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

onsemi TIP29C

Name: TIP29C
Brand: onsemi
SKU: TIP29C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TIP29C

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: TIP29C.pdf

Description:: TRANS NPN 100V 1A TO-220

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TIP29C from onsemi is an NPN silicon power transistor in TO−220 package, rated for 100 V_CEO, 1.0 A continuous collector current, and 30 W total power dissipation at T_C = 25°C. It delivers h_FE ≥ 15 at I_C = 1.0 A, V_CE = 4.0 V, and exhibits V_CE(sat) ≤ 0.7 V under same conditions - used in linear amplifiers, relay drivers, and DC motor control stages.

For engineers reviewing the TIP29C datasheet, pinout, applications, or equivalent options, key selection criteria include its 100 V blocking capability, thermal resistance of 4.167 °C/W (junction-to-case), unclamped inductive energy rating of 32 mJ, and Pb-free TO−220 packaging suitable for industrial switching and audio output stages.

Technical Context

The TIP29C operates as a medium-power NPN bipolar junction transistor optimized for linear amplification and hard-switching applications. Its safe operating area (SOA) is defined up to 100 V and 1.0 A with second-breakdown limits validated for 1 ms pulses at T_J(pk) = 150°C.

It features f_T = 3.0 MHz at I_C = 200 mA, V_CE = 10 V, enabling use in low-frequency RF driver and wideband audio output stages. Base-emitter turn-on voltage is specified ≤ 1.3 V at I_C = 1.0 A, supporting direct TTL/CMOS interface with appropriate base drive.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 Vdc - supports high-voltage DC bus switching up to 100 V without breakdown
I_C (continuous)	1.0 Adc - delivers full-rated load current in Class-A/B amplifier output stages
P_D @ T_C = 25°C	30 W - enables heatsink-mounted operation with 4.167 °C/W thermal path to case
h_FE	15–75 - provides stable current gain across 0.2–1.0 A range for predictable bias design
V_CE(sat)	≤ 0.7 V @ I_C = 1.0 A, I_B = 125 mA - minimizes conduction loss in saturated switch mode
f_T	3.0 MHz - sufficient bandwidth for audio frequency amplification and low-speed digital switching
R_JA	62.5 °C/W - defines maximum ambient temperature rise under free-air conditions

Pinout & Package

Package: TO−220 (Case 221A, Style 1), Pb-free, through-hole mounting with metal tab electrically connected to collector.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input terminal; requires ≥125 mA base drive for full saturation at 1.0 A collector load
2 & 4	Collector	Common collector terminals tied to metal tab; must be isolated from heatsink unless electrically referenced to system ground
3	Emiter	Output reference node; connects to load return or ground in common-emitter configuration

Key Features

Feature	Design Value
Complementary PNP pair	Matched performance with TIP30C for push-pull amplifier designs
Unclamped inductive energy rating	32 mJ - enables robust switching into inductive loads like relays and solenoids without snubber
JEDEC-standard TO−220 footprint	Enables drop-in replacement in legacy PCBs designed for similar 1 A, 100 V transistors
Pb-free and RoHS-compliant	Meets EU Directive 2011/65/EU; compatible with lead-free reflow and wave soldering processes
Wide operating temperature range	–65°C to +150°C junction - supports deployment in automotive under-hood and industrial control environments

Applications

Audio Power Amplifier Output Stage	DC Motor Driver (12–24 V)
Use Scenario: Final output stage in Class-AB audio amplifiers delivering up to 15 W into 8 Ω loads. IC Role / Device Role / Timing Role: NPN power transistor configured in common-emitter topology, driven by pre-driver stage. Use Value: V_CEO = 100 V and h_FE ≥ 15 ensure headroom and linearity at peak signal swing; R_JC = 4.167 °C/W allows thermal management with standard extruded heatsinks.	Use Scenario: H-bridge half-bridge leg driving brushed DC motors in industrial actuators and HVAC dampers. IC Role / Device Role / Timing Role: High-side or low-side switching element controlled by PWM logic. Use Value: 32 mJ unclamped inductive energy rating permits safe turn-off without external flyback diode in low-duty-cycle applications.
Relay and Solenoid Driver	Linear Voltage Regulator Pass Element
Use Scenario: Driving 12 V/24 V electromagnetic relays and pneumatic solenoids in PLC I/O modules. IC Role / Device Role / Timing Role: Saturated switch interfacing microcontroller GPIO to inductive load. Use Value: V_CE(sat) ≤ 0.7 V minimizes power loss and self-heating during sustained ON state; TO−220 tab simplifies mechanical mounting to chassis ground.	Use Scenario: Series pass transistor in adjustable linear regulators supplying 1–1.5 A at up to 80 V input differential. IC Role / Device Role / Timing Role: Continuously biased active element dissipating excess input-output voltage drop. Use Value: SOA curve validated to 100 V × 1.0 A ensures safe operation under worst-case dropout and load transient conditions.

Audio Power Amplifier Output Stage

DC Motor Driver (12–24 V)

Use Scenario: Final output stage in Class-AB audio amplifiers delivering up to 15 W into 8 Ω loads.

IC Role / Device Role / Timing Role: NPN power transistor configured in common-emitter topology, driven by pre-driver stage.

Use Value: V_CEO = 100 V and h_FE ≥ 15 ensure headroom and linearity at peak signal swing; R_JC = 4.167 °C/W allows thermal management with standard extruded heatsinks.

Use Scenario: H-bridge half-bridge leg driving brushed DC motors in industrial actuators and HVAC dampers.

IC Role / Device Role / Timing Role: High-side or low-side switching element controlled by PWM logic.

