S2008DRP Equivalent & Substitute Parts

Part Overview

The S2008DRP is a 200V 8A standard recovery SCR in TO-252 (DPAK) surface mount packaging manufactured by Littelfuse Inc. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The S2008DRP serves as a thyristor for switching and control applications requiring 200V off-state voltage capability with 8A RMS current handling.

Substiute Parts

S2008DRP

Littelfuse Inc.In Stock: 3815S2008DRP Datasheet

Current PartRFQ

S4008DRP

Littelfuse Inc.In Stock: 1089S4008DRP Datasheet

UpgradeRFQ

S6008DRP

Littelfuse Inc.In Stock: 3982S6008DRP Datasheet

UpgradeRFQ

TN815-600B-TR

STMicroelectronicsIn Stock: 1583TN815-600B-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the S2008DRP is determined by the following critical parameters:

• Package compatibility: All substitutes must use TO-252-3 DPAK surface mount packaging to ensure PCB footprint compatibility
• SCR type: Standard recovery thyristor classification must be maintained
• Current rating: 8A RMS current handling capability is required
• Operating temperature range: -40°C to 125°C minimum
• Gate trigger characteristics: Vgt (Max) 1.5V and Igt (Max) 15mA define gate drive requirements
• On-state voltage: Vtm (Max) 1.6V establishes conduction losses
• Hold current: Ih (Max) 30mA or lower ensures reliable latching behavior

Substitutes are grouped into two categories:

Upgrade substitutes (higher voltage rating, same current): S4008DRP (400V) and S6008DRP (600V) provide higher off-state voltage capability while maintaining 8A RMS current and identical package/gate characteristics. These are direct pin-compatible upgrades suitable for applications where higher voltage margin is beneficial.

Cross-manufacturer substitute (equivalent voltage and current): TN815-600B-TR from STMicroelectronics provides 600V 8A capability in identical DPAK packaging with comparable gate trigger specifications, offering an alternative source for designs requiring higher voltage than the original 200V rating.

Parameter Comparison

Engineering Selection Recommendations

For direct 200V replacement with active product status: The S4008DRP provides the closest functional match as a Littelfuse product with identical gate trigger specifications (Vgt 1.5V max, Igt 15mA max) and on-state voltage (1.6V max). The 400V off-state rating is a superset of the 200V requirement, making it suitable for applications where the original 200V margin is adequate. S4008DRP carries ROHS3 compliance and active product status.

For higher voltage margin with active product status: The S6008DRP offers 600V off-state capability while maintaining all other electrical characteristics identical to S4008DRP. This part is recommended for designs requiring enhanced voltage headroom or for new designs where 600V rating provides system-level benefits. S6008DRP is ROHS3 compliant with active product status and higher inventory availability (3900 pcs).

For cross-manufacturer sourcing: The TN815-600B-TR from STMicroelectronics provides 600V 8A capability in identical DPAK packaging. This part features slightly lower gate trigger voltage (1.3V max vs 1.5V max) and lower off-state leakage current (5µA vs 10µA), with a marginally higher hold current specification (40mA vs 30mA). TN815-600B-TR is ROHS3 compliant and active. This option is suitable when Littelfuse supply is constrained or when the improved leakage characteristics are beneficial.

All substitute parts maintain identical package footprint (TO-252-3 DPAK), surface mount compatibility, and operating temperature range (-40°C to 125°C), ensuring direct PCB compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can S4008DRP or S6008DRP be used as direct replacements for S2008DRP on existing PCBs?

A: Yes. All three parts use identical TO-252-3 DPAK surface mount packaging with the same pinout and footprint. The higher voltage ratings (400V and 600V) are fully backward compatible with 200V applications. No PCB layout changes are required.

Q: What is the difference between S4008DRP and S6008DRP?

A: Both parts are manufactured by Littelfuse with identical electrical characteristics except for off-state voltage rating. S4008DRP is rated 400V, while S6008DRP is rated 600V. Selection depends on the application's voltage requirements and desired safety margin. Both are ROHS3 compliant and active products.

Q: How does TN815-600B-TR compare to the Littelfuse options?

A: TN815-600B-TR is a STMicroelectronics product offering 600V 8A capability in the same DPAK package. Key differences include lower gate trigger voltage (1.3V vs 1.5V), lower off-state leakage (5µA vs 10µA), and slightly higher hold current (40mA vs 30mA). These differences are within normal device variation and do not affect pin compatibility or basic functionality.

Q: Is the S2008DRP still available for procurement?

A: S2008DRP is classified as obsolete. While 3800 pcs are reported in stock, new procurement should transition to active products: S4008DRP, S6008DRP, or TN815-600B-TR.

Q: Do all substitutes meet RoHS compliance requirements?

A: S4008DRP, S6008DRP, and TN815-600B-TR are all ROHS3 compliant. The original S2008DRP is RoHS non-compliant. Designs requiring RoHS compliance must use one of the three substitute parts.

Q: What gate drive circuit modifications are needed when switching between these parts?

A: No modifications are required. All parts share identical gate trigger specifications (Vgt 1.5V max, Igt 15mA max for Littelfuse parts; Vgt 1.3V max for TN815-600B-TR). The lower gate trigger voltage of TN815-600B-TR provides improved gate drive margin but does not require circuit changes.

Q: Which substitute should be selected for new designs?

A: S6008DRP is recommended for new designs. It offers the highest voltage rating (600V), active product status, ROHS3 compliance, and the highest inventory availability (3900 pcs). This selection provides maximum design flexibility and supply chain stability.