SK53L-TP Equivalent & Substitute Parts

Part Overview

The SK53L-TP is a 30V, 5A Schottky rectifier diode in Surface Mount DO-214AB (SMC) package supplied by Micro Commercial Co. This component is classified as Not For New Designs, indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

SK53L-TP

Micro Commercial CoIn Stock: 4041SK53L-TP Datasheet

Current PartRFQ

SSC53L-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1724SSC53L-E3/57T Datasheet

SimilarRFQ

SSC53L-E3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 2756SSC53L-E3/9AT Datasheet

SimilarRFQ

B530C-13-F

Diodes IncorporatedIn Stock: 17088B530C-13-F Datasheet

Parametric EquivalentRFQ

SK53C

Taiwan Semiconductor CorporationIn Stock: 12238SK53C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SK53L-TP are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 5 A
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these core electrical specifications and package compatibility. Variations in forward voltage (Vf), reverse leakage current (Ir), and operating temperature range are noted but do not preclude substitution when the primary criteria are met.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

The B530C-13-F (Diodes Incorporated) and SK53C (Taiwan Semiconductor Corporation) provide direct electrical equivalence to the SK53L-TP, matching the forward voltage specification of 550 mV @ 5 A and operating temperature range of -55°C ~ 150°C. Both parts are Active products with ROHS3 compliance and MSL 1 rating. The B530C-13-F offers the highest inventory availability (17,065 pcs) among active alternatives.

For Enhanced Performance (Lower Forward Voltage):

The SSC53L-E3/57T and SSC53L-E3/9AT (Vishay General Semiconductor - Diodes Division) offer improved forward voltage characteristics at 450 mV @ 5 A, representing a 100 mV reduction compared to the SK53L-TP. Both are Active products with extended operating temperature range (-65°C ~ 150°C). The SSC53L-E3/9AT is supplied in Tape & Reel packaging matching the SK53L-TP format, while the SSC53L-E3/57T is supplied in Cut Tape & Digi-Reel format.

All substitute parts maintain the 30V reverse voltage rating, 5A average rectified current, fast recovery speed characteristic, DO-214AB (SMC) package compatibility, and surface mount mounting type required for functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the SSC53L-E3/57T and SSC53L-E3/9AT be used interchangeably with the SK53L-TP?

A: Both Vishay parts are electrically equivalent to the SK53L-TP in terms of voltage and current ratings. The primary difference is forward voltage (450 mV vs. 550 mV @ 5 A), which represents improved efficiency. The SSC53L-E3/9AT matches the Tape & Reel packaging of the SK53L-TP, while the SSC53L-E3/57T uses Cut Tape & Digi-Reel packaging. Both are compatible with the same PCB footprint and reflow soldering processes.

Q: What is the difference between the B530C-13-F and SK53C substitutes?

A: Both parts provide identical electrical specifications to the SK53L-TP (550 mV @ 5 A forward voltage, -55°C ~ 150°C operating range). The B530C-13-F is manufactured by Diodes Incorporated with higher inventory availability (17,065 pcs), while the SK53C is manufactured by Taiwan Semiconductor Corporation (12,200 pcs available). Both are Active products with full ROHS3 compliance.

Q: Why do the Vishay parts have lower forward voltage than the SK53L-TP?

A: Forward voltage variation is a normal characteristic within Schottky diode manufacturing tolerances. The SSC53L-E3/57T and SSC53L-E3/9AT operate at 450 mV @ 5 A compared to the SK53L-TP specification of 550 mV @ 5 A. This represents improved performance and lower power dissipation in the application circuit.

Q: Are all substitute parts suitable for new designs?

A: The SSC53L-E3/57T, SSC53L-E3/9AT, B530C-13-F, and SK53C are all classified as Active products and are suitable for new designs. The original SK53L-TP is classified as Not For New Designs and should be replaced with one of these active alternatives in new development.

Q: Do all substitute parts have the same package footprint?

A: All substitute parts use the DO-214AB (SMC) package, which provides identical PCB footprint compatibility. Packaging format differences (Tape & Reel vs. Cut Tape & Digi-Reel) affect supply and handling but do not impact board-level compatibility or soldering processes.

Q: What is the significance of the extended temperature range in the Vishay parts?

A: The SSC53L-E3/57T and SSC53L-E3/9AT operate from -65°C to 150°C compared to -55°C to 150°C for the SK53L-TP. This extended lower temperature limit provides additional margin for applications operating in cold environments, though both ranges satisfy standard industrial temperature specifications.

Q: Are reverse leakage current differences significant for substitution?

A: Reverse leakage current varies among the substitute parts (700 µA to 1 mA @ 30 V). These variations fall within acceptable ranges for Schottky diode applications and do not preclude substitution. Applications with stringent leakage requirements should reference specific circuit design parameters.