181KD07 Equivalent & Substitute Parts

Part Overview

The 181KD07 is a metal oxide varistor (MOV) disc designed for transient voltage suppression applications. Manufactured by YAGEO, this through-hole component provides surge current protection at 180 V nominal varistor voltage with a 1.2 kA surge current rating. The part is currently active in production with 1101 pieces available in bulk packaging. Equivalent substitute parts are identified for applications requiring alternative sourcing, inventory management, or supply chain continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

181KD07

YAGEOIn Stock: 1163181KD07 Datasheet

Current PartRFQ

B72207S0111K101

EPCOS - TDK ElectronicsIn Stock: 3746B72207S0111K101 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 181KD07 is determined by strict equivalence across the following critical parameters:

• Varistor Voltage Range: Minimum 162 V, Typical 180 V, Maximum 198 V
• Surge Current Rating: 1.2 kA
• Maximum AC/DC Voltage Ratings: 115 V AC / 150 V DC
• Mounting Configuration: Through Hole
• Package Geometry: Disc 7mm
• Number of Circuits: Single circuit (1)
• Capacitance: 280 pF @ 1 kHz
• Operating Temperature Range: -40°C to 105°C

The substitute part B72207S0111K101 manufactured by EPCOS - TDK Electronics meets all these electrical and mechanical requirements, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 181KD07 and B72207S0111K101 are active production components with equivalent electrical and mechanical specifications. The 181KD07 is manufactured by YAGEO with 1101 pieces in current inventory. The B72207S0111K101 is manufactured by EPCOS - TDK Electronics with 3705 pieces in current inventory and carries ROHS3 compliance and REACH Unaffected status.

Selection between these parts should be based on:

• Inventory Availability: B72207S0111K101 has higher stock levels (3705 vs. 1101 pieces)
• Compliance Requirements: B72207S0111K101 provides explicit ROHS3 and REACH documentation
• Supply Chain Continuity: Either part provides equivalent functional performance for direct substitution
• Energy Dissipation: The 181KD07 has a higher energy rating (11.7 J vs. 8.4 J), which may be relevant for specific surge protection applications

Both parts are suitable for through-hole PCB assembly in transient voltage suppression circuits operating within the specified voltage and temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can B72207S0111K101 be used as a direct replacement for 181KD07?

A: Yes. Both parts share identical varistor voltage ratings (180 V typical), surge current capacity (1.2 kA), maximum voltage ratings (115 V AC / 150 V DC), capacitance (280 pF @ 1 kHz), operating temperature range (-40°C to 105°C), and through-hole disc 7mm package geometry. They are functionally equivalent for circuit applications.

Q: What is the difference in energy rating between these parts?

A: The 181KD07 has an energy rating of 11.7 J, while the B72207S0111K101 has an energy rating of 8.4 J. This difference should be evaluated against specific application surge energy requirements. Both parts meet the same voltage and current specifications.

Q: Are there any compliance or certification differences?

A: The B72207S0111K101 carries explicit ROHS3 compliance and REACH Unaffected status. Both parts are classified as EAR99 and share the same HTSUS code (8533.40.4000). Compliance requirements for your application should determine which part is appropriate.

Q: Can these parts be used interchangeably on existing PCBs?

A: Yes. Both parts use identical through-hole mounting and disc 7mm package geometry, enabling direct PCB footprint compatibility without layout modifications.

Q: What is the moisture sensitivity level for these parts?

A: The 181KD07 has MSL 1 (Unlimited). The B72207S0111K101 lists MSL as Not Applicable. Both parts are suitable for standard storage and handling conditions without special moisture control requirements.