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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Vishay General Semiconductor - Diodes Division 1N5818-E3/53

Name: 1N5818-E3/53
Brand: Vishay General Semiconductor - Diodes Division
SKU: 1N5818-E3/53
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5818-E3/53

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: 1N5818-E3/53.pdf

Description:: DIODE SCHOTTKY 30V 1A DO204AL

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Inventory:8,980

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Product details

Overview

1N5818-E3/53 from Vishay General Semiconductor is a Schottky barrier plastic rectifier diode rated for 30 V repetitive peak reverse voltage, 1.0 A average forward current, and 0.55 V forward voltage at 1.0 A, used in DC/DC converters and polarity protection circuits where low conduction loss and fast switching are required.

For engineers reviewing the 1N5818-E3/53 datasheet, 1N5818-E3/53 pinout, 1N5818-E3/53 application, or 1N5818-E3/53 equivalent, key selection criteria include its DO-41 package, 25 A surge rating, 125 °C max junction temperature, and verified performance in high-frequency freewheeling paths with minimal reverse recovery.

Technical Context

This discrete Schottky diode operates as a unidirectional, single-junction rectifier with guardring-enhanced overvoltage protection. Its metal–semiconductor junction enables extremely fast switching and low forward voltage drop, eliminating minority-carrier storage delay typical of PN-junction rectifiers.

Designed for operation up to 125 °C junction temperature, it sustains 25 A non-repetitive forward surge current (8.3 ms sine) and exhibits 110 pF junction capacitance at 4.0 V and 1.0 MHz - critical for high-frequency converter stability and EMI control.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - maximum repetitive reverse blocking capability; defines safe operating limit in DC/DC flyback or buck output stages
I_F(AV)	1.0 A - continuous forward current at 90 °C lead temperature; sets thermal design margin for PCB copper pad sizing
V_F @ 1.0 A	0.55 V - low conduction loss enabling >92 % efficiency in 3.3 V–5 V output converters
I_FSM	25 A - short-duration surge tolerance; supports inrush and transient load conditions without failure
C_J @ 4 V	110 pF - junction capacitance affecting high-frequency switching noise and snubber design
T_J max	125 °C - maximum allowable junction temperature; determines derating curve and thermal interface requirements

Pinout & Package

Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1A whisker resistance. Cathode indicated by color band.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Forward current entry	Connected to lower-potential side in rectification; must handle full I_F(AV) and I_FSM current density
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connected to higher-potential node; withstands up to 30 V reverse bias and defines leakage path

Key Features

Feature	Design Value
Guardring structure	Enhances edge termination robustness against voltage transients and localized field crowding
Low V_F (0.55 V @ 1 A)	Reduces power dissipation by ~40 % vs. comparable PN rectifiers, lowering thermal stress in compact layouts
Extremely fast switching	No reverse recovery time (t_rr ≈ 0 ns); eliminates switching losses and associated ringing in MHz-range converters
DO-41 mechanical standardization	Enables direct replacement in legacy through-hole designs with 0.375" (9.5 mm) lead length and 1.0" minimum lead spacing

Applications

DC/DC Buck Converter Output Rectification	Reverse Polarity Protection
Use Scenario: Used on the output stage of 5 V/1 A synchronous buck converter to rectify switched inductor current. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 0.55 V V_F minimizes conduction loss (0.55 W at 1 A), improving efficiency and reducing heatsink requirements.	Use Scenario: Placed in series with V_IN rail to block reverse connection of external power supply. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage to downstream regulators and microcontrollers. Use Value: 30 V V_RRM provides safety margin above 24 V nominal input; 25 A I_FSM handles accidental short-circuit surges.
High-Frequency Inverter Freewheeling	Low-Voltage AC Adapter Output
Use Scenario: Integrated into half-bridge inverter output to clamp inductive kickback during PWM dead-time. IC Role / Device Role / Timing Role: Clamp diode conducting only during brief non-overlap intervals; requires zero reverse recovery. Use Value: Schottky architecture ensures no minority-carrier tail current, preventing shoot-through risk and EMI spikes.	Use Scenario: Final rectification stage in 12 V AC/DC wall adapter feeding USB-C PD controller circuitry. IC Role / Device Role / Timing Role: Primary output rectifier delivering regulated DC after transformer secondary winding. Use Value: 110 pF C_J limits capacitive coupling of high-frequency switching noise into sensitive analog rails.

DC/DC Buck Converter Output Rectification

Reverse Polarity Protection

Use Scenario: Used on the output stage of 5 V/1 A synchronous buck converter to rectify switched inductor current.

IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time.

Use Value: 0.55 V V_F minimizes conduction loss (0.55 W at 1 A), improving efficiency and reducing heatsink requirements.

Use Scenario: Placed in series with V_IN rail to block reverse connection of external power supply.

IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage to downstream regulators and microcontrollers.

Use Value: 30 V V_RRM provides safety margin above 24 V nominal input; 25 A I_FSM handles accidental short-circuit surges.

High-Frequency Inverter Freewheeling

Low-Voltage AC Adapter Output

Use Scenario: Integrated into half-bridge inverter output to clamp inductive kickback during PWM dead-time.

