CS19-08HO1S-TRL Equivalent & Substitute Parts

Part Overview

The CS19-08HO1S-TRL is an 800V 29A standard recovery SCR manufactured by IXYS in Surface Mount TO-263 (D2PAK) packaging. This thyristor is designed for high-voltage switching applications requiring reliable gate triggering and thermal management in compact form factors. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching voltage ratings, package compatibility, and thermal operating ranges to ensure direct circuit board compatibility.

Key Parameters

Parameter	CS19-08HO1S-TRL
Voltage - Off State	800 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	28 mA
Voltage - On State (Vtm) (Max)	1.6 V
Current - On State (It (RMS)) (Max)	29 A
Current - Hold (Ih) (Max)	50 mA
Operating Temperature	-40°C ~ 125°C
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CS19-08HO1S-TRL is determined by the following critical parameters:

Voltage - Off State: 800 V (exact match required)
Package / Case: TO-263-3, D2PAK (mechanical and thermal compatibility)
SCR Type: Standard Recovery (functional equivalence)
Operating Temperature Range: -40°C ~ 125°C (thermal envelope)
RoHS3 Compliance: Required for regulatory alignment

Substitute parts must maintain identical off-state voltage and package configuration. Current ratings (It (RMS)) may vary within the application's design margin. Gate trigger parameters (Vgt, Igt) and on-state voltage (Vtm) are evaluated for circuit compatibility but do not disqualify substitution when within acceptable tolerance bands for the target application.

Parameter Comparison

Parameter	CS19-08HO1S-TRL (IXYS)	S8025NRP (Littelfuse)	S8055NRP (Littelfuse)	TN2540-800G-TR (STMicroelectronics)
Voltage - Off State	800 V	800 V	800 V	800 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.5 V	1.5 V	1.3 V
Current - Gate Trigger (Igt) (Max)	28 mA	35 mA	40 mA	40 mA
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V	1.8 V	1.6 V
Current - On State (It (RMS)) (Max)	29 A	25 A	55 A	25 A
Current - Hold (Ih) (Max)	50 mA	50 mA	60 mA	50 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and full RoHS3 compliance, meeting regulatory requirements equivalent to the CS19-08HO1S-TRL. Selection between substitutes depends on current rating requirements within the application circuit:

S8025NRP and TN2540-800G-TR are suitable for applications requiring 25A RMS current capacity. Both parts share identical off-state voltage, on-state voltage, and hold current specifications with the main part. TN2540-800G-TR offers a lower gate trigger voltage (1.3V vs. 1.5V), which may reduce gate drive circuit complexity.

S8055NRP accommodates higher current applications requiring 55A RMS capacity. This part exhibits a higher on-state voltage (1.8V vs. 1.6V) and increased hold current (60mA vs. 50mA), reflecting its higher current rating. Selection of S8055NRP is appropriate only when the application circuit design supports these parameter variations.

All parts are manufactured to identical thermal specifications (-40°C ~ 125°C) and package standards (TO-263-3, D2PAK), ensuring mechanical and thermal compatibility on the PCB.

Frequently Asked Questions (FAQ)

Q: Can S8025NRP or TN2540-800G-TR directly replace CS19-08HO1S-TRL in existing designs?

A: Yes, both parts are direct substitutes for applications designed for 25A RMS operation. Both maintain 800V off-state voltage, TO-263 D2PAK packaging, and identical thermal operating range. Gate trigger parameters are within acceptable tolerance for standard gate drive circuits.

Q: When is S8055NRP appropriate as a substitute?

A: S8055NRP is suitable only when the application requires 55A RMS current capacity. The higher on-state voltage (1.8V) and increased hold current (60mA) must be evaluated against circuit design margins. This part is not a direct replacement for 29A-rated designs but serves higher-current applications within the same voltage class and package family.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts use identical TO-263-3 D2PAK packaging with 2 leads plus tab configuration. PCB footprints, thermal pad dimensions, and lead spacing are standardized across all listed parts, enabling direct board-level substitution without layout modifications.

Q: What is the significance of gate trigger voltage differences between parts?

A: Gate trigger voltage (Vgt) variations (1.3V to 1.5V) reflect manufacturer design differences but remain within standard gate drive circuit tolerances. TN2540-800G-TR's lower Vgt (1.3V) may reduce gate drive power requirements. These differences do not prevent substitution in standard applications but should be verified against specific gate drive circuit specifications.

Q: Do all parts meet the same compliance standards?

A: Yes. All listed parts are RoHS3 compliant, REACH unaffected, and classified under identical ECCN (EAR99) and HTSUS (8541.30.0080) codes. Moisture sensitivity level is unlimited (MSL 1) for all parts, ensuring equivalent handling and storage requirements.

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