V42MLA1206A Equivalent & Substitute Parts

Part Overview

The V42MLA1206A is a 53 V, 180 A varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in surface mount applications. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The varistor operates across a temperature range of -40°C to 125°C and is housed in a 1206 (3216 Metric) package format.

Substiute Parts

V42MLA1206A

Littelfuse Inc.In Stock: 1114V42MLA1206A Datasheet

Current PartRFQ

V42MLA1206NA

Littelfuse Inc.In Stock: 730V42MLA1206NA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V42MLA1206A is determined by strict equivalence across the following electrical and mechanical parameters:

• Varistor voltage range: 46 V (minimum) to 60 V (maximum), with 53 V typical
• Surge current rating: 180 A
• Maximum DC voltage: 42 V
• Maximum AC voltage: 30 V
• Energy dissipation: 0.8 J
• Package format: 1206 (3216 Metric) surface mount
• Number of circuits: 1
• Operating temperature: -40°C to 125°C
• Capacitance: 425 pF @ 1 MHz

Parts meeting all these criteria are classified as direct equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The V42MLA1206NA is the direct equivalent substitute for the V42MLA1206A. Both components are manufactured by Littelfuse Inc. within the MLA series and share identical electrical specifications and package format. The primary distinction is product status: V42MLA1206A is obsolete, while V42MLA1206NA is active and currently in production.

Both parts maintain ROHS3 compliance and carry identical moisture sensitivity ratings (MSL 1). The V42MLA1206NA is the recommended selection for new designs and ongoing production requirements due to its active status and confirmed supply availability.

Frequently Asked Questions (FAQ)

Q: Can V42MLA1206NA be used as a direct replacement for V42MLA1206A?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including varistor voltage (53 V typical), surge current (180 A), package format (1206), and operating temperature range (-40°C to 125°C). No circuit modifications are required.

Q: What is the difference between V42MLA1206A and V42MLA1206NA?

A: The components are functionally equivalent. The primary difference is product status: V42MLA1206A is obsolete, while V42MLA1206NA is active. The suffix "NA" indicates bulk packaging, whereas the original part number does not specify packaging type.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry identical moisture sensitivity levels (MSL 1), and share the same ECCN and HTSUS classifications.

Q: Can this varistor be used in applications requiring different voltage ratings?

A: No. Substitution is limited to parts with identical varistor voltage specifications (46 V minimum to 60 V maximum, 53 V typical). Deviations from these parameters require circuit redesign and are outside the scope of direct equivalency.

Q: What packaging options are available?

A: V42MLA1206A is available in standard packaging, while V42MLA1206NA is supplied in bulk packaging. Both use the 1206 (3216 Metric) surface mount package format.