SJ4025L2TP Equivalent & Substitute Parts

Part Overview

The SJ4025L2TP is a Silicon Controlled Rectifier (SCR) thyristor manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 25 A RMS on-state current. The device is packaged in TO-220-3 with isolated tab configuration (ITO-220AB) and is designed for standard recovery through-hole applications. This component is currently in active product status with full RoHS3 compliance and unlimited moisture sensitivity level. Substitute parts may be required due to inventory availability, series transitions within the Littelfuse product line, or specific application requirements related to current handling capabilities.

Substiute Parts

SJ4025L2TP

Littelfuse Inc.In Stock: 1099SJ4025L2TP Datasheet

Current PartRFQ

SJ6020L2TP

Littelfuse Inc.In Stock: 1412SJ6020L2TP Datasheet

Parametric EquivalentRFQ

SJ6025L2TP

Littelfuse Inc.In Stock: 1470SJ6025L2TP Datasheet

Parametric EquivalentRFQ

SV6016L2QTP

Littelfuse Inc.In Stock: 1987SV6016L2QTP Datasheet

Parametric EquivalentRFQ

SV6016L2TP

Littelfuse Inc.In Stock: 1843SV6016L2TP Datasheet

Parametric EquivalentRFQ

SV6025L2QTP

Littelfuse Inc.In Stock: 1709SV6025L2QTP Datasheet

Parametric EquivalentRFQ

SV6025L2TP

Littelfuse Inc.In Stock: 1915SV6025L2TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SJ4025L2TP is determined by the following key electrical and mechanical parameters: off-state voltage rating (600 V), package type (TO-220-3 with isolated tab, ITO-220AB), SCR type (standard recovery), gate trigger characteristics (Vgt 1.5 V max, Igt 10 mA max), on-state voltage drop (Vtm 1.6 V max), and hold current (Ih 35 mA max). Current-handling capacity variations are permitted within the substitute group, provided the RMS and average current ratings meet or exceed application requirements. All substitute parts listed share identical voltage ratings, gate characteristics, thermal performance range (-40°C to 150°C), packaging specifications, and regulatory compliance status (RoHS3, REACH unaffected).

The substitute parts are categorized into two series: the SJ series (SJ6020L2TP, SJ6025L2TP) and the SV series (SV6016L2QTP, SV6016L2TP, SV6025L2QTP, SV6025L2TP). Within each series, variants are distinguished by RMS current ratings: 16 A, 20 A, or 25 A RMS.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with RoHS3 compliance and REACH unaffected status, making them suitable for regulatory-compliant applications. The SJ series parts (SJ6020L2TP, SJ6025L2TP) are direct series equivalents to the primary part SJ4025L2TP and maintain identical package specifications. The SV series parts (SV6016L2QTP, SV6016L2TP, SV6025L2QTP, SV6025L2TP) represent alternative series options with equivalent electrical characteristics.

Selection between SJ6020L2TP and SJ6025L2TP depends on application current requirements: SJ6020L2TP is rated for 20 A RMS maximum, while SJ6025L2TP matches the 25 A RMS rating of the primary part. The SV6016L2QTP and SV6016L2TP variants provide reduced current capacity (16 A RMS) compared to the primary part and are suitable for lower-current applications. The SV6025L2QTP and SV6025L2TP maintain full 25 A RMS compatibility with the primary part. Parts designated with the "QTP" suffix differ only in specific packaging attributes from their "TP" counterparts while maintaining identical electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can SJ6020L2TP replace SJ4025L2TP in all applications? A: SJ6020L2TP is suitable for applications requiring maximum 20 A RMS current. If the application requires sustained currents exceeding 20 A RMS or 12.8 A average, SJ6025L2TP or an SV series 25 A part is required. All other electrical parameters remain identical.

Q: What is the difference between SJ and SV series parts? A: Both series share identical voltage ratings, gate characteristics, on-state voltage drop, temperature range, and packaging specifications. The difference is in manufacturer series designation within Littelfuse's product portfolio. Selection between series is based solely on availability and current-handling requirements.

Q: Are SV6016L2QTP and SV6016L2TP interchangeable? A: SV6016L2QTP and SV6016L2TP are electrically identical with all parameters matching. The suffix difference (QTP vs. TP) indicates variations in packaging attributes not affecting electrical function. They are mechanically and electrically interchangeable.

Q: Can SV series 16 A parts be used instead of the 25 A primary part? A: SV6016L2QTP and SV6016L2TP are suitable only for applications with maximum sustained current of 16 A RMS (10.2 A average). They provide reduced non-repeating surge current capacity (188 A/225 A versus 300 A/350 A). Use these only if application current requirements are within these limits.

Q: Are all substitute parts in the same TO-220 package? A: Yes. All parts use TO-220-3 package with isolated tab configuration (ITO-220AB). Mechanical fit and pin configuration are identical, enabling direct form-fit-function replacement.

Q: What is the inventory status of substitute parts? A: Current inventory levels are SJ6020L2TP (1321 pcs), SJ6025L2TP (1393 pcs), SV6016L2QTP (1952 pcs), SV6016L2TP (1822 pcs), SV6025L2QTP (1656 pcs), and SV6025L2TP (1883 pcs).