1N5818-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The 1N5818-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, designed for fast-switching applications requiring low forward voltage drop and rapid recovery characteristics. This through-hole component operates at 30 V DC reverse voltage with 1 A average rectified current capacity. The part is Active in product status and ROHS3 compliant, making it suitable for modern electronic applications. Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate different packaging or manufacturer preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

1N5818-TP

Micro Commercial CoIn Stock: 27921N5818-TP Datasheet

Current PartRFQ

1N5818-T

Diodes IncorporatedIn Stock: 101951N5818-T Datasheet

SimilarRFQ

1N5818G

onsemiIn Stock: 198091N5818G Datasheet

SimilarRFQ

1N5818RLG

onsemiIn Stock: 393721N5818RLG Datasheet

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SB130-T

Diodes IncorporatedIn Stock: 5835SB130-T Datasheet

SimilarRFQ

1N5818

Microchip TechnologyIn Stock: 203241N5818 Datasheet

Parametric EquivalentRFQ

1N5818_R2_00001

Panjit International Inc.In Stock: 46861N5818_R2_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N5818-TP are grouped based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 550 mV @ 1 A (or lower)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, or Axial
• Technology: Schottky
• RoHS Status: ROHS3 Compliant

Direct Substitutes maintain identical electrical specifications and packaging format (DO-41 Cut Tape). These include 1N5818-T (Diodes Incorporated) and 1N5818_R2_00001 (Panjit International Inc.).

Functional Equivalents meet all electrical requirements but differ in packaging format (Axial Bulk or Cut Tape) or minor parameter variations. These include 1N5818G and 1N5818RLG (both onsemi).

Parametric Equivalents satisfy core electrical specifications with acceptable variations in reverse leakage current or operating temperature range. The SB130-T (Diodes Incorporated) exhibits lower forward voltage (500 mV vs. 550 mV) and reduced reverse leakage (500 µA vs. 1 mA), making it suitable for applications where these characteristics provide performance benefits. The 1N5818 (Microchip Technology) extends the upper operating temperature to 150°C.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Identical Electrical and Mechanical Specifications):

The 1N5818-T (Diodes Incorporated) is a direct substitute for the 1N5818-TP. Both components share identical electrical parameters, DO-41 packaging, and ROHS3 compliance. The 1N5818-T offers extended lower operating temperature range (-65°C vs. -55°C) and higher inventory availability (10,100 pcs). This part is suitable for applications requiring no design modification.

The 1N5818_R2_00001 (Panjit International Inc.) is electrically equivalent with identical forward voltage and package format. It exhibits lower reverse leakage current (200 µA vs. 1 mA), which may provide performance benefits in low-leakage applications. ROHS3 compliance and MSL rating (1 - Unlimited) are maintained.

Functional Equivalents (Axial Package Format):

The 1N5818G and 1N5818RLG (both onsemi) are functionally equivalent but supplied in Axial package format rather than DO-41. Both maintain identical electrical specifications and ROHS3 compliance. The 1N5818RLG offers significantly higher inventory (39,320 pcs) and is supplied in Cut Tape packaging. These parts are suitable for applications where Axial lead configuration is acceptable or preferred.

Parametric Equivalent with Performance Enhancements:

The SB130-T (Diodes Incorporated) meets all core electrical requirements with improved forward voltage characteristics (500 mV vs. 550 mV at 1 A) and reduced reverse leakage (500 µA vs. 1 mA). This part is suitable for applications where lower forward voltage drop reduces power dissipation or where lower leakage current is beneficial. ROHS3 compliance and MSL rating (1 - Unlimited) are maintained.

Extended Temperature Range:

The 1N5818 (Microchip Technology) extends the upper operating temperature to 150°C (vs. 125°C), providing thermal margin for high-temperature environments. Electrical specifications and DO-41 packaging remain identical to the main part. This variant is suitable for applications requiring extended thermal operating range.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original 1N5818-TP specification.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 1N5818-TP with the 1N5818-T without circuit modification?

A: Yes. The 1N5818-T is a direct substitute with identical electrical specifications (30 V, 1 A, 550 mV forward voltage) and DO-41 package format. No circuit modification is required. The extended lower operating temperature range (-65°C vs. -55°C) provides additional thermal margin.

Q: What is the difference between the 1N5818G and 1N5818RLG?

A: Both parts are electrically identical with 30 V, 1 A, and 550 mV forward voltage specifications. The primary difference is packaging: 1N5818G is supplied in Bulk format, while 1N5818RLG is supplied in Cut Tape (CT). Both use Axial lead configuration rather than DO-41. The 1N5818RLG offers higher inventory availability (39,320 pcs).

Q: Can I use the SB130-T as a substitute for the 1N5818-TP?

A: Yes. The SB130-T meets all core electrical requirements (30 V, 1 A, Fast Recovery) and is supplied in DO-41 package format. It offers improved forward voltage (500 mV vs. 550 mV) and lower reverse leakage (500 µA vs. 1 mA). These characteristics reduce power dissipation and leakage current, making it suitable for applications where these performance enhancements are beneficial.

Q: What is the difference between DO-41 and Axial package formats?

A: Both are through-hole packages for the 1N5818 Schottky diode. DO-41 is a standardized package designation (DO-204AL). Axial refers to the lead configuration where leads extend axially from the component body. Electrical performance is identical; the choice depends on PCB layout and assembly requirements.

Q: Does the 1N5818 from Microchip Technology have different electrical specifications?

A: No. The Microchip 1N5818 maintains identical electrical specifications (30 V, 1 A, 550 mV forward voltage, 1 mA reverse leakage) and DO-41 packaging. The primary difference is the extended upper operating temperature range (-55°C to 150°C vs. -55°C to 125°C), providing thermal margin for high-temperature applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory alignment with the original 1N5818-TP specification and modern environmental standards.

Q: What does MSL (Moisture Sensitivity Level) indicate?

A: MSL indicates the component's sensitivity to moisture during storage and handling. The 1N5818-TP has MSL Not Applicable, indicating no moisture sensitivity. Substitute parts with MSL 1 (Unlimited) have minimal moisture sensitivity and require standard handling practices. This does not affect electrical performance or substitution suitability.

Q: Can I use the 1N5818_R2_00001 in place of the 1N5818-TP?

A: Yes. The 1N5818_R2_00001 is electrically equivalent with identical forward voltage (550 mV) and DO-41 packaging. It exhibits lower reverse leakage current (200 µA vs. 1 mA), which may provide performance benefits in low-leakage applications. ROHS3 compliance is maintained.