CR3002AB Equivalent & Substitute Parts

Part Overview

The CR3002AB is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 140V reverse standoff voltage rating and is housed in a TO-220 Modified package with 2 bidirectional channels. The CR3002AB is classified as obsolete, making identification of suitable substitute components essential for ongoing system design and maintenance.

Substiute Parts

CR3002AB

Littelfuse Inc.In Stock: 1151CR3002AB Datasheet

Current PartRFQ

P3002ABL

Littelfuse Inc.In Stock: 1135P3002ABL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The P3002ABL qualifies as a substitute for the CR3002AB based on the following critical parameters:

Matching Parameters:

• Manufacturer: Littelfuse Inc. (same manufacturer ensures design continuity)
• Package / Case: 3-SIP (identical physical form factor)
• Supplier Device Package: TO-220 Modified (identical mounting interface)
• Mounting Type: Through Hole (compatible installation method)
• Voltage - Off State: 140V, 280V (includes the 140V standoff voltage requirement)
• Number of Elements: 2 (matches bidirectional channel requirement)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical handling requirements)

Functional Equivalence: The P3002ABL operates as a TVS thyristor (SIDACtor®) with voltage ratings that encompass the CR3002AB's 140V standoff specification. The 180V breakover voltage of the P3002ABL aligns with the CR3002AB's 180V minimum breakdown voltage, establishing functional compatibility for overvoltage protection applications.

Parameter Comparison

Engineering Selection Recommendations

The P3002ABL is the manufacturer-recommended substitute for the CR3002AB. Selection of the P3002ABL provides the following advantages:

Product Status: The P3002ABL carries Active product status, ensuring continued availability and manufacturer support, whereas the CR3002AB is Obsolete.

Compliance: The P3002ABL achieves ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements. The CR3002AB is RoHS non-compliant, which may present procurement and environmental compliance challenges in regulated markets.

Electrical Compatibility: Both components share identical package geometry (3-SIP, TO-220 Modified), mounting method (Through Hole), and core voltage ratings (140V standoff, 180V breakdown minimum). The P3002ABL's dual voltage rating (140V/280V) provides additional design flexibility while maintaining full compatibility with the CR3002AB's 140V specification.

Thermal and Handling: Both components operate across the same temperature range and share identical moisture sensitivity classification, ensuring equivalent reliability in storage and deployment.

Frequently Asked Questions (FAQ)

Q: Can the P3002ABL be used as a direct replacement for the CR3002AB?

A: Yes. Both components share identical package geometry (3-SIP, TO-220 Modified), mounting type (Through Hole), and core electrical specifications (140V standoff voltage, 180V breakdown voltage minimum, 2 bidirectional channels). No circuit modifications are required for substitution.

Q: What is the primary difference between the CR3002AB and P3002ABL?

A: The CR3002AB is a Zener-type TVS diode, while the P3002ABL is a TVS thyristor (SIDACtor®). Both provide transient voltage suppression, but the P3002ABL offers enhanced current handling capability (250A peak pulse at 8/20µs) and is manufactured to current compliance standards (ROHS3, REACH Unaffected). The CR3002AB is Obsolete; the P3002ABL is Active.

Q: Are there any thermal or environmental differences?

A: Both components operate across -55°C to 175°C and share identical Moisture Sensitivity Level (MSL) classification of 1 (Unlimited). No differences in thermal management or storage requirements exist.

Q: Does the P3002ABL's dual voltage rating (140V/280V) affect compatibility?

A: No. The P3002ABL's 140V off-state voltage directly matches the CR3002AB's 140V standoff specification. The additional 280V rating provides design flexibility for applications requiring higher voltage protection but does not compromise compatibility with existing 140V designs.

Q: What compliance certifications should I consider?

A: The P3002ABL is ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards. The CR3002AB is RoHS non-compliant. For new designs or systems subject to regulatory compliance requirements, the P3002ABL is the appropriate selection.