TIP32CTSTU Equivalent & Substitute Parts

Part Overview

The TIP32CTSTU 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 procurement. The TIP32CTSTU delivers 2 W maximum power dissipation with a 3 MHz transition frequency, suitable for general-purpose switching and amplification applications requiring moderate current handling at moderate voltages.

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	—
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Operating Temperature (Max)	150	°C

Substitute Part Grouping Explanation

Substitution of the TIP32CTSTU is determined by matching the following critical electrical and mechanical parameters:

Primary Matching Criteria:

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

Secondary Compatibility Factors:

Vce Saturation characteristics
DC Current Gain (hFE)
Power dissipation capability
Transition frequency
Operating temperature range

Substitute parts are classified into two categories:

Direct Substitutes maintain identical electrical ratings (100 V, 3 A, 2 W) and are pin-compatible replacements. These include TIP32CG (onsemi), TIP32C (STMicroelectronics), and TIP32C-BP (Micro Commercial Co).

Similar Substitutes share the same voltage and current ratings but may differ in power dissipation, current gain, or other secondary parameters. These include BD242CG (40 W power rating), TIP30CG (1 A current rating), TIP32G (40 V voltage rating), TIP42CG (6 A current rating), and BD912 (15 A current rating, 90 W power rating).

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	Vce Breakdown (Max)	Power (Max)	hFE (Min)	Vce Sat (Max)	Package	Status
TIP32CTSTU	onsemi	3 A	100 V	2 W	10 @ 3A, 4V	1.2V @ 375mA, 3A	TO-220-3	Obsolete
TIP32CG	onsemi	3 A	100 V	2 W	10 @ 3A, 4V	1.2V @ 375mA, 3A	TO-220-3	Active
TIP32C	STMicroelectronics	3 A	100 V	2 W	10 @ 3A, 4V	1.2V @ 375mA, 3A	TO-220-3	Active
TIP32C-BP	Micro Commercial Co	3 A	100 V	2 W	10 @ 3A, 4V	1.2V @ 375mA, 3A	TO-220-3	Active
BD242CG	onsemi	3 A	100 V	40 W	25 @ 1A, 4V	1.2V @ 600mA, 3A	TO-220-3	Active
TIP30CG	onsemi	1 A	100 V	2 W	15 @ 1A, 4V	700mV @ 125mA, 1A	TO-220-3	Active
TIP32G	onsemi	3 A	40 V	2 W	10 @ 3A, 4V	1.2V @ 375mA, 3A	TO-220-3	Active
TIP42CG	onsemi	6 A	100 V	2 W	15 @ 3A, 4V	1.5V @ 600mA, 6A	TO-220-3	Active
BD912	NTE Electronics, Inc	15 A	100 V	90 W	40 @ 500mA, 4V	3V @ 2.5A, 10A	TO-220-3	Active

Engineering Selection Recommendations

Direct Substitutes (Recommended for Pin-Compatible Replacement):

TIP32CG, TIP32C, and TIP32C-BP are direct electrical and mechanical equivalents to the TIP32CTSTU. All three maintain identical ratings of 100 V, 3 A, and 2 W with matching saturation voltage and current gain characteristics. TIP32CG and TIP32C are both active products with full production support. TIP32CG (onsemi) offers the highest inventory availability at 20,100 units. TIP32C (STMicroelectronics) provides the largest stock at 45,550 units and carries ROHS3 compliance. TIP32C-BP (Micro Commercial Co) is supplied in TO-220AB variant packaging with 4,568 units available.

Voltage-Compatible Substitutes (100 V Rating):

BD242CG, TIP42CG, and BD912 maintain the 100 V collector-emitter breakdown voltage rating. BD242CG provides enhanced power dissipation (40 W) while retaining 3 A current capacity, suitable for applications requiring improved thermal performance. TIP42CG increases current capacity to 6 A while maintaining 2 W power rating, appropriate for higher-current switching applications. BD912 offers the highest current capacity at 15 A with 90 W power dissipation, designed for high-power switching circuits. BD912 is non-compliant with RoHS standards.

