331KD10 Equivalent & Substitute Parts

Part Overview

The 331KD10 is a 330 V, 2.5 kA metal oxide varistor (MOV) manufactured by YAGEO in a 10mm disc form factor. This transient voltage suppressor is designed for single-circuit through-hole applications requiring surge current protection. The component is classified as Active product status with 632 units currently in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and procurement options when the primary part becomes unavailable or when inventory constraints require alternative sourcing.

Substiute Parts

331KD10

YAGEOIn Stock: 729331KD10 Datasheet

Current PartRFQ

MOV-10D331K

Bourns Inc.In Stock: 3105MOV-10D331K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 331KD10 is determined by electrical and mechanical parameter equivalence within the transient voltage suppressor category. The following criteria establish substitutability:

Electrical Parameters:

• Varistor voltage rating: 330 V (typical), with tolerance range 297 V to 363 V
• Maximum AC voltage: 210 V
• Maximum DC voltage: 275 V
• Surge current capacity: 2.5 kA
• Energy absorption: 43 J
• Capacitance: 300 pF @ 1 kHz

Mechanical Parameters:

• Package form factor: Disc 10mm
• Mounting configuration: Through Hole
• Number of circuits: 1
• Operating temperature range: -40°C to 105°C

Compliance & Environmental:

• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN classification: EAR99
• HTSUS code: 8533.40.4000

The MOV-10D331K manufactured by Bourns Inc. meets all specified electrical and mechanical parameters and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The MOV-10D331K from Bourns Inc. is a direct parametric equivalent to the 331KD10. Both components share identical electrical specifications, mechanical form factors, and environmental ratings. Selection between these parts is based on the following factors:

Product Status: Both components maintain Active product status, ensuring continued availability and manufacturer support.

Compliance Certifications: The MOV-10D331K carries RoHS3 compliance and REACH Unaffected status, providing additional regulatory assurance for applications subject to environmental directives.

Inventory Availability: The MOV-10D331K has 3032 units in stock compared to 632 units for the 331KD10, offering greater supply security for high-volume procurement.

Packaging: Both parts are supplied in Bulk packaging and are suitable for automated assembly processes.

The 331KD10 and MOV-10D331K are interchangeable at the circuit level without modification to PCB layout, schematic design, or assembly procedures.

Frequently Asked Questions (FAQ)

Q: Can the MOV-10D331K be used as a direct replacement for the 331KD10 in existing designs?

A: Yes. The MOV-10D331K is a parametric equivalent with identical electrical ratings (330 V varistor voltage, 2.5 kA surge current, 43 J energy), mechanical form factor (10mm disc), and mounting configuration (through hole). No circuit modifications are required.

Q: Are there differences in the physical dimensions between these parts?

A: Both components use the Disc 10mm package form factor. Physical dimensions are equivalent, and both are designed for through-hole mounting on standard PCB layouts.

Q: What is the operating temperature range for both parts?

A: Both the 331KD10 and MOV-10D331K operate across the temperature range of -40°C to 105°C (TA), making them suitable for industrial and commercial applications.

Q: Do these parts have different moisture sensitivity requirements?

A: No. Both components are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control measures are required during storage, handling, or assembly.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain requirements and procurement strategy. Both parts are functionally equivalent. The MOV-10D331K offers higher inventory availability (3032 units versus 632 units), while the 331KD10 is the original specified component.

Q: Are there compliance or regulatory differences between these parts?

A: The MOV-10D331K carries RoHS3 compliance and REACH Unaffected status. Both parts share the same ECCN (EAR99) and HTSUS (8533.40.4000) classifications. Applications requiring specific regulatory compliance should reference the MOV-10D331K documentation.

Q: What is the capacitance specification for these varistors?

A: Both components have a capacitance of 300 pF measured at 1 kHz, which is relevant for high-frequency circuit analysis and EMI considerations.

Q: Can these parts be used interchangeably in surge protection circuits?

A: Yes. Both components are rated for 2.5 kA surge current and 43 J energy absorption, making them suitable for identical transient voltage suppression applications across the 210 V AC / 275 V DC operating range.