V20E175 Equivalent & Substitute Parts

Part Overview

The V20E175 is a 270V 10kA varistor manufactured by Littelfuse Inc. in the UltraMOV™ series, designed for transient voltage suppression applications. This component features a through-hole disc package (20mm) with 1 circuit configuration and is rated for surge currents up to 10kA with 135J energy absorption capability.

The V20E175 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value
Maximum AC Volts	175 V
Maximum DC Volts	225 V
Varistor Voltage (Typical)	270 V
Current - Surge	10 kA
Energy	135 J
Number of Circuits	1
Mounting Type	Through Hole
Package / Case	Disc 20mm
Operating Temperature Range	-55°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the V20E175 is determined by the following critical parameters:

Voltage Rating: Maximum AC volts (175V), maximum DC volts (225V), and varistor voltage typical value (270V) must match or remain within acceptable tolerance ranges
Surge Current Capability: Current rating of 10kA is a primary selection criterion
Circuit Configuration: Single circuit requirement must be maintained
Mounting Type: Through-hole mounting is mandatory for PCB compatibility
Package Compatibility: Physical form factor (disc package) must accommodate existing board layouts
Compliance Standards: RoHS3 compliance status ensures regulatory alignment

Two substitute parts meet these criteria:

V20E175P (Littelfuse Inc.) - Direct equivalent with identical electrical specifications and active product status
ERZ-V20D271 (Panasonic Electronic Components) - Cross-manufacturer substitute with equivalent electrical performance and active availability

Parameter Comparison

Parameter	V20E175	V20E175P	ERZ-V20D271
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Panasonic Electronic Components
Maximum AC Volts	175 V	175 V	175 V
Maximum DC Volts	225 V	225 V	225 V
Varistor Voltage (Min)	243 V	243 V	247 V
Varistor Voltage (Typ)	270 V	270 V	270 V
Varistor Voltage (Max)	297 V	297 V	303 V
Current - Surge	10 kA	10 kA	10 kA
Energy	135 J	135 J	190 J
Number of Circuits	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 20mm	Disc 20mm	Disc 21.5mm
Operating Temperature Range	-55°C ~ 85°C	-55°C ~ 85°C	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

V20E175P is the primary substitute option. As an active product from the original manufacturer (Littelfuse Inc.), it provides identical electrical specifications, matching voltage ratings, surge current capability, and energy absorption. The component maintains the same operating temperature range (-55°C ~ 85°C) and package form factor (Disc 20mm), ensuring direct compatibility with existing designs. ROHS3 compliance is maintained.

ERZ-V20D271 serves as a secondary cross-manufacturer alternative. This Panasonic component meets all critical electrical requirements with matching voltage ratings and 10kA surge current capability. The varistor voltage range remains within acceptable tolerance (247V-303V vs. 243V-297V). Enhanced energy absorption (190J vs. 135J) provides additional margin. The primary consideration is the slightly larger package dimension (Disc 21.5mm vs. 20mm), which requires verification of PCB layout compatibility. Operating temperature range is narrower (-40°C ~ 85°C), which may be acceptable depending on application requirements. ROHS3 compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can V20E175P be used as a direct replacement for V20E175?

A: Yes. V20E175P is functionally equivalent with identical electrical specifications, voltage ratings, surge current capability, and package dimensions. The primary difference is product status: V20E175P is active while V20E175 is obsolete.

Q: What is the key difference between V20E175P and ERZ-V20D271?

A: Both parts meet the core electrical requirements (175V AC, 225V DC, 270V typical varistor voltage, 10kA surge current). The ERZ-V20D271 offers higher energy absorption (190J vs. 135J) but has a slightly larger package diameter (21.5mm vs. 20mm) and narrower operating temperature range (-40°C to 85°C vs. -55°C to 85°C).

Q: Is the 0.5mm package size difference between V20E175P and ERZ-V20D271 significant?

A: Package compatibility depends on PCB layout design. The V20E175P maintains the original 20mm disc form factor, ensuring direct fit. The ERZ-V20D271 with 21.5mm diameter requires verification that the mounting footprint and surrounding component placement accommodate the larger dimension.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both V20E175P and ERZ-V20D271 are ROHS3 compliant, maintaining regulatory alignment with the original V20E175.

Q: Which substitute should be selected for new designs?

A: V20E175P is recommended for designs requiring direct compatibility with existing specifications and package constraints. ERZ-V20D271 is suitable when enhanced energy absorption (190J) is beneficial and package size verification confirms PCB compatibility.

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