Use Value: 32 mJ unclamped inductive energy rating permits safe turn-off without external flyback diode in low-duty-cycle applications.

Relay and Solenoid Driver

Linear Voltage Regulator Pass Element

Use Scenario: Driving 12 V/24 V electromagnetic relays and pneumatic solenoids in PLC I/O modules.

IC Role / Device Role / Timing Role: Saturated switch interfacing microcontroller GPIO to inductive load.

Use Value: V_CE(sat) ≤ 0.7 V minimizes power loss and self-heating during sustained ON state; TO−220 tab simplifies mechanical mounting to chassis ground.

Use Scenario: Series pass transistor in adjustable linear regulators supplying 1–1.5 A at up to 80 V input differential.

IC Role / Device Role / Timing Role: Continuously biased active element dissipating excess input-output voltage drop.

Use Value: SOA curve validated to 100 V × 1.0 A ensures safe operation under worst-case dropout and load transient conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD2955G	PNP complement (not NPN); higher I_C = 12 A, lower V_CEO = 60 V; TO-263 surface-mount	Not interchangeable - opposite polarity and package; requires redesign for layout and drive polarity	Select only if PNP function and SMT assembly are required; not a functional substitute for TIP29C
2N3055G	Higher I_C = 15 A, same V_CEO = 100 V, but f_T = 0.9 MHz and h_FE min = 20; TO-3 metal can	Requires larger heatsink and different mounting; lower bandwidth limits audio fidelity	Choose when higher current capacity is needed and TO-3 mechanical integration is acceptable

Compared with MJD2955G and 2N3055G, the TIP29C offers optimal balance of voltage rating, gain consistency, and TO−220 manufacturability for mid-power discrete switching - neither alternative matches its combination of 100 V, 1 A, and 3 MHz bandwidth in through-hole form.

Availability

TIP29C is available at Aetrix Electronics and suitable for industrial motor control, audio amplifier production, and relay interface modules requiring stable component supply and long-term obsolescence management.

Supply support for TIP29C 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 focused on energy-efficient electronics, with leadership in power management, analog, sensors, and connectivity solutions.

The TIP29C belongs to onsemi's legacy silicon power transistor family designed for cost-sensitive, high-reliability general-purpose amplifier and switching applications - emphasizing ruggedness, manufacturability, and JEDEC-standard compatibility.

FAQ

What is the maximum collector-emitter voltage rating for the TIP29C?

The TIP29C has a maximum collector-emitter sustaining voltage (V_CEO(sus)) of 100 Vdc at I_C = 30 mA and I_B = 0. This rating is confirmed in the Electrical Characteristics table and defines the absolute upper limit for safe DC or pulse operation without avalanche breakdown. Exceeding this voltage risks permanent device failure. The TIP29C datasheet specifies this value explicitly for the TIP29CG variant, which shares identical electrical ratings with TIP29C.

Is the TIP29C pin-compatible with other TIP29 variants like TIP29A or TIP29B?

No - while all TIP29 variants share the same TO−220 package and pinout (Base–Collector–Emitter–Collector), their voltage ratings differ: TIP29A is rated for 60 V, TIP29B for 80 V, and TIP29C for 100 V. Substituting a lower-voltage variant risks overvoltage failure. The TIP29C must be used where 100 V blocking is required; its pinout is identical, but electrical specifications are not interchangeable.

Does the TIP29C require a heatsink in normal operation?

Yes - the TIP29C dissipates up to 30 W at T_C = 25°C, but its thermal resistance R_JA is 62.5 °C/W in free air. Without a heatsink, even 2 W dissipation raises junction temperature beyond safe limits. A heatsink is mandatory for any application exceeding ~0.5 W continuous power. The metal tab (pins 2 & 4) is electrically connected to the collector and must be insulated if mounted to a grounded heatsink.

What is the typical DC current gain (h_FE) of the TIP29C at 1.0 A collector current?

The TIP29C guarantees h_FE ≥ 15 at I_C = 1.0 A, V_CE = 4.0 V, and T_C = 25°C per the Electrical Characteristics table. Typical values reach 75 under the same conditions. This gain range supports predictable bias network design in linear amplifiers and ensures sufficient drive margin for saturation in switching applications using the TIP29C.

Can the TIP29C be used as a direct replacement for the obsolete TIP29 in new designs?

Yes - the TIP29C is the Pb-free, RoHS-compliant successor to the legacy TIP29, sharing identical pinout, package, and thermal characteristics. Its V_CEO rating (100 V) exceeds the original TIP29 (40 V), making it a functional upgrade. However, circuit validation is required to confirm no overdesign or unintended interaction due to higher voltage margin. The TIP29C datasheet confirms backward compatibility in mechanical and electrical interface.

TIP29C Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1 A

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

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 125mA, 1A

Current - Collector Cutoff (Max):: 300µA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 15 @ 1A, 4V

Power - Max:: 2 W

Frequency - Transition:: 3MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

TIP29C FAQ

1.How can I place an order for TIP29C through Aetrix?

Please submit a Request for Quotation (RFQ) for TIP29C 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 TIP29C reliable?

The price and inventory of TIP29C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP29C is usually 5 days.

3.What payment methods are accepted for TIP29C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP29C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TIP29C?

TIP29C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TIP29C 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 TIP29C?

For technical support, including TIP29C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP29C requirements.

6.How does Aetrix verify that TIP29C is sourced from the original manufacturer or authorized distributors?

All TIP29C 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 TIP29C meets industry standards.

7.What is the process for return or replacement of TIP29C?

All TIP29C units undergo pre-shipment inspection (PSI). If there is an issue with TIP29C, 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 TIP29C part is unused and in its original packaging.

Return procedure for TIP29C:

1.Submit a request within 90 days.

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

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