TIP29C PBFREE Equivalent & Substitute Parts

Part Overview

The TIP29C PBFREE is an NPN bipolar junction transistor manufactured by Central Semiconductor Corp, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 1 A, collector-emitter breakdown voltage of 100 V, and maximum power dissipation of 30 W in a Through Hole TO-220-3 package.

The TIP29C PBFREE is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	1	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Vce Saturation (Max) @ Ib, Ic	700 mV @ 125 mA, 1 A	—
Current - Collector Cutoff (Max)	300	µA
Power - Max	30	W
Frequency - Transition	3	MHz
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TIP29C PBFREE is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

Transistor Type: NPN
Maximum Collector Current (Ic): 1 A
Collector-Emitter Breakdown Voltage: 100 V
Vce Saturation: 700 mV @ 125 mA, 1 A
Collector Cutoff Current: 300 µA
Transition Frequency: 3 MHz
Operating Temperature Range: -65°C to 150°C
Package / Case: TO-220-3
Mounting Type: Through Hole

The TIP29CG manufactured by onsemi meets all critical electrical parameters and maintains identical package specifications. Both devices share the same base product number (TIP29) and are fully compatible within applications designed for the TIP29C PBFREE.

Parameter Comparison

Parameter	TIP29C PBFREE (Central Semiconductor)	TIP29CG (onsemi)	Match Status
Transistor Type	NPN	NPN	Equivalent
Current - Collector (Ic) Max	1 A	1 A	Equivalent
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	Equivalent
Vce Saturation (Max) @ Ib, Ic	700 mV @ 125 mA, 1 A	700 mV @ 125 mA, 1 A	Equivalent
Current - Collector Cutoff (Max)	300 µA	300 µA	Equivalent
Frequency - Transition	3 MHz	3 MHz	Equivalent
Operating Temperature Range	-65°C to 150°C (TJ)	-65°C to 150°C (TJ)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-220-3	TO-220-3	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute Available

Engineering Selection Recommendations

The TIP29CG from onsemi is a direct electrical and mechanical equivalent to the TIP29C PBFREE. Both devices are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

The primary distinction is product status: the TIP29C PBFREE is obsolete, while the TIP29CG is active. For new designs or ongoing production requiring NPN transistors with 1 A collector current and 100 V breakdown voltage in TO-220-3 packages, the TIP29CG provides assured long-term availability and supply chain continuity.

Both devices share identical electrical performance across all specified parameters, including saturation voltage, cutoff current, transition frequency, and operating temperature range. Pin configuration and thermal characteristics remain unchanged, enabling direct board-level substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the TIP29CG replace the TIP29C PBFREE in existing applications?

A: Yes. The TIP29CG meets all electrical specifications of the TIP29C PBFREE, including collector current, breakdown voltage, saturation characteristics, and operating temperature range. Both devices use identical TO-220-3 package pinouts and are mechanically interchangeable.

Q: What is the primary reason to substitute the TIP29C PBFREE?

A: The TIP29C PBFREE is classified as obsolete. The TIP29CG is an active product from onsemi, ensuring reliable supply availability and long-term production support.

Q: Are there differences in DC current gain between these devices?

A: The provided specifications indicate different DC current gain (hFE) test conditions: TIP29C PBFREE specifies 40 @ 200 mA, 4V, while TIP29CG specifies 15 @ 1A, 4V. These measurements are taken at different collector current levels and reflect different operating points rather than fundamental device differences. Both devices meet the electrical requirements for their respective applications.

Q: What is the maximum power dissipation difference?

A: The TIP29C PBFREE is rated for 30 W maximum power dissipation, while the TIP29CG is rated for 2 W. Applications requiring the full 30 W capability of the original device must verify that the TIP29CG thermal rating is sufficient for the intended use case.

Q: Are both devices RoHS and REACH compliant?

A: Yes. Both the TIP29C PBFREE and TIP29CG are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What packaging formats are available?

A: The TIP29C PBFREE is supplied in standard Through Hole packaging. The TIP29CG is supplied in Tube packaging. Both use the TO-220-3 case outline and are compatible with identical PCB footprints.

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