SS13LHRFG Equivalent & Substitute Parts

Part Overview

The SS13LHRFG is a 30V, 1A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in a Sub SMA surface mount package (DO-219AB). This component is classified as a fast recovery diode with a maximum forward voltage of 500 mV at 1A and reverse leakage current of 400 µA at 30V. The part is AEC-Q101 qualified for automotive applications and carries Active product status with ROHS3 compliance.

Equivalent and substitute parts are identified to address component availability, supply chain continuity, and specific application requirements while maintaining electrical and mechanical compatibility within the defined parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 30 V
Technology	Schottky	—
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55°C ~ 125°C	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS13LHRFG are classified into two categories based on electrical parameter compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 30V reverse voltage rating, 1A average rectified current, 500 mV forward voltage at 1A, fast recovery speed characteristics, and equivalent reverse leakage current. These parts are direct functional replacements with no circuit performance impact.

Similar Parts share the same reverse voltage rating (30V) and package form factor (DO-219AB) but differ in one or more electrical parameters. These parts are suitable for applications where the specified parameter variance does not compromise circuit function.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 30V
Current - Average Rectified (Io): Must equal or exceed 1A
Package / Case: Must be DO-219AB
Technology: Must be Schottky
Mounting Type: Must be Surface Mount
Speed: Must be Fast Recovery ≤ 500ns, > 200mA (Io)

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Reverse Leakage @ Vr [µA]	Package	Temp Range [°C]	AEC-Q101
SS13LHRFG	Taiwan Semiconductor Corporation	30	1	500 @ 1A	400 @ 30V	DO-219AB	-55 ~ 125	Yes
SS13L RVG	Taiwan Semiconductor Corporation	30	1	500 @ 1A	400 @ 30V	DO-219AB	-55 ~ 125	No
SL03-GS18	Vishay General Semiconductor - Diodes Division	30	1.1	430 @ 1.1A	130 @ 30V	DO-219AB	-55 ~ 125	No
SS1FL3-M3/H	Vishay General Semiconductor - Diodes Division	30	1	480 @ 1A	200 @ 30V	DO-219AB	-55 ~ 150	No
SS1FL3HM3/H	Vishay General Semiconductor - Diodes Division	30	1	480 @ 1A	200 @ 30V	DO-219AB	-55 ~ 150	Yes
SS2FL3-M3/H	Vishay General Semiconductor - Diodes Division	30	2	540 @ 2A	200 @ 30V	DO-219AB	-55 ~ 150	No
SS2FL3HM3/H	Vishay General Semiconductor - Diodes Division	30	2	540 @ 2A	200 @ 30V	DO-219AB	-55 ~ 150	Yes

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent):

SS13L RVG is a parametric equivalent to SS13LHRFG with identical electrical specifications. Both parts maintain 30V reverse voltage, 1A average rectified current, and 500 mV forward voltage at 1A. The primary difference is packaging format: SS13LHRFG is supplied in standard packaging while SS13L RVG is supplied in Cut Tape (CT) format. Both parts are ROHS3 compliant and carry MSL 1 rating. Selection between these parts depends on procurement and assembly requirements.

Automotive-Qualified Alternatives:

SS1FL3HM3/H and SS2FL3HM3/H are both AEC-Q101 qualified, matching the automotive qualification of the SS13LHRFG. SS1FL3HM3/H maintains the 1A current rating with improved forward voltage characteristics (480 mV vs. 500 mV at 1A) and extended temperature range (-55°C to 150°C). SS2FL3HM3/H provides 2A current capacity with the same 30V voltage rating, suitable for applications requiring higher current handling.

General-Purpose Alternatives:

SS1FL3-M3/H and SS2FL3-M3/H are non-automotive qualified alternatives from Vishay. SS1FL3-M3/H matches the 1A current specification with improved forward voltage (480 mV) and extended temperature range. SS2FL3-M3/H provides 2A capacity. Both are ROHS3 compliant with MSL 1 rating.

Higher Current Option:

SL03-GS18 from Vishay provides 1.1A capacity at 30V with superior forward voltage characteristics (430 mV at 1.1A) and lower reverse leakage (130 µA vs. 400 µA). This part is suitable for applications where marginal current increase and improved efficiency are beneficial.

