SS310L R3G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS310L R3G is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current. This component is classified as Active product status and is RoHS3 compliant with REACH unaffected designation. The SS310L R3G is packaged in DO-219AB (Sub SMA) format for surface mount applications.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design flexibility demands component sourcing from multiple qualified suppliers. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	100	µA @ 100 V
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution logic for the SS310L R3G is based on the following critical parameters that must remain constant or within acceptable ranges:

Electrical Parameters (Must Match or Exceed):

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 3 A minimum
Technology: Schottky diode
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Must Match):

Package / Case: DO-219AB
Mounting Type: Surface Mount

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Parametric Equivalent: SS310L maintains identical electrical specifications and is manufactured by the same supplier (Taiwan Semiconductor Corporation). This part differs only in packaging format (Tape & Reel vs. standard packaging) and product status designation.

Similar Manufacturer Parts: SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, and SS2FH10HM3/H are manufactured by Vishay General Semiconductor - Diodes Division. These parts share the same 100 V reverse voltage rating and DO-219AB package but differ in current rating (1 A or 2 A) and forward voltage characteristics. These are classified as similar parts due to reduced current capacity relative to the main part.

Parameter Comparison

Parameter	SS310L R3G (Main)	SS310L (Parametric Equivalent)	SS1FH10-M3/H	SS1FH10HM3/H	SS2FH10-M3/H	SS2FH10HM3/H
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	1 A	1 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	850 mV @ 3 A	800 mV @ 1 A	800 mV @ 1 A	860 mV @ 2 A	860 mV @ 2 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
Current - Reverse Leakage @ Vr	100 µA @ 100 V	100 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 10 V	5 µA @ 100 V
Capacitance @ Vr, F	—	—	70pF @ 4V, 1MHz	70pF @ 4V, 1MHz	70pF @ 4V, 1MHz	70pF @ 4V, 1MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Product Status	Active	Not For New Designs	Active	Active	Active	Active
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)
Series	—	—	eSMP®	eSMP®	eSMP®	eSMP®
Qualification	—	—	—	AEC-Q101	—	AEC-Q101

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent):

The SS310L manufactured by Taiwan Semiconductor Corporation is the parametric equivalent to SS310L R3G. This part maintains identical electrical specifications (100 V, 3 A, 850 mV forward voltage) and package format (DO-219AB). The primary distinction is packaging configuration (Tape & Reel) and product status designation (Not For New Designs). This part is suitable for existing production runs and field replacements where the original part number is unavailable. RoHS3 compliance and MSL 1 rating are maintained.

For Reduced Current Applications:

The Vishay eSMP® series parts (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are suitable only when circuit design permits reduced current ratings. SS1FH10 variants are rated for 1 A and SS2FH10 variants for 2 A. These parts are not suitable as direct replacements for 3 A applications. All Vishay parts maintain 100 V reverse voltage rating, DO-219AB package compatibility, RoHS3 compliance, and MSL 1 rating. Operating temperature range extends to 175°C (versus 150°C for the main part). SS1FH10HM3/H and SS2FH10HM3/H carry AEC-Q101 automotive qualification.

Compliance Verification:

All listed substitute parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity level remains at MSL 1 (Unlimited) across all alternatives. ECCN and HTSUS classifications are consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can SS310L R3G be replaced with SS1FH10-M3/H in a 3 A circuit?

A: No. SS1FH10-M3/H is rated for maximum 1 A average rectified current, while SS310L R3G is rated for 3 A. Using a lower-rated component in a 3 A application will result in component failure or thermal damage. Current rating must not be exceeded.

Q: What is the difference between SS310L and SS310L R3G?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications (100 V, 3 A, 850 mV forward voltage) and DO-219AB package. The primary difference is packaging format: SS310L is supplied in Tape & Reel (TR) configuration, while SS310L R3G uses standard packaging. SS310L carries a "Not For New Designs" status designation.

Q: Are Vishay eSMP® parts (SS1FH10, SS2FH10 series) direct replacements?

A: Vishay eSMP® parts are not direct replacements due to reduced current ratings. SS1FH10 variants support 1 A maximum and SS2FH10 variants support 2 A maximum, compared to 3 A for SS310L R3G. These parts are suitable only for applications with lower current requirements. All maintain 100 V reverse voltage rating and DO-219AB package compatibility.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All listed substitute parts (SS310L, SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are RoHS3 compliant and REACH unaffected. Moisture sensitivity level is MSL 1 (Unlimited) for all parts.

Q: What is the significance of AEC-Q101 qualification on SS1FH10HM3/H and SS2FH10HM3/H?

A: AEC-Q101 is an automotive qualification standard. SS1FH10HM3/H and SS2FH10HM3/H carry this qualification, indicating suitability for automotive applications. SS310L R3G does not list this qualification. If automotive qualification is required, only the qualified Vishay parts should be selected, subject to current rating compatibility.

Q: Can packaging format (Tape & Reel vs. standard) affect circuit performance?

A: No. Packaging format affects only manufacturing and handling processes, not electrical performance. SS310L in Tape & Reel format maintains identical electrical characteristics to SS310L R3G in standard packaging. Component selection should be based on manufacturing process requirements and inventory management.

Q: What is the operating temperature range difference between SS310L R3G and Vishay alternatives?

A: SS310L R3G operates from -55°C to 150°C junction temperature. Vishay eSMP® parts (SS1FH10 and SS2FH10 series) operate from -55°C to 175°C. The extended upper temperature limit of Vishay parts provides additional thermal margin but does not affect substitution compatibility in applications within the -55°C to 150°C range.

Q: Is forward voltage difference between parts significant for substitution?

A: Forward voltage differences are minor and application-dependent. SS310L R3G specifies 850 mV @ 3 A. Vishay SS1FH10 parts specify 800 mV @ 1 A, and SS2FH10 parts specify 860 mV @ 2 A. These differences reflect different current ratings and do not prevent substitution in applications where current rating permits. Circuit design should account for forward voltage characteristics during thermal and efficiency analysis.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message