P1102SBLRP Equivalent & Substitute Parts

Part Overview

The P1102SBLRP is a 90V off-state TVS thyristor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. It features a TwinChip™ configuration with dual elements in a DO-214AA (SMB) surface mount package. The device is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this product category.

Substiute Parts

P1102SBLRP

Littelfuse Inc.In Stock: 1113P1102SBLRP Datasheet

Current PartRFQ

SMP100LC-90

STMicroelectronicsIn Stock: 1946SMP100LC-90 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P1102SBLRP is determined by the following critical parameters:

• Voltage - Off State: Must be 90V to maintain circuit protection threshold
• Package / Case: Must be DO-214AA (SMB) for mechanical and thermal compatibility
• Mounting Type: Must be Surface Mount for PCB integration
• RoHS Status: Must maintain ROHS3 compliance for regulatory alignment

The SMP100LC-90 qualifies as a substitute based on matching off-state voltage (90V), identical package type (DO-214AA, SMB), surface mount configuration, and equivalent RoHS3 compliance. While the substitute exhibits higher peak pulse current capability (400A vs. 250A at 8/20µs) and different element configuration (1 vs. 2 elements), these represent enhanced or alternative performance characteristics within the TVS thyristor category and do not preclude substitution in applications where the primary voltage suppression requirement is met.

Parameter Comparison

Engineering Selection Recommendations

Both the P1102SBLRP and SMP100LC-90 maintain active production status and ROHS3 compliance, supporting long-term supply chain stability and regulatory alignment. Selection between these devices should be based on application-specific current handling requirements and circuit topology considerations. The P1102SBLRP dual-element configuration and lower capacitance (35pF) may be preferred in applications with stringent capacitive loading constraints. The SMP100LC-90 single-element design with higher current ratings (400A peak pulse) and increased capacitance (80pF) addresses applications requiring enhanced transient energy absorption. Both devices share identical off-state voltage (90V) and package form factor (DO-214AA, SMB), ensuring mechanical and thermal compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the SMP100LC-90 directly replace the P1102SBLRP in existing designs?

A: Direct replacement is mechanistically feasible due to identical DO-214AA (SMB) package geometry and surface mount configuration. Electrical compatibility depends on application requirements. The substitute's higher peak pulse current (400A vs. 250A) and increased capacitance (80pF vs. 35pF) must be evaluated against circuit specifications.

Q: What is the significance of the dual-element (2) versus single-element (1) configuration?

A: The P1102SBLRP features two integrated elements within a single package, while the SMP100LC-90 contains one element. This affects internal current distribution, thermal characteristics, and capacitive behavior. Application-specific circuit analysis is required to determine which configuration is appropriate.

Q: Are both parts suitable for high-frequency applications?

A: Capacitance values differ significantly (35pF vs. 80pF). The P1102SBLRP's lower capacitance may be more suitable for applications sensitive to capacitive coupling or high-frequency signal integrity. The SMP100LC-90's higher capacitance may introduce additional loading in such environments.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both devices are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8541.30.0080). Regulatory compatibility is maintained across both options.

Q: What is the difference in breakover voltage between these parts?

A: The P1102SBLRP has a breakover voltage of 130V, while the SMP100LC-90 is rated at 125V. This 5V difference may be significant in applications with tight voltage margin specifications and should be evaluated against circuit protection requirements.