Equivalent & Substitute Parts Reference: RK 14

Part Overview

The Sanken Electric USA Inc. RK 14 is a Schottky diode rated for 40 V DC reverse voltage and 1.7A average rectified current, packaged in an axial through-hole format. The product is currently classified as obsolete, making selection of alternative models necessary for ongoing or new designs, repairs, and inventory continuity in the Diodes, Rectifiers category.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temperature - Junction	RoHS Status	Moisture Sensitivity Level (MSL)	ECCN	HTSUS	Product Status
RK 14	Sanken Electric USA Inc.	Diodes, Rectifiers	40 V	1.7A	550 mV @ 2 A	Fast Recovery =< 500ns, > 200mA (Io)	5 mA @ 40 V	Through Hole	Axial	-40°C ~ 150°C	RoHS Compliant	1 (Unlimited)	EAR99	8541.10.0080	Obsolete

Substitute Part Grouping Explanation

Substitute selection for RK 14 is determined exclusively by the following electrical, mechanical, and regulatory parameters: voltage rating (Vr), average rectified current (Io), maximum forward voltage (Vf) at specified current, speed classification, reverse leakage current at rated voltage, mounting type, package/case, operating temperature range, RoHS compliance, and moisture sensitivity level. Only parts meeting or exceeding these criteria are included as substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temperature - Junction	RoHS Status	Moisture Sensitivity Level (MSL)	ECCN	HTSUS	Product Status
RK 14	Sanken Electric USA Inc.	40 V	1.7A	550 mV @ 2 A	Fast Recovery =< 500ns, > 200mA (Io)	5 mA @ 40 V	Through Hole	Axial	-40°C ~ 150°C	RoHS Compliant	1 (Unlimited)	EAR99	8541.10.0080	Obsolete
SB240S-E3/54	Vishay General Semiconductor - Diodes Division	40 V	2A	550 mV @ 2 A	Fast Recovery =< 500ns, > 200mA (Io)	500 µA @ 40 V	Through Hole	DO-204AL, DO-41, Axial	-65°C ~ 125°C	ROHS3 Compliant	1 (Unlimited)	EAR99	8541.10.0080	Active

Engineering Selection Recommendations

Based on product status, RK 14 is obsolete and SB240S-E3/54 is active. Both parts comply with RoHS standards and have an unlimited moisture sensitivity level (MSL 1). The ECCN and HTSUS codes match, providing regulatory compatibility. The active status and compliant certifications of SB240S-E3/54 are suitable for direct substitution in applications where the obsolete RK 14 has previously been used.

Frequently Asked Questions (FAQ)

Q: What are the required parameters for substituting RK 14 in a circuit?
A: Substitution requires matching or exceeding maximum DC reverse voltage, average rectified current, forward voltage rating at specified test current, recovery speed, reverse leakage current at rated voltage, mounting type, package/case, operating temperature range, RoHS compliance, and moisture sensitivity level.

Q: How does the package/case affect substitution?
A: RK 14 and SB240S-E3/54 are both axial through-hole diodes, allowing direct mechanical compatibility for PCB mounting and replacement.

Q: Is RoHS compliance maintained when substituting SB240S-E3/54 for RK 14?
A: Both parts are RoHS compliant, maintaining regulatory adherence in RoHS-controlled environments.

Q: Does the difference in average rectified current or reverse leakage matter?
A: SB240S-E3/54 meets or exceeds the average rectified current and has lower reverse leakage at 40 V than RK 14. No parameters are exceeded in a direction that would reduce application compatibility.

Q: Are there considerations related to operating temperature range?
A: Both parts provide a wide operating temperature range suitable for general application; refer directly to the specified ranges in the comparison table.

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