CR4802AC Equivalent & Substitute Parts

Part Overview

The CR4802AC is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage clamping applications. This component features a 220V reverse standoff voltage rating and is housed in a TO-220 Modified package with 2 bidirectional channels. The CR4802AC is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CR4802AC

Littelfuse Inc.In Stock: 809CR4802AC Datasheet

Current PartRFQ

P4802ACL

Littelfuse Inc.In Stock: 2430P4802ACL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The P4802ACL is identified as the manufacturer-recommended substitute for the CR4802AC. Substitution compatibility is determined by the following critical parameters:

• Voltage Rating Alignment: The P4802ACL provides off-state voltage ratings of 220V and 440V, with the 220V rating directly corresponding to the CR4802AC's 220V reverse standoff specification.
• Package Compatibility: Both components utilize the 3-SIP package in TO-220 Modified form factor, ensuring mechanical and electrical pin compatibility.
• Bidirectional Protection: The P4802ACL contains 2 elements, maintaining the dual-channel protection architecture of the original CR4802AC.
• Thermal Operating Range: The P4802ACL operates within the same temperature envelope required for general-purpose TVS applications.
• Through-Hole Mounting: Both components are through-hole mounted, preserving PCB assembly compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P4802ACL is the appropriate substitute for the CR4802AC based on the following factors:

• Product Status: The CR4802AC is obsolete, while the P4802ACL maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: The P4802ACL achieves ROHS3 compliance, addressing modern environmental and regulatory requirements that the non-compliant CR4802AC does not meet.
• Functional Equivalence: The 220V off-state rating of the P4802ACL directly aligns with the CR4802AC's 220V reverse standoff specification, maintaining circuit protection performance for the intended application.
• Package Preservation: Identical 3-SIP TO-220 Modified packaging ensures direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the P4802ACL be used as a direct replacement for the CR4802AC?

A: Yes. The P4802ACL provides equivalent electrical performance at the 220V rating level and maintains identical package geometry and pin configuration. No PCB modifications are required.

Q: What is the primary difference between these components?

A: The P4802ACL is an active product with ROHS3 compliance, while the CR4802AC is obsolete and RoHS non-compliant. The P4802ACL also offers dual voltage ratings (220V and 440V), providing design flexibility beyond the single 220V specification of the CR4802AC.

Q: Are the thermal characteristics equivalent?

A: Both components are rated for MSL 1 (Unlimited) moisture sensitivity and operate within standard industrial temperature ranges suitable for general-purpose TVS applications.

Q: Does the P4802ACL require any circuit design changes?

A: No. The P4802ACL maintains the same bidirectional 2-channel architecture, package form factor, and 220V protection threshold, allowing direct substitution without circuit modifications.

Q: What packaging options are available for the P4802ACL?

A: The P4802ACL is supplied in bulk packaging, consistent with standard component distribution for through-hole mounted devices.