MHP-TA6-9-72 Equivalent & Substitute Parts

Part Overview

The MHP-TA6-9-72 is a thermal cutoff (TCO) breaker manufactured by Littelfuse Inc., designed for AC/DC applications with a 12 A current rating and 72°C (162°F) functioning temperature. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued system design and maintenance applications. The substitute part maintains identical electrical and thermal specifications while offering improved availability through active product status.

Substiute Parts

MHP-TA6-9-72

Littelfuse Inc.In Stock: 834MHP-TA6-9-72 Datasheet

Current PartRFQ

MHP-TAM6-9-72

LittelfuseIn Stock: 18442MHP-TAM6-9-72 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MHP-TA6-9-72 is based on strict equivalence of the following critical parameters:

• Rated functioning temperature: 72°C (162°F)
• Reset temperature: 40°C (104°F)
• Current rating: 12 A
• Voltage rating (DC): 9 V
• Type classification: Thermal cutoff breaker
• Approval certifications: UL compliance

The substitute part MHP-TAM6-9-72 maintains all specified electrical and thermal characteristics while differing only in series designation (MHP-TAM vs. MHP-TA) and product status (active vs. obsolete). Both components are manufactured by Littelfuse Inc. and share identical functional parameters, making them electrically and mechanically interchangeable within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The MHP-TAM6-9-72 is the direct equivalent substitute for the obsolete MHP-TA6-9-72. Selection of the substitute part is justified by:

• Identical electrical specifications (12 A, 9 V DC, 72°C functioning temperature)
• Identical thermal characteristics (40°C reset temperature)
• Equivalent mechanical form factor (nonstandard package / case)
• Active product status ensuring continued availability and supply chain reliability
• Enhanced certification scope (cUL and UL approval vs. UL only)
• Full RoHS3 compliance maintained
• Equivalent moisture sensitivity rating

The substitute part is suitable for direct replacement in all applications where the MHP-TA6-9-72 was originally specified.

Frequently Asked Questions (FAQ)

Q: Are the MHP-TA6-9-72 and MHP-TAM6-9-72 electrically identical?

A: Yes. Both components share identical current rating (12 A), voltage rating (9 V DC), functioning temperature (72°C), and reset temperature (40°C). They are electrically equivalent for all specified operating conditions.

Q: Why does the substitute part have a different series designation?

A: The series change from MHP-TA to MHP-TAM reflects a product line evolution by Littelfuse Inc. The functional and electrical specifications remain unchanged, making the parts interchangeable.

Q: What is the difference in approval certifications?

A: The substitute part MHP-TAM6-9-72 carries both cUL and UL approvals, compared to UL approval only for the original part. This represents an expanded certification scope with no reduction in compliance.

Q: Can the MHP-TAM6-9-72 be used as a direct replacement in existing designs?

A: Yes. The substitute part maintains identical electrical, thermal, and mechanical specifications. No design modifications are required for substitution.

Q: Are there any packaging differences between the two parts?

A: The original part has unspecified packaging (-), while the substitute is supplied in bag packaging. This affects only handling and storage logistics, not functional compatibility.

Q: What is the inventory status of each part?

A: The MHP-TA6-9-72 (obsolete) has 812 pieces in stock. The MHP-TAM6-9-72 (active) has 18,414 pieces in stock, providing superior long-term availability.