P1100SCMCLRP Equivalent & Substitute Parts

Part Overview

The P1100SCMCLRP is a 90V off-state thyristor TVS device manufactured by Littelfuse, part of the SIDACtor® series. This surface-mount transient voltage suppressor operates in the DO-214AA (SMB) package and is designed for peak pulse current handling of 400A at 8/20µs pulse width. The device is Active status and ROHS3 compliant. Equivalent parts are identified when they maintain identical electrical performance across critical parameters including off-state voltage, peak pulse current ratings, and physical packaging specifications.

Substiute Parts

P1100SCMCLRP

LittelfuseIn Stock: 1257P1100SCMCLRP Datasheet

Current PartRFQ

SMP100LC-90

STMicroelectronicsIn Stock: 1946SMP100LC-90 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P1100SCMCLRP is determined by strict equivalence across the following critical parameters:

• Off-State Voltage: Must be 90V
• Peak Pulse Current (8/20µs): Must be 400A
• Peak Pulse Current (10/1000µs): Must be 100A
• Hold Current (Ih): Must be 150mA
• Package / Case: Must be DO-214AA, SMB
• Mounting Type: Must be Surface Mount
• Number of Elements: Must be 1

The SMP100LC-90 manufactured by STMicroelectronics meets all substitution criteria. Breakover voltage and on-state voltage variations within the specified ranges, along with minor capacitance differences, do not preclude functional equivalence in transient voltage suppression applications where the off-state voltage and current handling specifications are the controlling factors.

Parameter Comparison

Engineering Selection Recommendations

Both the P1100SCMCLRP and SMP100LC-90 are Active status products with ROHS3 compliance and REACH Unaffected designation. Selection between these parts should be based on availability and supply chain requirements. The SMP100LC-90 currently has higher inventory availability (1873 pcs vs. 1246 pcs). Both devices carry identical ECCN (EAR99) and HTSUS (8541.30.0080) classifications and MSL rating of 1 (Unlimited). The minor breakover voltage difference (130V vs. 125V) and capacitance variation (70pF vs. 80pF) do not affect functional equivalence for standard transient voltage suppression applications where the 90V off-state rating and 400A peak pulse current are the primary design constraints.

Frequently Asked Questions (FAQ)

Q: Can the SMP100LC-90 be used as a direct replacement for the P1100SCMCLRP?

A: Yes. Both devices share identical off-state voltage (90V), peak pulse current ratings (400A at 8/20µs and 100A at 10/1000µs), hold current (150mA), package type (DO-214AA, SMB), and mounting configuration. These are the controlling parameters for TVS thyristor substitution.

Q: What is the significance of the breakover voltage difference (130V vs. 125V)?

A: The breakover voltage indicates the threshold at which the device transitions to its on-state. The 5V difference between parts falls within acceptable tolerance ranges for transient suppression applications and does not prevent functional equivalence when the off-state voltage specification is met.

Q: Does the capacitance difference (70pF vs. 80pF) affect compatibility?

A: The 10pF capacitance variation is minor and does not preclude substitution. Capacitance becomes a selection factor only in applications with specific frequency response or impedance matching requirements, which are not specified as design constraints for this product category.

Q: Are both parts suitable for the same PCB assembly process?

A: Yes. Both the P1100SCMCLRP and SMP100LC-90 are surface-mount devices in identical DO-214AA (SMB) packages with the same MSL rating (1 - Unlimited), making them compatible with standard reflow soldering processes without additional moisture bake-out requirements.

Q: What compliance certifications apply to both parts?

A: Both devices are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8541.30.0080. No additional compliance documentation is required for substitution.