P0640EB Equivalent & Substitute Parts

Part Overview

The P0640EB is a 58V off-state TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series, housed in a TO-226-2 package. This component is designed for transient voltage suppression applications requiring 250A peak pulse current capability. The P0640EB is currently classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P0640EB

Littelfuse Inc.In Stock: 1283P0640EB Datasheet

Current PartRFQ

P0640EBL

Littelfuse Inc.In Stock: 2055P0640EBL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0640EB is determined by electrical parameter equivalence and package compatibility. The following parameters must remain constant for direct substitution:

• Voltage - Off State: 58V
• Voltage - Breakover: 77V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 250A
• Current - Peak Pulse (10/1000µs): 80A
• Current - Hold (Ih): 150mA
• Capacitance: 60pF
• Package / Case: TO-226-2, TO-92-2 (TO-226AC)
• Mounting Type: Through Hole

The P0640EBL meets all electrical and mechanical requirements for direct substitution. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The P0640EBL is the direct electrical and mechanical equivalent of the P0640EB. Selection between these parts should be based on the following factors:

Product Status: The P0640EB is obsolete, while the P0640EBL maintains active product status with Littelfuse Inc. For new designs and long-term system support, the P0640EBL is the appropriate selection.

Regulatory Compliance: The P0640EBL is ROHS3 compliant, whereas the P0640EB is RoHS non-compliant. Applications subject to RoHS regulations require the P0640EBL.

Availability: The P0640EBL has higher current inventory (1953 pcs) compared to the P0640EB (1202 pcs), supporting both immediate procurement and future replenishment requirements.

Packaging: The P0640EBL is supplied in bulk packaging, while the P0640EB uses standard packaging. Packaging selection depends on procurement volume and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the P0640EBL directly replace the P0640EB in existing applications?

A: Yes. The P0640EBL is electrically and mechanically identical to the P0640EB. All voltage ratings, current specifications, capacitance values, and package dimensions are equivalent. Direct substitution is permissible without circuit modification.

Q: What is the significance of the product status difference?

A: The P0640EB is classified as obsolete, indicating Littelfuse Inc. no longer manufactures this part number. The P0640EBL maintains active status, ensuring continued availability and manufacturing support. For new designs and long-term applications, the P0640EBL is the recommended selection.

Q: Are there RoHS compliance implications for substitution?

A: Yes. The P0640EB is RoHS non-compliant, while the P0640EBL is ROHS3 compliant. Applications subject to RoHS directives or customer requirements must use the P0640EBL.

Q: Does the TO-226-2 package remain the same for both parts?

A: Yes. Both the P0640EB and P0640EBL use the TO-226-2 package with TO-92-2 (TO-226AC) configuration. PCB footprints and mounting procedures are identical.

Q: What is the difference between standard and bulk packaging?

A: Standard packaging (P0640EB) uses conventional reel or tape formats for typical production volumes. Bulk packaging (P0640EBL) is supplied in larger quantities per container, reducing per-unit packaging material and cost for high-volume procurement.