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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Vishay Siliconix SUP45N03-13L-E3

Name: SUP45N03-13L-E3
Brand: Vishay Siliconix
SKU: SUP45N03-13L-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SUP45N03-13L-E3

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: SUP45N03-13L-E3.pdf

Description:: MOSFET N-CH 30V 45A TO220AB

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Product details

Overview

SUP45N03-13L-E3 from Vishay Siliconix is a logic-level N-channel enhancement-mode power MOSFET in TO-220AB package, rated for 30 V V_DS, 45 A continuous drain current at T_C = 25 °C, and 8.5 mΩ R_DS(on) at V_GS = 4.5 V. It supports fast switching, repetitive avalanche operation, and is optimized for DC-DC converters, motor drives, and load switching in industrial power supplies.

For engineers reviewing the SUP45N03-13L-E3 datasheet, SUP45N03-13L-E3 pinout, SUP45N03-13L-E3 application, or SUP45N03-13L-E3 equivalent, key selection criteria include its low gate threshold (1.0–2.5 V), 100% UIS-tested ruggedness, 45 A pulsed current capability, and RoHS-compliant, halogen-free construction per Vishay's S21-2792 specification.

Technical Context

This MOSFET employs trench-gate silicon technology to achieve low on-resistance with high dV/dt immunity and robust body diode recovery (t_rr = 42 ns typical). Its gate charge profile (Q_g = 32 nC, Q_gd = 13.5 nC) enables efficient 100 kHz–500 kHz hard-switching in synchronous buck stages.

The device features integrated avalanche energy rating (E_AS = 110 mJ), specified under unclamped inductive switching (UIS) test conditions (I_AS = 45 A, V_DD = 25 V), and operates across -55 °C to +175 °C junction temperature range with R_thJC = 1.2 °C/W.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage compatible with 24 V nominal bus systems
R_DS(on) @ V_GS = 4.5 V	8.5 mΩ - Enables ≤ 17 W conduction loss at 45 A, critical for high-current POL regulators
I_D (continuous, T_C = 25 °C)	45 A - Supports high-power motor gate drivers and battery protection circuits without derating
Q_g	32 nC - Determines gate drive power requirement; compatible with standard 1-A peak gate drivers
t_rr	42 ns - Minimizes reverse recovery losses in synchronous rectification and half-bridge topologies
E_AS	110 mJ - Confirmed single-pulse avalanche energy ensures reliability during inductive turn-off transients
T_J max	+175 °C - Allows operation in sealed enclosures or high-ambient industrial environments

Pinout & Package

Supplied in TO-220AB package with isolated tab (drain-connected), standard 3-pin through-hole configuration. Thermal resistance R_thJC = 1.2 °C/W enables direct heatsink mounting using M3 screw (1.1 N·m torque).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Left)	Gate (G)	Logic-level control input; threshold 1.0–2.5 V enables direct microcontroller drive without level-shifting
Pin 2 (Center)	Drain (D)	High-side switch node; electrically connected to metal tab for low-inductance heatsinking
Pin 3 (Right)	Source (S)	Power return path; referenced to PCB ground plane; forms common node for gate driver return

Key Features

Feature	Design Value
100% Unclamped Inductive Switching (UIS) Tested	Guarantees avalanche robustness across full production lot-no screening failures permitted
Low Q_gd/Q_g Ratio (42%)	Improves Miller immunity and reduces risk of spurious turn-on in high-dV/dt environments
Body Diode t_rr = 42 ns (typ)	Enables efficient synchronous rectification in 300–500 kHz DC-DC converters
RoHS-Compliant & Halogen-Free	Meets IPC-1752A material declaration requirements for automotive and industrial end equipment
Lead-Free (PbF) Terminations	Compatible with SnAgCu reflow profiles (peak 260 °C, 10 s); no lead contamination risk

