SSL13 R3G Schottky Diode 30V 1A DO-214AC Equivalent & Substitute Parts

Part Overview

The SSL13 R3G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V reverse voltage and 1A average rectified current in a DO-214AC (SMA) surface mount package. This component is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and production needs. The part operates across a junction temperature range of -55°C to 125°C and complies with RoHS3 and REACH standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	30	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	390	mV @ 1 A
Current - Reverse Leakage @ Vr	200	µA @ 30 V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 125	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SSL13 R3G is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Voltage - DC Reverse (Vr) Maximum: 30V
Current - Average Rectified (Io): 1A
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: DO-214AC (SMA) or compatible surface mount packages
Operating Temperature Range: Minimum -55°C to 125°C junction temperature capability
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variations:

Forward voltage (Vf) may vary within manufacturer specifications
Reverse leakage current (Ir) may vary within acceptable limits
Packaging format may differ (Cut Tape, Tape & Reel, Digi-Reel) without affecting electrical function
Automotive-grade variants (AEC-Q101) are acceptable for general applications
Reverse leakage current up to 1 mA @ 30V is acceptable for most applications

Parts are grouped into three categories: Parametric Equivalents (identical electrical specifications from the same manufacturer), Direct Equivalents (alternative manufacturers with matching core specifications), and Similar Parts (compatible alternatives with minor parameter variations within acceptable engineering tolerances).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) mV @ If	Ir @ Vr µA	Package	Product Status
SSL13 R3G	Taiwan Semiconductor Corporation	30	1	390 @ 1A	200 @ 30V	DO-214AC (SMA)	Discontinued
SSL13	Taiwan Semiconductor Corporation	30	1	390 @ 1A	200 @ 30V	DO-214AC (SMA)	Active
SSL13H	Taiwan Semiconductor Corporation	30	1	390 @ 1A	200 @ 30V	DO-214AC (SMA)	Active
STPS1L30A	STMicroelectronics	30	1	395 @ 1A	200 @ 30V	DO-214AC (SMA)	Active
B130-13-F	Diodes Incorporated	30	1	500 @ 1A	500 @ 30V	DO-214AC (SMA)	Active
B130-E3/5AT	Vishay General Semiconductor - Diodes Division	30	1	520 @ 1A	200 @ 30V	DO-214AC (SMA)	Active
B130-E3/61T	Vishay General Semiconductor - Diodes Division	30	1	520 @ 1A	200 @ 30V	DO-214AC (SMA)	Active
B130L-13-F	Diodes Incorporated	30	1	410 @ 1A	1000 @ 30V	DO-214AC (SMA)	Active
B130LAW-7-F	Diodes Incorporated	30	1	420 @ 1A	1000 @ 30V	SOD-123	Active
B130B-13-F	Diodes Incorporated	30	1	500 @ 1A	500 @ 30V	DO-214AA (SMB)	Active
B130LB-13-F	Diodes Incorporated	30	2	445 @ 2A	1000 @ 30V	DO-214AA (SMB)	Active

Engineering Selection Recommendations

Parametric Equivalents (Recommended Primary Substitutes):

SSL13 and SSL13H from Taiwan Semiconductor Corporation are direct parametric equivalents with identical electrical specifications to the SSL13 R3G. Both are currently in active production status. SSL13H carries AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability. These parts maintain the original 390 mV forward voltage specification and 200 µA reverse leakage current, ensuring drop-in compatibility.

Direct Equivalent (Alternative Primary Substitute):

STPS1L30A from STMicroelectronics provides equivalent performance with 395 mV forward voltage (5 mV variance from original specification) and identical reverse voltage and current ratings. This part is in active production with high inventory availability (17,164 units). The maximum junction temperature rating of 150°C exceeds the original specification, providing thermal margin.

Similar Parts (Secondary Substitutes for Specific Applications):

B130-E3/5AT and B130-E3/61T from Vishay General Semiconductor maintain 30V/1A ratings with 520 mV forward voltage specification. The 130 mV increase in forward voltage represents a 33% rise from the original SSL13 R3G specification and must be evaluated for thermal and efficiency impact in the target application. Both parts maintain 200 µA reverse leakage current and are in active production.

B130-13-F from Diodes Incorporated provides 30V/1A ratings with 500 mV forward voltage and 500 µA reverse leakage current. The elevated reverse leakage (2.5× original specification) requires assessment for applications sensitive to standby current or leakage-dependent performance.

