SJ6020N2ARP Equivalent & Substitute Parts

Part Overview

The SJ6020N2ARP is a 600 V, 20 A standard recovery silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc. in Surface Mount TO-263 (D2PAK) packaging. This thyristor is designed for high-voltage switching applications requiring reliable gate triggering and thermal performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified to address application requirements including current capacity variations, inventory availability, and design flexibility while maintaining electrical and mechanical compatibility within the SJ series platform.

Substiute Parts

SJ6020N2ARP

Littelfuse Inc.In Stock: 1052SJ6020N2ARP Datasheet

Current PartRFQ

SJ6016N2RP

Littelfuse Inc.In Stock: 1398SJ6016N2RP Datasheet

Parametric EquivalentRFQ

SJ6020N2RP

Littelfuse Inc.In Stock: 1677SJ6020N2RP Datasheet

Parametric EquivalentRFQ

SJ6025N2RP

Littelfuse Inc.In Stock: 1459SJ6025N2RP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SJ6020N2ARP is determined by the following criteria:

Fixed Parameters (Non-Negotiable):

• Voltage - Off State: 600 V
• Voltage - Gate Trigger (Vgt) Max: 1.5 V
• Current - Gate Trigger (Igt) Max: 10 mA
• Voltage - On State (Vtm) Max: 1.6 V
• Current - Hold (Ih) Max: 35 mA
• Current - Off State Max: 10 µA
• SCR Type: Standard Recovery
• Operating Temperature: -40°C to 150°C (TJ)
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

Variable Parameters (Substitution Basis):

• Current - On State (It RMS) Max: 16 A to 25 A range
• Current - On State (It AV) Max: 10 A to 16 A range
• Current - Non Rep. Surge (Itsm): 188 A to 350 A range

All substitute parts maintain identical gate control characteristics, thermal operating range, and package specifications. Substitution is valid when the application current requirement does not exceed the substitute part's rated current capacity.

Parameter Comparison

Engineering Selection Recommendations

SJ6020N2ARP (Primary Part): Select when application requires 20 A RMS current capacity with 225 A / 300 A non-repetitive surge rating. This part is the baseline specification and maintains full Active product status with standard inventory availability (1012 pcs).

SJ6016N2RP (Lower Current Alternative): Select for applications requiring maximum 16 A RMS current capacity. This substitute provides reduced current rating with corresponding lower surge current capability (188 A / 225 A). Use when design margin permits lower current specification or when inventory prioritization favors this variant (1304 pcs available). Gate control and thermal characteristics remain identical to SJ6020N2ARP.

SJ6020N2RP (Packaging Variant): Select as direct functional equivalent to SJ6020N2ARP with identical electrical specifications. This part differs only in packaging configuration (standard Tape & Reel without "A" designation). Electrical performance and current ratings are equivalent. Highest inventory availability (1632 pcs) supports supply chain flexibility.

SJ6025N2RP (Higher Current Alternative): Select for applications requiring maximum 25 A RMS current capacity with enhanced surge rating (300 A / 350 A). This substitute provides increased current margin and is suitable for designs with higher power dissipation requirements. All gate control and thermal specifications remain compatible with SJ6020N2ARP. Inventory availability: 1400 pcs.

All substitute parts maintain Active product status, ROHS3 compliance, and unlimited MSL rating. Selection is based on application current requirement and surge protection margin.

Frequently Asked Questions (FAQ)

Q: Can SJ6016N2RP replace SJ6020N2ARP in all applications?

A: SJ6016N2RP is a valid substitute only when the application current requirement does not exceed 16 A RMS. The part maintains identical gate trigger voltage, on-state voltage, and operating temperature range. If the design requires 20 A RMS or higher current capacity, SJ6016N2RP is not suitable.

Q: What is the difference between SJ6020N2ARP and SJ6020N2RP?

A: Both parts have identical electrical specifications: 600 V off-state voltage, 20 A RMS current rating, and 225 A / 300 A non-repetitive surge rating. The difference is in packaging designation. SJ6020N2RP is a direct functional equivalent suitable for applications where packaging variant flexibility is acceptable.

Q: Is SJ6025N2RP backward compatible with SJ6020N2ARP?

A: Yes. SJ6025N2RP maintains all gate control parameters (1.5 V trigger voltage, 10 mA trigger current) and thermal operating range (-40°C to 150°C). The higher 25 A RMS rating provides additional current margin. Substitution is valid for any application designed for SJ6020N2ARP, as the higher-rated part will not degrade performance.

Q: Are all substitute parts in the same TO-263 package?

A: Yes. All substitute parts use TO-263-3 (D2PAK) Surface Mount packaging with 2 leads plus tab. PCB layout and thermal management design remain unchanged across all substitutes.

Q: Do substitute parts have the same RoHS and compliance status?

A: Yes. All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all variants. ECCN and HTSUS classifications are identical.

Q: What is the hold current specification across all parts?

A: All substitute parts maintain identical hold current (Ih) maximum of 35 mA and off-state current (Ioff) maximum of 10 µA. Gate control behavior is consistent across the SJ6020 series.

Q: Can I use SJ6016N2RP if my application peaks at 18 A?

A: No. SJ6016N2RP is rated for maximum 16 A RMS. Operating above rated current will exceed thermal and electrical stress limits. Use SJ6020N2ARP or SJ6025N2RP for applications with 18 A or higher requirements.