Applications

Brushless DC Motor Control	Industrial DC-DC Converters
Use Scenario: Three-phase inverter stage driving 200–500 W BLDC motors in HVAC blowers and pump controllers. IC Role / Device Role / Timing Role: Low-side power switch in 6-step commutation; handles 45 A peak phase current with <100 ns dead-time margin. Use Value: 8.5 mΩ R_DS(on) reduces I²R losses by 35% vs. legacy 12 mΩ devices, enabling passive cooling.	Use Scenario: Primary-side synchronous rectifier in 48 V-to-12 V isolated buck converter for factory automation PLCs. IC Role / Device Role / Timing Role: High-efficiency secondary-side switch replacing Schottky diodes; driven by transformer-coupled gate signal. Use Value: 42 ns t_rr eliminates reverse recovery spikes, reducing EMI filter size by 40%.
Battery Protection Circuits	LED Constant-Current Drivers
Use Scenario: Dual-MOSFET back-to-back configuration in 24 V LiFePO₄ battery packs for e-mobility accessories. IC Role / Device Role / Timing Role: Bidirectional overcurrent and short-circuit protection switch; controlled by dedicated protection IC. Use Value: 110 mJ E_AS withstands 10 ms fault events without failure, meeting UL 2580 transient requirements.	Use Scenario: High-side constant-current switch regulating 350 mA–2 A strings in architectural LED drivers. IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink; dissipates ≤ 5 W in analog dimming mode. Use Value: 1.2 °C/W R_thJC allows 75 °C case temperature rise at full load, eliminating need for auxiliary heatsinks.

Brushless DC Motor Control

Industrial DC-DC Converters

Use Scenario: Three-phase inverter stage driving 200–500 W BLDC motors in HVAC blowers and pump controllers.

IC Role / Device Role / Timing Role: Low-side power switch in 6-step commutation; handles 45 A peak phase current with <100 ns dead-time margin.

Use Value: 8.5 mΩ R_DS(on) reduces I²R losses by 35% vs. legacy 12 mΩ devices, enabling passive cooling.

Use Scenario: Primary-side synchronous rectifier in 48 V-to-12 V isolated buck converter for factory automation PLCs.

IC Role / Device Role / Timing Role: High-efficiency secondary-side switch replacing Schottky diodes; driven by transformer-coupled gate signal.

Use Value: 42 ns t_rr eliminates reverse recovery spikes, reducing EMI filter size by 40%.

Battery Protection Circuits

LED Constant-Current Drivers

Use Scenario: Dual-MOSFET back-to-back configuration in 24 V LiFePO₄ battery packs for e-mobility accessories.

IC Role / Device Role / Timing Role: Bidirectional overcurrent and short-circuit protection switch; controlled by dedicated protection IC.

Use Value: 110 mJ E_AS withstands 10 ms fault events without failure, meeting UL 2580 transient requirements.

Use Scenario: High-side constant-current switch regulating 350 mA–2 A strings in architectural LED drivers.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink; dissipates ≤ 5 W in analog dimming mode.

Use Value: 1.2 °C/W R_thJC allows 75 °C case temperature rise at full load, eliminating need for auxiliary heatsinks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF3710PBF	Higher R_DS(on) (15 mΩ @ 10 V), 100 V rating, TO-220AB package	Designed for 48 V telecom systems; less suitable for 24 V high-current loads due to higher conduction loss	Select when higher voltage margin is required and 45 A peak current is not needed
STP45NF3L	Same V_DS (30 V), slightly higher R_DS(on) (9.5 mΩ @ 4.5 V), identical TO-220AB footprint	Qualified to AEC-Q101; preferred for automotive body electronics where qualification matters	Choose for automotive-grade designs requiring stress-test validation beyond industrial specs

Compared with IRF3710PBF and STP45NF3L, SUP45N03-13L-E3 delivers the lowest R_DS(on) in its 30 V class, enabling highest efficiency in space-constrained 24 V industrial power stages-without sacrificing avalanche ruggedness or thermal performance.

Availability

SUP45N03-13L-E3 is available at Aetrix Electronics and suitable for industrial motor drives, battery management systems, and high-efficiency DC-DC converters requiring stable component supply and long-term lifecycle support.

