S8X8ES2AP Equivalent & Substitute Parts

Part Overview

The S8X8ES2AP is a sensitive gate SCR (Silicon Controlled Rectifier) rated for 800V off-state voltage with 800mA RMS current capability in a through-hole TO-92 package. Manufactured by Littelfuse Inc., this thyristor is designed for AC switching and control applications requiring low gate trigger current. The part is active and in production with ROHS3 compliance. 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

S8X8ES2AP

Littelfuse Inc.In Stock: 820S8X8ES2AP 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

Substitution eligibility for the S8X8ES2AP is determined by the following critical parameters:

• Voltage Rating: Off-state voltage must equal 800V
• Package Type: Must be TO-92-3 through-hole configuration
• SCR Classification: Must be sensitive gate type
• Operating Temperature: Must support -40°C to 125°C range
• RoHS Compliance: Must maintain ROHS3 compliance status

The substitute parts TS110-8A2-AP (STMicroelectronics) and X0202NA 1BA2 (STMicroelectronics) meet these core requirements. Both are 800V sensitive gate SCRs in TO-92-3 packages with identical operating temperature ranges and RoHS3 compliance. Differences in gate trigger current, on-state voltage, hold current, and surge current ratings fall within acceptable tolerance ranges for this product category and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status and full ROHS3 compliance, meeting regulatory requirements equivalent to the S8X8ES2AP. The TS110-8A2-AP is supplied in cut tape packaging, while the X0202NA 1BA2 is supplied in bulk packaging. Selection between substitutes should be based on packaging requirements and inventory availability. All three parts share identical voltage ratings, temperature operating ranges, and sensitive gate classification, ensuring functional compatibility in applications designed for the S8X8ES2AP.

Frequently Asked Questions (FAQ)

Q: Can TS110-8A2-AP replace S8X8ES2AP in all applications? A: Yes. Both parts share identical 800V off-state voltage, 800mV gate trigger voltage, -40°C to 125°C operating temperature, TO-92-3 package, and sensitive gate classification. The TS110-8A2-AP has higher current ratings (1.25A RMS vs. 800mA RMS), which provides additional design margin without affecting compatibility.

Q: What is the difference between cut tape and bulk packaging? A: TS110-8A2-AP is supplied in cut tape (CT) packaging for automated assembly processes. X0202NA 1BA2 is supplied in bulk packaging for manual handling or custom packaging. Both contain identical components; packaging selection depends on manufacturing process requirements.

Q: Are there differences in gate trigger current between the parts? A: Yes. S8X8ES2AP has a maximum gate trigger current of 50µA, TS110-8A2-AP is 100µA, and X0202NA 1BA2 is 200µA. All values remain within the sensitive gate classification and do not affect substitution eligibility for standard switching applications.

Q: Do all substitute parts meet the same compliance standards? A: Yes. S8X8ES2AP, TS110-8A2-AP, and X0202NA 1BA2 are all ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, ensuring equivalent regulatory status.

Q: Which substitute offers the best on-state voltage performance? A: X0202NA 1BA2 has the lowest maximum on-state voltage at 1.45V, compared to 1.7V for S8X8ES2AP and 1.6V for TS110-8A2-AP. Lower on-state voltage reduces power dissipation in conducting state.