TIP29C-BP Equivalent & Substitute Parts

Part Overview

The TIP29C-BP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, rated for 100 V collector-emitter breakdown voltage and 1 A maximum collector current in a TO-220AB through-hole package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The TIP29C-BP is suitable for general-purpose switching and amplification applications requiring moderate power dissipation up to 30 W.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	100	V
Current - Collector (Ic) (Max)	1	A
Power - Max	30	W
Vce Saturation (Max) @ Ib, Ic	700mV @ 125mA, 1A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	15 @ 1A, 4V	—
Frequency - Transition	3	MHz
Operating Temperature Range	-55 to 150	°C
Package / Case	TO-220-3	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the TIP29C-BP is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 100 V minimum
Current - Collector (Ic) (Max): 1 A minimum
Package / Case: TO-220-3
Mounting Type: Through Hole

Secondary Compatibility Factors:

Vce Saturation characteristics at specified bias conditions
DC Current Gain (hFE) at rated collector current
Frequency - Transition: 3 MHz or higher
Operating Temperature Range: Must encompass application requirements
RoHS3 Compliance and REACH Status

Substitute parts are classified into two categories:

Direct Equivalents: Parts meeting or exceeding all primary substitution criteria with identical or superior electrical performance at the specified operating point (1 A, 4 V).

Similar Substitutes: Parts meeting primary substitution criteria but with higher current ratings or modified power dissipation characteristics, suitable for applications where the TIP29C-BP specifications are not fully utilized.

Parameter Comparison

Parameter	TIP29C-BP (Main)	TIP29C (NTE)	TIP29CG (onsemi)	TIP31C-BP (MCC)	BD239C (STM)	BD239CTU (onsemi)
Manufacturer	Micro Commercial Co	NTE Electronics, Inc	onsemi	Micro Commercial Co	STMicroelectronics	onsemi
Product Status	Obsolete	Active	Active	Active	Active	Last Time Buy
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	100 V	100 V	100 V	100 V
Current - Collector (Ic) (Max)	1 A	1 A	1 A	3 A	2 A	2 A
Power - Max	30 W	2 W	2 W	2 W	2 W	30 W
Vce Saturation (Max) @ Ib, Ic	700mV @ 125mA, 1A	700mV @ 125mA, 1A	700mV @ 125mA, 1A	1.2V @ 375mA, 3A	700mV @ 200mA, 1A	700mV @ 200mA, 1A
DC Current Gain (hFE) (Min) @ Ic, Vce	15 @ 1A, 4V	15 @ 1A, 4V	15 @ 1A, 4V	10 @ 3A, 4V	15 @ 1A, 4V	15 @ 1A, 4V
Frequency - Transition	3 MHz	3 MHz	3 MHz	3 MHz	— (not specified)	— (not specified)
Operating Temperature Range	-55 to 150 °C	-65 to 150 °C	-65 to 150 °C	150 °C (TJ)	150 °C (TJ)	150 °C (TJ)
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS3 Compliance	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
REACH Status	REACH Unaffected	Vendor Undefined	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Direct Equivalent Selection:

TIP29C (NTE Electronics, Inc) and TIP29CG (onsemi) are direct electrical equivalents to the TIP29C-BP. Both parts maintain identical collector current (1 A), collector-emitter breakdown voltage (100 V), saturation voltage characteristics, and DC current gain specifications at the 1 A, 4 V operating point. Both are active products with RoHS3 compliance and REACH unaffected status, providing long-term procurement stability. TIP29CG offers extended operating temperature range (-65 to 150 °C) compared to the main part (-55 to 150 °C). The primary distinction is packaging: TIP29C is supplied in standard TO-220 format, while TIP29CG is supplied in tube packaging.

