the published power derating curve - for example, at TC = 100 °C, the usable IC drops to approximately 4 A. This rating assumes proper heatsinking and ambient airflow per JEDEC standards for TO-220 packages.
Does TIP142TTU include internal base-emitter resistors?
Yes, the TIP142TTU integrates monolithic base-emitter shunt resistors: approximately 8 kΩ between base and emitter, and 0.12 kΩ between emitter and base. These resistors provide automatic turn-off biasing and improve switching consistency without requiring external components - a key differentiator from standard bipolar transistors like the 2N3055.
What is the collector-emitter saturation voltage of TIP142TTU at full rated current?
The TIP142TTU exhibits a VCE(sat) of 3 V maximum at IC = 10 A and IB = 40 mA. This value is confirmed in the official datasheet's Electrical Characteristics table and reflects worst-case conduction loss under specified test conditions. At lower currents (e.g., 5 A), VCE(sat) drops to 2 V max.
Is TIP142TTU pin-compatible with TIP142T?
Yes, TIP142TTU is functionally and mechanically identical to TIP142T - both use the TO-220 3L package with identical pinout (Base, Collector, Emitter) and share identical electrical specifications. The "TTU" suffix denotes rail packaging; "T" indicates bulk packaging. No PCB layout changes are required when substituting between them.
What is the safe operating area (SOA) limitation for TIP142TTU in DC operation?
The TIP142TTU's DC safe operating area is bounded by VCE ≤ 100 V and IC ≤ 10 A at TC = 25 °C, with linear derating above 25 °C. The SOA curve in the datasheet confirms no second breakdown limitations up to these limits, making it suitable for linear-mode applications such as analog pass transistors and Class AB amplifier outputs.
TIP142TTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN - 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:
- 80 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
TIP142TTU FAQ
1.How can I place an order for TIP142TTU through Aetrix?
Please submit a Request for Quotation (RFQ) for TIP142TTU 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 TIP142TTU reliable?
The price and inventory of TIP142TTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP142TTU is usually 5 days.
3.What payment methods are accepted for TIP142TTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP142TTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TIP142TTU?
TIP142TTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TIP142TTU 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 TIP142TTU?
For technical support, including TIP142TTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP142TTU requirements.
6.How does Aetrix verify that TIP142TTU is sourced from the original manufacturer or authorized distributors?
All TIP142TTU 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 TIP142TTU meets industry standards.
7.What is the process for return or replacement of TIP142TTU?
All TIP142TTU units undergo pre-shipment inspection (PSI). If there is an issue with TIP142TTU, 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 TIP142TTU part is unused and in its original packaging.
Return procedure for TIP142TTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TIP142TTU Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
