SCHURTER 0070.1411.B1 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0070.1411.B1 is a 22V 250A varistor in a through-hole disc 5mm package, designed for transient voltage suppression applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Key Parameters

Parameter	Value
Varistor Voltage (Typ)	22 V
Current - Surge	250 A
Maximum AC Volts	14 V
Maximum DC Volts	18 V
Energy	0.7 J
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Through Hole
Package / Case	Disc 5mm
Number of Circuits	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 0070.1411.B1 is determined by the following critical parameters:

Varistor voltage rating (20V minimum to 24V maximum range)
Surge current capacity (250 A minimum)
Energy dissipation capability (0.7 J minimum)
Maximum AC and DC voltage ratings (14 V AC / 18 V DC minimum)
Through-hole mounting configuration
Operating temperature compatibility
RoHS3 compliance status

The Panasonic ERZ-V05D220 meets all electrical specifications within the allowed parameter ranges. Physical package dimensions differ (7mm disc versus 5mm disc), which may require mechanical evaluation for specific applications but does not affect electrical substitution eligibility.

Parameter Comparison

Parameter	SCHURTER 0070.1411.B1	Panasonic ERZ-V05D220	Match Status
Varistor Voltage (Min)	20 V	20 V	Equivalent
Varistor Voltage (Typ)	22 V	22 V	Equivalent
Varistor Voltage (Max)	24 V	24 V	Equivalent
Current - Surge	250 A	250 A	Equivalent
Maximum AC Volts	14 V	14 V	Equivalent
Maximum DC Volts	18 V	18 V	Equivalent
Energy	0.7 J	0.7 J	Equivalent
Number of Circuits	1	1	Equivalent
Capacitance @ 1 kHz	2000 pF	1500 pF	Within tolerance
Operating Temperature (Min)	-40°C	-40°C	Equivalent
Operating Temperature (Max)	125°C	85°C	SCHURTER rated higher
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Disc 5mm	Disc 7mm	Different dimensions
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent

Engineering Selection Recommendations

The Panasonic ERZ-V05D220 is an active product with full ROHS3 compliance and REACH unaffected status, providing supply chain continuity for the obsolete SCHURTER 0070.1411.B1. All critical electrical parameters—varistor voltage, surge current, energy dissipation, and voltage ratings—are identical across both components.

The primary consideration is the physical package dimension difference: the Panasonic substitute uses a 7mm disc package compared to the original 5mm disc. This requires verification of mechanical fit within the target application's PCB layout and enclosure constraints. The operating temperature maximum of 85°C for the Panasonic part is lower than the SCHURTER specification of 125°C; applications requiring sustained operation above 85°C must retain the original component or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic ERZ-V05D220 directly replace the SCHURTER 0070.1411.B1 in all applications?

A: Electrical substitution is valid for all applications within the specified parameter ranges. Physical package dimensions differ (7mm versus 5mm disc), requiring mechanical verification for PCB layout compatibility. The lower maximum operating temperature of the Panasonic part (85°C versus 125°C) must be evaluated against application thermal requirements.

Q: What are the critical parameters that define substitution eligibility?

A: Varistor voltage rating (20V–24V range), surge current capacity (250 A), energy dissipation (0.7 J), maximum AC/DC voltage ratings (14 V AC / 18 V DC), through-hole mounting configuration, and RoHS3 compliance status. All these parameters are matched between the two components.

Q: Does the capacitance difference (2000 pF versus 1500 pF) affect substitution?

A: The capacitance values are within acceptable tolerance for varistor applications. The 500 pF difference does not alter the fundamental transient voltage suppression function and is within normal manufacturing variation for this component category.

Q: Are there any compliance or certification concerns with using the Panasonic substitute?

A: Both components are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution in regulated applications.

Q: What should be verified before implementing the Panasonic substitute in production?

A: Confirm mechanical fit of the 7mm disc package within the PCB footprint and enclosure. Verify that the application's maximum operating temperature does not exceed 85°C. Validate electrical performance through standard component qualification testing if required by your quality procedures.

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