IC Role / Device Role / Timing Role: Clamp diode conducting only during brief non-overlap intervals; requires zero reverse recovery.

Use Value: Schottky architecture ensures no minority-carrier tail current, preventing shoot-through risk and EMI spikes.

Use Scenario: Final rectification stage in 12 V AC/DC wall adapter feeding USB-C PD controller circuitry.

IC Role / Device Role / Timing Role: Primary output rectifier delivering regulated DC after transformer secondary winding.

Use Value: 110 pF C_J limits capacitive coupling of high-frequency switching noise into sensitive analog rails.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SB130-E3/54	Same DO-41 package; 30 V V_RRM, 1.0 A I_F(AV), but 0.50 V V_F @ 1 A (lower loss)	Slightly tighter V_F spec improves efficiency in thermally constrained designs	Select when <0.55 V forward drop is required and 0.05 V margin matters for thermal budget
1N5818RLG	Same electrical specs; however, lead finish is SnPb (non-RoHS) and packaging differs (ammo pack)	Not suitable for RoHS-compliant production; identical performance in prototyping	Choose only for legacy repair or non-RoHS environments where E3 suffix compliance is not mandated

Compared with SB130-E3/54 and 1N5818RLG, the 1N5818-E3/53 offers guaranteed RoHS compliance, JESD 201 Class 1A whisker resistance, and tape-and-reel delivery optimized for automated assembly - making it preferred for volume industrial and consumer electronics manufacturing.

Availability

1N5818-E3/53 is available at Aetrix Electronics and suitable for DC/DC converters, reverse polarity protection circuits, and high-frequency inverter freewheeling applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for 1N5818-E3/53 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, power efficiency, and industrial-grade qualification.

The 1N5818-E3/53 belongs to Vishay's general-purpose Schottky rectifier product line, engineered for cost-sensitive, high-volume power conversion applications demanding low V_F, fast switching, and proven DO-41 manufacturability.

FAQ

What is the maximum junction temperature rating for the 1N5818-E3/53?

The 1N5818-E3/53 has a maximum junction temperature (T_J) of +125 °C. This rating defines the upper thermal limit for reliable operation and must be respected in thermal design - including PCB copper area, ambient temperature, and airflow. Derating curves in the Vishay datasheet specify reduced I_F(AV) above 90 °C lead temperature. Exceeding 125 °C risks permanent degradation of the Schottky junction.

Does the 1N5818-E3/53 have a specified reverse recovery time (t_rr)?

No, the 1N5818-E3/53 does not specify reverse recovery time because it is a Schottky barrier diode - which operates via majority-carrier conduction and exhibits negligible stored charge. Unlike PN-junction rectifiers, it has effectively zero t_rr, eliminating switching losses and associated voltage spikes in high-frequency applications such as DC/DC converters and inverters.

What does the "E3/53" suffix mean in 1N5818-E3/53?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 1A whisker resistance. The "/53" denotes packaging in 13" diameter paper tape and reel, with a base quantity of 5,500 units - optimized for SMT placement equipment and high-volume production lines using the 1N5818-E3/53.

Can the 1N5818-E3/53 replace the 1N5817 or 1N5819 in a design?

The 1N5818-E3/53 is not a direct drop-in replacement for 1N5817 (20 V V_RRM) or 1N5819 (40 V V_RRM) due to differing reverse voltage ratings. Substitution requires verification that the 30 V V_RRM meets system-level transient and safety margins. Forward voltage and thermal characteristics are closely matched across the family, but V_RRM must be validated per application.

Is the 1N5818-E3/53 suitable for automotive applications?

The 1N5818-E3/53 is rated for -65 °C to +125 °C operating temperature and meets commercial-grade reliability standards, but it is not AEC-Q101 qualified. For automotive applications requiring qualification, Vishay offers AEC-Q101-certified alternatives such as the SB130HT3G. Use of the 1N5818-E3/53 in automotive systems requires full customer validation per functional safety and environmental stress requirements.

1N5818-E3/53 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 30 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 875 mV @ 3.1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 mA @ 30 V

Capacitance @ Vr, F:: 110pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

Operating Temperature - Junction:: -65°C ~ 125°C

1N5818-E3/53 FAQ

1.How can I place an order for 1N5818-E3/53 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5818-E3/53 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 1N5818-E3/53 reliable?

The price and inventory of 1N5818-E3/53 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5818-E3/53 is usually 5 days.

3.What payment methods are accepted for 1N5818-E3/53?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5818-E3/53 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5818-E3/53?

1N5818-E3/53 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5818-E3/53 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 1N5818-E3/53?

For technical support, including 1N5818-E3/53 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5818-E3/53 requirements.

6.How does Aetrix verify that 1N5818-E3/53 is sourced from the original manufacturer or authorized distributors?

All 1N5818-E3/53 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N5818-E3/53 meets industry standards.

7.What is the process for return or replacement of 1N5818-E3/53?

All 1N5818-E3/53 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5818-E3/53, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 1N5818-E3/53 part is unused and in its original packaging.

Return procedure for 1N5818-E3/53:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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