SSC53L-E3/51T Equivalent & Substitute Parts

Part Overview

The SSC53L-E3/51T is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 30 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) surface mount package. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing production and design requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with acceptable parameter variations within engineering tolerances.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	450 mV @ 5 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	700 µA @ 30 V	—
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-65°C to 150°C	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SSC53L-E3/51T is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V minimum
Current - Average Rectified (Io): 5 A minimum
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: DO-214AB or SMC equivalent
Operating Temperature Range: Must encompass -65°C to 150°C or be acceptable for the application

Acceptable Parameter Variations:

Forward Voltage (Vf): Variations up to 100 mV above the 450 mV specification are acceptable for Schottky rectifiers in this class
Reverse Leakage Current: Variations within typical manufacturing tolerances are acceptable
Reverse Voltage: Parts rated above 30 V are acceptable substitutes
Current Rating: Parts rated above 5 A are acceptable substitutes

Substitute parts are grouped into three categories:

Parametric Equivalents (Vishay SSC53 Series): Identical electrical specifications with different packaging or tape configurations. These parts maintain the exact 450 mV forward voltage and 700 µA reverse leakage specifications.
Manufacturer Recommended Substitutes (Cross-Manufacturer): Parts from alternative manufacturers (Diodes Incorporated, Microchip Technology, Micro Commercial Co) that meet or exceed the primary electrical requirements. These may exhibit acceptable variations in forward voltage and reverse leakage within engineering tolerances.
Functional Alternatives: Parts with higher current ratings or voltage ratings that provide backward compatibility while offering enhanced performance margins.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Product Status	Temperature Range [°C]
SSC53L-E3/51T	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Obsolete	-65 to 150
SSC53L-E3/57T	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
SSC53L-E3/9AT	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
SSC53L-M3/57T	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
SSC53L-M3/9AT	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
SSC53LHE3_A/H	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
SSC53LHE3_A/I	Vishay	30	5	450 @ 5A	700 @ 30V	DO-214AB (SMC)	Active	-65 to 150
B530C-13-F	Diodes Incorporated	30	5	550 @ 5A	500 @ 30V	DO-214AB (SMC)	Active	-55 to 150
LSM535J/TR13	Microchip Technology	35	5	520 @ 5A	2000 @ 35V	DO-214AB	Active	-55 to 150
SK53L-TP	Micro Commercial Co	30	5	550 @ 5A	1000 @ 30V	DO-214AB (SMC)	Not For New Designs	-55 to 150
SK153-TP	Micro Commercial Co	30	15	550 @ 15A	1000 @ 30V	DO-214AB (HSMC)	Obsolete	-55 to 125

Engineering Selection Recommendations

Primary Recommendation - Parametric Equivalents:

For direct replacement of the obsolete SSC53L-E3/51T, select from the active Vishay SSC53 series equivalents:

SSC53L-E3/57T (Cut Tape & Digi-Reel packaging, 1699 pcs in stock)
SSC53L-E3/9AT (Tape & Reel packaging, 2706 pcs in stock)
SSC53L-M3/57T (Tape & Reel packaging, 4038 pcs in stock)
SSC53L-M3/9AT (Tape & Reel packaging, 946 pcs in stock)

These parts maintain identical electrical specifications and full temperature range compatibility (-65°C to 150°C). Selection among these options is determined by packaging and tape configuration requirements for automated assembly.

Automotive-Grade Alternative:

For applications requiring automotive qualification:

SSC53LHE3_A/H (AEC-Q101 qualified, 1700 pcs in stock)
SSC53LHE3_A/I (AEC-Q101 qualified, 1105 pcs in stock)

These parts are identical in electrical performance to the standard SSC53L variants and maintain the full operating temperature range.

Cross-Manufacturer Substitutes:

When Vishay SSC53 series parts are unavailable:

B530C-13-F (Diodes Incorporated, 17065 pcs in stock): Meets all primary electrical requirements. Forward voltage is 100 mV higher (550 mV vs. 450 mV), which is within acceptable engineering tolerance for Schottky rectifiers. Reverse leakage is lower (500 µA vs. 700 µA). Operating temperature range is -55°C to 150°C, which is acceptable for most applications. ROHS3 compliant.
SK53L-TP (Micro Commercial Co, 3960 pcs in stock): Meets all primary electrical requirements. Forward voltage is 100 mV higher (550 mV vs. 450 mV). Reverse leakage is higher (1000 µA vs. 700 µA). Operating temperature range is -55°C to 150°C. Product status is "Not For New Designs," limiting suitability for new development.

