TMOV34S751M Equivalent & Substitute Parts

Part Overview

The TMOV34S751M is a 1.2 kV, 40 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in the TMOV® 34S series. This component is designed for surge protection applications requiring high energy dissipation in a square 34mm through-hole package with formed tabs and 3-lead configuration.

The TMOV34S751M is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

TMOV34S751M

Littelfuse Inc.In Stock: 940TMOV34S751M Datasheet

Current PartRFQ

TMOV34S751MP

Littelfuse Inc.In Stock: 1240TMOV34S751MP Datasheet

DirectRFQ

TMOV34S751MPX2696

Littelfuse Inc.In Stock: 929TMOV34S751MPX2696 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMOV34S751M are identified based on strict electrical and mechanical parameter matching within the TMOV® 34S series. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Varistor voltage range: 1.08 kV – 1.32 kV (typical 1.2 kV)
• Surge current rating: 40 kA
• Energy dissipation: 1200 J
• Maximum AC volts: 750 V
• Maximum DC volts: 970 V
• Capacitance @ 1 MHz: 1800 pF
• Operating temperature range: -55°C to 85°C

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Package configuration: Square 34mm, Formed Tabs, 3-Lead
• Number of circuits: 1
• Thermal protection feature: Present

All identified substitutes maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both TMOV34S751MP and TMOV34S751MPX2696 are direct functional equivalents to the obsolete TMOV34S751M, with identical electrical and mechanical specifications across all critical parameters.

TMOV34S751MP is the primary substitute. This part is in active production status and carries ROHS3 compliance certification, making it suitable for new designs and applications subject to RoHS regulations.

TMOV34S751MPX2696 is a parametric equivalent with identical electrical and mechanical characteristics. This part is also in active production status with ROHS3 compliance and REACH unaffected status, providing an alternative source option.

Selection between the two active substitutes should be based on procurement availability, packaging requirements (both specified as Bulk), and supply chain considerations. Both parts are electrically and mechanically interchangeable with the original TMOV34S751M.

Frequently Asked Questions (FAQ)

Q: Can TMOV34S751MP and TMOV34S751MPX2696 be used interchangeably with TMOV34S751M?

A: Yes. Both substitute parts maintain identical varistor voltage ratings (1.08 kV – 1.32 kV typical 1.2 kV), surge current capacity (40 kA), energy dissipation (1200 J), and mechanical package configuration (square 34mm through-hole with formed tabs). Direct substitution is electrically and mechanically valid.

Q: What is the difference between TMOV34S751MP and TMOV34S751MPX2696?

A: Both parts are parametrically identical in all electrical and mechanical specifications. The primary differences are product status (both active), RoHS compliance (both ROHS3 compliant), and REACH status (TMOV34S751MPX2696 is REACH unaffected). Selection should be based on availability and supply chain requirements.

Q: Why is the original TMOV34S751M obsolete?

A: The TMOV34S751M is classified as obsolete by the manufacturer. The active substitutes TMOV34S751MP and TMOV34S751MPX2696 provide continued access to the same electrical and mechanical specifications with improved compliance certifications.

Q: Are there any compliance differences between the original part and substitutes?

A: Yes. The original TMOV34S751M is RoHS non-compliant. Both substitute parts (TMOV34S751MP and TMOV34S751MPX2696) are ROHS3 compliant, making them suitable for applications requiring RoHS certification.

Q: Can these parts be used in new product designs?

A: Yes. TMOV34S751MP and TMOV34S751MPX2696 are in active production status and carry current compliance certifications (ROHS3). Both are suitable for new designs requiring 1.2 kV, 40 kA varistor protection in a square 34mm through-hole package.

Q: What packaging options are available for the substitute parts?

A: Both TMOV34S751MP and TMOV34S751MPX2696 are supplied in Bulk packaging. Packaging specifications are identical between the two substitutes.