FES16DTR Equivalent & Substitute Parts

Part Overview

The FES16DTR is a general-purpose rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 16 A average rectified current in a Through Hole TO-220-2 package. This component is classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The fast recovery characteristic (≤500 ns) and 35 ns reverse recovery time position this diode for applications requiring rapid switching performance in power conversion circuits.

Substiute Parts

FES16DTR

onsemiIn Stock: 1514FES16DTR Datasheet

Current PartRFQ

FES16DT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 2298FES16DT-E3/45 Datasheet

DirectRFQ

MUR1620-BP

Micro Commercial CoIn Stock: 847MUR1620-BP Datasheet

DirectRFQ

STTH1202D

STMicroelectronicsIn Stock: 1165STTH1202D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FES16DTR is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V minimum
• Current - Average Rectified (Io): 16 A minimum
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Reverse Recovery Time (trr): 35 ns
• Mounting Type: Through Hole
• Package / Case: TO-220-2 compatible

Direct Equivalents meet all primary criteria with identical or superior electrical performance and active product status.

Similar Parts meet voltage and package requirements but have reduced current ratings (12 A vs. 16 A) or other parameter variations. These are suitable only when circuit design permits lower current specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred for FES16DTR Replacement):

FES16DT-E3/45 (Vishay General Semiconductor - Diodes Division) and MUR1620-BP (Micro Commercial Co) are direct functional equivalents. Both maintain the 16 A current rating, 200 V reverse voltage, 35 ns reverse recovery time, and TO-220-2 package compatibility. Both parts carry Active product status, ensuring long-term availability and supply chain stability. FES16DT-E3/45 is RoHS3 Compliant. MUR1620-BP exhibits superior reverse leakage performance (5 µA vs. 10 µA @ 200 V) and lower junction temperature minimum (-55°C vs. -65°C). Selection between these two direct equivalents depends on packaging preference (Tube vs. Bulk) and compliance requirements specific to the application.

Similar Part (Reduced Current Rating):

STTH1202D (STMicroelectronics) is a similar part with identical voltage, speed, and recovery time specifications but reduced to 12 A average rectified current. This part is suitable only for applications where circuit design permits operation at 12 A or lower. STTH1202D carries Active product status and RoHS3 Compliance. The maximum junction temperature specification (175°C) provides extended thermal margin compared to the FES16DTR (150°C).

Frequently Asked Questions (FAQ)

Q: Can FES16DT-E3/45 directly replace FES16DTR in all applications?

A: Yes. FES16DT-E3/45 meets or exceeds all electrical specifications of FES16DTR: identical 200 V reverse voltage, 16 A current rating, 35 ns reverse recovery time, and TO-220-2 package. Both are Through Hole mounted components with matching thermal and electrical performance. The primary difference is product status (Active vs. Obsolete), which favors FES16DT-E3/45 for new designs and ongoing production.

Q: What is the difference between FES16DT-E3/45 and MUR1620-BP?

A: Both are direct electrical equivalents with 200 V, 16 A, and 35 ns specifications. The differences are: (1) Manufacturer (Vishay vs. Micro Commercial Co), (2) Packaging (Tube vs. Bulk), (3) Reverse leakage current (10 µA vs. 5 µA @ 200 V), and (4) Minimum junction temperature (-65°C vs. -55°C). Selection depends on supply chain preference, packaging requirements, and whether the lower reverse leakage of MUR1620-BP provides circuit advantage.

Q: Can STTH1202D replace FES16DTR?

A: STTH1202D is a similar part, not a direct equivalent. It has identical voltage (200 V), speed (Fast Recovery ≤ 500 ns), and recovery time (35 ns) specifications, but the current rating is reduced to 12 A versus 16 A. STTH1202D is suitable only if circuit design permits operation at 12 A or lower. For applications requiring the full 16 A rating, FES16DT-E3/45 or MUR1620-BP must be used.

Q: Are all substitute parts RoHS compliant?

A: FES16DT-E3/45 and STTH1202D are explicitly RoHS3 Compliant. MUR1620-BP RoHS status is not specified in the provided data. All parts carry REACH Unaffected status and EAR99 export classification.

Q: What is the impact of forward voltage differences between substitute parts?

A: FES16DTR specifies 950 mV @ 8 A forward voltage. FES16DT-E3/45 and MUR1620-BP specify 975 mV @ 16 A (25 mV higher at double the test current). STTH1202D specifies 1.1 V @ 12 A (150 mV higher). These differences reflect measurement at different current levels and are within typical manufacturing tolerance for fast recovery diodes. Circuit designs must account for forward voltage drop in thermal and efficiency calculations; however, the 25 mV difference between FES16DTR and direct equivalents is generally negligible in most power conversion applications.

Q: Does package designation TO-220-2 versus TO-220AC affect mechanical compatibility?

A: TO-220-2 and TO-220AC refer to the same physical package with two leads. Both designations are compatible with standard TO-220 mounting hardware and PCB footprints. No mechanical modification is required when substituting between parts with these package designations.

Q: What is the significance of reverse recovery time (trr) for this application?

A: All substitute parts maintain the 35 ns reverse recovery time specification of FES16DTR. This parameter is critical for fast switching applications and determines the diode's ability to block reverse current rapidly. Identical trr values ensure equivalent performance in rectification, freewheeling, and clamping circuits where switching speed is performance-critical.