FES16CTR Equivalent & Substitute Parts

Part Overview

The FES16CTR is a general-purpose rectifier diode manufactured by onsemi, rated for 150V DC reverse voltage and 16A average rectified current in a Through Hole TO-220-2 package. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The fast recovery characteristics (≤500ns) and 35ns reverse recovery time position this diode for applications requiring efficient switching performance in power conversion circuits.

Substiute Parts

FES16CTR

onsemiIn Stock: 999FES16CTR Datasheet

Current PartRFQ

FES16CT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 950FES16CT-E3/45 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FES16CTR is determined by strict equivalence across the following critical parameters:

Voltage Rating: The substitute must maintain 150V DC reverse voltage (Vr) maximum to ensure safe operation within the same circuit topology.

Current Rating: The substitute must support 16A average rectified current (Io) to handle identical load conditions without thermal derating.

Recovery Characteristics: The substitute must maintain fast recovery classification (≤500ns) and 35ns reverse recovery time (trr) to preserve switching efficiency and minimize switching losses.

Reverse Leakage: The substitute must not exceed 10µA reverse leakage current at 150V to maintain equivalent standby power consumption.

Mounting and Package: The substitute must be Through Hole mounted in TO-220-2 package configuration to ensure mechanical and thermal compatibility with existing PCB layouts and heatsinking arrangements.

Operating Temperature Range: The substitute must support the -65°C to 150°C junction temperature range to function across equivalent environmental conditions.

The FES16CT-E3/45 meets all these criteria and is classified as an active product, providing long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The FES16CT-E3/45 manufactured by Vishay General Semiconductor - Diodes Division is the direct equivalent substitute for the obsolete FES16CTR. This substitution is supported by complete electrical parameter equivalence across all critical specifications: voltage rating, current capacity, recovery time, leakage current, and operating temperature range.

The FES16CT-E3/45 holds active product status, ensuring continued availability and manufacturing support. The component is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for new designs and procurement. Both parts share identical base product designation (FES16), confirming manufacturer-level equivalence.

The forward voltage specification of the FES16CT-E3/45 (975mV @ 16A) is measured at full rated current, compared to the FES16CTR specification (950mV @ 8A). This represents normal variation in forward voltage measurement conditions and does not impact circuit compatibility, as both values remain within acceptable ranges for standard rectifier applications.

Packaging is supplied in tube format for the FES16CT-E3/45, which is standard for active production components and does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the FES16CT-E3/45 directly replace the FES16CTR in existing designs?

A: Yes. The FES16CT-E3/45 meets all electrical and mechanical specifications of the FES16CTR. Both components share identical voltage rating (150V), current rating (16A), recovery time (35ns), and package configuration (TO-220-2 Through Hole). Direct substitution is supported without circuit modification.

Q: Why is the forward voltage specification different between the two parts?

A: The FES16CTR forward voltage is specified at 8A, while the FES16CT-E3/45 is specified at 16A (full rated current). This represents different measurement conditions rather than a performance difference. Both values are within acceptable operating ranges for standard rectifier applications and do not affect circuit compatibility.

Q: Are there any compliance or regulatory differences between these parts?

A: The FES16CT-E3/45 is ROHS3 compliant and carries active product status, providing superior long-term supply chain stability compared to the obsolete FES16CTR. Both components are REACH unaffected and carry identical ECCN and HTSUS classifications.

Q: What is the significance of the TO-220-2 package designation?

A: The TO-220-2 package is a Through Hole configuration with two leads, designed for direct mounting to PCBs with standard 0.1-inch lead spacing. This package provides direct mechanical and thermal compatibility between the FES16CTR and FES16CT-E3/45, requiring no PCB layout modifications.

Q: Does the tube packaging of the FES16CT-E3/45 affect its performance?

A: No. Packaging format (tube versus other methods) is a supply and handling specification only. It does not affect electrical performance, thermal characteristics, or reliability of the component.

Q: What is the reverse recovery time and why is it important?

A: Reverse recovery time (trr) of 35ns is the interval required for the diode to transition from forward conduction to reverse blocking after the applied voltage reverses. Both parts maintain identical 35ns specification, ensuring equivalent switching performance and efficiency in power conversion applications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the FES16CTR and FES16CT-E3/45 support junction temperature operation from -65°C to 150°C, enabling use across identical environmental and thermal conditions.