CR2202AB Equivalent & Substitute Parts

Part Overview

The CR2202AB is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in through-hole applications. This component features a 90V reverse standoff voltage rating and is housed in a TO-220 Modified package with 2 bidirectional channels. The CR2202AB is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CR2202AB

Littelfuse Inc.In Stock: 994CR2202AB Datasheet

Current PartRFQ

P2202ABL

Littelfuse Inc.In Stock: 2234P2202ABL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CR2202AB is determined by the following critical parameters:

Voltage Compatibility: The substitute must maintain the 90V reverse standoff voltage specification to ensure equivalent protection characteristics in the target application.

Package Compatibility: The 3-SIP TO-220 Modified package is mandatory for mechanical and electrical compatibility with existing PCB layouts and connector interfaces.

Channel Configuration: The 2-channel bidirectional configuration must be preserved to match the original circuit protection topology.

Mounting Type: Through-hole mounting is required to maintain compatibility with existing board designs.

Thermal Range: The operating temperature range of -55°C to 175°C establishes the acceptable thermal envelope for substitute selection.

The P2202ABL, manufactured by Littelfuse Inc., satisfies these substitution criteria while offering enhanced performance characteristics and improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The P2202ABL is the qualified substitute for the obsolete CR2202AB based on the following engineering criteria:

Product Status: The P2202ABL maintains active production status, ensuring long-term availability and supply chain continuity. The CR2202AB obsolete status necessitates transition to an alternative component.

Compliance Posture: The P2202ABL achieves ROHS3 compliance, whereas the CR2202AB is RoHS non-compliant. For applications subject to regulatory requirements or customer specifications mandating RoHS compliance, the P2202ABL is the appropriate selection.

Electrical Equivalence: Both components share identical voltage ratings at the 90V standoff level, maintaining functional equivalence for standard protection applications. The P2202ABL offers dual-voltage capability (90V/180V) providing design flexibility for future applications.

Package and Mounting Compatibility: Both components utilize the 3-SIP TO-220 Modified package with through-hole mounting, ensuring direct PCB layout compatibility without redesign.

Moisture Sensitivity: Both components carry MSL 1 (Unlimited) classification, indicating equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the P2202ABL be used as a direct replacement for the CR2202AB without PCB modifications?

A: Yes. Both components share identical package specifications (3-SIP TO-220 Modified) and through-hole mounting configuration. Pin-to-pin compatibility is maintained, allowing direct substitution without PCB layout changes.

Q: What is the primary difference between the CR2202AB and P2202ABL?

A: The CR2202AB is a Zener-type TVS diode in the SiBOD™ series with obsolete status. The P2202ABL is a thyristor-based TVS device in the SIDACtor® series with active production status and ROHS3 compliance. Both maintain the 90V reverse standoff voltage specification required for equivalent protection.

Q: Are there any thermal or operating temperature differences between these components?

A: The CR2202AB operates across -55°C to 175°C (TJ). The P2202ABL specifications provided do not explicitly state an operating temperature range. Thermal performance should be verified against application requirements during design validation.

Q: Does the P2202ABL dual-voltage capability (90V/180V) affect compatibility?

A: No. The P2202ABL can be configured for 90V operation, matching the CR2202AB specification. The dual-voltage feature provides design flexibility for applications requiring higher voltage protection without component substitution.

Q: What packaging options are available for the P2202ABL?

A: The P2202ABL is supplied in Bulk packaging. The TO-220 Modified package configuration remains consistent with the CR2202AB for through-hole applications.

Q: Are there any compliance or certification differences I should consider?

A: The P2202ABL is ROHS3 compliant and REACH unaffected. The CR2202AB is RoHS non-compliant. For applications subject to environmental or regulatory requirements, the P2202ABL is the appropriate selection.