SD103CWS-G3-08 Equivalent & Substitute Parts

Part Overview

The SD103CWS-G3-08 is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 20 V DC reverse voltage and 350 mA average rectified current in a surface mount SOD-323 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and packaging specifications align with the original component's operational requirements, enabling seamless integration in production environments where supply constraints or design optimization necessitate alternative sourcing.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	350	mA
Voltage - Forward (Vf) (Max) @ If	600 mV @ 200 mA	mV @ mA
Reverse Recovery Time (trr)	10	ns
Current - Reverse Leakage @ Vr	5 µA @ 10 V	µA @ V
Capacitance @ Vr, F	50	pF @ 0V, 1MHz
Package / Case	SC-76, SOD-323	—
Operating Temperature - Junction	-55 to 125	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SD103CWS-G3-08 are classified into two categories based on electrical parameter alignment:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 20 V reverse voltage, 350 mA average rectified current, 600 mV forward voltage at 200 mA, 10 ns reverse recovery time, 5 µA reverse leakage current at 10 V, and 50 pF capacitance. These parts are functionally interchangeable without circuit redesign. Parametric equivalents include SD103CWS-E3-08 (Vishay) and SD103CWSHE3-TP (Micro Commercial Co).

Higher-Rated Substitutes exceed the original part's current rating while maintaining the 20 V reverse voltage specification. These parts support 500 mA or 1 A average rectified current, enabling use in applications requiring increased current capacity within the same voltage class. Higher-rated substitutes include B0520WS-7-F (Diodes Incorporated), PMEG2005AEA,115 (Nexperia), and PMEG2010EAZ (Nexperia).

All substitute parts share the SOD-323 surface mount package, Fast Recovery speed classification (≤500 ns for Io >200 mA), ROHS3 compliance, and MSL 1 moisture sensitivity rating.

Parameter Comparison

Parameter	SD103CWS-G3-08	SD103CWS-E3-08	SD103CWSHE3-TP	B0520WS-7-F	PMEG2005AEA,115	PMEG2010EAZ
Manufacturer	Vishay	Vishay	Micro Commercial Co	Diodes Inc	Nexperia	Nexperia
Voltage - DC Reverse (Vr) (Max)	20 V	20 V	20 V	20 V	20 V	20 V
Current - Average Rectified (Io)	350 mA	350 mA	350 mA	500 mA	500 mA	1 A
Voltage - Forward (Vf) (Max) @ If	600 mV @ 200 mA	600 mV @ 200 mA	600 mV @ 200 mA	430 mV @ 500 mA	390 mV @ 500 mA	550 mV @ 1 A
Speed	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA
Reverse Recovery Time (trr)	10 ns	10 ns	10 ns	—	—	—
Current - Reverse Leakage @ Vr	5 µA @ 10 V	5 µA @ 10 V	5 µA @ 10 V	250 µA @ 20 V	200 µA @ 20 V	50 µA @ 15 V
Capacitance @ Vr, F	50 pF @ 0V, 1MHz	50 pF @ 0V, 1MHz	50 pF @ 0V, 1MHz	58 pF @ 0V, 1MHz	80 pF @ 1V, 1MHz	19 pF @ 5V, 1MHz
Package / Case	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323
Operating Temperature - Junction	-55 to 125°C	-55 to 125°C	-55 to 125°C	-55 to 125°C	150°C (Max)	125°C (Max)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Parametric Equivalent Selection (SD103CWS-E3-08, SD103CWSHE3-TP)

SD103CWS-E3-08 and SD103CWSHE3-TP are direct parametric equivalents to the SD103CWS-G3-08, matching all electrical specifications and operating temperature range. Both parts maintain ROHS3 compliance and MSL 1 rating. SD103CWSHE3-TP carries automotive qualification (AEC-Q101) and is suitable for applications requiring automotive-grade components. Selection between these parametric equivalents depends on supply availability, packaging format preference (Tape & Reel), and automotive qualification requirements.

Higher-Rated Substitute Selection (B0520WS-7-F, PMEG2005AEA,115, PMEG2010EAZ)

Higher-rated substitutes are applicable when circuit design permits increased current capacity. B0520WS-7-F (500 mA) and PMEG2005AEA,115 (500 mA) provide intermediate current ratings with improved forward voltage characteristics. PMEG2010EAZ (1 A) offers maximum current capacity with automotive qualification (AEC-Q100) and lowest capacitance specification. All three higher-rated parts maintain 20 V reverse voltage compatibility and ROHS3 compliance. Forward voltage and reverse leakage characteristics differ from the original part; circuit validation is required when substituting with higher-rated devices.

Compliance and Certification Basis

All substitute parts are Active product status with ROHS3 compliance and REACH Unaffected designation. Automotive applications requiring AEC qualification should specify SD103CWSHE3-TP (AEC-Q101) or PMEG2010EAZ (AEC-Q100). Standard industrial applications accept any listed substitute meeting voltage and current requirements.

Frequently Asked Questions (FAQ)

Q: Can SD103CWS-E3-08 replace SD103CWS-G3-08 without circuit modification?

A: Yes. SD103CWS-E3-08 is a parametric equivalent with identical electrical specifications, operating temperature range, and package configuration. Direct substitution is supported without circuit redesign.

Q: What is the difference between parametric equivalents and higher-rated substitutes?

A: Parametric equivalents (SD103CWS-E3-08, SD103CWSHE3-TP) maintain the original 350 mA current rating and all electrical characteristics. Higher-rated substitutes (B0520WS-7-F, PMEG2005AEA,115, PMEG2010EAZ) support 500 mA or 1 A current ratings while maintaining 20 V reverse voltage. Higher-rated parts exhibit different forward voltage and reverse leakage characteristics and require circuit validation before use.

Q: Are all substitute parts compatible with the SOD-323 footprint?

A: Yes. All substitute parts use the SC-76, SOD-323 surface mount package and are mechanically compatible with the original component footprint.

Q: Which substitute part is suitable for automotive applications?

A: SD103CWSHE3-TP carries AEC-Q101 automotive qualification. PMEG2010EAZ carries AEC-Q100 automotive qualification. Both are suitable for automotive-grade applications. Standard industrial applications accept any listed substitute.

Q: What is the maximum junction temperature for each substitute?

A: SD103CWS-G3-08, SD103CWS-E3-08, SD103CWSHE3-TP, and B0520WS-7-F support -55°C to 125°C junction temperature range. PMEG2005AEA,115 supports maximum 150°C junction temperature. PMEG2010EAZ supports maximum 125°C junction temperature. Verify application thermal requirements before selection.

Q: Can higher-rated substitutes be used in place of the original 350 mA part?

A: Higher-rated substitutes (500 mA or 1 A) are electrically compatible with 20 V reverse voltage circuits. However, forward voltage and reverse leakage characteristics differ from the original part. Circuit validation is required to confirm performance in the specific application before production use.

Q: What is the moisture sensitivity level for all substitute parts?

A: All substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH Unaffected, meeting environmental regulatory requirements.

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