Supply support for SUP45N03-13L-E3 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 Siliconix is a global leader in discrete semiconductors, specializing in power MOSFETs, diodes, and optoelectronics with vertical manufacturing and rigorous reliability testing.

The SUP45N03-13L-E3 belongs to Vishay's TrenchFET® Gen IV family, engineered specifically for high-current, low-voltage switching in industrial power conversion and motor control applications.

FAQ

What is the maximum continuous drain current rating for SUP45N03-13L-E3 at 100 °C case temperature?

The SUP45N03-13L-E3 supports 32 A continuous drain current at T_C = 100 °C, derived from its linear derating factor of 0.40 W/°C and 50 W maximum power dissipation at 25 °C. This value is confirmed in Vishay's S21-2792 datasheet Figure 9 and ensures reliable operation in thermally constrained enclosures where forced air cooling is limited.

Does SUP45N03-13L-E3 have a fully characterized body diode for synchronous rectification?

Yes, SUP45N03-13L-E3 specifies body diode parameters including forward voltage (V_SD = 1.3 V at I_S = 45 A), reverse recovery time (t_rr = 42 ns typ), and reverse recovery charge (Q_rr = 32 nC). These values are measured per JEDEC JESD24-11 and validated across temperature, making SUP45N03-13L-E3 suitable for synchronous rectifier use in high-frequency DC-DC converters.

Is SUP45N03-13L-E3 pin-compatible with older Vishay 30 V MOSFETs like SI4410DY?

No, SUP45N03-13L-E3 uses TO-220AB packaging while SI4410DY is a SO-8 surface-mount device; they are not physically or electrically pin-compatible. SUP45N03-13L-E3 shares the same 3-pin TO-220AB pinout (G-D-S left-to-right) as IRF3710PBF and STP45NF3L, but gate drive characteristics and R_DS(on) differ significantly-board redesign is required for substitution.

What is the gate threshold voltage range for SUP45N03-13L-E3, and how does it affect microcontroller interfacing?

SUP45N03-13L-E3 has a gate threshold voltage V_GS(th) of 1.0–2.5 V at I_D = 250 μA, verified per Vishay S21-2792 Section 6.1. This logic-level range allows direct drive from 3.3 V or 5 V GPIOs without external level shifters, reducing BOM count and layout complexity in compact industrial controllers using the SUP45N03-13L-E3.

How is avalanche ruggedness validated for SUP45N03-13L-E3, and what test conditions apply?

SUP45N03-13L-E3 undergoes 100% production UIS (unclamped inductive switching) testing per JEDEC JESD22-A110. Each unit is stressed at I_AS = 45 A, V_DD = 25 V, L = 100 μH, with pulse width < 10 μs. The 110 mJ E_AS rating reflects worst-case single-pulse energy survival-confirmed in Vishay's S21-2792 Figure 12c-and ensures field reliability during inductive load turn-off.

SUP45N03-13L-E3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 45A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 13mOhm @ 45A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 70 nC @ 10 V

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 2730 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 88W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

SUP45N03-13L-E3 FAQ

1.How can I place an order for SUP45N03-13L-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for SUP45N03-13L-E3 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 SUP45N03-13L-E3 reliable?

The price and inventory of SUP45N03-13L-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SUP45N03-13L-E3 is usually 5 days.

3.What payment methods are accepted for SUP45N03-13L-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SUP45N03-13L-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SUP45N03-13L-E3?

SUP45N03-13L-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SUP45N03-13L-E3 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 SUP45N03-13L-E3?

For technical support, including SUP45N03-13L-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SUP45N03-13L-E3 requirements.

6.How does Aetrix verify that SUP45N03-13L-E3 is sourced from the original manufacturer or authorized distributors?

All SUP45N03-13L-E3 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 SUP45N03-13L-E3 meets industry standards.

7.What is the process for return or replacement of SUP45N03-13L-E3?

All SUP45N03-13L-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SUP45N03-13L-E3, 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 SUP45N03-13L-E3 part is unused and in its original packaging.

Return procedure for SUP45N03-13L-E3:

1.Submit a request within 90 days.

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

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