S2025NTP Equivalent & Substitute Parts

Part Overview

The S2025NTP is a Silicon Controlled Rectifier (SCR) rated for 200V off-state voltage and 25A RMS on-state current in a Surface Mount TO-263 (D2PAK) package, manufactured by Littelfuse Inc. This component is classified as Obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts maintain functional compatibility through matching electrical characteristics and identical mechanical packaging while offering enhanced voltage ratings or active product status.

Substiute Parts

S2025NTP

Littelfuse Inc.In Stock: 1131S2025NTP Datasheet

Current PartRFQ

S4025NTP

Littelfuse Inc.In Stock: 2365S4025NTP Datasheet

UpgradeRFQ

S6025NTP

LittelfuseIn Stock: 697S6025NTP Datasheet

UpgradeRFQ

TN2540-600G-TR

STMicroelectronicsIn Stock: 1145TN2540-600G-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S2025NTP is determined by the following criteria:

Mandatory Compatibility Parameters:

• Mounting Type: Surface Mount
• Package / Case: TO-263-3 / D2PAK (2 Leads + Tab)
• SCR Type: Standard Recovery
• Operating Temperature Range: -40°C to 125°C
• Gate Trigger Voltage (Vgt) Max: ≤ 1.5V
• On-State Voltage (Vtm) Max: ≤ 1.6V
• On-State Current (It RMS) Max: ≥ 25A
• Hold Current (Ih) Max: ≤ 50mA

Allowable Variation Parameters:

• Voltage - Off State: Higher ratings are acceptable for applications requiring increased voltage margin
• Current - Off State: Lower values indicate improved leakage characteristics
• Current - Non Rep. Surge: Variations within standard recovery SCR specifications

Substitute parts S4025NTP, S6025NTP, and TN2540-600G-TR meet all mandatory compatibility parameters while offering enhanced off-state voltage ratings of 400V and 600V respectively.

Parameter Comparison

Engineering Selection Recommendations

S4025NTP (Littelfuse Inc., Active Status): Direct substitute with 400V off-state voltage rating. Maintains all gate trigger and on-state electrical characteristics identical to S2025NTP. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliant. Recommended for applications where 200V margin is insufficient and 400V rating provides adequate design headroom.

S6025NTP (Littelfuse, Active Status): Direct substitute with 600V off-state voltage rating. Maintains all gate trigger and on-state electrical characteristics identical to S2025NTP. Active product status ensures procurement reliability. ROHS3 compliant. Recommended for applications requiring maximum voltage margin or operating in high-voltage environments.

TN2540-600G-TR (STMicroelectronics, Active Status): Cross-manufacturer substitute with 600V off-state voltage rating. Gate trigger voltage (Vgt) of 1.3V is lower than S2025NTP specification maximum of 1.5V, providing improved gate sensitivity. Off-state leakage current of 5µA is superior to S2025NTP specification of 10µA. All other electrical parameters meet or exceed S2025NTP requirements. ROHS3 and REACH compliant. Supplied in Tape & Reel packaging. Recommended for applications where cross-manufacturer qualification is acceptable and enhanced gate sensitivity or reduced leakage is beneficial.

Frequently Asked Questions (FAQ)

Q: Can S4025NTP or S6025NTP be used as direct replacements for S2025NTP?

A: Yes. Both parts maintain identical gate trigger voltage, on-state voltage, on-state current, hold current, and operating temperature specifications. The increased off-state voltage ratings (400V and 600V respectively) are compatible with S2025NTP applications, as higher voltage-rated SCRs function correctly in lower-voltage circuits. Identical TO-263 D2PAK packaging ensures mechanical compatibility without PCB redesign.

Q: What is the difference between S6025NTP and TN2540-600G-TR?

A: Both are 600V rated SCRs in TO-263 D2PAK packaging with identical on-state current and temperature specifications. TN2540-600G-TR offers lower gate trigger voltage (1.3V vs 1.5V) and lower off-state leakage current (5µA vs 10µA). S6025NTP is manufactured by Littelfuse, while TN2540-600G-TR is manufactured by STMicroelectronics. Selection depends on manufacturer qualification requirements and whether improved gate sensitivity or reduced leakage characteristics are required.

Q: Are there packaging differences between these substitute parts?

A: S2025NTP, S4025NTP, and S6025NTP are supplied in standard packaging. TN2540-600G-TR is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. All four parts use identical TO-263-3 D2PAK mechanical packages with 2 leads plus tab configuration, ensuring footprint compatibility.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. S2025NTP, S4025NTP, S6025NTP, and TN2540-600G-TR are all ROHS3 compliant. S6025NTP and TN2540-600G-TR additionally carry REACH Unaffected status.

Q: Why is S2025NTP marked as Obsolete?

A: Obsolete status indicates the part is no longer in active production by the manufacturer. S4025NTP, S6025NTP, and TN2540-600G-TR maintain Active status, ensuring continued availability for new designs and ongoing production support.