MJD44H11TM Equivalent & Substitute Parts

Part Overview

The MJD44H11TM is an NPN bipolar junction transistor manufactured by onsemi, rated for 80V collector-emitter breakdown voltage and 8A maximum collector current in a DPAK surface mount package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical performance across collector current, voltage ratings, and thermal characteristics while accommodating packaging and sourcing constraints.

Substiute Parts

MJD44H11TM

onsemiIn Stock: 2594MJD44H11TM Datasheet

Current PartRFQ

MJD44H11T4

STMicroelectronicsIn Stock: 32912MJD44H11T4 Datasheet

DirectRFQ

MJD44H11T4-A

STMicroelectronicsIn Stock: 2297MJD44H11T4-A Datasheet

DirectRFQ

MJD44H11T4G

onsemiIn Stock: 157873MJD44H11T4G Datasheet

DirectRFQ

NJVMJD44H11G

onsemiIn Stock: 996NJVMJD44H11G Datasheet

DirectRFQ

NJVMJD44H11T4G-VF01

onsemiIn Stock: 928NJVMJD44H11T4G-VF01 Datasheet

DirectRFQ

MJD44H11G

onsemiIn Stock: 109409MJD44H11G Datasheet

SimilarRFQ

MJD44H11RLG

onsemiIn Stock: 35061MJD44H11RLG Datasheet

SimilarRFQ

NJVMJD45H11G

onsemiIn Stock: 2290NJVMJD45H11G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MJD44H11TM is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: NPN
• Maximum Collector Current (Ic): 8A
• Collector-Emitter Breakdown Voltage: 80V
• Vce Saturation: 1V @ 400mA, 8A
• DC Current Gain (hFE): 40 @ 4A, 1V minimum
• Package: TO-252-3 DPAK surface mount
• Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Substitutes (Electrical & Mechanical Equivalence): Parts maintaining identical electrical specifications and DPAK packaging. These include MJD44H11T4, MJD44H11T4-A, MJD44H11T4G, MJD44H11G, MJD44H11RLG, NJVMJD44H11G, and NJVMJD44H11T4G-VF01. All share the MJD44 base product number and meet the core electrical requirements.

Similar Parts (Different Transistor Type): NJVMJD45H11G is a PNP variant with equivalent voltage and current ratings but opposite polarity. This part is not a direct substitute for NPN applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

MJD44H11T4G and MJD44H11RLG are recommended as primary substitutes. Both are manufactured by onsemi, maintain active product status, and provide full electrical equivalence to the MJD44H11TM. MJD44H11T4G offers the highest inventory availability (157,800 units) and is supplied in Cut Tape & Digi-Reel packaging. MJD44H11RLG provides 35,000 units in Cut Tape & Digi-Reel format. Both parts are ROHS3 compliant and REACH unaffected.

MJD44H11G is an alternative onsemi substitute supplied in Tube packaging with 109,325 units available. This part is suitable for applications where tube packaging is acceptable.

Secondary Substitutes (STMicroelectronics):

MJD44H11T4 and MJD44H11T4-A are STMicroelectronics equivalents with identical electrical specifications. MJD44H11T4 provides 32,900 units in Cut Tape & Digi-Reel packaging. MJD44H11T4-A offers 2,248 units in the same packaging format. Both are ROHS3 compliant and active products. Selection between onsemi and STMicroelectronics variants depends on supply chain requirements and existing vendor relationships.

Automotive-Grade Alternative:

NJVMJD44H11G is an automotive-qualified variant (AEC-Q101) supplied in Tube packaging with 945 units available. This part is suitable for automotive applications requiring formal qualification documentation.

Obsolete Alternatives (Not Recommended for New Designs):

NJVMJD44H11T4G-VF01 is classified as obsolete and should not be selected for new production designs despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can MJD44H11T4 from STMicroelectronics directly replace MJD44H11TM from onsemi?

A: Yes. Both parts share identical electrical specifications: 8A maximum collector current, 80V breakdown voltage, 1V saturation voltage at rated conditions, and 40 minimum hFE. Both use TO-252-3 DPAK surface mount packaging. The primary difference is manufacturer and product status (MJD44H11T4 is active).

Q: What is the difference between MJD44H11T4G and MJD44H11G?

A: Both parts are onsemi NPN transistors with identical electrical ratings and DPAK packaging. The primary difference is packaging format: MJD44H11T4G is supplied in Cut Tape & Digi-Reel, while MJD44H11G is supplied in Tube. Selection depends on assembly line requirements and tape-and-reel versus tube handling capabilities.

Q: Is NJVMJD44H11G suitable for non-automotive applications?

A: Yes. NJVMJD44H11G meets all electrical requirements for the MJD44H11TM and is suitable for any application requiring NPN 80V/8A performance. The automotive qualification (AEC-Q101) is an additional certification that does not restrict use in non-automotive designs.

Q: Why is NJVMJD44H11T4G-VF01 listed as a substitute if it is obsolete?

A: NJVMJD44H11T4G-VF01 is electrically equivalent and may be available in existing inventory. However, for new production designs, active alternatives such as MJD44H11T4G or MJD44H11RLG should be selected to ensure long-term supply continuity.

Q: Can NJVMJD45H11G replace MJD44H11TM?

A: No. NJVMJD45H11G is a PNP transistor, while MJD44H11TM is NPN. Polarity reversal makes this part unsuitable for direct substitution in NPN circuit applications.

Q: What packaging considerations apply when switching from MJD44H11TM to alternative parts?

A: All substitute parts use identical TO-252-3 DPAK surface mount packaging. Footprint and land pattern compatibility is maintained across all substitutes. Packaging format differences (Cut Tape & Digi-Reel versus Tube) affect handling and assembly processes but not PCB-level compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts (MJD44H11T4, MJD44H11T4-A, MJD44H11T4G, MJD44H11G, MJD44H11RLG, NJVMJD44H11G) are ROHS3 compliant. The original MJD44H11TM compliance status is not specified in available documentation.