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

Vishay General Semiconductor - Diodes Division BYG20G-E3/TR

Name: BYG20G-E3/TR
Brand: Vishay General Semiconductor - Diodes Division
SKU: BYG20G-E3/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BYG20G-E3/TR

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: BYG20G-E3/TR.pdf

Description:: DIODE AVAL 400V 1.5A DO214AC

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Product details

Overview

BYG20G-E3/TR from Vishay General Semiconductor is an ultrafast avalanche SMD rectifier diode in SMA (DO-214AC) package, rated for 400 V repetitive peak reverse voltage (V_RRM), 1.5 A average forward current (I_F(AV)), and 75 ns reverse recovery time (t_rr). It serves as a freewheeling or high-frequency output rectifier in switch-mode power supplies and DC-DC converters.

For engineers reviewing the BYG20G-E3/TR datasheet, BYG20G-E3/TR pinout, BYG20G-E3/TR application, or BYG20G-E3/TR equivalent, key selection criteria include its soft recovery characteristics, low 1.4 V forward voltage at 1.5 A, 1.0 µA max reverse leakage at 25 °C, AEC-Q101 qualification availability, and compatibility with automated SMT placement on commercial-grade PCBs.

Technical Context

This device is a single-die, glass-passivated silicon junction diode optimized for fast switching in inductive load circuits. Its ultrafast t_rr of 75 ns and soft recovery minimize EMI generation and voltage overshoot during turn-off in buck converters and motor drive freewheel paths.

The BYG20G-E3/TR operates up to 150 °C junction temperature and delivers 20 mJ avalanche energy rating (E_R) under non-repetitive inductive switching. Thermal resistance is 25 °C/W junction-to-lead (R_θJL) and 125 °C/W junction-to-ambient on 50 mm² copper pad - critical for thermal design in compact power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports input rectification in 28 V–48 V industrial DC bus systems with 2× safety margin
I_F(AV)	1.5 A - sustains continuous conduction in mid-power SMPS outputs up to ~36 W at 24 V
t_rr	75 ns - enables operation up to ~1 MHz switching frequency without excessive switching loss
V_F @ 1.5 A	1.4 V - contributes ≤2.1 W conduction loss at full load, easing thermal management
I_R @ 25 °C	1.0 µA - ensures minimal standby leakage in battery-backed or energy-sensitive circuits
E_R	20 mJ - withstands single-pulse inductive energy during MOSFET turn-off in flyback snubbers
T_J max	150 °C - allows operation in under-hood automotive environments or sealed industrial enclosures

Pinout & Package

Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node in buck converter); must handle 30 A surge
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail; blocks 400 V reverse voltage and defines polarity in freewheel path

Key Features

Feature	Design Value
Glass passivated junction	Ensures stable long-term reliability and moisture resistance without hermetic sealing
Soft recovery characteristic	Reduces EMI and voltage ringing in high-dv/dt switching nodes, easing filter design
MSL Level 1 (260 °C peak)	Compatible with standard lead-free reflow profiles without preconditioning or baking
AEC-Q101 qualified option available	Enables drop-in use in automotive power modules where qualification is mandatory
Low profile SMA package	Enables dense layout in space-constrained AC/DC adapters and telecom power bricks

