TIP32ATU Equivalent & Substitute Parts

Part Overview

The TIP32ATU is a PNP bipolar junction transistor manufactured by onsemi, rated for 60 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, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The TIP32ATU remains functionally available through existing inventory; however, active substitute parts ensure long-term supply chain continuity and access to current manufacturing support.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) Max	3	A
Voltage - Collector Emitter Breakdown (Max)	60	V
Vce Saturation (Max) @ Ib, Ic	1.2 @ 375mA, 3A	V
Current - Collector Cutoff (Max)	200	µA
DC Current Gain (hFE) Min @ Ic, Vce	10 @ 3A, 4V	—
Power - Max	2	W
Frequency - Transition	3	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the TIP32ATU is determined by strict equivalence across the following critical parameters:

Direct Substitution Criteria:

Transistor type: PNP
Maximum collector current: 3 A
Maximum collector-emitter breakdown voltage: ≥ 60 V
Vce saturation: 1.2 V @ 375mA, 3A
DC current gain (hFE): ≥ 10 @ 3A, 4V
Power dissipation: 2 W
Transition frequency: 3 MHz
Package: TO-220-3 through-hole
RoHS3 compliance

Substitute Part Categories:

Direct Equivalent (Identical Electrical Specifications): TIP32AG meets all electrical parameters of the TIP32ATU with identical voltage and current ratings. The primary distinction is product status: TIP32AG is active, providing ongoing manufacturing support and supply availability.

Functional Equivalent (Reduced Voltage Rating): TIP32G operates at 40 V maximum collector-emitter breakdown voltage, compared to the TIP32ATU's 60 V rating. This part is suitable for applications where the circuit voltage requirement does not exceed 40 V. All other electrical parameters remain equivalent.

Parameter Comparison

Parameter	TIP32ATU (Main)	TIP32AG (Direct)	TIP32G (Functional)
Transistor Type	PNP	PNP	PNP
Current - Collector (Ic) Max	3 A	3 A	3 A
Voltage - Collector Emitter Breakdown (Max)	60 V	60 V	40 V
Vce Saturation (Max) @ Ib, Ic	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A
Current - Collector Cutoff (Max)	200 µA	300 µA	300 µA
DC Current Gain (hFE) Min @ Ic, Vce	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V
Power - Max	2 W	2 W	2 W
Frequency - Transition	3 MHz	3 MHz	3 MHz
Operating Temperature (TJ)	150°C	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TIP32AG Selection: TIP32AG is the direct equivalent for TIP32ATU applications. This part maintains identical electrical specifications across all rated parameters while offering active product status. TIP32AG is suitable for direct replacement in existing designs without circuit modification. Both parts are ROHS3 compliant and carry identical REACH and ECCN classifications.

TIP32G Selection: TIP32G is applicable to applications where the maximum circuit voltage does not exceed 40 V. This part provides functional equivalence for lower-voltage designs while maintaining identical current, power, and frequency characteristics. TIP32G is active and ROHS3 compliant. Circuit voltage verification is required prior to substitution.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original TIP32ATU specification.

Frequently Asked Questions (FAQ)

Q: Can TIP32AG be used as a direct replacement for TIP32ATU? A: Yes. TIP32AG is electrically identical to TIP32ATU across all rated parameters, including 60 V breakdown voltage, 3 A collector current, and 2 W power dissipation. Both parts use TO-220-3 through-hole packaging. The primary difference is product status: TIP32AG is active, while TIP32ATU is obsolete.

Q: What is the key difference between TIP32AG and TIP32G? A: The maximum collector-emitter breakdown voltage differs: TIP32AG is rated for 60 V, while TIP32G is rated for 40 V. All other electrical parameters are identical. TIP32G is suitable only for circuits where the maximum applied voltage does not exceed 40 V.

Q: Are there any package differences between these parts? A: All three parts use TO-220-3 through-hole packaging. No PCB layout or mechanical modifications are required when substituting between these parts.

Q: Do the substitute parts have different operating temperature ranges? A: TIP32ATU is rated to 150°C maximum junction temperature. TIP32AG and TIP32G both specify -65°C to 150°C operating range, providing extended low-temperature capability. This difference does not affect substitution in standard applications.

Q: Are RoHS and REACH compliance maintained with substitute parts? A: Yes. TIP32AG and TIP32G are both ROHS3 compliant and REACH unaffected, matching the compliance status of TIP32ATU.

Q: What is the collector cutoff current difference between TIP32ATU and the substitutes? A: TIP32ATU specifies 200 µA maximum collector cutoff current, while TIP32AG and TIP32G specify 300 µA. This parameter does not affect functional substitution in standard switching and amplification applications.

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