S2065KTP Equivalent & Substitute Parts

Part Overview

The S2065KTP is a 200V 65A Standard Recovery SCR (Silicon Controlled Rectifier) in TO-218 Isolated Tab package manufactured by Littelfuse Inc. This thyristor is designed for high-current switching applications requiring controlled rectification at 200V off-state voltage. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring similar electrical characteristics and mechanical compatibility.

Substiute Parts

S2065KTP

Littelfuse Inc.In Stock: 782S2065KTP Datasheet

Current PartRFQ

S4065KTP

Littelfuse Inc.In Stock: 941S4065KTP Datasheet

UpgradeRFQ

S6065KTP

Littelfuse Inc.In Stock: 1589S6065KTP Datasheet

UpgradeRFQ

BTW69-600RG

STMicroelectronicsIn Stock: 1181BTW69-600RG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the S2065KTP is determined by the following critical parameters:

Electrical Compatibility Criteria:

• SCR Type: Standard Recovery (maintains switching characteristics)
• Operating Temperature Range: -40°C to 125°C (functional envelope)
• Gate Trigger Voltage (Vgt) and Current (Igt): Must support control circuit requirements
• On-State Voltage (Vtm): Determines conduction losses
• Hold Current (Ih): Ensures latching behavior

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (PCB integration method)
• Package / Case: TO-218-3 Isolated Tab or equivalent footprint

Voltage Rating Consideration: The S2065KTP operates at 200V off-state. Substitutes with higher voltage ratings (400V, 600V) are electrically compatible for 200V applications, as they maintain all other electrical parameters within acceptable ranges while providing additional voltage margin. Lower voltage ratings are not acceptable substitutes.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Littelfuse Series):

S4065KTP and S6065KTP are direct Littelfuse equivalents with identical electrical characteristics to the S2065KTP except for increased voltage ratings. Both parts maintain the same TO-218-3 Isolated Tab package, identical gate trigger specifications, and on-state voltage performance. S4065KTP provides 400V rating; S6065KTP provides 600V rating. Both are Active status products with ROHS3 compliance and REACH Unaffected designation.

Alternative Substitute (STMicroelectronics):

BTW69-600RG is a manufacturer-recommended alternative from STMicroelectronics. This part operates at 600V off-state voltage with Standard Recovery characteristics and full temperature range compatibility. Key differences include TOP-3 package (different footprint from TO-218-3), reduced RMS current rating (50A vs. 65A), lower gate trigger voltage (1.3V vs. 2V), and higher hold current (150mA vs. 80mA). BTW69-600RG is Active status with ROHS3 compliance and REACH Unaffected designation.

Selection Basis:

• All substitutes maintain Standard Recovery SCR type and -40°C to 125°C operating range
• All substitutes are ROHS3 compliant and carry Active product status
• Littelfuse substitutes preserve identical package footprint and electrical control characteristics
• STMicroelectronics substitute requires PCB layout modification due to TOP-3 package and provides lower current capacity

Frequently Asked Questions (FAQ)

Q: Can S4065KTP or S6065KTP be used as direct replacements for S2065KTP?

A: Yes. Both parts are Littelfuse Standard Recovery SCRs with identical TO-218-3 Isolated Tab packages, matching gate trigger specifications (2V max Vgt, 50mA max Igt), and identical on-state voltage (1.8V max Vtm). The higher voltage ratings (400V and 600V) are compatible with 200V applications and provide additional voltage margin. No circuit modifications are required.

Q: What are the key differences between S6065KTP and BTW69-600RG?

A: Both operate at 600V off-state voltage and Standard Recovery type. S6065KTP maintains 65A RMS current, 2V gate trigger voltage, and TO-218-3 package. BTW69-600RG has 50A RMS current, 1.3V gate trigger voltage, and TOP-3 package. The package difference requires PCB layout modification. The lower current rating and different gate characteristics may affect circuit performance in high-current or tight-tolerance applications.

Q: Is package compatibility critical for substitution?

A: Yes. S2065KTP, S4065KTP, and S6065KTP share TO-218-3 Isolated Tab footprint and are pin-compatible. BTW69-600RG uses TOP-3 package with different pin configuration and mounting hole pattern, requiring PCB redesign. Verify mechanical fit before selecting BTW69-600RG.

Q: Are all substitutes RoHS compliant?

A: Yes. S4065KTP, S6065KTP, and BTW69-600RG are all ROHS3 compliant. All substitutes are also REACH Unaffected, ensuring regulatory compliance for new designs.

Q: What is the current availability status of substitutes?

A: S4065KTP (845 pcs), S6065KTP (1506 pcs), and BTW69-600RG (1115 pcs) are all Active status products with current inventory. The S2065KTP is Obsolete and no longer manufactured.