B130L-13-F from Diodes Incorporated offers improved forward voltage (410 mV) closer to the original specification but exhibits 1 mA reverse leakage current (5× original specification). This part is suitable for applications where forward voltage efficiency is prioritized over reverse leakage characteristics.

Package Variants:

B130LAW-7-F provides equivalent electrical performance in SOD-123 package format, suitable for space-constrained designs where smaller footprint is required.

B130B-13-F and B130LB-13-F are SMB (DO-214AA) package variants offering larger thermal dissipation capability. B130LB-13-F is rated for 2A average rectified current, providing current margin for applications requiring higher current capacity.

Compliance and Certification:

All listed substitute parts comply with RoHS3 and REACH standards. SSL13H carries AEC-Q101 automotive qualification for applications requiring automotive-grade component certification. All parts maintain Moisture Sensitivity Level 1 (Unlimited) classification.

Frequently Asked Questions (FAQ)

Q: Can SSL13 R3G be directly replaced with SSL13 or SSL13H?

A: Yes. SSL13 and SSL13H are parametric equivalents with identical electrical specifications (30V, 1A, 390 mV forward voltage, 200 µA reverse leakage). Both are in active production. SSL13H includes AEC-Q101 automotive qualification. Packaging format (Tape & Reel) is compatible with standard surface mount assembly processes.

Q: What is the difference between SSL13 and SSL13H?

A: SSL13H carries AEC-Q101 automotive qualification and is designated for automotive applications. Electrical specifications are identical. Selection depends on application requirements for automotive-grade certification.

Q: Can STPS1L30A from STMicroelectronics be used as a substitute?

A: Yes. STPS1L30A meets all critical parameters: 30V reverse voltage, 1A average rectified current, fast recovery speed, and DO-214AC (SMA) package. Forward voltage is 395 mV (5 mV higher than SSL13 R3G). Maximum junction temperature is 150°C, exceeding the original 125°C specification. This part is in active production with high availability.

Q: What are the limitations of B130-E3/5AT and B130-E3/61T substitutes?

A: These Vishay parts maintain 30V/1A ratings and 200 µA reverse leakage current but specify 520 mV forward voltage, representing a 33% increase from the original 390 mV specification. This elevated forward voltage increases power dissipation and heat generation. Thermal analysis is required for applications with tight thermal budgets or high-frequency switching conditions.

Q: Why do some substitutes have higher reverse leakage current?

A: Reverse leakage current varies by manufacturer process technology and device design. B130-13-F specifies 500 µA (2.5× original), while B130L-13-F and B130LAW-7-F specify 1 mA (5× original). Applications sensitive to standby current, battery-powered systems, or precision analog circuits require evaluation of leakage impact on system performance.

Q: Can B130LAW-7-F in SOD-123 package replace the DO-214AC (SMA) package version?

A: Electrically, yes. B130LAW-7-F provides equivalent 30V/1A performance with 420 mV forward voltage. However, SOD-123 is a smaller package with different PCB footprint and land pattern. Physical board layout redesign is required. This substitution is suitable only when space constraints justify redesign effort.

Q: Are SMB package variants (B130B-13-F, B130LB-13-F) compatible with SMA footprints?

A: No. SMB (DO-214AA) and SMA (DO-214AC) are different package formats with incompatible footprints and pinouts. SMB packages are larger and provide greater thermal dissipation. Use of SMB variants requires PCB redesign. B130LB-13-F additionally provides 2A current rating, suitable for applications requiring higher current capacity than the original 1A specification.

Q: What is the impact of forward voltage variation on circuit performance?

A: Forward voltage directly affects power dissipation (P = Vf × I) and voltage drop across the diode. Higher forward voltage increases heat generation and reduces efficiency in rectification circuits. For SSL13 R3G at 1A: original dissipation is 390 mW. B130-E3/5AT at 520 mV dissipates 520 mW (33% increase). Thermal design and efficiency analysis are required when forward voltage exceeds 420 mV.

Q: Which substitute offers the closest electrical match to SSL13 R3G?

A: SSL13 and SSL13H from Taiwan Semiconductor Corporation are parametric equivalents with identical specifications. STPS1L30A from STMicroelectronics is the closest alternative from a different manufacturer, with only 5 mV forward voltage variance and identical reverse voltage/current ratings.

Q: Are all listed substitutes RoHS3 and REACH compliant?

A: Yes. All substitute parts listed comply with RoHS3 and REACH standards, matching the original SSL13 R3G compliance status. Moisture Sensitivity Level 1 (Unlimited) is maintained across all alternatives.

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