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

Vishay General Semiconductor - Diodes Division FESB16CT-E3/45

Name: FESB16CT-E3/45
Brand: Vishay General Semiconductor - Diodes Division
SKU: FESB16CT-E3/45
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FESB16CT-E3/45

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: FESB16CT-E3/45.pdf

Description:: DIODE GEN PURP 150V 16A TO263AB

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Product details

Overview

FESB16CT-E3/45 from Vishay General Semiconductor is an ultrafast plastic rectifier diode in D2PAK (TO-263AB) 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 (1.30 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 power supplies.

For engineers reviewing the FESB16CT-E3/45 datasheet, FESB16CT-E3/45 pinout, FESB16CT-E3/45 application, or FESB16CT-E3/45 equivalent, key selection criteria include its 150 V V_RRM, 35 ns t_rr, D2PAK thermal resistance (1.2 °C/W), RoHS-compliant matte tin plating, and suitability for space-constrained, high-efficiency power conversion designs requiring fast switching and low conduction loss.

Technical Context

The FESB16CT-E3/45 is a single-die, single-anode ultrafast recovery rectifier with glass-passivated pellet chip junction and optimized carrier lifetime control. Its 35 ns reverse recovery time and 1.30 V forward voltage at 16 A reflect a balanced trade-off between switching speed and conduction loss for 100–500 kHz SMPS topologies.

Designed for surface-mount assembly on thermally enhanced PCBs, it leverages the D2PAK (TO-263AB) package's low thermal resistance (R_θJC = 1.2 °C/W) and meets JESD 201 Class 1A whisker testing. It is RoHS-compliant and commercial-grade (E3 suffix), not AEC-Q101 qualified-distinct from HM3-suffix variants.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - blocks up to 150 V repetitive reverse voltage without breakdown in flyback or boost stages
I_F(AV)	16 A at T_C = 100 °C - supports continuous 16 A conduction with heatsinked PCB copper area
t_rr	35 ns - enables efficient operation in 200–500 kHz switching converters with minimal switching loss
V_F	1.30 V at 16 A - reduces conduction loss vs. standard fast rectifiers, improving system efficiency
I_FSM	250 A (8.3 ms half-sine) - withstands high-energy inrush and transient surges during startup or fault
R_θJC	1.2 °C/W - allows direct thermal path from junction to heatsinked pad, critical for compact power designs
Junction temp	−65 °C to +150 °C - supports operation in industrial ambient environments without derating below 100 °C case temp

Pinout & Package

Package: D2PAK (TO-263AB), surface-mount, 3-terminal configuration with isolated tab (cathode-connected tab). Mounting requires solderable matte tin-plated terminals per J-STD-002; maximum solder dip 275 °C for 10 s.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Anode)	Anode connection	Input terminal for forward current flow; electrically isolated from tab and Pin 2
Pin 2 (Cathode)	Cathode connection	Output terminal; tied internally to metal tab for low-inductance, high-current return path
Tab (K)	Cathode thermal & electrical path	Exposed copper pad serving as cathode node and primary heat dissipation interface to PCB

Key Features

Feature	Design Value
Glass passivated junction	Ensures stable leakage current (<10 μA at 25 °C) and long-term reliability under thermal cycling
Ultrafast 35 ns t_rr	Reduces reverse recovery charge (Q_rr) and associated EMI in high-frequency hard-switched topologies
D2PAK thermal performance	1.2 °C/W R_θJC enables >12 W power dissipation with 10 cm² 2-oz copper pad, eliminating need for external heatsink
RoHS-compliant E3 suffix	Meets EU RoHS Directive 2011/65/EU; matte tin plating ensures solderability and whisker resistance (JESD 201 Class 1A)

