S4006DTP Equivalent & Substitute Parts

Part Overview

The S4006DTP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc., rated for 400V off-state voltage with 6A RMS on-state current capability. This component is classified as a Standard Recovery thyristor in Surface Mount TO-252 (DPAK) packaging. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameter ranges for thyristor applications requiring similar switching characteristics and thermal performance.

Substiute Parts

S4006DTP

Littelfuse Inc.In Stock: 2022S4006DTP Datasheet

Current PartRFQ

TN815-600B-TR

STMicroelectronicsIn Stock: 1583TN815-600B-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S4006DTP is determined by the following critical parameters:

• Off-State Voltage Rating: Substitute must equal or exceed 400V to maintain blocking capability
• On-State Current (RMS): Substitute must support minimum 6A RMS current handling
• On-State Voltage Drop (Vtm): Must not exceed 1.6V maximum to ensure thermal compatibility
• Gate Trigger Parameters: Vgt and Igt must remain within specified maximums for gate drive circuit compatibility
• Package Type: Surface Mount DPAK (TO-252-3) configuration required for mechanical compatibility
• Recovery Type: Standard Recovery classification maintained across substitutes
• Temperature Range: Operating range of -40°C to 125°C required

The identified substitute TN815-600B-TR from STMicroelectronics meets these criteria with higher voltage rating (600V) and increased current capacity (8A RMS), providing enhanced performance margin while maintaining electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the S4006DTP and TN815-600B-TR maintain Active product status with full RoHS3 compliance and REACH unaffected classification. Selection between these components is based on application voltage and current requirements:

S4006DTP Selection: Applications requiring exactly 400V blocking voltage with 6A RMS current capacity. Suitable for designs with voltage margins optimized for 400V system specifications.

TN815-600B-TR Selection: Applications where higher voltage margin (600V) and increased current capacity (8A RMS) provide design flexibility. The lower gate trigger voltage (1.3V vs 1.5V) may reduce gate drive circuit power requirements. Both components share identical on-state voltage drop (1.6V) and operating temperature range, ensuring thermal performance equivalence.

Both parts are surface mount DPAK packages with identical mechanical footprints, enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can TN815-600B-TR directly replace S4006DTP in existing designs?

A: Yes, within the specified electrical parameters. The TN815-600B-TR provides higher voltage (600V vs 400V) and current (8A vs 6A) ratings while maintaining identical on-state voltage drop (1.6V), operating temperature range (-40 to 125°C), and DPAK package configuration. Gate trigger voltage is lower (1.3V vs 1.5V), which may reduce gate drive power consumption.

Q: What are the key differences between these SCR models?

A: Primary differences are off-state voltage rating (400V vs 600V), on-state current capacity (6A vs 8A RMS), and gate trigger voltage (1.5V vs 1.3V maximum). On-state voltage drop, hold current, and package type remain equivalent.

Q: Are there mechanical compatibility concerns?

A: No. Both components use identical TO-252-3 DPAK packaging with 2 leads plus tab configuration. PCB footprints are mechanically compatible without modification.

Q: Do compliance certifications differ between these parts?

A: No. Both S4006DTP and TN815-600B-TR maintain RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating.

Q: Which part should be selected for new designs?

A: Selection depends on application voltage and current requirements. For 400V systems with 6A maximum current, either part is suitable. For systems requiring voltage margin above 400V or current capacity above 6A, TN815-600B-TR provides enhanced performance headroom.