EK 09 Equivalent & Substitute Parts Reference

Part Overview

The EK 09 from Sanken Electric USA Inc. is a Schottky diode specified for 90 V DC reverse voltage and 700 mA average forward current in an axial through-hole package. This component is categorized under Diodes, Rectifiers, with a maximum forward voltage of 810 mV at 700 mA and a fast recovery time characteristic. The EK 09 is currently listed as obsolete, necessitating the selection of alternative or substitute parts with equivalent or better electrical and mechanical parameters for continued product support and design maintenance.

Substiute Parts

EK 09

Sanken Electric USA Inc.In Stock: 1053EK 09 Datasheet

Current PartRFQ

SB190-T

Diodes IncorporatedIn Stock: 5346SB190-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are considered based strictly on alignment with the following electrical and mechanical parameters: product category (Diodes, Rectifiers; Schottky technology), maximum DC reverse voltage, average rectified current, forward voltage at rated current, recovery speed, reverse leakage current at maximum voltage, through-hole mounting, axial or equivalent package, and compliance data. Only parts matching or exceeding the original's electrical specifications and maintaining compatible mounting and package styles are included.

Key evaluated parameters for substitution:

• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max)
• Current - Average Rectified (Io)
• Voltage - Forward (Vf) (Max) @ If
• Speed (Recovery time characteristic)
• Current - Reverse Leakage @ Vr
• Mounting Type
• Package / Case
• Operating Temperature - Junction
• RoHS and MSL Compliance

Parameter Comparison

Engineering Selection Recommendations

The EK 09 is currently obsolete while the SB190-T is active and available. Both parts are RoHS compliant with identical or superior electrical parameters, through-hole mounting, axial package compatibility, and MSL 1 (unlimited). These compliance characteristics and product status justify direct substitution within standard qualification requirements.

Frequently Asked Questions (FAQ)

Q1: What primary parameters must match when substituting Schottky diodes in the Diodes, Rectifiers category?
A1: Substitution requires matching maximum DC reverse voltage, average forward current, maximum forward voltage at rated current, recovery speed, reverse leakage current, mounting type, and package style.

Q2: Can a diode with higher current and tighter reverse leakage specifications be substituted for a lower-rated original?
A2: If the substitute provides equal or higher current handling and an equal or lower reverse leakage at the same voltage, it meets direct substitution criteria.

Q3: Are SB190-T and EK 09 mechanically compatible?
A3: Both are through-hole, axial leaded diodes suitable for standard axial mounting configurations.

Q4: How important is compliance data like RoHS and MSL in diode substitution?
A4: RoHS and MSL data ensure environmental and manufacturing compatibility; both EK 09 and SB190-T are compliant.

Q5: Does package type need to match exactly for substitution?
A5: Substitute diodes must have an equivalent axial package to ensure fit and electrical connectivity on the existing PCB footprint.