SCS205KGC Equivalent & Substitute Parts Reference (Diodes, Rectifiers)

Part Overview

The Rohm Semiconductor SCS205KGC is a Silicon Carbide (SiC) Schottky diode rated for 1200 V, 5 A, in a TO-220AC through-hole package. As a high-voltage, fast-switching rectifier, it is utilized in power electronic applications requiring high efficiency and thermal performance. This model is currently classified as Obsolete, making it necessary to identify equivalent or substitute diode rectifiers with matching electrical and mechanical characteristics for design continuity or component replacement.

Key Parameters

Parameter	Value
Technology	SiC (Silicon Carbide) Schottky
Voltage - DC Reverse (Vr) (Max)	1200 V
Current - Average Rectified (Io)	5 A
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 5 A
Reverse Recovery Time (trr)	0 ns
Current - Reverse Leakage @ Vr	100 µA @ 1200 V
Capacitance @ Vr, F	270 pF @ 1V, 1MHz
Mounting Type	Through Hole
Package / Case	TO-220-2
Supplier Device Package	TO-220AC
Operating Temperature - Junction	175°C (Max)
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution logic for SCS205KGC in the diodes, rectifiers category is strictly based on electrical and mechanical matching:

Technology: SiC Schottky
Maximum reverse voltage: 1200 V
Average forward current: Equal to or greater than 5 A
Package type: Through Hole, TO-220-2 variant
Comparable forward voltage rating at stated current
Comparable reverse recovery time
Matching or improved compliance status (RoHS3, REACH)
Thermal and mounting compatibility

All candidate substitutes presented below share these key parameters.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Capacitance	Mounting Type	Package / Case	Supplier Device Package	Operating Temp (Junction)	RoHS Status	MSL	REACH Status
SCS205KGC	Rohm Semiconductor	1200 V	5 A	1.6 V @ 5 A	0 ns	100 µA @ 1200 V	270 pF @ 1V, 1MHz	Through Hole	TO-220-2	TO-220AC	175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
SCS205KGC17	Rohm Semiconductor	1200 V	5 A	1.6 V @ 5 A	0 ns	100 µA @ 1200 V	270 pF @ 1V, 1MHz	Through Hole	TO-220-2	TO-220ACFP	175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
FFSP05120A	onsemi	1200 V	-	1.75 V @ 5 A	0 ns	200 µA @ 1200 V	-	Through Hole	TO-220-2	TO-220-2L	-	ROHS3 Compliant	Not Applicable	REACH Unaffected
FFSP10120A	onsemi	1200 V	10 A	1.75 V @ 10 A	-	200 µA @ 1200 V	612 pF @ 1V, 100kHz	Through Hole	TO-220-2	TO-220-2L	-55°C ~ 175°C	ROHS3 Compliant	Not Applicable	REACH Unaffected
C4D02120A	Wolfspeed, Inc.	1200 V	10 A	1.8 V @ 2 A	0 ns	50 µA @ 1200 V	167 pF @ 0V, 1MHz	Through Hole	TO-220-2	TO-220-2	-55°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
C4D05120A	Wolfspeed, Inc.	1200 V	19 A	1.8 V @ 5 A	0 ns	150 µA @ 1200 V	390 pF @ 0V, 1MHz	Through Hole	TO-220-2	TO-220-2	-55°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
C4D10120A	Wolfspeed, Inc.	1200 V	33 A	1.8 V @ 10 A	0 ns	250 µA @ 1200 V	754 pF @ 0V, 1MHz	Through Hole	TO-220-2	TO-220-2	-55°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
C4D20120A	Wolfspeed, Inc.	1200 V	54.5 A	1.8 V @ 20 A	0 ns	200 µA @ 1200 V	1500 pF @ 0V, 1MHz	Through Hole	TO-220-2	TO-220-2	-55°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected

Engineering Selection Recommendations

When selecting substitute parts for SCS205KGC, priority should be given to:

RoHS3 compliance and REACH unaffected status for environmental and regulatory conformity
Equivalent or improved reverse voltage, average rectified current, and mounting characteristics
Package compatibility with TO-220-2 (including variants such as TO-220AC, TO-220-2L, TO-220ACFP)
Substitute parts with higher current ratings may be considered if all other parameters match

Frequently Asked Questions (FAQ)

Q1: What key parameters determine compatibility when substituting a SiC Schottky diode like SCS205KGC?
A1: Electrical compatibility (Maximum reverse voltage, average rectified current, forward voltage drop, reverse recovery time, and leakage current), package type (TO-220-2 or variant), mounting method, and compliance standards (RoHS, REACH).

Q2: Does package variant (TO-220AC, TO-220-2, TO-220ACFP, TO-220-2L) affect substitution?
A2: Only package variants provided in the parameters above are considered equivalent for through-hole mounting when all mechanical dimensions are compatible.

Q3: Can substitute diodes with higher current ratings (Io) be used in place of SCS205KGC?
A3: Substitute diodes with equal or higher average rectified current are permissible, provided all other parameters match and package compatibility is maintained.

Q4: Is forward voltage (Vf) critical in substitution?
A4: Forward voltage values must be compared strictly at the specified current. Only substitute parts with comparable Vf ratings at supported current are listed.

Q5: Are compliance standards (RoHS3, REACH) required for substitutes?
A5: Substitute parts listed are RoHS3 compliant and REACH unaffected to ensure regulatory alignment with the original SCS205KGC.

Q6: Can rectifiers from other manufacturers be directly substituted based on part numbers?
A6: Substitute selection is based strictly on the provided technical and regulatory parameters. Manufacturer differences are accounted for only if parameters match as required.

Q7: Is thermal performance (operating temperature) considered in substitution?
A7: Only models with matching or greater maximum junction temperature ratings (175°C) are included as functional substitutes.

Q8: How do mounting type and supplier device package affect direct replacement?
A8: Substitutes are limited to through-hole mounting and TO-220-2 package types to ensure mechanical compatibility in circuit redesign or replacement.

Q9: Are obsolete and active part status considered in this reference?
A9: Obsolete status for SCS205KGC mandates consideration of only active or last time buy substitutes for continuity.

Q10: Are moisture sensitivity and environmental compliance necessary for this component category?
A10: Moisture Sensitivity Level (MSL) is included as provided; only substitutes with similar ratings are listed. Environmental compliance via RoHS3 and REACH is required and verified per data provided.

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