Higher Voltage Alternative:

LSM535J/TR13 (Microchip Technology, 730 pcs in stock): Provides 35 V reverse voltage rating, offering enhanced voltage margin. Forward voltage is 520 mV and reverse leakage is 2000 µA. Operating temperature range is -55°C to 150°C. RoHS non-compliant status may restrict use in regulated applications.

Higher Current Alternative:

SK153-TP (Micro Commercial Co, 3500 pcs in stock): Rated for 15 A average rectified current, providing 3× current margin. Reverse voltage and package are identical. Product status is obsolete, limiting long-term availability.

Frequently Asked Questions (FAQ)

Q: Can SSC53L-E3/51T be replaced with SSC53L-E3/57T?

A: Yes. SSC53L-E3/57T is a parametric equivalent with identical electrical specifications (30 V, 5 A, 450 mV forward voltage, 700 µA reverse leakage) and the same operating temperature range (-65°C to 150°C). The difference is packaging configuration (Cut Tape & Digi-Reel vs. the original configuration). Both are ROHS3 compliant and MSL 1.

Q: What is the difference between SSC53L-E3/9AT and SSC53L-M3/9AT?

A: Both parts are parametric equivalents with identical electrical specifications and operating temperature range. The difference is in the manufacturing code designation (E3 vs. M3), which reflects different manufacturing batches or facilities within Vishay. Both are active products suitable for new designs.

Q: Can I use B530C-13-F as a direct replacement?

A: B530C-13-F is a functional substitute that meets the primary electrical requirements (30 V, 5 A, DO-214AB package). The forward voltage is 100 mV higher (550 mV vs. 450 mV), which is within acceptable tolerance for Schottky rectifiers. The reverse leakage is lower (500 µA vs. 700 µA). The operating temperature range is -55°C to 150°C, which is acceptable for most applications but does not extend to -65°C. This part is suitable for replacement in applications where the lower temperature limit of -55°C is acceptable.

Q: Why is LSM535J/TR13 listed as a substitute if it has a 35 V rating?

A: LSM535J/TR13 is listed as a functional alternative because it meets or exceeds all primary electrical requirements (35 V reverse voltage, 5 A current, DO-214AB package, fast recovery Schottky technology). The higher voltage rating provides additional design margin. However, the forward voltage (520 mV) and reverse leakage (2000 µA) differ from the original specification. This part is suitable for applications where the higher voltage rating is beneficial and the parameter variations are acceptable. Note that this part is RoHS non-compliant.

Q: What does "Not For New Designs" mean for SK53L-TP?

A: "Not For New Designs" indicates that the manufacturer (Micro Commercial Co) has designated this part as end-of-life or in a transition phase. While the part is currently in stock and functionally equivalent, it is not recommended for incorporation into new product designs due to uncertain long-term availability. For new designs, select from active status parts such as the Vishay SSC53 series or B530C-13-F.

Q: Are the automotive-grade variants (SSC53LHE3_A/H and SSC53LHE3_A/I) electrically identical to standard SSC53L parts?

A: Yes. SSC53LHE3_A/H and SSC53LHE3_A/I are electrically identical to the standard SSC53L variants (30 V, 5 A, 450 mV forward voltage, 700 µA reverse leakage, -65°C to 150°C operating range). The difference is AEC-Q101 automotive qualification, which certifies the parts for automotive applications. These variants are suitable for replacement in any application where the standard parts are used, with the added benefit of automotive qualification for regulated applications.

Q: Can I use SK153-TP (15 A rated) instead of SSC53L-E3/51T (5 A rated)?

A: SK153-TP can be used as a functional alternative in applications where the higher current rating provides design margin. However, SK153-TP is obsolete, limiting long-term availability. The package designation is DO-214AB (HSMC), which is a higher current variant of the SMC package. The operating temperature range is -55°C to 150°C, which does not extend to -65°C. For new designs or long-term production, select from active status parts.

Q: What packaging options are available for the SSC53L-E3/51T replacement?

A: Packaging options for Vishay SSC53 equivalents include:

Cut Tape (CT) & Digi-Reel: SSC53L-E3/57T
Tape & Reel (TR): SSC53L-E3/9AT, SSC53L-M3/57T, SSC53L-M3/9AT, SSC53LHE3_A/H, SSC53LHE3_A/I

All variants use the DO-214AB (SMC) package. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Is the SSC53L-E3/51T RoHS compliant?

A: Yes. SSC53L-E3/51T is ROHS3 compliant. All recommended Vishay SSC53 series equivalents and B530C-13-F are also ROHS3 compliant. LSM535J/TR13 is RoHS non-compliant and should not be used in applications requiring RoHS compliance.

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