SS13FL Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS13FL is a 30V, 1A Schottky rectifier diode manufactured by onsemi in SOD-123F surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The SS13FL serves as a fast recovery rectifier suitable for automotive-grade applications with AEC-Q101 qualification. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	5.875	ns
Current - Reverse Leakage @ Vr	30	µA @ 30 V
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123F	—
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS13FL are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Identical Electrical Specifications): Parts that maintain the same 30V reverse voltage, 1A average rectified current, SOD-123F package footprint, and fast recovery characteristics. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Substitutes (Compatible Electrical Specifications with Parameter Variations): Parts that maintain the 30V reverse voltage and fast recovery speed but differ in one or more of the following parameters: average rectified current (1A to 2A), forward voltage drop, reverse leakage current, or package supplier designation (PMDU vs. SOD-123FL). These parts are suitable for applications where the specified parameter variation does not compromise circuit performance.

Key Parameters Determining Substitution Eligibility:

Voltage - DC Reverse (Vr) (Max): Must equal 30V
Technology: Must be Schottky
Speed: Must be Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Must be Surface Mount
Package / Case: Must be SOD-123F or compatible footprint
Current - Average Rectified (Io): Must be ≥ 1A
RoHS Status: Must be ROHS3 Compliant

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Tj (Max)	Product Status
SS13FL	onsemi	30V	1A	550 mV @ 1A	30 µA @ 30V	SOD-123F	125°C	Obsolete
MBR130LSFT1G	onsemi	30V	1A	380 mV @ 1A	1 mA @ 30V	SOD-123F	125°C	Active
RB160MM-30TR	Rohm Semiconductor	30V	1A	480 mV @ 1A	50 µA @ 30V	SOD-123F	125°C	Active
RB162MM-30TR	Rohm Semiconductor	30V	1A	520 mV @ 1A	100 µA @ 30V	SOD-123F	150°C	Active
RBR1MM30ATR	Rohm Semiconductor	30V	1A	480 mV @ 1A	50 µA @ 30V	SOD-123F	150°C	Active
RB070MM-30TR	Rohm Semiconductor	30V	1.5A	490 mV @ 1.5A	50 µA @ 30V	SOD-123F	150°C	Active
RB060MM-30TR	Rohm Semiconductor	30V	2A	490 mV @ 2A	50 µA @ 30V	SOD-123F	150°C	Active
RBR2MM30ATR	Rohm Semiconductor	30V	2A	530 mV @ 2A	50 µA @ 30V	SOD-123F	150°C	Active
RBR2MM30BTR	Rohm Semiconductor	30V	2A	490 mV @ 2A	80 µA @ 30V	SOD-123F	150°C	Active
RSX101MM-30TR	Rohm Semiconductor	30V	1A	390 mV @ 1A	200 µA @ 40V	SOD-123F	150°C	Active
SL03-GS18	Vishay General Semiconductor - Diodes Division	30V	1.1A	430 mV @ 1.1A	130 µA @ 30V	DO-219AB	125°C	Active

Engineering Selection Recommendations

Primary Recommendation: MBR130LSFT1G (onsemi)

The MBR130LSFT1G is the direct equivalent substitute for the obsolete SS13FL. Both components are manufactured by onsemi, share identical electrical ratings (30V, 1A), and use the same SOD-123F package. The MBR130LSFT1G is in active production status with 23,400 units in stock. Forward voltage performance is superior (380 mV vs. 550 mV @ 1A), resulting in lower power dissipation. This part maintains ROHS3 compliance and MSL 1 rating. No circuit modifications are required for direct substitution.

Secondary Recommendations: Rohm Semiconductor 1A Alternatives

For applications requiring extended thermal performance or alternative sourcing, the following Rohm Semiconductor parts maintain 1A current rating and 30V reverse voltage:

RB160MM-30TR: Forward voltage of 480 mV @ 1A with 125°C maximum junction temperature. Reverse leakage of 50 µA @ 30V. Suitable for designs with thermal constraints matching the original SS13FL specification.
RBR1MM30ATR: Forward voltage of 480 mV @ 1A with 150°C maximum junction temperature. Reverse leakage of 50 µA @ 30V. Provides thermal margin above the original specification.
RB162MM-30TR: Forward voltage of 520 mV @ 1A with 150°C maximum junction temperature. Reverse leakage of 100 µA @ 30V. Closest forward voltage match to the original SS13FL (550 mV).

