P2600S1ALRP Equivalent & Substitute Parts

Part Overview

The P2600S1ALRP is a 220V off-state transient voltage suppressor (TVS) thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This surface-mount component in DO-214AC (SMA) packaging is designed for transient overvoltage protection applications requiring 150A peak pulse current capability. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain continuity for applications where the electrical and mechanical specifications remain within acceptable tolerances.

Substiute Parts

P2600S1ALRP

Littelfuse Inc.In Stock: 814P2600S1ALRP Datasheet

Current PartRFQ

SMP50-220

STMicroelectronicsIn Stock: 20216SMP50-220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2600S1ALRP is based on strict equivalence of critical electrical parameters that define TVS thyristor functionality in transient protection circuits. The allowed substitution criteria are:

• Voltage - Off State: 220V (exact match required)
• Voltage - Breakover: within the range of 293V to 300V
• Current - Peak Pulse (8/20µs): 150A (exact match required)
• Current - Peak Pulse (10/1000µs): 50A (exact match required)
• Current - Hold (Ih): 150mA (exact match required)
• Package / Case: DO-214AC, SMA (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Number of Elements: 1 (exact match required)

The SMP50-220 from STMicroelectronics meets all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the P2600S1ALRP and SMP50-220 are active production components with full RoHS3 compliance and REACH unaffected status. Selection between these parts is based on:

• Voltage - Breakover tolerance: The P2600S1ALRP specifies 300V breakover, while the SMP50-220 specifies 293V. Both values fall within acceptable operating margins for 220V off-state TVS thyristors.
• Capacitance difference: The P2600S1ALRP has 50pF capacitance while the SMP50-220 has 25pF. This difference may affect circuit performance in applications sensitive to parasitic capacitance, particularly in high-frequency or high-impedance circuits.
• Regulatory compliance: Both parts meet identical compliance requirements (RoHS3, REACH unaffected, EAR99 ECCN classification).
• Inventory availability: The SMP50-220 has significantly higher stock levels (20,200 pcs vs. 742 pcs), which may influence supply chain decisions.

Frequently Asked Questions (FAQ)

Q: Can the SMP50-220 be used as a direct replacement for the P2600S1ALRP?

A: The SMP50-220 meets all critical electrical parameters for substitution: 220V off-state voltage, 150A peak pulse current (8/20µs), 50A peak pulse current (10/1000µs), and 150mA holding current. Both components use identical DO-214AC (SMA) surface-mount packaging. The breakover voltage difference (293V vs. 300V) and capacitance difference (25pF vs. 50pF) must be evaluated against specific circuit requirements.

Q: What is the significance of the capacitance difference between these parts?

A: The P2600S1ALRP has 50pF capacitance while the SMP50-220 has 25pF. In transient protection applications, capacitance affects circuit impedance and response characteristics. Applications with strict capacitance requirements should verify compatibility before substitution.

Q: Are both parts suitable for the same mounting process?

A: Yes. Both the P2600S1ALRP and SMP50-220 are surface-mount components in DO-214AC (SMA) packaging, compatible with standard SMT assembly processes and reflow soldering.

Q: Do both parts have the same regulatory compliance?

A: Yes. Both components are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8541.30.0080. Both have MSL rating of 1 (unlimited moisture sensitivity).

Q: Which part should be selected for new designs?

A: Selection should be based on specific circuit requirements regarding breakover voltage tolerance and capacitance specifications. Both parts are active production components suitable for new designs. The SMP50-220 offers higher inventory availability.