SS13 R3G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS13 R3G is a 30V, 1A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in DO-214AC (SMA) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. The part operates across a junction temperature range of -55°C to 125°C and is RoHS3 compliant with MSL 1 rating.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 30 V
Package / Case	DO-214AC, SMA
Operating Temperature - Junction	-55°C ~ 125°C
Technology	Schottky
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SS13 R3G is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 1 A (±20 mV tolerance acceptable)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 200 µA @ 30 V (±300 µA variance acceptable)
Package / Case: DO-214AC, SMA
Operating Temperature - Junction: -55°C ~ 125°C minimum

Parametric Equivalent Parts maintain identical electrical specifications and package configuration. These parts are direct functional replacements with no design modifications required.

Similar Parts share the same voltage and current ratings but may differ in forward voltage characteristics, reverse leakage current, package variants, or temperature range. These require circuit validation before substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Package	Tj Range	Product Status
SS13 R3G	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	200 µA @ 30 V	DO-214AC (SMA)	-55°C ~ 125°C	Discontinued
SS13	Fairchild Semiconductor	30 V	1 A	500 mV @ 1 A	200 µA @ 30 V	DO-214AC (SMA)	-65°C ~ 125°C	Active
SS13H	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	200 µA @ 30 V	DO-214AC (SMA)	-55°C ~ 125°C	Active
B130-13-F	Diodes Incorporated	30 V	1 A	500 mV @ 1 A	500 µA @ 30 V	DO-214AC (SMA)	-65°C ~ 150°C	Active
B130-E3/5AT	Vishay General Semiconductor - Diodes Division	30 V	1 A	520 mV @ 1 A	200 µA @ 30 V	DO-214AC (SMA)	-65°C ~ 125°C	Active
B130-E3/61T	Vishay General Semiconductor - Diodes Division	30 V	1 A	520 mV @ 1 A	200 µA @ 30 V	DO-214AC (SMA)	-65°C ~ 125°C	Active
B130B-13-F	Diodes Incorporated	30 V	1 A	500 mV @ 1 A	500 µA @ 30 V	DO-214AA (SMB)	-65°C ~ 150°C	Active
B130L-13-F	Diodes Incorporated	30 V	1 A	410 mV @ 1 A	1 mA @ 30 V	DO-214AC (SMA)	-55°C ~ 125°C	Active
B130LAW-7-F	Diodes Incorporated	30 V	1 A	420 mV @ 1 A	1 mA @ 30 V	SOD-123	-55°C ~ 125°C	Active
B130LB-13-F	Diodes Incorporated	30 V	2 A	445 mV @ 2 A	1 mA @ 30 V	DO-214AA (SMB)	-55°C ~ 125°C	Active
B130Q-13-F	Diodes Incorporated	30 V	1 A	500 mV @ 1 A	500 µA @ 30 V	DO-214AC (SMA)	-65°C ~ 150°C	Active

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

The SS13 (Fairchild Semiconductor) and SS13H (Taiwan Semiconductor Corporation) are parametric equivalents to the SS13 R3G. Both maintain identical electrical specifications across voltage, current, and forward voltage parameters. The SS13H carries AEC-Q101 automotive qualification and is available in active production status. The Fairchild SS13 extends the lower operating temperature to -65°C, providing additional thermal margin for applications requiring extended temperature performance.

Similar Parts with Active Status:

The B130-13-F, B130-E3/5AT, B130-E3/61T, and B130Q-13-F are active production alternatives meeting the 30V, 1A core requirements. The B130-E3/5AT and B130-E3/61T exhibit slightly elevated forward voltage (520 mV vs. 500 mV) but maintain reverse leakage at 200 µA. The B130-13-F and B130Q-13-F show higher reverse leakage (500 µA) but offer extended temperature range to -65°C and 150°C respectively. The B130Q-13-F includes AEC-Q101 automotive qualification.

Package Variant Considerations:

The B130B-13-F provides SMB package (DO-214AA) in place of SMA (DO-214AC), requiring PCB layout modification. The B130LAW-7-F uses SOD-123 package, suitable only for applications where package footprint change is acceptable. The B130LB-13-F is rated for 2A current, exceeding the 1A requirement and available in SMB package.

Compliance and Certification:

All recommended substitutes maintain RoHS3 compliance and MSL 1 rating. The SS13H and B130Q-13-F carry AEC-Q101 automotive qualification for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can the SS13 (Fairchild) directly replace the SS13 R3G?

A: Yes. The Fairchild SS13 is a parametric equivalent with identical voltage (30V), current (1A), forward voltage (500 mV @ 1A), and reverse leakage (200 µA @ 30V) specifications. The extended lower temperature rating (-65°C vs. -55°C) provides additional thermal margin. Both use DO-214AC (SMA) package.

Q: What is the difference between SS13H and SS13 R3G?

A: The SS13H is an active production variant from Taiwan Semiconductor Corporation with identical electrical parameters. It includes AEC-Q101 automotive qualification and is available in Tape & Reel packaging. The SS13 R3G is discontinued. Both operate across -55°C to 125°C.

Q: Can B130-E3/5AT replace SS13 R3G in all applications?

A: The B130-E3/5AT meets the 30V, 1A core requirements with matching reverse leakage (200 µA @ 30V). Forward voltage is 520 mV versus 500 mV, a 20 mV difference. This variance is acceptable in most rectification applications but should be verified in circuits with tight voltage regulation requirements.

Q: Why do some alternatives show higher reverse leakage current?

A: The B130-13-F and B130Q-13-F exhibit 500 µA reverse leakage compared to the 200 µA specification of SS13 R3G. This 300 µA difference is within acceptable variance for Schottky diodes and does not affect rectification performance in standard applications. Verification is required only in low-leakage or precision analog circuits.

Q: Is the B130LAW-7-F a suitable substitute?

A: The B130LAW-7-F meets electrical requirements (30V, 1A) but uses SOD-123 package instead of DO-214AC (SMA). This package change requires PCB redesign and is suitable only when footprint modification is acceptable. Forward voltage is 420 mV, providing improved efficiency.

Q: What is the significance of the B130LB-13-F 2A rating?

A: The B130LB-13-F is rated for 2A average rectified current, exceeding the 1A requirement of SS13 R3G. This higher current rating provides design margin but uses SMB package (DO-214AA) instead of SMA, requiring PCB layout modification. It is suitable for applications where increased current capacity is beneficial.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance of SS13 R3G.

Q: Which substitute offers automotive qualification?

A: The SS13H and B130Q-13-F both carry AEC-Q101 automotive qualification. The SS13H is from Taiwan Semiconductor Corporation and the B130Q-13-F is from Diodes Incorporated. Both are suitable for automotive applications requiring qualified components.

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