Higher Current Alternatives: 1.5A and 2A Options

For applications where current headroom is beneficial:

RB070MM-30TR: 1.5A rating with 490 mV forward voltage @ 1.5A and 150°C maximum junction temperature.
RB060MM-30TR and RBR2MM30ATR/BTR: 2A rating with forward voltages ranging from 490 to 530 mV and 150°C maximum junction temperature.

Alternative Package Option: SL03-GS18 (Vishay)

The SL03-GS18 is a 30V, 1.1A Schottky diode in DO-219AB (SMF) package from Vishay. This part offers superior forward voltage performance (430 mV @ 1.1A) but requires PCB layout modification due to different package footprint. Maximum junction temperature is 125°C, matching the original SS13FL. This option is suitable only when package footprint change is acceptable.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. All parts are classified as EAR99 for export control purposes and are REACH Unaffected. Automotive-grade applications should note that the original SS13FL carries AEC-Q101 qualification; substitute part selection should confirm AEC-Q101 status if automotive qualification is a design requirement.

Frequently Asked Questions (FAQ)

Q: Can the MBR130LSFT1G directly replace the SS13FL without circuit modification?

A: Yes. The MBR130LSFT1G is electrically and mechanically equivalent to the SS13FL. Both components have 30V reverse voltage rating, 1A average rectified current, SOD-123F package, and fast recovery characteristics. Pin configuration and footprint are identical. No circuit changes are required.

Q: What is the difference between the Rohm Semiconductor 1A parts (RB160MM-30TR, RBR1MM30ATR, RB162MM-30TR)?

A: All three parts maintain 30V reverse voltage and 1A current rating. Primary differences are forward voltage (480 mV, 480 mV, and 520 mV respectively @ 1A) and maximum junction temperature (125°C, 150°C, and 150°C respectively). RB162MM-30TR has the highest forward voltage, closest to the original SS13FL specification. RBR1MM30ATR and RB160MM-30TR offer lower forward voltage and thermal performance advantages.

Q: Why would I select a 2A rated diode (RB060MM-30TR or RBR2MM30ATR) instead of a 1A rated substitute?

A: Higher current rating provides design margin for transient conditions and thermal stress. A 2A diode operating at 1A average current experiences lower junction temperature rise and extended component lifetime. This selection is appropriate for applications with variable load conditions or thermal constraints.

Q: Is the SL03-GS18 (Vishay) a suitable substitute?

A: The SL03-GS18 is electrically compatible (30V, 1.1A, fast recovery Schottky) but uses DO-219AB (SMF) package instead of SOD-123F. PCB layout modification is required. This part is suitable only when package footprint change is acceptable and PCB redesign is feasible.

Q: What is the significance of the forward voltage difference between SS13FL (550 mV) and MBR130LSFT1G (380 mV)?

A: Forward voltage directly affects power dissipation in the diode. Lower forward voltage reduces heat generation. At 1A current, the MBR130LSFT1G dissipates 170 mV less voltage drop than the SS13FL, resulting in lower thermal load. This is a performance advantage in power-sensitive applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts listed in this document are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts are REACH Unaffected and classified as EAR99 for export control.

Q: Does the SS13FL have automotive qualification that I need to match?

A: The SS13FL carries AEC-Q101 automotive qualification. If your application requires automotive-grade components, confirm AEC-Q101 status with the substitute part manufacturer or distributor before selection. Not all substitute parts listed carry explicit AEC-Q101 designation.

Q: What is the reverse leakage current difference between parts, and does it matter?

A: Reverse leakage current ranges from 1 µA (MBR130LSFT1G) to 200 µA (RSX101MM-30TR) @ specified voltage. Higher reverse leakage increases standby power consumption and heat generation. For low-power or battery-operated applications, parts with lower reverse leakage (MBR130LSFT1G, RB160MM-30TR, RBR1MM30ATR) are preferred.

Q: Can I use a substitute part with higher maximum junction temperature (150°C vs. 125°C)?

A: Yes. A higher maximum junction temperature rating provides thermal margin and does not compromise circuit function. Parts with 150°C maximum junction temperature (Rohm Semiconductor alternatives) offer extended thermal performance compared to the original SS13FL (125°C) and MBR130LSFT1G (125°C).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message