Equivalent & Substitute Parts Reference for ERZ-E08B751CS

Part Overview

Panasonic Electronic Components ERZ-E08B751CS is a through-hole varistor designed for surge protection in AC and DC circuits. It supports a varistor voltage of 750 V (typical), a surge current rating of 3.5 kA, and comes in a disc 11.5 mm package. The product is currently Active with ROHS3 and REACH compliance. Identifying equivalent or substitute models is necessary for maintaining supply continuity, ensuring multi-source compatibility, and supporting long-term product designs within the specified electrical and mechanical constraints.

Key Parameters

Parameter	Value
Maximum AC Volts	460 V
Maximum DC Volts	615 V
Varistor Voltage (Min)	675 V
Varistor Voltage (Typ)	750 V
Varistor Voltage (Max)	825 V
Current - Surge	3.5 kA
Energy	100 J
Number of Circuits	1
Capacitance @ Frequency	130 pF @ 1 kHz
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Through Hole
Package / Case	Disc 11.5mm
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute selection for Panasonic ERZ-E08B751CS is based strictly on matching the following key parameters: Maximum AC Volts, Maximum DC Volts, Varistor Voltage range (Min/Typ/Max), Current - Surge, Energy, Number of Circuits, Capacitance @ Frequency, Operating Temperature, Mounting Type, Package / Case, RoHS Status, and REACH Status. Only parts with identical electrical, mechanical, and environmental compliance parameters are listed as direct substitutes.

Parameter Comparison

Manufacturer Part Number	Maximum AC Volts	Maximum DC Volts	Varistor Voltage (Min)	Varistor Voltage (Typ)	Varistor Voltage (Max)	Current - Surge	Energy	Number of Circuits	Capacitance @ Frequency	Operating Temperature	Mounting Type	Package / Case	RoHS Status	REACH Status
ERZ-E08B751CS	460 V	615 V	675 V	750 V	825 V	3.5 kA	100 J	1	130 pF @ 1 kHz	-40°C ~ 85°C (TA)	Through Hole	Disc 11.5mm	ROHS3 Compliant	REACH Unaffected
ERZ-E08A751	460 V	615 V	675 V	750 V	825 V	3.5 kA	100 J	1	130 pF @ 1 kHz	-40°C ~ 85°C (TA)	Through Hole	Disc 11.5mm	ROHS3 Compliant	REACH Unaffected

Engineering Selection Recommendations

Both ERZ-E08B751CS and ERZ-E08A751 are Active products, ROHS3 Compliant, and REACH Unaffected. Both parts provide identical electrical parameters, mechanical dimensions, and environmental ratings as specified in the documentation. Either part can be selected with consideration to inventory availability, as there are no differences based on compliance or certification status.

Frequently Asked Questions (FAQ)

Q1: What parameters are required to determine a substitute part for ERZ-E08B751CS?
A1: Substitute parts must match Maximum AC Volts, Maximum DC Volts, Varistor Voltage (Min/Typ/Max), Current - Surge, Energy, Number of Circuits, Capacitance @ Frequency, Operating Temperature, Mounting Type, Package / Case, RoHS Status, and REACH Status.

Q2: Can ERZ-E08A751 be used directly in place of ERZ-E08B751CS in the same PCB footprint?
A2: Yes, both ERZ-E08A751 and ERZ-E08B751CS use the same disc 11.5 mm package and through-hole mounting, ensuring footprint compatibility.

Q3: Are there any differences in environmental compliance between ERZ-E08B751CS and ERZ-E08A751?
A3: Both parts are ROHS3 Compliant and REACH Unaffected.

Q4: Is there any difference in surge current, maximum energy, or voltage protection performance between the two parts?
A4: All listed electrical parameters, including surge current, energy, and varistor voltage range, are identical for ERZ-E08B751CS and ERZ-E08A751.

Q5: What is the importance of matching the number of circuits and capacitance in a varistor substitution?
A5: Matching the number of circuits and capacitance ensures electrical compatibility and no deviation in signal path or suppression characteristics within the circuit design.

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