S8X8ES2RP Equivalent & Substitute Parts

Part Overview

The S8X8ES2RP is a sensitive gate SCR (Silicon Controlled Rectifier) rated for 800V off-state voltage with 800mA RMS current handling capability in a through-hole TO-92 package. Manufactured by Littelfuse Inc., this thyristor is designed for applications requiring controlled rectification and switching in industrial and consumer electronics. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to inventory constraints, packaging preferences, or application-specific performance requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

S8X8ES2RP

Littelfuse Inc.In Stock: 2169S8X8ES2RP Datasheet

Current PartRFQ

TS110-8A2-AP

STMicroelectronicsIn Stock: 1300TS110-8A2-AP Datasheet

MFR RecommendedRFQ

X0202NA 1BA2

STMicroelectronicsIn Stock: 8346X0202NA 1BA2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S8X8ES2RP are qualified based on the following electrical and mechanical compatibility criteria:

Critical Matching Parameters:

• Off-state voltage rating: 800V minimum
• Package type: TO-92-3 through-hole configuration
• SCR type classification: Sensitive Gate
• Operating temperature range: -40°C to 125°C minimum
• RoHS3 compliance and REACH unaffected status

Allowable Parameter Variations: Substitute parts may exceed the following specifications without affecting functional compatibility:

• Gate trigger voltage (Vgt): Up to 800mV
• Gate trigger current (Igt): Up to 200µA
• On-state voltage (Vtm): Down to 1.45V (lower is acceptable)
• On-state current (It RMS): 1.25A or higher (higher current rating is acceptable)
• Hold current (Ih): Up to 12mA
• Non-repetitive surge current (Itsm): Higher ratings acceptable

The two qualified substitutes (TS110-8A2-AP and X0202NA 1BA2) meet all critical parameters and provide enhanced current handling capabilities while maintaining electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full electrical and mechanical compatibility with the S8X8ES2RP within the specified parameter ranges. Selection between alternatives should be based on the following factors:

TS110-8A2-AP (STMicroelectronics):

• Cut Tape packaging format
• 1263 units available in inventory
• Moderate gate trigger current specification (100µA)
• Reduced on-state voltage (1.6V vs 1.7V)
• Enhanced surge current rating (20A/21A)

X0202NA 1BA2 (STMicroelectronics):

• Bulk packaging format
• 8270 units available in inventory
• Higher gate trigger current specification (200µA)
• Lowest on-state voltage (1.45V)
• Highest surge current rating (22.5A/25A)
• Matches original hold current specification (5mA)

Both parts carry ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1), meeting all regulatory and environmental requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can TS110-8A2-AP or X0202NA 1BA2 be used as direct replacements for S8X8ES2RP?

A: Yes. Both substitute parts meet all critical electrical parameters (800V off-state voltage, sensitive gate SCR type, -40 to 125°C operating range) and share identical TO-92-3 through-hole package configuration. The substitutes provide equal or superior performance within the allowed parameter ranges.

Q: What is the difference between the two substitute options?

A: The primary differences are packaging format (Cut Tape vs Bulk), inventory availability, and minor variations in gate trigger current and on-state voltage specifications. Both are electrically compatible. X0202NA 1BA2 offers higher inventory stock and lower on-state voltage performance.

Q: Are there packaging compatibility concerns when switching between these parts?

A: No. All three parts use the TO-92-3 through-hole package with formed leads. Physical dimensions and pin configurations are identical, allowing direct board-level substitution without layout modifications.

Q: Do the substitute parts have the same regulatory compliance as the original?

A: Yes. Both TS110-8A2-AP and X0202NA 1BA2 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating, matching the original S8X8ES2RP specifications.

Q: What does "sensitive gate" mean in the context of these SCRs?

A: Sensitive gate classification indicates these thyristors require lower gate trigger current (Igt) to initiate conduction compared to standard SCRs. This characteristic is maintained across all three parts in this comparison.

Q: Can I use these parts interchangeably in the same application?

A: Yes, within the electrical parameter ranges specified. The substitute parts provide enhanced current handling (1.25A RMS vs 800mA) and improved surge current ratings, making them suitable for applications requiring the original S8X8ES2RP specifications or higher performance margins.