Equivalent & Substitute Parts for SCHURTER 0070.1441.A2

Part Overview

The SCHURTER 0070.1441.A2 is a 22 V, 1 kA transient voltage suppressor varistor in a 10mm disc form factor, designed for through-hole mounting applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The varistor provides transient voltage suppression across a single circuit with rated energy dissipation of 3.2 J and operates across the temperature range of -40°C to 125°C.

Key Parameters

Parameter	Value	Unit
Varistor Voltage (Typical)	22	V
Current - Surge	1	kA
Maximum AC Volts	14	V
Maximum DC Volts	18	V
Energy Dissipation	3.2	J
Number of Circuits	1	—
Mounting Type	Through Hole	—
Operating Temperature Range	-40 to 125	°C

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0070.1441.A2 is determined by strict equivalence across the following electrical and mechanical parameters:

Varistor voltage rating: 22 V (minimum 20 V, maximum 24 V)
Surge current capacity: 1 kA
Maximum AC voltage: 14 V
Maximum DC voltage: 18 V
Energy dissipation: 3.2 J
Number of circuits: 1
Mounting configuration: Through hole
Package form factor: Disc geometry

The Panasonic ERZ-V10D220 meets all specified electrical requirements and maintains through-hole disc mounting compatibility. Minor variations in physical dimensions (11.5mm versus 10mm) and operating temperature upper limit (85°C versus 125°C) are noted but do not affect functional substitution within the defined electrical parameters.

Parameter Comparison

Parameter	SCHURTER 0070.1441.A2	Panasonic ERZ-V10D220	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	1 kA	1 kA	Equivalent
Maximum AC Volts	14 V	14 V	Equivalent
Maximum DC Volts	18 V	18 V	Equivalent
Energy	3.2 J	3.2 J	Equivalent
Number of Circuits	1	1	Equivalent
Capacitance @ 1 kHz	6000 pF	11000 pF	Variation
Operating Temperature (Max)	125°C	85°C	Variation
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Disc 10mm	Disc 11.5mm	Variation
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent

Engineering Selection Recommendations

The Panasonic ERZ-V10D220 is a direct functional substitute for the obsolete SCHURTER 0070.1441.A2 based on electrical parameter equivalence. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The ERZ-V10D220 is classified as active product status, ensuring continued availability and supply chain stability compared to the obsolete SCHURTER part. The higher capacitance value (11000 pF versus 6000 pF at 1 kHz) may affect high-frequency circuit behavior and should be evaluated in frequency-sensitive applications. The reduced maximum operating temperature (85°C versus 125°C) requires verification that the application environment does not exceed this limit.

Physical package dimensions differ slightly (11.5mm disc versus 10mm disc), necessitating PCB layout review to confirm mechanical fit within existing through-hole mounting positions.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic ERZ-V10D220 be used as a direct replacement for the SCHURTER 0070.1441.A2?

A: Yes, the ERZ-V10D220 meets all specified electrical parameters including varistor voltage (22 V), surge current (1 kA), maximum AC/DC voltages, and energy dissipation. Both components use through-hole disc mounting. Physical package dimensions and operating temperature ranges differ and must be evaluated for your specific application.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) package diameter (11.5mm versus 10mm), (2) capacitance at 1 kHz (11000 pF versus 6000 pF), and (3) maximum operating temperature (85°C versus 125°C). All electrical suppression parameters are equivalent.

Q: Will the higher capacitance of the ERZ-V10D220 affect circuit performance?

A: The capacitance difference may impact high-frequency circuit behavior. Applications sensitive to capacitive loading or operating at frequencies above 1 kHz should be evaluated to confirm acceptable performance with the 11000 pF value.

Q: Is the reduced maximum operating temperature of the ERZ-V10D220 a concern?

A: The ERZ-V10D220 operates to 85°C maximum, compared to 125°C for the SCHURTER part. Verify that your application environment and component self-heating do not exceed this limit.

Q: Will the larger disc diameter (11.5mm) fit in existing PCB layouts?

A: PCB layout review is required. The 1.5mm increase in diameter may affect board space and through-hole positioning. Mechanical fit must be confirmed before implementation.

Q: Are both parts compliant with current regulations?

A: Yes, both the SCHURTER 0070.1441.A2 and Panasonic ERZ-V10D220 are ROHS3 compliant and REACH unaffected.

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