Applications

High-Frequency DC/DC Converters	Switch-Mode Power Supplies (SMPS)
Use Scenario: Secondary-side synchronous rectification in 300–500 kHz isolated buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode replacing slower alternatives to minimize dead-time losses and improve light-load efficiency. Use Value: 35 ns t_rr and 1.30 V V_F reduce total power loss by ~18% vs. standard fast rectifiers at 12 A load, verified in 48 V–12 V step-down designs.	Use Scenario: Output rectification in 100–300 kHz AC/DC adapters and open-frame power supplies. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 16 A average current with high peak surge tolerance. Use Value: 250 A I_FSM rating ensures robustness against line transients and inrush, while D2PAK mounting simplifies thermal layout on cost-sensitive consumer PCBs.
Inverters & Motor Drives	Industrial Freewheeling Diodes
Use Scenario: Freewheeling path in 3-phase IGBT-based inverters for HVAC compressors and pump controllers. IC Role / Device Role / Timing Role: Clamp diode across inductive loads to suppress voltage spikes during IGBT turn-off. Use Value: 150 °C max junction temperature and 1.2 °C/W R_θJC allow reliable operation in sealed enclosures with limited airflow, reducing thermal margin risk.	Use Scenario: Snubber and clamp diodes in industrial PLC output modules and solenoid drivers. IC Role / Device Role / Timing Role: Fast-recovery path for inductive kickback energy, preventing MOSFET/IGBT avalanche failure. Use Value: 35 ns t_rr limits reverse recovery tail current, minimizing cross-conduction risk in half-bridge configurations with tight gate timing.

High-Frequency DC/DC Converters

Switch-Mode Power Supplies (SMPS)

Use Scenario: Secondary-side synchronous rectification in 300–500 kHz isolated buck-derived converters for telecom and server PSUs.

IC Role / Device Role / Timing Role: Ultrafast freewheeling diode replacing slower alternatives to minimize dead-time losses and improve light-load efficiency.

Use Value: 35 ns t_rr and 1.30 V V_F reduce total power loss by ~18% vs. standard fast rectifiers at 12 A load, verified in 48 V–12 V step-down designs.

Use Scenario: Output rectification in 100–300 kHz AC/DC adapters and open-frame power supplies.

IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 16 A average current with high peak surge tolerance.

Use Value: 250 A I_FSM rating ensures robustness against line transients and inrush, while D2PAK mounting simplifies thermal layout on cost-sensitive consumer PCBs.

Inverters & Motor Drives

Industrial Freewheeling Diodes

Use Scenario: Freewheeling path in 3-phase IGBT-based inverters for HVAC compressors and pump controllers.

IC Role / Device Role / Timing Role: Clamp diode across inductive loads to suppress voltage spikes during IGBT turn-off.

Use Value: 150 °C max junction temperature and 1.2 °C/W R_θJC allow reliable operation in sealed enclosures with limited airflow, reducing thermal margin risk.

Use Scenario: Snubber and clamp diodes in industrial PLC output modules and solenoid drivers.

IC Role / Device Role / Timing Role: Fast-recovery path for inductive kickback energy, preventing MOSFET/IGBT avalanche failure.

Use Value: 35 ns t_rr limits reverse recovery tail current, minimizing cross-conduction risk in half-bridge configurations with tight gate timing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay FES16CT-E3/45	TO-220AC package; higher R_θJC (1.2 °C/W same, but case-to-ambient less efficient); identical V_RRM, t_rr, V_F	Requires through-hole mounting and external heatsink; better for prototyping or lower-volume assemblies	Select when manual assembly, legacy footprint compatibility, or higher case-to-ambient thermal margin is needed
ON Semiconductor MUR1620CTG	200 V V_RRM; 60 ns t_rr; 1.25 V V_F at 16 A; TO-220AB package; no RoHS E3 suffix in base part number	Higher voltage rating suits 200 V bus systems; slower recovery increases switching loss above 250 kHz	Select only if 200 V blocking is required and operating frequency stays ≤200 kHz to avoid efficiency penalty

Compared with FES16CT-E3/45 and MUR1620CTG, the FESB16CT-E3/45 offers superior high-frequency performance (35 ns vs. 60 ns) and surface-mount scalability, while maintaining identical electrical specs to the TO-220 variant-making it optimal for automated, thermally dense, and high-efficiency power stage layouts.

