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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Vishay General Semiconductor - Diodes Division FES16CT-E3/45

Name: FES16CT-E3/45
Brand: Vishay General Semiconductor - Diodes Division
SKU: FES16CT-E3/45
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FES16CT-E3/45

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: FES16CT-E3/45.pdf

Description:: DIODE GEN PURP 150V 16A TO220AC

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Product details

Overview

FES16CT-E3/45 from Vishay General Semiconductor is an ultrafast plastic rectifier diode in TO-220AC package, rated for 150 V repetitive peak reverse voltage (V_RRM), 16 A average forward current (I_F(AV)), and 35 ns reverse recovery time (t_rr). It delivers low forward voltage drop (0.975 V at 16 A), high surge capability (250 A I_FSM), and operates up to 150 °C junction temperature-ideal for high-frequency rectification in DC/DC converters and switching-mode power supplies.

For engineers reviewing the FES16CT-E3/45 datasheet, FES16CT-E3/45 pinout, FES16CT-E3/45 application, or FES16CT-E3/45 equivalent, key selection criteria include its 150 V V_RRM, 35 ns t_rr, TO-220AC thermal resistance (1.2 °C/W), RoHS-compliant matte tin plating, and suitability for commercial-grade power conversion where fast switching and low conduction loss are critical.

Technical Context

The FES16CT-E3/45 employs a glass-passivated pellet chip junction enabling ultrafast recovery with minimal stored charge. Its single-diode configuration supports unidirectional conduction in high-frequency hard-switching topologies, with thermal performance optimized for heatsink-mounted operation via the TO-220AC case tab.

Designed for stable operation across -65 °C to +150 °C, it exhibits low leakage (10 μA at 25 °C, 500 μA at 100 °C) and predictable junction capacitance (175 pF at 4.0 V, 1 MHz), supporting consistent timing and EMI behavior in SMPS freewheeling and output rectification stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - maximum repetitive reverse blocking voltage without breakdown; sets upper limit for input/output voltage rails in DC/DC and SMPS designs
I_F(AV)	16 A at T_C = 100 °C - continuous forward current rating under heatsink-cooled conditions; defines steady-state power handling capacity
t_rr	35 ns - ultrafast reverse recovery time; minimizes switching losses and improves efficiency above 100 kHz operation
V_F	0.975 V at 16 A - low forward voltage drop reduces conduction loss and thermal stress in high-current paths
I_FSM	250 A - peak non-repetitive surge current capability; withstands inrush and transient overloads without failure
R_θJC	1.2 °C/W - thermal resistance from junction to case; enables precise heatsink sizing for thermal management

Pinout & Package

Package: TO-220AC - through-hole, single-diode configuration with isolated metal tab (pin 2) serving as cathode connection and thermal interface. Mounting torque ≤ 10 in-lbs; leads matte tin plated per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Input terminal for forward current flow; connects to positive side of AC source or switch node in bridge/freewheeling configurations
Pin 2 (Tab)	Cathode	Output terminal and electrically active thermal path; must be electrically isolated from heatsink unless circuit design requires common-cathode referencing

Key Features

Feature	Design Value
Glass-passivated junction	Enhances reliability and moisture resistance while maintaining ultrafast switching integrity under thermal cycling
Ultrafast recovery (35 ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in high-frequency converters (>100 kHz)
Low V_F (0.975 V @ 16 A)	Lowers conduction loss by ~15–20% vs. standard fast rectifiers, improving system efficiency and reducing heatsink requirements
MSL Level 1 compliance	Enables standard SMT-compatible reflow assembly without preconditioning; supports mixed-technology PCB assembly