Current-Compatible Substitutes (3 A Rating):

TIP32CG, TIP32C, TIP32C-BP, BD242CG, and TIP32G all maintain the 3 A maximum collector current rating. TIP32G operates at reduced voltage (40 V) and is suitable only for applications with lower voltage requirements.

Lower-Current Alternative:

TIP30CG reduces current capacity to 1 A while maintaining 100 V voltage rating and 2 W power dissipation. This part is appropriate only for applications with current requirements not exceeding 1 A.

Frequently Asked Questions (FAQ)

Q: Can TIP32CG directly replace TIP32CTSTU?

A: Yes. TIP32CG is a direct substitute with identical electrical specifications (100 V, 3 A, 2 W) and TO-220-3 package compatibility. Both are PNP transistors with matching saturation voltage and current gain characteristics. TIP32CG is an active product with superior inventory availability.

Q: What is the difference between TIP32C and TIP32CG?

A: Both parts share identical electrical ratings and package type. TIP32C is manufactured by STMicroelectronics while TIP32CG is manufactured by onsemi. TIP32C offers higher inventory levels (45,550 units) and carries ROHS3 compliance certification. Selection between these parts depends on supply chain requirements and compliance specifications.

Q: Can BD242CG be used in place of TIP32CTSTU?

A: BD242CG is electrically compatible for voltage (100 V) and current (3 A) requirements. However, BD242CG provides significantly higher power dissipation (40 W versus 2 W) and different saturation voltage characteristics (1.2V @ 600mA, 3A versus 1.2V @ 375mA, 3A). BD242CG is suitable as a substitute when enhanced thermal performance is beneficial or required, but the higher power rating introduces no functional incompatibility.

Q: Is TIP30CG a suitable substitute?

A: TIP30CG is not a direct substitute due to reduced current capacity (1 A maximum versus 3 A). TIP30CG is appropriate only for applications where collector current does not exceed 1 A. Voltage rating (100 V) and power dissipation (2 W) remain compatible.

Q: Why is TIP32G not recommended as a primary substitute?

A: TIP32G operates at 40 V maximum collector-emitter breakdown voltage, compared to 100 V for TIP32CTSTU. While current capacity (3 A) and power rating (2 W) match, the reduced voltage rating restricts TIP32G to lower-voltage applications. TIP32G is suitable only when circuit voltage requirements do not exceed 40 V.

Q: What is the significance of the TO-220AB package variant in TIP32C-BP?

A: TIP32C-BP uses TO-220AB packaging, a variant of the standard TO-220-3 package. Both variants are mechanically and electrically compatible for through-hole mounting applications. The AB designation indicates specific lead configuration. Verify PCB footprint compatibility before selection.

Q: Can BD912 replace TIP32CTSTU in all applications?

A: BD912 maintains 100 V voltage compatibility and exceeds current capacity (15 A versus 3 A) and power dissipation (90 W versus 2 W). BD912 is electrically compatible for applications requiring the TIP32CTSTU ratings. However, BD912 is RoHS non-compliant, which may restrict use in regulated industries or applications with RoHS compliance requirements. Additionally, BD912 exhibits different saturation voltage characteristics (3V @ 2.5A, 10A).

Q: What inventory considerations apply to substitute selection?

A: TIP32C (STMicroelectronics) offers the highest inventory at 45,550 units. TIP32CG (onsemi) provides 20,100 units. TIP32C-BP (Micro Commercial Co) stocks 4,568 units. For applications requiring immediate availability, TIP32C is the preferred choice. For long-term supply chain stability, multiple qualified sources (onsemi, STMicroelectronics, Micro Commercial Co) provide redundancy.

Q: Are all substitute parts ROHS compliant?

A: TIP32CG, TIP32C, TIP32C-BP, BD242CG, TIP30CG, TIP32G, and TIP42CG carry ROHS3 compliance certification. BD912 is RoHS non-compliant. Applications requiring RoHS compliance must exclude BD912 from consideration.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message