MJD32CT4G Equivalent & Substitute Parts

Part Overview

The MJD32CT4G is an active-status PNP bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 3 A maximum collector current. The device is packaged in a Surface Mount DPAK (TO-252-3) configuration with a maximum power dissipation of 1.56 W and operates across a temperature range of -65°C to 150°C. This transistor is supplied in Cut Tape and Digi-Reel packaging formats.

Equivalent and substitute parts are identified when alternative manufacturers or packaging formats provide identical or compatible electrical and mechanical specifications, enabling design flexibility, supply chain alternatives, and inventory optimization without circuit redesign.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	100	V
Current - Collector (Ic) (Max)	3	A
Vce Saturation (Max) @ Ib, Ic	1.2 @ 375mA, 3A	V
Current - Collector Cutoff (Max)	50	µA
DC Current Gain (hFE) (Min) @ Ic, Vce	10 @ 3A, 4V	—
Power - Max	1.56	W
Frequency - Transition	3	MHz
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the MJD32CT4G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Transistor Type: PNP
Voltage - Collector Emitter Breakdown (Max): 100 V
Current - Collector (Ic) (Max): 3 A
Vce Saturation (Max) @ Ib, Ic: 1.2 V @ 375mA, 3A
DC Current Gain (hFE) (Min) @ Ic, Vce: 10 @ 3A, 4V
Frequency - Transition: 3 MHz
Mounting Type: Surface Mount
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Variations:

Manufacturer identity (onsemi, Diodes Incorporated, Micro Commercial Co, STMicroelectronics)
Packaging format (Cut Tape & Digi-Reel, Tube, Tape & Reel)
Power dissipation rating (1.25 W to 15 W, provided all other parameters match)
Current - Collector Cutoff (Max) (1 µA to 50 µA)
Operating temperature minimum (−65°C to −55°C)

Substitute parts are grouped by direct manufacturer equivalence and parametric equivalence classifications based on electrical performance alignment and mechanical compatibility.

Parameter Comparison

Parameter	MJD32CT4G (onsemi)	NJVMJD32CG (onsemi)	MJD32CRLG (onsemi)	MJD32C-13 (Diodes Inc.)	MJD32C-TP (Micro Commercial)	MJD32CQ-13 (Diodes Inc.)	MJD32CT4-A (STMicroelectronics)
Transistor Type	PNP	PNP	PNP	PNP	PNP	PNP	PNP
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	100 V	100 V	100 V	100 V	100 V
Current - Collector (Ic) (Max)	3 A	3 A	3 A	3 A	3 A	3 A	3 A
Vce Saturation (Max) @ Ib, Ic	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A	1.2V @ 375mA, 3A
Current - Collector Cutoff (Max)	50 µA	50 µA	50 µA	1 µA	50 µA	1 µA	50 µA
DC Current Gain (hFE) (Min) @ Ic, Vce	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V	10 @ 3A, 4V
Power - Max	1.56 W	1.56 W	1.56 W	15 W	1.25 W	15 W	15 W
Frequency - Transition	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	—
Operating Temperature Range	-65 to 150°C	-65 to 150°C	-65 to 150°C	-55 to 150°C	150°C	-55 to 150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Packaging Format	Cut Tape & Digi-Reel	Tube	Cut Tape & Digi-Reel	Tape & Reel	Tape & Reel	Tape & Reel	Cut Tape & Digi-Reel
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment and ongoing manufacturer support. Selection among equivalent parts is determined by packaging format requirements and supply chain availability.

onsemi Direct Equivalents (MJD32CT4G, NJVMJD32CG, MJD32CRLG): These parts share identical electrical specifications and differ only in packaging format. NJVMJD32CG is supplied in Tube format, while MJD32CT4G and MJD32CRLG are supplied in Cut Tape & Digi-Reel format. All three maintain the full operating temperature range of -65°C to 150°C and identical power dissipation of 1.56 W.

Diodes Incorporated Alternatives (MJD32C-13, MJD32CQ-13): Both parts are supplied in Tape & Reel format and feature enhanced power dissipation ratings of 15 W. These parts exhibit lower collector cutoff current (1 µA versus 50 µA) and operate across a narrower temperature minimum of -55°C to 150°C. Electrical performance at rated operating points remains equivalent.

Micro Commercial Co Alternative (MJD32C-TP): Supplied in Tape & Reel format with power dissipation of 1.25 W and maximum operating temperature specification of 150°C (without minimum temperature specification). Collector cutoff current matches the primary part at 50 µA.

STMicroelectronics Alternative (MJD32CT4-A): Supplied in Cut Tape & Digi-Reel format with enhanced power dissipation of 15 W. Operating temperature specification is 150°C (without minimum temperature specification). Transition frequency is not specified for this variant.

Selection should prioritize parts with matching operating temperature ranges when designs operate at temperature extremes. Enhanced power dissipation ratings (15 W variants) provide thermal margin in high-dissipation applications without affecting electrical performance at rated conditions.

Frequently Asked Questions (FAQ)

Q: Can MJD32C-13 or MJD32CQ-13 replace MJD32CT4G in all applications?

A: Yes, from an electrical performance standpoint. Both parts meet all mandatory electrical parameters. However, the operating temperature minimum is -55°C instead of -65°C. If the application operates below -55°C, the primary part or onsemi equivalents (NJVMJD32CG, MJD32CRLG) are required.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Cut Tape & Digi-Reel format provides individual component strips suitable for manual handling and automated pick-and-place equipment. Tape & Reel format supplies components on continuous reels optimized for high-volume automated assembly. Both formats are mechanically compatible with standard surface mount assembly equipment.

Q: Why do some substitute parts have higher power dissipation ratings (15 W versus 1.56 W)?

A: Power dissipation rating reflects the maximum thermal capability of the device package under specified conditions. Higher ratings indicate enhanced thermal performance but do not change electrical behavior at rated operating points. Both ratings are suitable for the MJD32CT4G application; higher ratings provide additional thermal margin.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and Moisture Sensitivity Level 1 (Unlimited), matching the primary part's compliance profile.

Q: Can MJD32CT4-A be used if transition frequency is not specified?

A: The MJD32CT4-A datasheet does not provide a transition frequency specification, whereas the primary part specifies 3 MHz. If transition frequency is a critical design parameter, parts with explicit 3 MHz specifications (MJD32CT4G, NJVMJD32CG, MJD32CRLG, MJD32C-13, MJD32C-TP, MJD32CQ-13) are preferred.

Q: What is the significance of collector cutoff current differences (1 µA versus 50 µA)?

A: Collector cutoff current represents leakage in the off state. Lower values (1 µA) indicate reduced leakage. Both specifications are within acceptable ranges for standard switching applications. Applications requiring minimal leakage current should select parts with 1 µA ratings (MJD32C-13, MJD32CQ-13).

Q: Are all substitute parts available in the same inventory quantities?

A: No. Inventory levels vary by part number and supplier. MJD32CQ-13 (30,400 pcs) and MJD32CT4G (37,200 pcs) have the highest availability. Specific inventory requirements should be confirmed with the component supplier.

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