TIP32CTU Equivalent & Substitute Parts

Part Overview

The TIP32CTU is a PNP bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 3 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TIP32CTU serves in applications requiring moderate-power PNP switching and amplification functions within the specified voltage and current ratings.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	100	V
Current - Collector (Ic) (Max)	3	A
Power - Max	2	W
Frequency - Transition	3	MHz
Vce Saturation (Max) @ Ib, Ic	1.2V @ 375mA, 3A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	10 @ 3A, 4V	—
Operating Temperature (Max)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—

Substitute Part Grouping Explanation

Substitution of the TIP32CTU is determined by strict equivalence or functional compatibility across the following critical parameters:

Direct Equivalents maintain identical electrical specifications: 100 V collector-emitter breakdown voltage, 3 A maximum collector current, 2 W power dissipation, 3 MHz transition frequency, and TO-220-3 package configuration. These parts are interchangeable without circuit modification.

Similar Substitutes share the same voltage rating (100 V) and package type (TO-220-3) but differ in one or more of the following: maximum collector current, power dissipation, or DC current gain. Selection of similar substitutes requires verification that the application does not exceed the substitute part's rated parameters.

Voltage-Reduced Alternatives maintain the 3 A current rating and 2 W power rating but operate at reduced maximum voltage (40 V instead of 100 V). These are suitable only for applications with lower voltage requirements.

Current-Reduced Alternatives maintain the 100 V voltage rating and 2 W power rating but support reduced maximum collector current (1 A instead of 3 A). These are suitable only for applications with lower current requirements.

Higher-Power Alternatives maintain the 100 V voltage rating and 3 A current rating but provide increased power dissipation capability (40 W or 90 W). These offer thermal margin improvement for demanding applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Ic (Max) [A]	Vce Breakdown (Max) [V]	Power (Max) [W]	Frequency [MHz]	hFE (Min) @ Ic, Vce	Package	RoHS Status
TIP32CTU	onsemi	Obsolete	3	100	2	3	10 @ 3A, 4V	TO-220-3	Not Compliant
TIP32CG	onsemi	Active	3	100	2	3	10 @ 3A, 4V	TO-220-3	ROHS3 Compliant
TIP32C	STMicroelectronics	Active	3	100	2	—	10 @ 3A, 4V	TO-220-3	ROHS3 Compliant
TIP32C-BP	Micro Commercial Co	Active	3	100	2	3	10 @ 3A, 4V	TO-220-3	ROHS3 Compliant
BD242CG	onsemi	Active	3	100	40	3	25 @ 1A, 4V	TO-220-3	ROHS3 Compliant
TIP30CG	onsemi	Active	1	100	2	3	15 @ 1A, 4V	TO-220-3	ROHS3 Compliant
TIP32G	onsemi	Active	3	40	2	3	10 @ 3A, 4V	TO-220-3	ROHS3 Compliant
TIP42CG	onsemi	Active	6	100	2	3	15 @ 3A, 4V	TO-220-3	ROHS3 Compliant
BD912	NTE Electronics, Inc	Active	15	100	90	3	40 @ 500mA, 4V	TO-220-3	Non-compliant

Engineering Selection Recommendations

Direct Replacement (Active Status, Full Electrical Equivalence):

TIP32CG (onsemi), TIP32C (STMicroelectronics), and TIP32C-BP (Micro Commercial Co) are direct functional equivalents to the obsolete TIP32CTU. All three maintain identical electrical specifications: 100 V breakdown voltage, 3 A maximum collector current, 2 W power dissipation, and TO-220-3 package. TIP32CG and TIP32C-BP are ROHS3 compliant and carry active product status. TIP32C is ROHS3 compliant and active. Selection among these three is based on supplier availability, packaging preference (tube versus TO-220AB variant), and compliance requirements.

