S4006LS3TP Equivalent & Substitute Parts

Part Overview

The S4006LS3TP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc., rated for 400V off-state voltage with 6A RMS current handling capability. This sensitive gate thyristor is housed in an isolated TO-220-3 package and is designed for through-hole mounting applications. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the allowed parameter range for this thyristor category.

Substiute Parts

S4006LS3TP

Littelfuse Inc.In Stock: 732S4006LS3TP Datasheet

Current PartRFQ

S4008LS3TP

Littelfuse Inc.In Stock: 1771S4008LS3TP Datasheet

Parametric EquivalentRFQ

S4010LS3TP

Littelfuse Inc.In Stock: 2113S4010LS3TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S4006LS3TP are qualified based on the following criteria:

Maintained Parameters (Must Match):

• Off-state voltage: 400V
• Gate trigger voltage (Vgt): 800 mV maximum
• Gate trigger current (Igt): 500 µA maximum
• On-state voltage (Vtm): 1.6V maximum
• Hold current (Ih): 8 mA maximum
• Off-state current: 5 µA maximum
• Operating temperature range: -40°C to 110°C
• SCR type: Sensitive Gate
• Package: TO-220-3 Full Pack, Isolated Tab
• Mounting: Through Hole

Variable Parameters (Allowed to Differ):

• Current - On State (It RMS): Higher ratings are acceptable for applications requiring increased current capacity
• Current - On State (It AV): Proportional increase with RMS rating

The substitute parts S4008LS3TP and S4010LS3TP maintain all critical electrical and mechanical parameters while offering increased RMS current ratings of 8A and 10A respectively, making them suitable for applications where the S4006LS3TP's 6A rating is insufficient.

Parameter Comparison

Engineering Selection Recommendations

All three parts—S4006LS3TP, S4008LS3TP, and S4010LS3TP—are active production components from Littelfuse Inc. with identical compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification). Selection between these parts is determined by application current requirements:

S4006LS3TP is specified for applications requiring up to 6A RMS continuous current handling.

S4008LS3TP provides 8A RMS capability and is selected when the application current demand exceeds the S4006LS3TP rating but remains within 8A.

S4010LS3TP offers 10A RMS capacity for applications requiring the highest current rating within this parameter family.

All three parts share identical gate trigger characteristics, on-state voltage performance, and thermal operating range, ensuring functional interchangeability within their respective current ratings. The choice between parts depends solely on the maximum continuous current requirement of the application circuit.

Frequently Asked Questions (FAQ)

Q: Can S4008LS3TP or S4010LS3TP be used as direct replacements for S4006LS3TP?

A: Yes, both S4008LS3TP and S4010LS3TP are direct mechanical and electrical substitutes for S4006LS3TP. They maintain identical gate trigger voltage, on-state voltage, hold current, and operating temperature specifications. The higher RMS current ratings do not affect compatibility in circuits designed for the S4006LS3TP.

Q: What is the primary difference between these three parts?

A: The primary difference is the maximum RMS current rating: S4006LS3TP (6A), S4008LS3TP (8A), and S4010LS3TP (10A). All other electrical and mechanical parameters remain constant.

Q: Are these parts pin-compatible?

A: Yes. All three parts use the TO-220-3 Full Pack isolated tab package with identical pinout and mounting configuration, ensuring direct mechanical compatibility.

Q: Do these parts require different gate drive circuits?

A: No. All three parts have identical gate trigger voltage (800 mV maximum) and gate trigger current (500 µA maximum) specifications, allowing the same gate drive circuit design to be used across all three parts.

Q: What compliance certifications apply to all substitute parts?

A: All three parts carry ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification. Moisture sensitivity level is 1 (Unlimited) for all parts.