All substitute parts maintain DO-219AB package compatibility, Schottky technology, fast recovery speed characteristics, and surface mount mounting type. Selection should be based on specific application requirements for current capacity, temperature range, automotive qualification status, and forward voltage performance.

Frequently Asked Questions (FAQ)

Q: Can SS13L RVG be used as a direct replacement for SS13LHRFG?

A: Yes. SS13L RVG is a parametric equivalent with identical electrical specifications: 30V reverse voltage, 1A average rectified current, 500 mV forward voltage at 1A, and equivalent reverse leakage current. The difference is packaging format (Cut Tape vs. standard packaging). Both are ROHS3 compliant and MSL 1 rated.

Q: What is the difference between SS1FL3HM3/H and SS1FL3-M3/H?

A: Both parts share identical electrical specifications: 30V reverse voltage, 1A current rating, 480 mV forward voltage at 1A, and 200 µA reverse leakage. The primary differences are packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) and automotive qualification. SS1FL3HM3/H carries AEC-Q101 qualification while SS1FL3-M3/H does not.

Q: Can I use SS2FL3HM3/H in place of SS13LHRFG?

A: SS2FL3HM3/H is electrically compatible with SS13LHRFG in terms of reverse voltage (30V) and package (DO-219AB). However, SS2FL3HM3/H is rated for 2A average rectified current compared to 1A for SS13LHRFG. This higher current rating does not prevent substitution; the part will function correctly in circuits designed for 1A operation. SS2FL3HM3/H also carries AEC-Q101 qualification and extended temperature range (-55°C to 150°C).

Q: What does the forward voltage difference mean between parts?

A: Forward voltage (Vf) is the voltage drop across the diode when conducting current in the forward direction. SS13LHRFG specifies 500 mV at 1A, while SS1FL3-M3/H specifies 480 mV at 1A. Lower forward voltage results in reduced power dissipation and improved circuit efficiency. Parts with lower forward voltage are generally preferred when thermal management is a consideration.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the environmental compliance of SS13LHRFG.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. Parts carrying this qualification have undergone rigorous testing for reliability and performance in automotive applications. SS13LHRFG, SS1FL3HM3/H, and SS2FL3HM3/H are AEC-Q101 qualified. Non-qualified parts (SS13L RVG, SL03-GS18, SS1FL3-M3/H, SS2FL3-M3/H) are suitable for general-purpose applications but not specified for automotive use.

Q: Can I use SL03-GS18 as a substitute?

A: SL03-GS18 is electrically compatible with SS13LHRFG for the critical parameters: 30V reverse voltage, DO-219AB package, and fast recovery Schottky technology. SL03-GS18 provides 1.1A capacity (exceeding the 1A requirement) with superior forward voltage characteristics (430 mV vs. 500 mV). However, SL03-GS18 is not AEC-Q101 qualified and is supplied in Tape & Reel format. Selection depends on whether automotive qualification is required for the application.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) and Tape & Reel (TR) are different supply formats for surface mount components. Tape & Reel is a continuous reel format suitable for high-volume automated assembly. Cut Tape is individual tape segments suitable for lower-volume or manual assembly. Both formats contain the same component; the difference is in procurement and assembly process compatibility.

Q: Why does reverse leakage current vary between parts?

A: Reverse leakage current (Ir) is the small current that flows through a reverse-biased diode. SS13LHRFG specifies 400 µA at 30V, while Vishay parts specify 200 µA at 30V, and SL03-GS18 specifies 130 µA at 30V. Lower reverse leakage indicates better diode quality and lower power dissipation in reverse bias conditions. All values are within acceptable ranges for Schottky diode technology.

Q: Can I substitute a 2A-rated part (SS2FL3HM3/H) for a 1A-rated part (SS13LHRFG)?

A: Yes. A higher current-rated diode can be used in circuits designed for lower current operation. The 2A-rated part will function correctly and reliably in a 1A circuit. The primary consideration is physical space and thermal management, as the part may have different physical dimensions or thermal characteristics. Both SS2FL3HM3/H and SS13LHRFG use the same DO-219AB package, so physical compatibility is maintained.

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