MPS751ZL1G Equivalent & Substitute Parts

Part Overview

The MPS751ZL1G is a PNP bipolar junction transistor manufactured by onsemi, rated for 60V collector-emitter breakdown voltage and 2A maximum collector current. This device is packaged in a TO-92 through-hole configuration and is designed for general-purpose switching and amplification applications. The MPS751ZL1G is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. Active alternatives with identical or compatible electrical specifications are available from multiple manufacturers.

Substiute Parts

MPS751ZL1G

onsemiIn Stock: 1980MPS751ZL1G Datasheet

Current PartRFQ

MPS751

Fairchild SemiconductorIn Stock: 1377MPS751 Datasheet

DirectRFQ

MPS751-D26Z

onsemiIn Stock: 35297MPS751-D26Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPS751ZL1G is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor polarity (PNP)
• Maximum collector current (2 A)
• Collector-emitter breakdown voltage (60 V)
• Saturation voltage characteristics (500 mV @ 200mA, 2A)
• Collector cutoff current (100 nA maximum)
• Power dissipation rating (625 mW)
• Transition frequency (75 MHz)
• Through-hole mounting configuration
• TO-92-3 package compatibility

Allowable Variations:

• DC current gain (hFE) may vary within manufacturer specifications
• Operating temperature maximum may differ (150°C is acceptable)
• Product status transition from obsolete to active
• Packaging format (bulk, cut tape, or reel)
• Compliance certifications (RoHS, REACH status)

The substitute parts listed below meet all critical electrical parameters and physical package requirements for direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

MPS751 (Fairchild Semiconductor): This part is a direct electrical equivalent with identical specifications across all critical parameters. The device is in active production status, ensuring long-term availability and supply chain stability. The part carries the same ECCN classification (EAR99) and meets international trade compliance requirements. Selection of this part is appropriate for applications requiring a proven equivalent from an alternative manufacturer.

MPS751-D26Z (onsemi): This part is manufactured by the same original equipment manufacturer as the MPS751ZL1G and maintains electrical equivalence across all critical parameters. The device is in active production status and is available in cut tape packaging format, supporting high-volume manufacturing workflows. The part is RoHS3 compliant and carries REACH unaffected status. The DC current gain specification differs at the test point (40 @ 2A, 2V versus 75 @ 1A, 2V), but both values fall within acceptable operating ranges for PNP transistor applications. Selection of this part provides continuity with the original manufacturer while ensuring current product availability.

Both substitute parts are suitable for direct replacement in applications currently using the MPS751ZL1G, provided that circuit designs do not depend on the specific DC current gain values at the original test conditions.

Frequently Asked Questions (FAQ)

Q: Can the MPS751 (Fairchild) be used as a direct replacement for the MPS751ZL1G?

A: Yes. The MPS751 from Fairchild Semiconductor meets all critical electrical specifications including collector current (2 A), breakdown voltage (60 V), saturation voltage (500 mV), power rating (625 mW), and transition frequency (75 MHz). Both devices use identical TO-92-3 through-hole packaging. The part is in active production status.

Q: What is the difference between the MPS751-D26Z and the MPS751ZL1G?

A: The MPS751-D26Z is electrically equivalent across all critical parameters. The primary differences are: (1) product status—MPS751-D26Z is active while MPS751ZL1G is obsolete; (2) packaging format—MPS751-D26Z is supplied in cut tape while MPS751ZL1G was supplied in bulk; (3) DC current gain test point—MPS751-D26Z specifies 40 @ 2A, 2V while MPS751ZL1G specifies 75 @ 1A, 2V. Both specifications are within acceptable ranges for general-purpose PNP transistor applications.

Q: Are there any package compatibility issues when substituting these parts?

A: No. All three parts use the TO-92-3 (TO-226) through-hole package with formed leads. Physical dimensions and pin configurations are identical, allowing direct board-level substitution without layout modifications.

Q: Does the DC current gain difference between MPS751-D26Z and MPS751ZL1G affect circuit performance?

A: The DC current gain specifications are measured at different operating points. Both values are within the acceptable range for PNP transistor operation. Circuit designs that do not depend on specific gain values at particular test conditions will function identically with either part. Applications requiring precise gain matching should verify performance through circuit simulation or prototype testing.

Q: What is the compliance status of these substitute parts?

A: MPS751 (Fairchild) carries EAR99 classification. MPS751-D26Z carries EAR99 classification and is RoHS3 compliant with REACH unaffected status. Both parts meet international trade and environmental compliance requirements.

Q: Is the MPS751ZL1G still available for procurement?

A: The MPS751ZL1G is classified as obsolete. However, inventory remains available from authorized distributors. For new designs or long-term production requirements, selection of active alternatives (MPS751 or MPS751-D26Z) is recommended to ensure supply chain continuity.