S4010VS3 Equivalent & Substitute Parts

Part Overview

The S4010VS3 is a 400V, 10A sensitive gate SCR (Silicon Controlled Rectifier) in TO-251AA packaging manufactured by Littelfuse Inc. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The S4010VS3 serves as a thyristor for power control and switching applications requiring gate-triggered activation in industrial and consumer electronics.

Substiute Parts

S4010VS3

Littelfuse Inc.In Stock: 3160S4010VS3 Datasheet

Current PartRFQ

S4010VS3TP

Littelfuse Inc.In Stock: 699S4010VS3TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S4010VS3 is determined by electrical and mechanical parameter equivalence. The critical parameters defining substitutability are:

• Off-state voltage rating: 400 V
• Gate trigger voltage and current: 800 mV (Max) and 500 µA (Max)
• On-state voltage and current: 1.6 V (Max) and 10 A RMS (Max)
• Hold current: 8 mA (Max)
• Sensitive gate SCR type classification
• Through-hole mounting with TO-251 package family compatibility
• Operating temperature range: -40°C to 110°C
• RoHS3 compliance and MSL Level 1

The S4010VS3TP meets all these criteria and qualifies as a direct electrical and mechanical equivalent. The primary distinction is packaging format (tube vs. bulk) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The S4010VS3TP is the direct substitute for the obsolete S4010VS3. Both components are manufactured by Littelfuse Inc. and share identical electrical specifications and package geometry. The S4010VS3TP maintains active product status, ensuring continued availability and supply chain reliability. Both parts comply with ROHS3 standards and carry MSL Level 1 classification, indicating no moisture sensitivity constraints during storage and handling.

Selection of S4010VS3TP over S4010VS3 is justified by product lifecycle status. The S4010VS3TP is the current production equivalent and is the appropriate choice for new designs and component replenishment.

Frequently Asked Questions (FAQ)

Q: Can S4010VS3TP directly replace S4010VS3 in existing applications?

A: Yes. The S4010VS3TP is electrically and mechanically identical to the S4010VS3. All electrical parameters, including voltage ratings, current ratings, gate trigger specifications, and operating temperature range are equivalent. The TO-251AA package geometry is identical, permitting direct PCB substitution.

Q: What is the difference between S4010VS3 and S4010VS3TP?

A: The components are electrically identical. The primary difference is packaging format: S4010VS3 is supplied in bulk packaging, while S4010VS3TP is supplied in tube packaging. Additionally, S4010VS3TP maintains active product status, whereas S4010VS3 is obsolete.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and carry identical MSL Level 1 ratings. Both are assigned the same ECCN (EAR99) and HTSUS (8541.30.0080) classifications.

Q: What is the significance of "Sensitive Gate" classification?

A: Sensitive Gate designation indicates the SCR requires lower gate trigger voltage and current to activate compared to standard SCRs. This classification is maintained across both the S4010VS3 and S4010VS3TP, ensuring equivalent gate drive requirements in circuit applications.

Q: Is the TO-251AA package compatible with TO-251 (V-Pak/I-Pak) footprints?

A: Yes. The TO-251-3 Short Leads package designation applies to both components. The S4010VS3TP supplier device package notation (TO-251 V-Pak/I-Pak) and the S4010VS3 package designation (TO-251AA) refer to the same physical package family with identical lead spacing and mounting requirements.