S2N1RP SCR 200V 1A COMPAK Equivalent & Substitute Parts

Part Overview

The S2N1RP is a Standard Recovery SCR (Silicon Controlled Rectifier) rated for 200V off-state voltage and 1A RMS on-state current in a surface mount Compak package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain functional compatibility while offering improved availability and active product status.

Substiute Parts

S2N1RP

Littelfuse Inc.In Stock: 5115S2N1RP Datasheet

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S4N1RP

Littelfuse Inc.In Stock: 34103S4N1RP Datasheet

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S6N1RP

Littelfuse Inc.In Stock: 3755S6N1RP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2N1RP are selected based on strict electrical and mechanical compatibility criteria. The following parameters determine valid substitution:

Mandatory Compatibility Parameters:

• SCR Type: Standard Recovery (must match)
• Package / Case: DO-214AA, SMB (3 Leads), Compak (must match)
• Mounting Type: Surface Mount (must match)
• Voltage - Gate Trigger (Vgt) Max: 1.5 V (must match)
• Current - Gate Trigger (Igt) Max: 10 mA (must match)
• Voltage - On State (Vtm) Max: 1.6 V (must match)
• Current - On State (It RMS) Max: 1 A (must match)
• Current - Hold (Ih) Max: 30 mA (must match)
• Operating Temperature: -40°C ~ 125°C (must match)

Allowable Variation Parameter:

• Voltage - Off State: May be equal to or greater than 200V (higher voltage rating provides backward compatibility)

The S4N1RP (400V) and S6N1RP (600V) are valid substitutes because they maintain all mandatory electrical and mechanical parameters while offering higher off-state voltage ratings, making them suitable for applications requiring the S2N1RP's specifications.

Parameter Comparison

Engineering Selection Recommendations

Both S4N1RP and S6N1RP are active products with full ROHS3 compliance and identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.30.0080). The S4N1RP offers 400V off-state voltage rating with 34,000 units in stock, providing immediate availability for high-volume applications. The S6N1RP provides 600V off-state voltage rating with 3,677 units available, suitable for applications requiring enhanced voltage margin.

Selection between S4N1RP and S6N1RP depends on circuit voltage requirements. Both maintain identical gate trigger characteristics, on-state voltage drop, holding current, and thermal operating range as the obsolete S2N1RP. The higher voltage ratings of substitute parts ensure backward compatibility with existing S2N1RP designs while eliminating obsolescence risk.

Frequently Asked Questions (FAQ)

Q: Can S4N1RP or S6N1RP directly replace S2N1RP in existing designs?

A: Yes. Both substitute parts maintain identical gate trigger voltage (1.5V max), gate trigger current (10mA max), on-state voltage drop (1.6V max), on-state current rating (1A RMS), holding current (30mA max), and operating temperature range (-40°C to 125°C). The higher off-state voltage ratings (400V and 600V respectively) provide enhanced voltage margin while maintaining full electrical compatibility.

Q: Are there any package or mounting differences?

A: No. All three parts use identical DO-214AA SMB (3 Leads) Compak surface mount packaging. PCB footprints and reflow soldering profiles are identical.

Q: What is the difference between S4N1RP and S6N1RP?

A: The primary difference is off-state voltage rating: S4N1RP is rated for 400V while S6N1RP is rated for 600V. All other electrical parameters, including gate trigger characteristics, on-state performance, and thermal ratings, are identical. Selection depends on the maximum voltage the circuit will experience.

Q: Are substitute parts RoHS compliant?

A: Yes. Both S4N1RP and S6N1RP are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original S2N1RP.

Q: What inventory levels are available?

A: S4N1RP has 34,000 units in stock (Tape & Reel packaging). S6N1RP has 3,677 units in stock (Tape & Reel packaging). The S2N1RP original part has 5,100 units available but is classified as obsolete.