LSIC2SD065C08A Equivalent & Substitute Parts

Part Overview

The LSIC2SD065C08A is a Silicon Carbide (SiC) Schottky diode manufactured by Littelfuse Inc., rated for 650 V DC reverse voltage and 23 A average rectified current in a TO-252 (DPAK) surface mount package. This component is classified as Obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The part operates across a junction temperature range of -55°C to 175°C and exhibits zero reverse recovery time, characteristic of SiC Schottky technology. Substitution is required to maintain supply chain access while preserving electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	650	V
Current - Average Rectified (Io)	23	A
Voltage - Forward (Vf) (Max) @ If	1.8 V @ 8 A	V @ A
Reverse Recovery Time (trr)	0	ns
Current - Reverse Leakage @ Vr	50	µA @ 650 V
Capacitance @ Vr, F	415	pF @ 1V, 1MHz
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 175	°C
Technology	SiC (Silicon Carbide) Schottky	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the LSIC2SD065C08A is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal 650 V
Package / Case: Must be TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Must be Surface Mount
Technology: Must be SiC (Silicon Carbide) Schottky
Operating Temperature - Junction: Must support -55°C to 175°C range

Secondary Compatibility Parameters:

Current - Average Rectified (Io): Substitute must meet or exceed 23 A
Voltage - Forward (Vf) (Max) @ If: Must not exceed 1.8 V at rated current
Reverse Recovery Time (trr): Must be 0 ns (no recovery time)
Current - Reverse Leakage @ Vr: Must not exceed 50 µA @ 650 V
RoHS Status: Must maintain ROHS3 Compliance

Substitute parts are grouped by current rating capability. Parts with current ratings at or above 23 A provide direct functional equivalence. Parts with lower current ratings (8 A, 11 A, 13.5 A, 20 A) are listed as alternatives for applications where reduced current capacity is acceptable. All substitute parts maintain identical voltage ratings, package geometry, and thermal operating range.

Parameter Comparison

Parameter	LSIC2SD065C08A (Main)	C3D08065E	C3D10065E	STPSC10H065B-TR
Manufacturer	Littelfuse Inc.	Wolfspeed, Inc.	Wolfspeed, Inc.	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	650 V	650 V	650 V	650 V
Current - Average Rectified (Io)	23 A	25.5 A	32 A	10 A
Voltage - Forward (Vf) (Max) @ If	1.8 V @ 8 A	1.8 V @ 8 A	1.8 V @ 10 A	1.75 V @ 10 A
Reverse Recovery Time (trr)	0 ns	0 ns	0 ns	0 ns
Current - Reverse Leakage @ Vr	50 µA @ 650 V	50 µA @ 650 V	50 µA @ 650 V	100 µA @ 650 V
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Operating Temperature - Junction	-55 to 175°C	-55 to 175°C	-55 to 175°C	-40 to 175°C
Technology	SiC Schottky	SiC Schottky	SiC Schottky	SiC Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Primary Substitute - C3D08065E (Wolfspeed, Inc.): The C3D08065E is the closest functional equivalent, offering 25.5 A current capacity, exceeding the 23 A requirement of the LSIC2SD065C08A. This part maintains identical voltage rating (650 V), forward voltage characteristics (1.8 V @ 8 A), zero reverse recovery time, and thermal operating range (-55°C to 175°C). Product status is Active, ensuring long-term availability. RoHS3 compliance and REACH Affected status align with regulatory requirements. Packaging is TO-252-3 DPAK in Tube format.

Secondary Substitute - C3D10065E (Wolfspeed, Inc.): The C3D10065E provides 32 A current capacity with identical electrical specifications to the main part. This option offers higher current margin for applications requiring additional headroom. Product status is Active with RoHS3 compliance. Operating temperature range matches the original specification. Packaging is TO-252-3 DPAK in Tube format.

Alternative Substitute - STPSC10H065B-TR (STMicroelectronics): The STPSC10H065B-TR is rated for 10 A average rectified current, suitable for applications where the 23 A requirement can be reduced. This part maintains 650 V voltage rating, zero reverse recovery time, and TO-252-3 DPAK package. Forward voltage is 1.75 V @ 10 A, slightly lower than the original specification. Operating temperature range is -40°C to 175°C, with the lower limit 15°C higher than the original. Product status is Active with RoHS3 compliance. Packaging is Tape & Reel (TR) format.

Compliance Considerations: All recommended substitutes maintain ROHS3 compliance. The LSIC2SD065C08A is classified as Obsolete; all substitute options carry Active product status, ensuring procurement viability and manufacturer support. Selection should prioritize parts with matching or superior current ratings to maintain design margin.

Frequently Asked Questions (FAQ)

Q1: Can C3D08065E directly replace LSIC2SD065C08A in all applications?

A: Yes, for applications requiring 23 A or less. The C3D08065E is rated for 25.5 A, exceeding the original 23 A specification. Electrical parameters (voltage, forward drop, recovery time, leakage current) are identical or superior. Package geometry and thermal range match exactly. Verify PCB layout compatibility with TO-252-3 DPAK footprint.

Q2: What is the significance of zero reverse recovery time (trr = 0 ns)?

A: Zero reverse recovery time is a characteristic of SiC Schottky diodes, indicating instantaneous switching without tail current. This parameter is critical for high-frequency switching applications and power factor correction circuits. All substitute parts maintain this specification, ensuring equivalent switching performance.

Q3: Why does STPSC10H065B-TR have a higher reverse leakage current (100 µA vs. 50 µA)?

A: Reverse leakage current variation is within normal manufacturing tolerance for SiC Schottky diodes across different manufacturers. The STPSC10H065B-TR specification of 100 µA @ 650 V remains acceptable for most applications. Verify leakage current requirements in thermal budget calculations if this parameter is critical to your design.

Q4: Is the lower operating temperature minimum (-40°C vs. -55°C) of STPSC10H065B-TR a limitation?

A: The STPSC10H065B-TR minimum junction temperature of -40°C may be restrictive for applications requiring -55°C operation. If your design requires the full -55°C to 175°C range, select C3D08065E or C3D10065E, both rated to -55°C minimum.

Q5: What packaging format differences exist between substitute options?

A: C3D08065E and C3D10065E are supplied in Tube packaging. STPSC10H065B-TR is supplied in Tape & Reel (TR) format. Both formats are compatible with standard surface mount assembly processes. Tube format is typical for lower-volume procurement; Tape & Reel is standard for high-volume production. Verify your assembly process requirements and supplier availability.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. LSIC2SD065C08A, C3D08065E, C3D10065E, and STPSC10H065B-TR are all ROHS3 compliant, meeting EU Directive 2011/65/EU requirements. This ensures compatibility with RoHS-regulated supply chains and end-market applications.

Q7: Can lower-current alternatives (C3D02065E, C3D03065E, C3D04065E, C3D06065E) substitute for LSIC2SD065C08A?

A: These parts are not recommended as direct substitutes due to insufficient current ratings (8 A, 11 A, 13.5 A, 20 A respectively). Use only if your application current requirement is below 23 A. All maintain identical voltage rating (650 V), package (TO-252-3 DPAK), and thermal range (-55°C to 175°C), but current derating must be verified against circuit design specifications.

Q8: What is the impact of capacitance differences between parts?

A: Capacitance variation (415 pF for LSIC2SD065C08A vs. 395-460.5 pF for substitutes) affects high-frequency switching characteristics and EMI performance. For most applications, this variation is negligible. In sensitive RF or high-frequency switching circuits, verify capacitance impact on circuit resonance and switching losses through simulation or testing.

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