P0721DF-1 Equivalent & Substitute Parts

Part Overview

The P0721DF-1 is a Transient Voltage Suppressor (TVS) device manufactured by Littelfuse Inc., part of the SIDACtor® series. This component is designed for circuit protection applications, specifically in SLIC (Subscriber Line Interface Circuit) systems. The device operates at a clamping voltage of 65V and utilizes mixed technology in a surface-mount 8-SOIC package.

The P0721DF-1 carries an Obsolete product status. Locating equivalent or substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

P0721DF-1

Littelfuse Inc.In Stock: 1021P0721DF-1 Datasheet

Current PartRFQ

P0721DF-1E

Littelfuse Inc.In Stock: 1110P0721DF-1E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P0721DF-1 is determined by strict alignment of the following critical parameters:

• Voltage - Clamping: 65V (exact match required)
• Technology: Mixed Technology (exact match required)
• Number of Circuits: 1 (exact match required)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (exact match required)
• Supplier Device Package: MS-012 (exact match required)
• RoHS Status: ROHS3 Compliant (minimum compliance level)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The P0721DF-1E qualifies as a direct substitute based on identical electrical specifications, mechanical packaging, and environmental compliance ratings. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The P0721DF-1E is the direct equivalent for the obsolete P0721DF-1. Both components share identical electrical characteristics, mechanical dimensions, and environmental compliance certifications. The P0721DF-1E maintains Active product status, ensuring ongoing manufacturer support and supply availability.

The primary operational difference is packaging format: the P0721DF-1E is supplied in Tape & Reel (TR) format, which is standard for high-volume manufacturing and automated assembly processes. This packaging format does not affect component performance or electrical function.

For applications requiring the P0721DF-1, the P0721DF-1E provides full functional and mechanical compatibility with the added benefit of active product status and current supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the P0721DF-1E be used as a direct replacement for the P0721DF-1?

A: Yes. The P0721DF-1E is electrically and mechanically identical to the P0721DF-1. Both components feature 65V clamping voltage, mixed technology, single-circuit configuration, and 8-SOIC MS-012 packaging. The P0721DF-1E is the active equivalent with current manufacturer support.

Q: What is the difference between the P0721DF-1 and P0721DF-1E?

A: The primary differences are product status and packaging format. The P0721DF-1 is Obsolete, while the P0721DF-1E is Active. The P0721DF-1E is supplied in Tape & Reel (TR) format, standard for automated assembly. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting the P0721DF-1E for the P0721DF-1?

A: No compatibility concerns exist. Both components are housed in the same 8-SOIC (0.154", 3.90mm Width) package with MS-012 supplier device package designation. PCB footprints, pin configurations, and mounting requirements are identical.

Q: Does the Tape & Reel packaging of the P0721DF-1E affect performance?

A: No. Tape & Reel packaging is a distribution format only and does not affect component electrical performance, reliability, or functional characteristics. The component itself remains unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both the P0721DF-1 and P0721DF-1E are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). Both carry identical ECCN (EAR99) and HTSUS (8541.30.0080) classifications.