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SK54L_R1_00001
Panjit International Inc.
DIODE SCHOTTKY 40V 5A SMC
5251 Pcs New Original In Stock
Diode 40 V 5A Surface Mount SMC (DO-214AB)
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Minimum 1
5.0 / 5.0
- (419 Ratings)
SK54L_R1_00001
Product Overview
12965537
DiGi Electronics Part Number
SK54L_R1_00001-DGManufacturer
Panjit International Inc.
SK54L_R1_00001
Description
DIODE SCHOTTKY 40V 5A SMCInventory
5251 Pcs New Original In Stock
Diode 40 V 5A Surface Mount SMC (DO-214AB)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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365 - Day Quality Guarantee - Every part fully backed.
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SK54L_R1_00001 Technical Specifications
Category
Diodes, Rectifiers, Single Diodes
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Technology
Schottky
Voltage - DC Reverse (Vr) (Max)
40 V
Current - Average Rectified (Io)
5A
Voltage - Forward (Vf) (Max) @ If
440 mV @ 5 A
Speed
Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr
500 µA @ 40 V
Capacitance @ Vr, F
-
Mounting Type
Surface Mount
Package / Case
DO-214AB, SMC
Supplier Device Package
SMC (DO-214AB)
Operating Temperature - Junction
-55°C ~ 150°C
Base Product Number
SK54
Datasheet & Documents
HTML Datasheet
SK54L_R1_00001-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
3757-SK54L_R1_00001TR
Standard Package
800
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
포장 세공이 정교하고, 배송 진행 상태도 매번 친절하게 안내되어 좋아요.
грудня 02, 2025
Des prix très raisonnables pour une qualité que j'apprécie énormément.
грудня 02, 2025
The company's dedication to supporting their customers after purchase truly stands out.
грудня 02, 2025
I've purchased multiple items from DiGi Electronics, and each has proven to be both reliable and reasonably priced.
грудня 02, 2025
DiGi Electronics ensures fast delivery times and maintains high product standards.
грудня 02, 2025
Their commitment to variety and safe delivery sets them apart in the industry.
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Frequently Asked Questions (FAQ)
What are the thermal design considerations when using the SK54L_R1_00001 in a high-temperature environment near its 150°C junction limit?
When operating the SK54L_R1_00001 near its maximum junction temperature of 150°C, adequate PCB copper pad area (typically 1 inch² of 2 oz copper) is critical for heat dissipation. Without sufficient thermal vias and copper mass, the diode may exceed safe operating temperatures under continuous 5A load. Use the transient thermal impedance characteristics (if available in Panjit's application notes) to model short-term power surges. Derate current above 75°C ambient and consider forced airflow in enclosed systems to avoid thermal runaway due to rising reverse leakage current with temperature.
How does the SK54L_R1_00001 compare to the SS54 Schottky diode in terms of leakage current and suitability for low-power standby circuits?
The SK54L_R1_00001 has a maximum reverse leakage of 500 µA at 40V, which is higher than the SS54's typical 200 µA under the same conditions. In battery-powered or standby applications where leakage directly impacts quiescent current, this difference can significantly reduce battery life. For instance, in a 12V backup system, the SK54L_R1_00001 could waste an extra 0.4mA compared to SS54. Consider using the SS54 or adding a series MOSFET for reverse blocking if ultra-low leakage is required, especially in portable or IoT devices.
Can the SK54L_R1_00001 be used as a drop-in replacement for the SB540 in a 12V automotive power rectifier circuit with possible load dump events?
While both the SK54L_R1_00001 and SB540 are 40V 5A Schottky diodes in SMC packages, caution is advised during load dump scenarios. The SB540 typically has better surge current handling (IFSM up to 150A vs ~80A estimated for SK54L_R1_00001 based on similar Panjit parts). Load dump voltages can momentarily exceed 40V; the SK54L_R1_00001 may fail prematurely if transient voltage clamping (e.g., TVS diodes) is not implemented. Always validate with actual load dump testing per ISO 7637-2, especially in 12V automotive systems where voltage spikes are common.
What are the risks of using the SK54L_R1_00001 in a high-frequency switching power supply above 500kHz?
Although classified as a 'fast recovery' diode, the SK54L_R1_00001's reverse recovery characteristics are not specified below 500ns, making it suboptimal for switching frequencies above 500kHz. At higher frequencies, uncontrolled reverse recovery can cause voltage ringing, increased EMI, and switching losses in the MOSFET. For such applications, consider faster alternatives like the Vishay VS-5EHJ40FNQI (40V, 5A, 15ns trr). If using the SK54L_R1_00001, minimize PCB trace inductance and implement RC snubbers to dampen oscillations and prevent secondary breakdown.
How does the forward voltage drop of the SK54L_R1_00001 impact efficiency in a 5V/5A DC-DC buck converter, and are there trade-offs with lower Vf alternatives?
The SK54L_R1_00001 has a maximum Vf of 440 mV at 5A, contributing to conduction losses of up to 2.2W (P = Vf × I). In a 5V/5A buck converter, this represents ~4.4% efficiency loss just in the freewheeling diode. While low Vf Schottky diodes like the ON Semiconductor FSB5H45 (400 mV max) offer slight improvement, they often have higher leakage. The trade-off between Vf and leakage must be evaluated based on duty cycle and operating temperature. For higher efficiency, consider synchronous rectification with a MOSFET, especially in thermally constrained designs where 2W of dissipation may require large copper areas.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
SK54L_R1_00001 CAD Models
Panjit International Inc. SK54L_R1_00001 PCB symbols & footprints
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