Higher Current Capability Alternatives:

TIP31C-BP (Micro Commercial Co) provides 3 A maximum collector current with identical voltage rating and 3 MHz transition frequency. This part is suitable for applications requiring higher current capacity while maintaining the same voltage class. However, DC current gain is reduced to 10 @ 3A, 4V, and power dissipation is limited to 2 W.

BD239C (STMicroelectronics) and BD239CTU (onsemi) provide 2 A maximum collector current with 100 V voltage rating. BD239CTU maintains the 30 W power dissipation specification of the main part, making it suitable for higher power applications. BD239C is limited to 2 W power dissipation. Both parts exhibit identical saturation voltage and DC current gain at 1 A operation.

Product Status Considerations:

TIP29C and TIP29CG are active products with unrestricted availability. BD239CTU carries Last Time Buy status, indicating limited future availability. Selection should prioritize active products for new designs requiring long-term component supply.

Frequently Asked Questions (FAQ)

Q: Can TIP29C or TIP29CG be used as direct replacements for TIP29C-BP?

A: Yes. TIP29C (NTE Electronics) and TIP29CG (onsemi) are direct electrical equivalents meeting all primary substitution criteria. Both maintain 1 A collector current, 100 V breakdown voltage, and identical saturation and gain characteristics at the 1 A, 4 V operating point. Both are RoHS3 compliant and active products. Mechanical compatibility is confirmed through identical TO-220-3 package and through-hole mounting.

Q: What is the difference between TIP29C and TIP29CG?

A: Both parts are electrically identical NPN transistors with 1 A, 100 V ratings. The primary differences are manufacturer (NTE Electronics versus onsemi) and packaging format (standard TO-220 versus tube). TIP29CG offers extended operating temperature range (-65 to 150 °C) compared to TIP29C (-65 to 150 °C). Both are active products suitable for direct substitution.

Q: When should TIP31C-BP be selected instead of direct equivalents?

A: TIP31C-BP should be selected when the application requires collector current exceeding 1 A, up to 3 A maximum. This part maintains the same 100 V voltage rating and 3 MHz transition frequency. However, DC current gain is lower (10 @ 3A, 4V), and power dissipation is limited to 2 W. Applications operating at or below 1 A should use direct equivalents to maintain specified gain characteristics.

Q: Are BD239C and BD239CTU suitable substitutes for the TIP29C-BP?

A: BD239C and BD239CTU are similar substitutes with 2 A collector current rating and 100 V breakdown voltage. Both maintain identical saturation voltage and DC current gain at 1 A operation. BD239CTU preserves the 30 W power dissipation specification of the main part, while BD239C is limited to 2 W. Both are mechanically compatible through TO-220-3 packaging. BD239CTU carries Last Time Buy status, limiting future availability.

Q: What compliance certifications should be verified for substitute parts?

A: All listed substitute parts are RoHS3 compliant. REACH status is unaffected for TIP29CG, TIP31C-BP, BD239C, and BD239CTU. TIP29C (NTE Electronics) shows vendor-undefined REACH status and should be verified with the supplier before procurement for applications requiring explicit REACH compliance documentation.

Q: Can substitute parts be used interchangeably in existing designs?

A: Direct equivalents (TIP29C and TIP29CG) are pin-compatible and electrically interchangeable with identical performance at the 1 A, 4 V operating point. Higher current alternatives (TIP31C-BP, BD239C, BD239CTU) are mechanically compatible but exhibit different electrical characteristics at higher currents and should be evaluated for specific circuit requirements. All parts share identical TO-220-3 package pinout and through-hole mounting.

Q: What is the significance of the 30 W power rating difference between TIP29C-BP and substitute parts?

A: TIP29C-BP is rated for 30 W maximum power dissipation. Direct equivalents TIP29C and TIP29CG are rated for 2 W, reflecting different thermal management specifications. BD239CTU also maintains 30 W rating. For applications requiring sustained power dissipation above 2 W, BD239CTU or the original TIP29C-BP specification should be selected. Applications operating below 2 W can use any listed substitute.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message