ROV05-201K Equivalent & Substitute Parts

Part Overview

The ROV05-201K is a 200 V, 400 A varistor manufactured by Littelfuse Inc. in a through-hole disc 5mm package. This component is classified as a Transient Voltage Suppressor (TVS) and is designed for single-circuit overvoltage protection applications. The ROV05-201K carries an obsolete product status, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

ROV05-201K

Littelfuse Inc.In Stock: 1005ROV05-201K Datasheet

Current PartRFQ

V205ZA05P

Littelfuse Inc.In Stock: 6411V205ZA05P Datasheet

MFR RecommendedRFQ

ERZ-V05D201

Panasonic Electronic ComponentsIn Stock: 4656ERZ-V05D201 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ROV05-201K are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Varistor voltage range: 180 V to 225.5 V (encompasses the 200 V nominal specification)
• Current surge capacity: minimum 400 A
• Maximum DC voltage rating: 170 V
• Maximum AC voltage rating: 130 V
• Single-circuit configuration
• Through-hole mounting
• Operating temperature range: -40°C to 85°C minimum

Mechanical Compatibility:

• Package form factor: Disc configuration
• Lead spacing and footprint compatibility with 5mm or 7mm disc packages

The two substitute parts listed below meet these criteria and are suitable for direct replacement in applications requiring the ROV05-201K electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

V205ZA05P (Littelfuse Inc., Active Status)

The V205ZA05P is an active production part from Littelfuse Inc. with varistor voltage specifications (184.5 V to 225.5 V) that encompass the ROV05-201K nominal 200 V rating. This part maintains identical maximum DC and AC voltage ratings, surge current capacity of 400 A, and through-hole disc 5mm package compatibility. The V205ZA05P offers extended operating temperature range (-55°C to 85°C) and carries ROHS3 compliance and REACH unaffected status. Energy rating of 5.5 J is lower than the main part; applications requiring higher energy dissipation should account for this difference.

ERZ-V05D201 (Panasonic Electronic Components, Active Status)

The ERZ-V05D201 is an active production part from Panasonic Electronic Components with varistor voltage specifications (185 V to 225 V) that encompass the ROV05-201K nominal 200 V rating. This part maintains identical maximum DC and AC voltage ratings and through-hole mounting configuration. The ERZ-V05D201 provides doubled surge current capacity (800 A versus 400 A) and higher energy rating (8.5 J versus 7.1 J), offering enhanced transient protection capability. The package form factor is disc 7mm, requiring verification of PCB footprint compatibility. ROHS3 compliance and REACH unaffected status are maintained.

Both substitute parts satisfy the electrical and mechanical requirements of the ROV05-201K and are suitable for direct replacement in applications where the specified parameters are met.

Frequently Asked Questions (FAQ)

Q: Can the V205ZA05P directly replace the ROV05-201K without PCB modifications?

A: Yes. The V205ZA05P maintains the same disc 5mm package and through-hole mounting configuration as the ROV05-201K. Varistor voltage specifications (184.5 V to 225.5 V) encompass the 200 V nominal rating. Maximum DC and AC voltage ratings, surge current capacity, and operating temperature range are compatible.

Q: What is the primary difference between the V205ZA05P and ERZ-V05D201 substitutes?

A: The V205ZA05P maintains the original 5mm disc package and 400 A surge current rating. The ERZ-V05D201 uses a 7mm disc package and provides doubled surge current capacity (800 A) with higher energy dissipation (8.5 J). Package size difference requires PCB footprint verification for the ERZ-V05D201.

Q: Does the ERZ-V05D201 require PCB layout changes?

A: The ERZ-V05D201 uses a disc 7mm package compared to the ROV05-201K disc 5mm package. PCB footprint compatibility must be verified before implementation. Lead spacing and mounting hole diameter may differ.

Q: Are both substitute parts RoHS and REACH compliant?

A: Yes. Both the V205ZA05P and ERZ-V05D201 carry ROHS3 compliance and REACH unaffected status, matching the environmental compliance profile of the ROV05-201K.

Q: Why is the V205ZA05P energy rating (5.5 J) lower than the ROV05-201K (7.1 J)?

A: Energy dissipation varies based on internal varistor material composition and geometry. Applications requiring specific energy absorption levels should account for this parameter difference. The ERZ-V05D201 provides higher energy rating (8.5 J) if increased energy dissipation is required.

Q: Can the ERZ-V05D201 be used in applications requiring exactly 400 A surge current?

A: Yes. The ERZ-V05D201 provides 800 A surge current capacity, which exceeds the 400 A requirement. This represents enhanced protection capability and does not create incompatibility with the original specification.

Q: What is the operating temperature range difference between substitutes?

A: The ROV05-201K and ERZ-V05D201 operate from -40°C to 85°C. The V205ZA05P extends the lower temperature limit to -55°C, providing broader environmental operating range.