Availability

FESB16CT-E3/45 is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, switch-mode power supplies, and industrial freewheeling diode applications requiring stable component supply, consistent lead-time visibility, and full traceability.

Supply support for FESB16CT-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 and reliability.

The FESB16CT-E3/45 belongs to the FESB16xT ultrafast rectifier family, engineered specifically for high-frequency, high-efficiency power conversion where low t_rr, low V_F, and robust surge capability are critical-targeting next-generation SMPS, telecom infrastructure, and industrial motor controls.

FAQ

What is the maximum junction temperature rating for the FESB16CT-E3/45?

The FESB16CT-E3/45 has a maximum junction temperature (T_J) of +150 °C, enabling operation in demanding industrial and telecom environments. This rating is validated under specified thermal conditions and must be maintained via proper PCB copper area design to keep T_J within limit during 16 A continuous conduction. Derating curves in the Vishay datasheet (Doc #88599) define safe operating area versus case temperature.

Is the FESB16CT-E3/45 AEC-Q101 qualified?

No, the FESB16CT-E3/45 is not AEC-Q101 qualified. It carries the E3 suffix, indicating RoHS-compliant commercial grade. For automotive applications, Vishay offers the HM3-suffix variant (e.g., FESB16CTHM3/I), which is explicitly AEC-Q101 qualified and undergoes additional stress testing per the standard. Always verify qualification status using the full ordering code.

What is the reverse recovery time (t_rr) of the FESB16CT-E3/45 and how is it measured?

The FESB16CT-E3/45 has a typical 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. This value is confirmed in Vishay's official datasheet (Document Number 88599, page 2) and reflects the device's ultrafast switching behavior essential for minimizing switching loss in high-frequency power circuits.

Can the FESB16CT-E3/45 replace the FES16CT-E3/45 in a design?

Yes, the FESB16CT-E3/45 can replace the FES16CT-E3/45 electrically, as both share identical V_RRM (150 V), t_rr (35 ns), V_F (1.30 V), and I_F(AV) (16 A). However, the FESB16CT-E3/45 uses D2PAK (TO-263AB) packaging versus TO-220AC, requiring PCB footprint and thermal pad redesign. No electrical revalidation is needed, but thermal and mechanical layout changes are mandatory.

What is the thermal resistance junction-to-case (R_θJC) for the FESB16CT-E3/45?

The thermal resistance junction-to-case (R_θJC) for the FESB16CT-E3/45 is 1.2 °C/W, as specified in the Vishay datasheet (Document Number 88599, page 2, Thermal Characteristics table). This value assumes proper soldering to a thermally enhanced PCB pad and is critical for calculating junction temperature rise under 16 A load conditions.

FESB16CT-E3/45 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tube

Product Status:: Obsolete

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:: 175pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

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

FESB16CT-E3/45 FAQ

1.How can I place an order for FESB16CT-E3/45 through Aetrix?

Please submit a Request for Quotation (RFQ) for FESB16CT-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 FESB16CT-E3/45 reliable?

The price and inventory of FESB16CT-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 FESB16CT-E3/45 is usually 5 days.

3.What payment methods are accepted for FESB16CT-E3/45?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FESB16CT-E3/45 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FESB16CT-E3/45?

FESB16CT-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FESB16CT-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 FESB16CT-E3/45?

For technical support, including FESB16CT-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FESB16CT-E3/45 requirements.

6.How does Aetrix verify that FESB16CT-E3/45 is sourced from the original manufacturer or authorized distributors?

All FESB16CT-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 FESB16CT-E3/45 meets industry standards.

7.What is the process for return or replacement of FESB16CT-E3/45?

All FESB16CT-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with FESB16CT-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 FESB16CT-E3/45 part is unused and in its original packaging.

Return procedure for FESB16CT-E3/45:

1.Submit a request within 90 days.

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

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