Applications

Switch-Mode Power Supply Output Rectification	DC/DC Converter Freewheeling Diode
Use Scenario: High-efficiency 12 V to 5 V/3.3 V buck converter operating at 250 kHz in telecom power modules. IC Role / Device Role / Timing Role: Output rectifier conducting during low-side switch off-time; handles 16 A DC load with minimal voltage drop and ringing. Use Value: 35 ns t_rr and 0.975 V V_F reduce total power loss by >0.8 W vs. standard FRD alternatives, lowering thermal footprint.	Use Scenario: Isolated flyback converter in industrial PLC power supply, delivering 24 V/10 A output. IC Role / Device Role / Timing Role: Freewheeling path for transformer secondary energy transfer; clamps reverse voltage during primary switch on-time. Use Value: 150 V V_RRM provides 2× safety margin over reflected 24 V output, while 250 A I_FSM absorbs transformer leakage energy surges.
Inverter DC Bus Clamp Diode	High-Frequency AC-DC Front-End Rectification
Use Scenario: Three-phase motor drive inverter using IGBTs switching at 10 kHz, requiring snubberless DC bus protection. IC Role / Device Role / Timing Role: Clamp diode across DC link capacitors to absorb regenerative energy during braking events. Use Value: 1.2 °C/W R_θJC allows direct heatsink mounting for sustained 16 A clamping current without derating.	Use Scenario: PFC boost stage in LED driver with 50 kHz switching frequency and universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Fast recovery rectifier in boost diode position; conducts high-frequency ripple current with low Q_rr. Use Value: 175 pF junction capacitance and 35 ns t_rr minimize switching noise and EMI generation compared to slower alternatives.

Switch-Mode Power Supply Output Rectification

DC/DC Converter Freewheeling Diode

Use Scenario: High-efficiency 12 V to 5 V/3.3 V buck converter operating at 250 kHz in telecom power modules.

IC Role / Device Role / Timing Role: Output rectifier conducting during low-side switch off-time; handles 16 A DC load with minimal voltage drop and ringing.

Use Value: 35 ns t_rr and 0.975 V V_F reduce total power loss by >0.8 W vs. standard FRD alternatives, lowering thermal footprint.

Use Scenario: Isolated flyback converter in industrial PLC power supply, delivering 24 V/10 A output.

IC Role / Device Role / Timing Role: Freewheeling path for transformer secondary energy transfer; clamps reverse voltage during primary switch on-time.

Use Value: 150 V V_RRM provides 2× safety margin over reflected 24 V output, while 250 A I_FSM absorbs transformer leakage energy surges.

Inverter DC Bus Clamp Diode

High-Frequency AC-DC Front-End Rectification

Use Scenario: Three-phase motor drive inverter using IGBTs switching at 10 kHz, requiring snubberless DC bus protection.

IC Role / Device Role / Timing Role: Clamp diode across DC link capacitors to absorb regenerative energy during braking events.

Use Value: 1.2 °C/W R_θJC allows direct heatsink mounting for sustained 16 A clamping current without derating.

Use Scenario: PFC boost stage in LED driver with 50 kHz switching frequency and universal AC input (90–264 VAC).

IC Role / Device Role / Timing Role: Fast recovery rectifier in boost diode position; conducts high-frequency ripple current with low Q_rr.

Use Value: 175 pF junction capacitance and 35 ns t_rr minimize switching noise and EMI generation compared to slower alternatives.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1602CT	150 V V_RRM, 35 ns t_rr, but higher V_F (1.15 V @ 16 A); TO-220AC package with same pinout	Slightly higher conduction loss; less suitable for thermally constrained 16 A designs	Select FES16CT-E3/45 when minimizing V_F-driven heating is critical; STTH1602CT acceptable if layout allows extra thermal margin
IXYS MUR1620CT	200 V V_RRM, 35 ns t_rr, V_F = 1.1 V @ 16 A; TO-220AC, same pinout	Higher voltage rating adds cost and capacitance (190 pF); no benefit in 150 V systems	FES16CT-E3/45 preferred for 150 V-rated systems due to tighter V_F and lower C_J; MUR1620CT only if future-proofing for 200 V operation is required

Compared with STTH1602CT and IXYS MUR1620CT, the FES16CT-E3/45 offers the lowest forward voltage (0.975 V) and junction capacitance (175 pF) among 150 V ultrafast rectifiers in TO-220AC, directly improving efficiency and EMI performance in high-frequency power conversion without sacrificing surge robustness or thermal capability.

Availability

FES16CT-E3/45 is available at Aetrix Electronics and suitable for switching-mode power supplies, DC/DC converters, and motor drive inverters requiring stable component supply, RoHS-compliant manufacturing, and commercial-grade reliability with verified thermal performance.

Supply support for FES16CT-E3/45 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on power efficiency, reliability, and automotive-grade qualification.

The FES16CT-E3/45 belongs to the FES16xT ultrafast rectifier family, engineered specifically for high-frequency power conversion where low V_F, fast t_rr, and robust surge capability are essential-targeting SMPS, UPS, and industrial power systems.

