SS13L Equivalent & Substitute Parts

Part Overview

The SS13L is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). The device is classified as "Not For New Designs," indicating it is an obsolete or legacy component. Identification of equivalent and substitute parts is necessary for design continuity, inventory management, and production support of existing systems utilizing this diode.

Key Parameters

Parameter	Value
Manufacturer Part Number	SS13L
Manufacturer	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers
Technology	Schottky
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 ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	400 µA @ 30 V
Package / Case	DO-219AB
Supplier Device Package	Sub SMA
Operating Temperature - Junction	-55°C to 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the SS13L are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications and package form factor. These parts are direct replacements with no circuit redesign required:

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 ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 400 µA @ 30 V
Package / Case: DO-219AB
Supplier Device Package: Sub SMA
Operating Temperature - Junction: -55°C to 125°C

Functional Equivalent provides higher voltage rating with compatible current and thermal specifications but requires package footprint verification:

Voltage - DC Reverse (Vr) (Max): 40 V (higher rating)
Current - Average Rectified (Io): 1 A (identical)
Package / Case: SOD-123W (different package)

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Package	Product Status	Inventory (Pcs)
SS13L	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Not For New Designs	15,400
SS13L M2G	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	976
SS13L MHG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	810
SS13L MTG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	1,088
SS13L R3G	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	903
SS13L RFG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	956
SS13L RHG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	967
SS13L RQG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	733
SS13L RTG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	776
SS13L RUG	Taiwan Semiconductor Corporation	30 V	1 A	500 mV @ 1 A	DO-219AB (Sub SMA)	Active	871
SS14LW	Taiwan Semiconductor Corporation	40 V	1 A	550 mV @ 1 A	SOD-123W	Active	78,875

Engineering Selection Recommendations

Parametric Equivalent Selection (Recommended for Direct Replacement)

The following part numbers are parametric equivalents of the SS13L and are classified as Active products:

SS13L M2G
SS13L MHG
SS13L MTG
SS13L R3G
SS13L RFG
SS13L RHG
SS13L RQG
SS13L RTG
SS13L RUG

These parts maintain identical electrical ratings (30 V, 1 A, 500 mV forward voltage) and package specifications (DO-219AB Sub SMA). All are ROHS3 compliant, REACH unaffected, and rated for -55°C to 125°C junction temperature operation. Selection among these equivalents is based on packaging availability (Tape & Reel vs. bulk) and inventory levels. Parts with Tape & Reel packaging include SS13L R3G and SS13L RUG.

Functional Equivalent Selection (Higher Voltage Rating)

The SS14LW is a functional equivalent with elevated voltage rating:

Voltage - DC Reverse (Vr) (Max): 40 V (versus 30 V for SS13L)
Current - Average Rectified (Io): 1 A (identical)
Forward Voltage: 550 mV @ 1 A (50 mV higher than SS13L)
Package: SOD-123W (different from Sub SMA)

The SS14LW is suitable for applications where higher reverse voltage margin is required. The package change from DO-219AB to SOD-123W requires PCB footprint verification and potential layout modification. This part is Active and has substantial inventory availability (78,875 pcs).

Frequently Asked Questions (FAQ)

Q: Can I use any of the SS13L parametric equivalents as a direct replacement?

A: Yes. All parametric equivalent part numbers (SS13L M2G, SS13L MHG, SS13L MTG, SS13L R3G, SS13L RFG, SS13L RHG, SS13L RQG, SS13L RTG, SS13L RUG) are electrically and mechanically identical to the SS13L. They share the same voltage rating (30 V), current rating (1 A), forward voltage (500 mV @ 1 A), and package form factor (DO-219AB Sub SMA). No circuit modification is required.

Q: What is the difference between the parametric equivalents?

A: The parametric equivalents differ only in manufacturing date codes and packaging format. Some are supplied in Tape & Reel (TR) format, while others are supplied in bulk. All maintain identical electrical and thermal specifications.

Q: Can I substitute the SS14LW for the SS13L?

A: The SS14LW is a functional equivalent with a higher reverse voltage rating (40 V versus 30 V). It maintains the same 1 A current rating and fast recovery speed. However, the package differs: SS14LW uses SOD-123W while SS13L uses DO-219AB Sub SMA. PCB footprint compatibility must be verified before substitution. The forward voltage is also 50 mV higher (550 mV @ 1 A versus 500 mV @ 1 A).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parametric equivalents and the SS14LW functional equivalent are ROHS3 compliant and REACH unaffected, matching the compliance status of the original SS13L.

Q: What is the operating temperature range for these diodes?

A: All listed parts, including the SS13L and all substitutes, are rated for junction temperature operation from -55°C to 125°C.

Q: Which substitute part has the highest inventory availability?

A: The SS14LW functional equivalent has the highest inventory at 78,875 pcs. Among parametric equivalents, SS13L M2G has 976 pcs available.

Q: Do I need to modify my circuit to use a parametric equivalent?

A: No. Parametric equivalents require no circuit modification. They are pin-compatible, electrically identical, and use the same package footprint as the SS13L.

Q: What is the reverse leakage current specification?

A: The SS13L and all parametric equivalents specify 400 µA reverse leakage current at 30 V. The SS14LW specifies 100 µA reverse leakage current at 40 V.

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