Applications

Switch-Mode Power Supply Output Rectifier	DC-DC Buck Converter Freewheel Diode
Use Scenario: High-efficiency 24 V input, 5 V/3 A output flyback or forward converter in industrial control power supply. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer secondary demagnetization phase; handles 1.5 A DC + ripple. Use Value: 75 ns t_rr and soft recovery reduce switching losses and output voltage overshoot, improving efficiency and reducing snubber component count.	Use Scenario: 12 V to 3.3 V synchronous buck regulator where high-side FET is active and low-side path requires uncontrolled conduction. IC Role / Device Role / Timing Role: Freewheeling diode providing current continuity during high-side FET off-time; conducts peak currents up to 30 A transiently. Use Value: 20 mJ avalanche energy rating safely clamps inductive kickback during FET turn-off, protecting gate drivers and enabling robust operation.
Automotive Body Control Module Power Stage	Telecom DC-DC Intermediate Bus Rectifier
Use Scenario: 12 V battery-fed power conversion for LED lighting or window lift motor control in passenger vehicles. IC Role / Device Role / Timing Role: Input rectifier or clamp diode in LDO pre-regulator stage; exposed to load dump transients. Use Value: AEC-Q101 qualified variant (BYG20GHE3) meets automotive reliability requirements; 400 V V_RRM accommodates ISO 7637-2 pulse 5a (load dump).	Use Scenario: 48 V intermediate bus rectification feeding point-of-load converters in 1U telecom servers. IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated half-bridge or full-bridge topology operating at 200–500 kHz. Use Value: Low 1.4 V V_F minimizes conduction loss at high current density; SMA package allows automated placement alongside MOSFETs on dense multilayer boards.

Switch-Mode Power Supply Output Rectifier

DC-DC Buck Converter Freewheel Diode

Use Scenario: High-efficiency 24 V input, 5 V/3 A output flyback or forward converter in industrial control power supply.

IC Role / Device Role / Timing Role: Output rectifier conducting during transformer secondary demagnetization phase; handles 1.5 A DC + ripple.

Use Value: 75 ns t_rr and soft recovery reduce switching losses and output voltage overshoot, improving efficiency and reducing snubber component count.

Use Scenario: 12 V to 3.3 V synchronous buck regulator where high-side FET is active and low-side path requires uncontrolled conduction.

IC Role / Device Role / Timing Role: Freewheeling diode providing current continuity during high-side FET off-time; conducts peak currents up to 30 A transiently.

Use Value: 20 mJ avalanche energy rating safely clamps inductive kickback during FET turn-off, protecting gate drivers and enabling robust operation.

Automotive Body Control Module Power Stage

Telecom DC-DC Intermediate Bus Rectifier

Use Scenario: 12 V battery-fed power conversion for LED lighting or window lift motor control in passenger vehicles.

IC Role / Device Role / Timing Role: Input rectifier or clamp diode in LDO pre-regulator stage; exposed to load dump transients.

Use Value: AEC-Q101 qualified variant (BYG20GHE3) meets automotive reliability requirements; 400 V V_RRM accommodates ISO 7637-2 pulse 5a (load dump).

Use Scenario: 48 V intermediate bus rectification feeding point-of-load converters in 1U telecom servers.

IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated half-bridge or full-bridge topology operating at 200–500 kHz.

Use Value: Low 1.4 V V_F minimizes conduction loss at high current density; SMA package allows automated placement alongside MOSFETs on dense multilayer boards.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06S	600 V V_RRM, 1 A I_F(AV), 65 ns t_rr, same SMA package	Higher voltage rating but lower current capability; better suited for 48 V input systems with tighter voltage margins	Select when system requires >400 V blocking but load current remains ≤1 A
ES1D-E3/54	200 V V_RRM, 1 A I_F(AV), 35 ns t_rr, same SMA package	Faster recovery but lower voltage and current ratings; optimized for <24 V output stages	Choose for higher-frequency (>1 MHz) designs where 200 V blocking suffices and minimal reverse recovery charge is critical

Compared with STTH1L06S and ES1D-E3/54, the BYG20G-E3/TR uniquely balances 400 V blocking, 1.5 A current, and 75 ns recovery for cost-sensitive 24–48 V industrial and telecom power stages - offering broader voltage margin than ES1D and higher current headroom than STTH1L06S without requiring derating.

Availability

BYG20G-E3/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, DC-DC converters, and automotive body electronics requiring stable component supply and RoHS-compliant commercial-grade sourcing.

Supply support for BYG20G-E3/TR 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 reliability, efficiency, and application-specific optimization.

The BYG20G-E3/TR belongs to Vishay's ultrafast avalanche rectifier family designed for high-frequency power conversion in industrial, automotive, and telecom infrastructure where soft recovery, low leakage, and robust surge handling are essential.

