P0722SALRP Equivalent & Substitute Parts

Part Overview

The P0722SALRP is a 65V off-state transient voltage suppressor (TVS) thyristor manufactured by Littelfuse in the TwinChip™ series. This surface-mount component in DO-214AA (SMB) packaging is designed for transient voltage protection applications requiring peak pulse current handling of 150 A at 8/20µs pulse duration. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting the same electrical and mechanical specifications.

Substiute Parts

P0722SALRP

LittelfuseIn Stock: 1697P0722SALRP Datasheet

Current PartRFQ

SMP100LC-65

STMicroelectronicsIn Stock: 55194SMP100LC-65 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS thyristor components is determined by electrical compatibility across the following critical parameters:

• Off-State Voltage (Voff): Must match at 65V to ensure proper circuit protection threshold
• Breakover Voltage (Vbo): Acceptable range is 85V to 88V, maintaining consistent trigger characteristics
• On-State Voltage (Von): Must not exceed 8V to preserve forward conduction performance
• Peak Pulse Current (8/20µs): Minimum 150A required for equivalent protection capability
• Package and Mounting: DO-214AA (SMB) surface-mount package mandatory for PCB compatibility
• Compliance Standards: RoHS3 compliance required for regulatory alignment

The SMP100LC-65 from STMicroelectronics meets these substitution criteria with equivalent off-state voltage, compatible breakover voltage, and superior peak pulse current rating (400A), while maintaining identical package specifications and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both P0722SALRP and SMP100LC-65 are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The SMP100LC-65 provides higher peak pulse current capability (400A versus 150A at 8/20µs), offering enhanced protection margin in transient suppression circuits. The breakover voltage differential of 3V (88V versus 85V) remains within acceptable engineering tolerance for TVS thyristor applications.

Selection between these components should be based on circuit protection requirements, available inventory, and design validation scope. Both components are qualified for surface-mount assembly in DO-214AA packaging and are suitable for direct substitution in equivalent circuit applications.

Frequently Asked Questions (FAQ)

Q: Can SMP100LC-65 directly replace P0722SALRP in existing designs?

A: Yes, provided the circuit design accommodates the higher peak pulse current rating (400A) and the 3V lower breakover voltage (85V versus 88V). Both components share identical off-state voltage (65V), package type (DO-214AA, SMB), and mounting specifications.

Q: What is the significance of the different number of elements (2 versus 1)?

A: The P0722SALRP contains two internal elements in TwinChip™ configuration, while the SMP100LC-65 contains a single element. This structural difference does not affect substitution compatibility when electrical parameters are equivalent.

Q: Does the capacitance difference (45pF versus 90pF) affect circuit performance?

A: Capacitance values are provided for reference. Substitution compatibility is determined by the primary electrical parameters: off-state voltage, breakover voltage, on-state voltage, and peak pulse current ratings. Circuit-specific validation is required if capacitance is a critical design parameter.

Q: Are both components suitable for high-reliability applications?

A: Both P0722SALRP and SMP100LC-65 are active production components with RoHS3 compliance and MSL 1 (unlimited moisture sensitivity). Component selection for high-reliability applications should include review of manufacturer datasheets, qualification testing, and application-specific requirements.

Q: What packaging options are available for these TVS thyristors?

A: Both components are supplied in DO-214AA (SMB) surface-mount package. The P0722SALRP is available in Tape & Reel (TR) packaging, while the SMP100LC-65 is available in Cut Tape (CT) and Digi-Reel® formats. Packaging selection depends on assembly volume and procurement requirements.