VLP270DF Equivalent & Substitute Parts

Part Overview

The VLP270DF is a polymeric PTC resettable fuse manufactured by Littelfuse Inc. as part of the PolySwitch® VLP series. This component is rated for 16V maximum voltage with a 2.7A hold current and is designed for overcurrent protection in electronic circuits. The VLP270DF is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

VLP270DF

Littelfuse Inc.In Stock: 879VLP270DF Datasheet

Current PartRFQ

VLP270F

Littelfuse Inc.In Stock: 8451VLP270F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VLP270DF is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Voltage rating: 16V maximum
• Hold current (Ih): 2.7A maximum
• Trip current (It): 6.5A
• Maximum current: 60A
• Time to trip: 5 seconds
• Initial resistance (Ri): 12 mOhms minimum
• Post-trip resistance (R1): 36 mOhms maximum
• Operating temperature range: -40°C to 85°C
• Package type: Strap configuration
• Physical dimensions: 0.866" L x 0.201" W (22.00mm x 5.10mm)
• Thickness: 0.032" (0.80mm) maximum
• Regulatory approvals: CSA, TUV, UL certification

Parameter Comparison

Engineering Selection Recommendations

The VLP270F is a direct parametric equivalent to the VLP270DF. Both components are manufactured by Littelfuse Inc. within the PolySwitch® VLP series and share identical electrical specifications, thermal ratings, physical dimensions, and regulatory certifications (CSA, TUV, UL).

The primary distinction between these parts is product status and packaging configuration. The VLP270DF is discontinued, while the VLP270F maintains active product status with bulk packaging availability. Both components meet ROHS3 compliance requirements and are suitable for applications requiring 16V, 2.7A hold current polymeric PTC resettable fuse protection.

Frequently Asked Questions (FAQ)

Q: Can VLP270F replace VLP270DF in existing designs?

A: Yes. The VLP270F is a direct parametric equivalent with identical electrical characteristics, thermal operating range, physical dimensions, and regulatory approvals. The components are functionally interchangeable.

Q: What is the difference between VLP270DF and VLP270F?

A: The VLP270DF is discontinued, while VLP270F is an active product. The VLP270DF was supplied with user-defined packaging, while VLP270F is available in bulk packaging. All electrical and mechanical specifications are identical.

Q: Are there any compliance differences between these parts?

A: Both components carry identical regulatory certifications (CSA, TUV, UL) and meet ROHS3 compliance standards. No compliance differences exist between the two parts.

Q: What packaging options are available?

A: VLP270DF was supplied with user-defined packaging (discontinued). VLP270F is available in bulk packaging configuration.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both components use identical strap package configuration with matching physical dimensions (0.866" L x 0.201" W, 22.00mm x 5.10mm) and thickness (0.032", 0.80mm maximum). No design modifications are required for substitution.