FAQ

What is the maximum junction temperature rating for the FES16CT-E3/45?

The FES16CT-E3/45 has a maximum junction temperature (T_J) of +150 °C, validated across its full operating range from -65 °C to +150 °C. This rating enables reliable operation in high-ambient environments such as enclosed power supplies or motor drives. Derating curves in the Vishay datasheet (Document 88599) define safe I_F(AV) limits at elevated case temperatures, and the 1.2 °C/W R_θJC allows accurate thermal modeling when mounted to a heatsink. The FES16CT-E3/45 maintains specified electrical characteristics-including 35 ns t_rr and 0.975 V V_F-up to this thermal limit.

Is the FES16CT-E3/45 RoHS-compliant and lead-free?

Yes, the FES16CT-E3/45 is RoHS-compliant and lead-free, as indicated by the "E3" suffix per Vishay's ordering nomenclature. It uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and passes JESD 201 Class 1A whisker testing. The molding compound meets UL 94 V-0 flammability rating, and the device is categorized under Vishay's commercial-grade material compliance framework. No exemptions or lead-containing materials are used in the FES16CT-E3/45 construction.

What is the reverse recovery time (t_rr) of the FES16CT-E3/45 and how is it measured?

The FES16CT-E3/45 has a maximum reverse recovery time (t_rr) of 35 ns, measured under standardized conditions: I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per Vishay Document 88599. This value reflects the time required for the diode to transition from forward conduction to full reverse blocking, directly impacting switching losses in high-frequency circuits. The 35 ns t_rr is guaranteed across temperature and ensures predictable turn-off behavior in buck, flyback, and resonant topologies operating up to 500 kHz. The FES16CT-E3/45 achieves this via a lightly doped, glass-passivated epitaxial structure.

Can the FES16CT-E3/45 be used as a direct replacement for the FES16BT-E3/45?

No, the FES16CT-E3/45 is not a direct replacement for the FES16BT-E3/45 due to differing voltage ratings: FES16CT-E3/45 is rated for 150 V V_RRM, while FES16BT-E3/45 is rated for 100 V V_RRM. Although both share identical package (TO-220AC), pinout, thermal resistance (1.2 °C/W), and t_rr (35 ns), substituting FES16CT-E3/45 into a 100 V design introduces unnecessary cost and capacitance overhead. Conversely, replacing FES16CT-E3/45 with FES16BT-E3/45 in a 150 V application risks catastrophic failure. Always verify V_RRM margin against system peak reverse voltage before substitution.

What is the typical junction capacitance (C_J) of the FES16CT-E3/45 and why does it matter?

The FES16CT-E3/45 has a typical junction capacitance (C_J) of 175 pF, measured at 4.0 V reverse bias and 1 MHz. This parameter critically affects high-frequency switching behavior: lower C_J reduces capacitive turn-on loss, minimizes EMI generation during hard switching, and improves noise immunity in sensitive control circuits. In comparison to similar 150 V ultrafast rectifiers (e.g., STTH1602CT at 195 pF), the FES16CT-E3/45's 175 pF contributes to cleaner voltage transitions and reduced gate-drive loading in synchronous rectifier controllers. C_J remains stable across temperature and bias, supporting consistent performance in PFC and DC/DC stages.

FES16CT-E3/45 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 16A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 16 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 150 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

Operating Temperature - Junction:: -65°C ~ 150°C

FES16CT-E3/45 FAQ

1.How can I place an order for FES16CT-E3/45 through Aetrix?

Please submit a Request for Quotation (RFQ) for FES16CT-E3/45 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for FES16CT-E3/45 reliable?

The price and inventory of FES16CT-E3/45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FES16CT-E3/45 is usually 5 days.

3.What payment methods are accepted for FES16CT-E3/45?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FES16CT-E3/45 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FES16CT-E3/45?

FES16CT-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FES16CT-E3/45 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for FES16CT-E3/45?

For technical support, including FES16CT-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FES16CT-E3/45 requirements.

6.How does Aetrix verify that FES16CT-E3/45 is sourced from the original manufacturer or authorized distributors?

All FES16CT-E3/45 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FES16CT-E3/45 meets industry standards.

7.What is the process for return or replacement of FES16CT-E3/45?

All FES16CT-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with FES16CT-E3/45, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The FES16CT-E3/45 part is unused and in its original packaging.

Return procedure for FES16CT-E3/45:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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