V175SM7 Equivalent & Substitute Parts

Part Overview

The V175SM7 is a 275 V varistor manufactured by Littelfuse, designed for transient voltage suppression in surface mount applications. This component operates within a maximum AC voltage of 175 V and maximum DC voltage of 225 V, with a surge current rating of 1.2 kA. The part is currently Active in product status and is RoHS3 compliant. Equivalent and substitute parts are identified when they maintain electrical performance within the specified parameter ranges and share compatible mechanical packaging.

Substiute Parts

V175SM7

LittelfuseIn Stock: 1133V175SM7 Datasheet

Current PartRFQ

PV175K4032R2

Bourns Inc.In Stock: 5622PV175K4032R2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V175SM7 is determined by equivalence in the following critical parameters:

• Maximum AC and DC voltage ratings (175 V AC / 225 V DC)
• Varistor voltage range (247–303 V minimum to maximum)
• Surge current capacity (1.2 kA)
• Single circuit configuration
• Surface mount MLCV package with 2-SMD, J-Lead form factor
• Operating temperature range (-40°C to 85°C)
• RoHS3 compliance and REACH unaffected status

The PV175K4032R2 from Bourns Inc. meets these substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The PV175K4032R2 is qualified as a direct substitute for the V175SM7 based on electrical parameter equivalence and mechanical compatibility. Both parts are Active in product status, RoHS3 compliant, and REACH unaffected. The varistor voltage specifications of the PV175K4032R2 fall within the acceptable tolerance band of the V175SM7, and both components share identical maximum voltage ratings, surge current capacity, and package configuration. Selection between these parts may be based on availability, lead time, or inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can the PV175K4032R2 be used as a direct replacement for the V175SM7?

A: Yes. Both parts meet the same electrical specifications for maximum AC/DC voltage, surge current, and operating temperature range. The package configuration and mounting type are identical, enabling direct substitution in surface mount applications.

Q: What is the significance of the varistor voltage tolerance between these parts?

A: The V175SM7 has a typical varistor voltage of 275 V with a range of 247–303 V. The PV175K4032R2 has a typical varistor voltage of 270 V with a range of 243–297 V. Both ranges overlap sufficiently to ensure functional equivalence in transient voltage suppression circuits.

Q: Are there differences in energy rating between these parts?

A: The V175SM7 is rated at 15 J, while the PV175K4032R2 is rated at 21 J. The higher energy rating of the substitute part does not prevent substitution and may provide additional margin in energy absorption applications.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the V175SM7 and PV175K4032R2 are RoHS3 compliant and REACH unaffected, meeting the same regulatory requirements.

Q: Are there any package or footprint differences?

A: No. Both parts use the 2-SMD, J-Lead package configuration with Surface Mount MLCV mounting type, ensuring identical PCB footprint compatibility.