Littelfuse P1701SALRP Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The Littelfuse P1701SALRP is an active SIDACtor® Transient Voltage Suppressor (TVS) device designed for circuit protection in SLIC applications. This Surface Mount component operates at 200V clamping voltage and is housed in a DO-214AA (SMB) package. The device is actively produced and maintains full RoHS3 and REACH compliance. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component alternatives.

Substiute Parts

P1701SALRP

LittelfuseIn Stock: 3404P1701SALRP Datasheet

Current PartRFQ

SMP100LC-160

STMicroelectronicsIn Stock: 5118SMP100LC-160 Datasheet

MFR RecommendedRFQ

SMP100MC-160

STMicroelectronicsIn Stock: 4008SMP100MC-160 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P1701SALRP are qualified based on the following critical parameters that determine functional equivalence:

Substitution Criteria:

• Voltage - Clamping / Breakover: 200V nominal
• Package / Case: DO-214AA, SMB form factor
• Mounting Type: Surface Mount
• Number of Circuits: 1 element
• RoHS3 Compliance: Required
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• Product Status: Active

The STMicroelectronics SMP100 series (SMP100LC-160 and SMP100MC-160) meet all substitution criteria. Both parts operate with a 200V breakover voltage, utilize the same DO-214AA package, and maintain identical compliance certifications. The primary distinction between substitute options relates to peak pulse current ratings and capacitance specifications, which are provided for application-specific selection.

Parameter Comparison

Engineering Selection Recommendations

Both STMicroelectronics SMP100 series parts (SMP100LC-160 and SMP100MC-160) are qualified substitutes for the Littelfuse P1701SALRP based on matching voltage specifications, identical package form factors, and equivalent compliance certifications. All three parts maintain Active product status and RoHS3 compliance, ensuring long-term availability and regulatory alignment.

Selection between the two substitute options depends on application-specific current handling requirements. The SMP100LC-160 provides higher peak pulse current capacity (400 A at 8/20µs) with increased capacitance (65pF), while the SMP100MC-160 offers reduced peak pulse current (300 A at 8/20µs) with lower capacitance (50pF). Both maintain identical hold current specifications (150 mA) and off-state voltage ratings (160V).

Frequently Asked Questions (FAQ)

Q: What makes SMP100LC-160 and SMP100MC-160 suitable substitutes for P1701SALRP?

A: Both parts meet the critical substitution parameters: 200V breakover voltage, DO-214AA package, Surface Mount configuration, single-element design, RoHS3 compliance, and MSL 1 rating. All three devices maintain Active product status.

Q: What is the difference between SMP100LC-160 and SMP100MC-160?

A: The primary differences are peak pulse current ratings and capacitance. SMP100LC-160 handles 400 A peak pulse current (8/20µs) with 65pF capacitance, while SMP100MC-160 handles 300 A peak pulse current (8/20µs) with 50pF capacitance. Both share identical 200V breakover voltage, 160V off-state voltage, 100 A peak pulse current (10/1000µs), and 150 mA hold current specifications.

Q: Are the substitute parts pin-compatible with P1701SALRP?

A: Yes. All three parts use the DO-214AA (SMB) package with identical pin configuration and Surface Mount footprint compatibility.

Q: Do the substitute parts maintain the same compliance certifications?

A: Yes. SMP100LC-160 and SMP100MC-160 are both RoHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the P1701SALRP specifications.

Q: Which substitute part should be selected for my application?

A: Selection depends on transient current requirements. Applications requiring higher peak pulse current capacity should use SMP100LC-160. Applications with lower current demands may use SMP100MC-160. Both parts operate at identical voltage thresholds and hold current specifications.