Littelfuse P0720EA TVS Thyristor Equivalent & Substitute Parts

Part Overview

The Littelfuse P0720EA is a 65V off-state, 150A peak pulse TVS thyristor in TO-226-2 packaging, part of the SIDACtor® series. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The P0720EA provides transient voltage suppression through a thyristor topology with specified breakover voltage of 88V and on-state voltage of 4V.

Substiute Parts

P0720EA

LittelfuseIn Stock: 791P0720EA Datasheet

Current PartRFQ

P0720EAL

Littelfuse Inc.In Stock: 20300P0720EAL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0720EA is determined by electrical and mechanical parameter equivalence. The following criteria establish direct substitutability:

• Voltage ratings: Off-state voltage (65V), breakover voltage (88V), and on-state voltage (4V) must match exactly
• Current specifications: Peak pulse current at 8/20µs (150A) and 10/1000µs (45A) must be identical
• Hold current (Ih): 150 mA requirement must be met
• Capacitance: 60 pF specification must be maintained
• Package compatibility: TO-226-2 or TO-92-2 (TO-226AC) through-hole mounting
• Series designation: SIDACtor® topology

The P0720EAL meets all these criteria and qualifies as a direct electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

The P0720EAL is the direct substitute for the obsolete P0720EA. Selection is based on the following factors:

• Product Status: The P0720EAL is active and in production, whereas the P0720EA is obsolete. For new designs and ongoing production, the P0720EAL is the appropriate choice.
• Compliance: The P0720EAL is RoHS3 compliant and REACH unaffected, providing regulatory compliance advantages over the non-compliant P0720EA.
• Electrical Equivalence: All voltage, current, and capacitance parameters are identical between the two parts.
• Mechanical Compatibility: Both parts use identical TO-226-2/TO-92-2 through-hole packaging, ensuring direct PCB compatibility without layout modifications.
• Availability: The P0720EAL has significantly higher inventory availability (20,200 pcs) compared to the P0720EA (728 pcs).

Frequently Asked Questions (FAQ)

Q: Can the P0720EAL be used as a direct replacement for the P0720EA in existing designs?

A: Yes. The P0720EAL is electrically and mechanically identical to the P0720EA. All voltage ratings, current specifications, and package dimensions match exactly. No circuit modifications or PCB layout changes are required.

Q: What is the difference between the P0720EA and P0720EAL?

A: The primary differences are product status and compliance. The P0720EA is obsolete and RoHS non-compliant. The P0720EAL is an active product that is RoHS3 compliant and REACH unaffected. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: No. Both the P0720EA and P0720EAL use the same TO-226-2 and TO-92-2 (TO-226AC) through-hole packages. They are pin-compatible and footprint-compatible.

Q: What does the "L" designation in P0720EAL indicate?

A: The "L" suffix typically indicates a packaging or compliance variant. In this case, the P0720EAL is supplied in bulk packaging and meets current RoHS3 compliance standards.

Q: Can I mix P0720EA and P0720EAL parts in the same production run?

A: While electrically equivalent, it is recommended to standardize on the P0720EAL for new production due to its active status, higher availability, and regulatory compliance. Mixing parts from different product statuses may complicate supply chain management and compliance documentation.

Q: What are the key parameters that determine substitutability for this TVS thyristor?

A: Substitutability is determined by: off-state voltage (65V), breakover voltage (88V), on-state voltage (4V), peak pulse current ratings (150A at 8/20µs and 45A at 10/1000µs), hold current (150 mA), capacitance (60 pF), and package type (TO-226-2/TO-92-2 through-hole). All these parameters must match exactly for direct substitution.