FAQ

What is the maximum junction temperature rating for BYG20G-E3/TR?

The BYG20G-E3/TR has a maximum junction temperature (T_J) rating of +150 °C, verified per Vishay's thermal characterization data. This allows reliable operation in enclosed industrial enclosures or under-hood automotive locations where ambient temperatures exceed 85 °C, provided board-level thermal design maintains R_θJA ≤ 125 °C/W on a 50 mm² copper pad. The BYG20G-E3/TR thermal performance is validated across its full operating range.

Is BYG20G-E3/TR RoHS-compliant and halogen-free?

Yes, the BYG20G-E3/TR is RoHS-compliant per EU Directive 2011/65/EU and uses halogen-free molding compound meeting IEC 61249-2-21. The "E3" suffix explicitly denotes commercial-grade, RoHS-compliant construction. It is not halogen-free by default - that designation applies only to "M3" or "HM3" variants. The BYG20G-E3/TR complies with JEDEC JESD201 class 2 whisker testing and J-STD-020 MSL level 1 reflow requirements.

Does BYG20G-E3/TR have AEC-Q101 qualification?

The BYG20G-E3/TR itself is not AEC-Q101 qualified; however, the functionally identical automotive-grade variant BYG20GHE3 is fully AEC-Q101 qualified. The "HE3" suffix indicates RoHS-compliant construction with automotive qualification, while maintaining identical electrical specs (400 V V_RRM, 75 ns t_rr, 1.5 A I_F(AV)) and SMA packaging. For automotive applications, specify BYG20GHE3 instead of BYG20G-E3/TR.

What is the reverse recovery time (t_rr) test condition for BYG20G-E3/TR?

The specified 75 ns reverse recovery time (t_rr) for BYG20G-E3/TR is measured under standardized conditions: I_F = 0.5 A forward current, I_R = 1.0 A reverse current, and I_rr = 0.25 A reverse recovery current, per JEDEC JESD282B.01. This test reflects real-world behavior in hard-switched topologies like flyback and buck converters. The BYG20G-E3/TR exhibits soft recovery, minimizing di/dt-induced voltage spikes during turn-off.

Can BYG20G-E3/TR replace BYG20D-E3/TR or BYG20J-E3/TR in a design?

No - BYG20G-E3/TR is not a direct replacement for BYG20D-E3/TR (200 V) or BYG20J-E3/TR (600 V), as V_RRM differs significantly. Substitution requires verifying voltage stress margins: using BYG20G-E3/TR in place of BYG20J-E3/TR risks breakdown under 600 V transients, while replacing BYG20D-E3/TR may over-specify voltage capability unnecessarily. The BYG20G-E3/TR is engineered specifically for 400 V-rated applications and must be selected based on actual circuit voltage requirements.

BYG20G-E3/TR Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Avalanche

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.4 V @ 1.5 A

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

Reverse Recovery Time (trr):: 75 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

Operating Temperature - Junction:: -55°C ~ 150°C

BYG20G-E3/TR FAQ

1.How can I place an order for BYG20G-E3/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for BYG20G-E3/TR 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 BYG20G-E3/TR reliable?

The price and inventory of BYG20G-E3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYG20G-E3/TR is usually 5 days.

3.What payment methods are accepted for BYG20G-E3/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYG20G-E3/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BYG20G-E3/TR?

BYG20G-E3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BYG20G-E3/TR 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 BYG20G-E3/TR?

For technical support, including BYG20G-E3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYG20G-E3/TR requirements.

6.How does Aetrix verify that BYG20G-E3/TR is sourced from the original manufacturer or authorized distributors?

All BYG20G-E3/TR 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 BYG20G-E3/TR meets industry standards.

7.What is the process for return or replacement of BYG20G-E3/TR?

All BYG20G-E3/TR units undergo pre-shipment inspection (PSI). If there is an issue with BYG20G-E3/TR, 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 BYG20G-E3/TR part is unused and in its original packaging.

Return procedure for BYG20G-E3/TR:

1.Submit a request within 90 days.

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

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