S8008RTP Equivalent & Substitute Parts

Part Overview

The S8008RTP is an 800V, 8A Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc. in a TO-220AB-R package. This thyristor is designed for standard recovery applications requiring high voltage blocking capability with moderate current handling. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

S8008RTP

Littelfuse Inc.In Stock: 1996S8008RTP Datasheet

Current PartRFQ

TYN810RG

STMicroelectronicsIn Stock: 1191TYN810RG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The TYN810RG from STMicroelectronics qualifies as a parametric equivalent based on the following criteria:

Matching Parameters:

• Off-state voltage: 800V (identical)
• Gate trigger voltage (Vgt): 1.5V maximum (identical)
• Gate trigger current (Igt): 15mA maximum (identical)
• On-state voltage (Vtm): 1.6V maximum (identical)
• Hold current (Ih): 30mA maximum (identical)
• Off-state leakage current: 10µA maximum (identical)
• Operating temperature range: -40°C to 125°C (identical)
• Package type: TO-220-3 (identical mechanical compatibility)
• SCR type: Standard Recovery (identical)
• RoHS3 compliance: Yes (identical)

Allowable Variance:

• Current - On State (It RMS): TYN810RG rated at 10A versus S8008RTP at 8A. The substitute part exceeds the original specification, making it suitable for applications within the 8A envelope.
• Non-repetitive surge current: TYN810RG rated at 100A/105A versus S8008RTP at 83A/100A. The substitute meets or exceeds surge capability.

Parameter Comparison

Engineering Selection Recommendations

Both S8008RTP and TYN810RG are active production parts with full RoHS3 compliance and REACH unaffected status. The TYN810RG is suitable for direct substitution in applications designed for the S8008RTP, provided the circuit design accommodates the higher current rating (10A versus 8A). The identical blocking voltage, gate characteristics, and thermal operating range ensure functional compatibility. Both parts are classified under ECCN EAR99 and HTSUS 8541.30.0080. Selection between these parts should be based on availability, lead time, and cost considerations, as electrical performance parameters are equivalent within the specified operating envelope.

Frequently Asked Questions (FAQ)

Q: Can TYN810RG replace S8008RTP in existing designs? A: Yes. The TYN810RG meets all critical electrical parameters of the S8008RTP. The higher current rating (10A versus 8A) does not create compatibility issues for circuits designed around the 8A specification.

Q: Are the packages mechanically identical? A: Yes. Both parts use the TO-220-3 package with identical pin configuration and thermal characteristics, allowing direct PCB substitution without layout modifications.

Q: What is the primary difference between these parts? A: The TYN810RG has a higher on-state current rating (10A RMS versus 8A RMS) and slightly higher non-repetitive surge current capability. All other electrical characteristics are identical.

Q: Do both parts meet the same compliance standards? A: Yes. Both S8008RTP and TYN810RG are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: Is gate trigger behavior identical between these parts? A: Yes. Both parts specify identical maximum gate trigger voltage (1.5V) and gate trigger current (15mA), ensuring equivalent gate drive requirements and circuit behavior.

Q: Can these parts be used interchangeably in high-temperature applications? A: Yes. Both parts operate across the identical temperature range of -40°C to 125°C with identical thermal specifications.