Higher Power Dissipation Alternative (Active Status, Voltage and Current Maintained):

BD242CG (onsemi) maintains the 100 V voltage rating and 3 A current rating while providing 40 W power dissipation compared to 2 W in the TIP32CTU. This part is suitable for applications requiring improved thermal performance. BD242CG is ROHS3 compliant and carries active product status.

Current-Limited Alternative (Active Status, Voltage Maintained):

TIP30CG (onsemi) maintains the 100 V voltage rating and 2 W power dissipation but supports only 1 A maximum collector current. This part is suitable for applications with lower current requirements. TIP30CG is ROHS3 compliant and carries active product status.

Voltage-Limited Alternative (Active Status, Current and Power Maintained):

TIP32G (onsemi) maintains the 3 A current rating and 2 W power dissipation but operates at 40 V maximum breakdown voltage. This part is suitable for applications with lower voltage requirements. TIP32G is ROHS3 compliant and carries active product status.

Higher Current Alternative (Active Status, Voltage Maintained):

TIP42CG (onsemi) maintains the 100 V voltage rating and 2 W power dissipation but supports 6 A maximum collector current. This part is suitable for applications requiring higher current capability. TIP42CG is ROHS3 compliant and carries active product status.

High-Power Alternative (Active Status, Voltage Maintained):

BD912 (NTE Electronics, Inc) maintains the 100 V voltage rating but provides 15 A maximum collector current and 90 W power dissipation. This part is suitable for high-power applications. BD912 carries active product status but is not RoHS compliant.

Frequently Asked Questions (FAQ)

Q: Can TIP32CG be used as a direct replacement for TIP32CTU?

A: Yes. TIP32CG is a direct functional equivalent. Both devices share identical electrical specifications: 100 V collector-emitter breakdown voltage, 3 A maximum collector current, 2 W power dissipation, 3 MHz transition frequency, and TO-220-3 package. TIP32CG is active and ROHS3 compliant, addressing the obsolescence of TIP32CTU.

Q: What is the difference between TIP32CG and TIP32C?

A: Both are direct electrical equivalents to TIP32CTU with 100 V, 3 A, and 2 W ratings in TO-220-3 packages. TIP32CG is manufactured by onsemi; TIP32C is manufactured by STMicroelectronics. Both are ROHS3 compliant and active. Selection is based on supplier availability and preferred manufacturer.

Q: Can BD242CG replace TIP32CTU in all applications?

A: BD242CG maintains the 100 V voltage rating and 3 A current rating but provides 40 W power dissipation instead of 2 W. It is electrically compatible and suitable for all TIP32CTU applications. The increased power rating provides thermal margin. BD242CG is ROHS3 compliant and active.

Q: When should TIP30CG be selected instead of TIP32CG?

A: TIP30CG is selected when the application requires only 1 A maximum collector current. It maintains the 100 V voltage rating and 2 W power dissipation. TIP30CG is not suitable for applications requiring the full 3 A capability of TIP32CTU.

Q: Is TIP32G suitable for 100 V applications?

A: No. TIP32G operates at a maximum of 40 V collector-emitter breakdown voltage. It is suitable only for applications with voltage requirements of 40 V or lower. For 100 V applications, use TIP32CG, TIP32C, or TIP32C-BP.

Q: What is the advantage of BD912 over TIP32CG?

A: BD912 maintains the 100 V voltage rating but provides 15 A maximum collector current and 90 W power dissipation compared to 3 A and 2 W in TIP32CG. BD912 is suitable for high-power applications. BD912 is not RoHS compliant.

Q: Are all substitute parts available in TO-220-3 package?

A: Yes. All substitute parts listed are available in TO-220-3 through-hole package configuration. TIP32C-BP is supplied in TO-220AB variant, which is mechanically compatible with TO-220-3.

Q: Which substitute offers the best compliance profile?

A: TIP32CG, TIP32C, TIP32C-BP, BD242CG, TIP30CG, TIP32G, and TIP42CG are all ROHS3 compliant and carry active product status. BD912 is active but not RoHS compliant. For compliance-critical applications, select from the ROHS3 compliant options.

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