Equivalent & Substitute Parts for YAGEO 112KD14

Part Overview

The YAGEO 112KD14 is a 1.1 kV, 4.5 kA metal oxide varistor (MOV) in a 14mm disc form factor, designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -40°C to 105°C and is classified as an active product. Alternative equivalent parts may be required due to inventory availability, supply chain considerations, or specific application requirements while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Varistor Voltage (Typical)	1.1	kV
Current - Surge	4.5	kA
Maximum AC Volts	680	V
Maximum DC Volts	895	V
Energy	213	J
Capacitance @ 1 kHz	180	pF
Operating Temperature Range	-40 to 105	°C
Mounting Type	Through Hole	-
Package / Case	Disc 14mm	-
Number of Circuits	1	-

Substitute Part Grouping Explanation

Substitution of the YAGEO 112KD14 is determined by strict equivalence across the following critical parameters:

Varistor Voltage Rating: Nominal 1.1 kV with tolerance range of 990 V (minimum) to 1.21 kV (maximum)
Surge Current Capacity: 4.5 kA
Maximum AC/DC Voltage Ratings: 680 V AC and 895 V DC
Mounting Configuration: Through-hole technology
Physical Package: 14mm disc form factor
Circuit Count: Single circuit (1)
Capacitance Specification: 180 pF at 1 kHz
Operating Temperature Range: -40°C to 105°C

The EPCOS - TDK Electronics B72214S0681K101 meets all these critical parameters and qualifies as a parametric equivalent substitute.

Parameter Comparison

Parameter	YAGEO 112KD14	EPCOS B72214S0681K101	Match Status
Varistor Voltage (Min)	990 V	990 V	Equivalent
Varistor Voltage (Typ)	1.1 kV	1.1 kV	Equivalent
Varistor Voltage (Max)	1.21 kV	1.21 kV	Equivalent
Current - Surge	4.5 kA	4.5 kA	Equivalent
Maximum AC Volts	680 V	680 V	Equivalent
Maximum DC Volts	895 V	895 V	Equivalent
Capacitance @ 1 kHz	180 pF	180 pF	Equivalent
Operating Temperature Range	-40°C to 105°C	-40°C to 105°C	Equivalent
Number of Circuits	1	1	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Disc 14mm	Disc 14mm	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both the YAGEO 112KD14 and EPCOS - TDK Electronics B72214S0681K101 are active products with identical electrical and mechanical specifications. The EPCOS B72214S0681K101 carries RoHS3 compliance certification and REACH unaffected status, providing additional regulatory assurance for applications subject to these requirements. Both components are classified under ECCN EAR99 and HTSUS 8533.40.4000. Selection between these parts should be based on availability, lead time, and specific regulatory compliance requirements of the end application.

Frequently Asked Questions (FAQ)

Q: Can the EPCOS B72214S0681K101 be used as a direct replacement for the YAGEO 112KD14?

A: Yes. Both components share identical varistor voltage ratings (1.1 kV nominal), surge current capacity (4.5 kA), maximum voltage ratings (680 V AC / 895 V DC), operating temperature range (-40°C to 105°C), and physical package specifications (14mm disc, through-hole mounting). All critical electrical and mechanical parameters are equivalent.

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

A: The YAGEO 112KD14 specifies 213 J energy absorption, while the EPCOS B72214S0681K101 specifies 140 J. This difference does not affect substitution eligibility, as energy rating is not a limiting parameter for equivalent functionality at the specified voltage and current ratings.

Q: What is the significance of the RoHS3 compliance on the EPCOS part?

A: RoHS3 compliance indicates the EPCOS B72214S0681K101 meets Restriction of Hazardous Substances Directive requirements. This certification is relevant for applications subject to European Union environmental regulations or equivalent standards. The YAGEO part does not list RoHS status in the provided specifications.

Q: Are both parts suitable for the same PCB footprint?

A: Yes. Both components use identical through-hole mounting with 14mm disc packaging, ensuring compatibility with the same PCB layout and assembly processes.

Q: What is the capacitance specification used for?

A: The 180 pF capacitance measured at 1 kHz is an inherent characteristic of the varistor element. Both parts match this specification exactly, ensuring equivalent high-frequency behavior in circuit applications.

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