P3500SDRP Equivalent & Substitute Parts

Part Overview

The P3500SDRP is a 320V off-state, 1 kA peak pulse TVS thyristor from Littelfuse Inc.'s SIDACtor® series, housed in a DO-214AA (SMB) surface mount package. This component is designed for transient voltage suppression applications requiring high current handling capability. The P3500SDRP is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P3500SDRP

Littelfuse Inc.In Stock: 1204P3500SDRP Datasheet

Current PartRFQ

P3500SDLRP

Littelfuse Inc.In Stock: 2468P3500SDLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3500SDRP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Breakover: 400V
• Voltage - Off State: 320V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 1 kA
• Current - Peak Pulse (10/1000µs): 200A
• Current - Hold (Ih): 50 mA
• Capacitance: 65 pF
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

The P3500SDLRP meets all electrical specifications and mechanical requirements identical to the main part. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P3500SDLRP is a direct functional equivalent to the P3500SDRP with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Product Status: The P3500SDRP is obsolete. The P3500SDLRP is active and represents the current production equivalent.

Compliance: The P3500SDLRP is ROHS3 compliant, whereas the P3500SDRP is RoHS non-compliant. For applications subject to RoHS regulations, the P3500SDLRP is the required choice.

Packaging: The P3500SDLRP is supplied in Tape & Reel format, suitable for automated assembly processes. The P3500SDRP is supplied in bulk packaging. Packaging selection depends on manufacturing process requirements and order quantities.

Availability: The P3500SDLRP has 2400 units in stock (Active status). The P3500SDRP has 1094 units in stock (Obsolete status). For new designs and ongoing production, the P3500SDLRP is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Can the P3500SDLRP directly replace the P3500SDRP in existing designs?

A: Yes. The P3500SDLRP is electrically and mechanically identical to the P3500SDRP. All voltage ratings, current specifications, capacitance, and package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between these two part numbers?

A: The primary differences are product status (Obsolete versus Active), packaging format (Bulk versus Tape & Reel), and RoHS compliance status (non-compliant versus ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Is the DO-214AA package the same for both parts?

A: Yes. Both parts use the DO-214AA (SMB) surface mount package with identical mechanical dimensions and pin configuration.

Q: Which part should be used for new designs?

A: The P3500SDLRP should be used for new designs. It is the active production part with current RoHS3 compliance and is available in standard Tape & Reel packaging for automated assembly.

Q: Are there any performance differences between these parts?

A: No. Both parts have identical electrical performance across all specified parameters: 400V breakover voltage, 320V off-state voltage, 4V on-state voltage, 1 kA peak pulse current (8/20µs), 200A peak pulse current (10/1000µs), 50 mA hold current, and 65 pF capacitance.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.