CS19-08HO1S-TUB Equivalent & Substitute Parts

Part Overview

The CS19-08HO1S-TUB is an 800V 31A Standard Recovery SCR manufactured by IXYS in TO-263 (D2PAK) surface mount packaging. This thyristor is designed for high-voltage switching applications requiring reliable gate triggering and thermal management in compact form factors. The part is currently active in production with full RoHS3 and REACH compliance. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits current rating adjustments within application parameters.

Substiute Parts

CS19-08HO1S-TUB

IXYSIn Stock: 996CS19-08HO1S-TUB Datasheet

Current PartRFQ

S8025NRP

Littelfuse Inc.In Stock: 1258S8025NRP Datasheet

SimilarRFQ

S8055NRP

Littelfuse Inc.In Stock: 2251S8055NRP Datasheet

SimilarRFQ

TN2540-800G-TR

STMicroelectronicsIn Stock: 3305TN2540-800G-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS19-08HO1S-TUB is determined by the following mandatory criteria:

• Voltage Rating: Off-state voltage must be 800V minimum
• Package Type: TO-263-3 / D2PAK surface mount only
• SCR Type: Standard Recovery operation
• Gate Trigger Voltage (Vgt): Maximum 1.5V
• Operating Temperature Range: -40°C to 125°C minimum
• Compliance: RoHS3 and REACH status alignment
• Current Rating Flexibility: On-state RMS current may vary based on thermal design and application margin requirements

Three substitute parts meet these criteria with documented electrical and mechanical compatibility:

1. S8025NRP (Littelfuse Inc.) — 25A RMS rating, lower current capacity
2. S8055NRP (Littelfuse Inc.) — 55A RMS rating, higher current capacity
3. TN2540-800G-TR (STMicroelectronics) — 25A RMS rating, alternative manufacturer

Parameter Comparison

Engineering Selection Recommendations

S8025NRP (Littelfuse Inc.) — Suitable for applications where the 31A RMS rating of the main part exceeds thermal or current requirements. This 25A-rated substitute maintains identical 800V blocking voltage, gate trigger specifications within tolerance, and standard recovery characteristics. Lower on-state voltage (1.6V vs. 1.32V) results in increased power dissipation per ampere. All compliance certifications align with the main part. Inventory availability is higher than the main part.

S8055NRP (Littelfuse Inc.) — Applicable for designs requiring current capacity beyond the 31A RMS specification of the main part. This 55A-rated substitute provides identical 800V blocking voltage and gate trigger voltage (1.5V max). Higher on-state voltage (1.8V) and increased hold current (60mA) must be evaluated against thermal design margins. Surge current capability is substantially higher (550A/650A vs. 180A/195A). All compliance certifications are maintained. Highest inventory availability among all options.

TN2540-800G-TR (STMicroelectronics) — Functionally equivalent to S8025NRP at 25A RMS rating with superior gate trigger voltage specification (1.3V max vs. 1.5V). Off-state leakage current is significantly lower (5µA vs. 50µA in main part), reducing standby power consumption. On-state voltage matches S8025NRP at 1.6V. All compliance certifications are met. Highest inventory availability and available in Digi-Reel® packaging format.

Selection between S8025NRP and TN2540-800G-TR for 25A applications depends on gate drive circuit design and standby power budget. Selection of S8055NRP requires thermal analysis to confirm adequate heat dissipation at 55A RMS operation.

Frequently Asked Questions (FAQ)

Q: Can S8025NRP or TN2540-800G-TR be used as direct replacements for CS19-08HO1S-TUB in all applications?

A: Both parts are mechanically and electrically compatible in TO-263 D2PAK footprint. However, the 25A RMS rating is lower than the main part's 31A specification. Direct substitution is valid only if the application current requirement does not exceed 25A RMS. Thermal design and circuit margin analysis must confirm adequate performance.

Q: What is the advantage of S8055NRP over the main part?

A: S8055NRP provides 55A RMS current capacity, suitable for applications requiring higher current handling than the 31A main part specification. Identical 800V blocking voltage and gate trigger characteristics ensure pin-compatible operation. Thermal management design must accommodate the higher on-state voltage (1.8V) and resulting power dissipation.

Q: How do gate trigger specifications differ among these parts?

A: All parts maintain 1.5V maximum gate trigger voltage except TN2540-800G-TR, which specifies 1.3V maximum. Gate trigger current (Igt) varies: CS19-08HO1S-TUB at 28mA, S8025NRP at 35mA, S8055NRP at 40mA, and TN2540-800G-TR at 40mA. Gate drive circuit design must accommodate the highest Igt specification if multiple parts are used interchangeably.

Q: Are there packaging format differences that affect procurement?

A: The main part is supplied in Tube packaging. All substitutes are supplied in Cut Tape (CT) format. TN2540-800G-TR is additionally available in Digi-Reel® format. Packaging format does not affect electrical performance but may influence assembly line compatibility and inventory management.

Q: What is the significance of the lower off-state leakage current in TN2540-800G-TR?

A: TN2540-800G-TR specifies 5µA maximum off-state leakage compared to 50µA in the main part and 20µA in Littelfuse substitutes. Lower leakage reduces standby power consumption in applications with extended idle periods or low-duty-cycle operation. This specification difference does not affect switching performance or thermal characteristics during active conduction.

Q: Can these parts be mixed in the same design revision?

A: Mechanical compatibility (TO-263 D2PAK footprint) permits PCB-level interchangeability. However, gate drive circuit design must accommodate the maximum Igt specification (40mA) across all selected parts. Thermal design must be validated for the highest on-state voltage (1.8V for S8055NRP) if multiple current ratings are used in different circuit branches.