TMOV20R200M Equivalent & Substitute Parts

Part Overview

The TMOV20R200M is a 314 V, 10 kA varistor manufactured by Littelfuse Inc. in the iTMOV® series. This transient voltage suppressor is designed for through-hole mounting in a 20mm disc configuration with 3-lead termination. The part is currently classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	314 V
Varistor Voltage Range	283 V – 345 V
Current - Surge	10 kA
Maximum AC Volts	200 V
Maximum DC Volts	260 V
Energy	154 J
Mounting Type	Through Hole
Package / Case	Disc 20mm 3-Lead
Operating Temperature	-55°C to 85°C
Number of Circuits	1
Capacitance @ 1 MHz	1250 pF

Substitute Part Grouping Explanation

Substitution of the TMOV20R200M is based on strict electrical and mechanical parameter matching within the iTMOV® series. The substitute part must satisfy the following criteria:

Varistor voltage (typical) of 314 V with tolerance range 283 V – 345 V
Surge current rating of 10 kA
Maximum AC voltage of 200 V and maximum DC voltage of 260 V
Energy rating of 154 J
Through-hole mounting in 20mm disc 3-lead package
Operating temperature range of -55°C to 85°C
Single circuit configuration
Capacitance of 1250 pF @ 1 MHz

The TMOV20RP200M meets all these electrical and mechanical specifications and is classified as an active product, making it a direct functional equivalent.

Parameter Comparison

Parameter	TMOV20R200M	TMOV20RP200M
Manufacturer	Littelfuse Inc.	Littelfuse Inc.
Series	iTMOV®	iTMOV®
Varistor Voltage (Min)	283 V	283 V
Varistor Voltage (Typ)	314 V	314 V
Varistor Voltage (Max)	345 V	345 V
Current - Surge	10 kA	10 kA
Maximum AC Volts	200 V	200 V
Maximum DC Volts	260 V	260 V
Energy	154 J	154 J
Number of Circuits	1	1
Capacitance @ 1 MHz	1250 pF	1250 pF
Operating Temperature	-55°C to 85°C	-55°C to 85°C
Mounting Type	Through Hole	Through Hole
Package / Case	Disc 20mm 3-Lead	Disc 20mm 3-Lead
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The TMOV20RP200M is the direct substitute for the obsolete TMOV20R200M. Both parts are manufactured by Littelfuse Inc. within the iTMOV® series and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between the two parts is product status and regulatory compliance. The TMOV20RP200M is an active product with ROHS3 compliance and REACH unaffected status, whereas the TMOV20R200M is obsolete and RoHS non-compliant. For new designs or ongoing procurement, the TMOV20RP200M is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can TMOV20RP200M be used as a direct replacement for TMOV20R200M?

A: Yes. Both parts are identical in electrical performance and mechanical form factor. The TMOV20RP200M is the active equivalent and is suitable for direct substitution in all applications where the TMOV20R200M was specified.

Q: What is the difference between TMOV20R200M and TMOV20RP200M?

A: The parts are electrically and mechanically identical. The TMOV20RP200M differs in product status (active vs. obsolete) and regulatory compliance (ROHS3 compliant vs. RoHS non-compliant). The packaging designation also differs (Bulk vs. unspecified for the original part).

Q: Are there any compatibility concerns when substituting these parts?

A: No. The identical varistor voltage, surge current rating, package configuration, and operating temperature range ensure full compatibility. PCB layout and circuit design require no modification.

Q: What certifications apply to the substitute part?

A: The TMOV20RP200M is ROHS3 compliant and REACH unaffected. Both parts carry the same ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

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