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

Vishay General Semiconductor - Diodes Division BYG20GHE3_A/H

Name: BYG20GHE3_A/H
Brand: Vishay General Semiconductor - Diodes Division
SKU: BYG20GHE3_A/H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BYG20GHE3_A/H

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: BYG20GHE3_A/H.pdf

Description:: DIODE AVAL 400V 1.5A DO214AC

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Product details

Overview

BYG20GHE3_A/H 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 automotive DC/DC converters and telecom power supplies.

For engineers reviewing the BYG20GHE3_A/H datasheet, BYG20GHE3_A/H pinout, BYG20GHE3_A/H application, or BYG20GHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, soft recovery characteristics, low 1.4 V forward voltage at 1.5 A, 20 mJ avalanche energy rating, and MSL Level 1 moisture sensitivity.

Technical Context

This device is a single-die, planar-passivated silicon junction diode optimized for fast switching with controlled soft recovery to minimize EMI in high-frequency power conversion. Its glass-passivated pellet chip junction ensures stable leakage performance up to 100 °C (I_R = 10 µA).

The BYG20GHE3_A/H operates with a maximum junction temperature of 150 °C and exhibits a typical thermal resistance of 25 °C/W (junction-to-lead) and 100–150 °C/W (junction-to-ambient), depending on PCB copper area. It is rated for 30 A non-repetitive surge current (I_FSM) under 10 ms half-sine conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse blocking voltage; defines safe operating range in boost/flyback clamp circuits.
I_F(AV)	1.5 A - Continuous DC forward current rating at 75 °C case temperature; determines heatsink-free operation limit.
t_rr	75 ns - Measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >100 kHz switching in SMPS without excessive switching loss.
V_F @ 1.5 A	1.4 V - Forward voltage drop at rated average current; directly impacts conduction loss and thermal design.
I_R @ 25 °C	1.0 µA - Maximum DC reverse leakage at full V_RRM; critical for low-power standby and high-impedance sensing nodes.
E_R	20 mJ - Avalanche energy rating with I_(BR)R = 1 A; supports inductive load switching without failure in freewheeling applications.
T_J max.	150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments.

Pinout & Package

Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit (e.g., switch node in buck converter); must handle 30 A surge transients.
Cathode	Forward current exit / reverse blocking terminal	Connected to higher-potential rail (e.g., output capacitor positive); marked by color band; carries full load current and blocks 400 V.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for under-hood and ADAS power modules.
Soft recovery characteristics	Controlled reverse recovery waveform minimizes voltage overshoot and EMI generation during turn-off in high-dV/dt environments.
Glass passivated pellet chip junction	Hermetic protection against humidity and contamination; ensures long-term I_R stability and prevents parameter drift over life.
MSL Level 1 (260 °C peak)	Compatible with standard lead-free reflow profiles without baking; eliminates pre-conditioning overhead in high-volume SMT lines.
Low profile SMA package	Height ≤ 2.29 mm enables use in space-constrained modules such as PoL converters and LED drivers.

Applications

Automotive DC/DC Converters	Telecom AC/DC Front-Ends
Use Scenario: Step-down conversion from 12 V or 48 V battery to 3.3 V/5 V rails in infotainment and gateway ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology; handles reverse recovery during high-side FET turn-on. Use Value: 75 ns t_rr and soft recovery reduce switching node ringing and EMI filter size; AEC-Q101 qualification ensures field reliability.	Use Scenario: Output rectification in 50–100 W telecom AC/DC adapters with active PFC and LLC stages. IC Role / Device Role / Timing Role: Secondary-side ultrafast rectifier replacing Schottky diodes where higher V_RRM and avalanche ruggedness are needed. Use Value: 400 V V_RRM supports wide input range designs; 20 mJ E_R withstands inductive kickback from transformer leakage in flyback topologies.
Industrial Motor Drive Inverters	Consumer Power Adapters
Use Scenario: Bootstrap supply clamping and auxiliary rail rectification in 3-phase IGBT gate driver power stages. IC Role / Device Role / Timing Role: Clamping diode in high-side bootstrap circuit; conducts only during low-side FET conduction phase. Use Value: Low 1.4 V V_F minimizes bootstrap capacitor discharge loss; 150 °C T_J max supports operation near heat-generating IGBTs.	Use Scenario: Output rectification in compact USB-C PD adapters with multi-output flyback or QR controllers. IC Role / Device Role / Timing Role: High-efficiency secondary-side rectifier operating at 65–130 kHz switching frequencies. Use Value: SMA package enables automated placement; soft recovery reduces need for snubbers, lowering BOM count and cost.

Automotive DC/DC Converters

Telecom AC/DC Front-Ends

Use Scenario: Step-down conversion from 12 V or 48 V battery to 3.3 V/5 V rails in infotainment and gateway ECUs.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology; handles reverse recovery during high-side FET turn-on.

Use Value: 75 ns t_rr and soft recovery reduce switching node ringing and EMI filter size; AEC-Q101 qualification ensures field reliability.

Use Scenario: Output rectification in 50–100 W telecom AC/DC adapters with active PFC and LLC stages.

IC Role / Device Role / Timing Role: Secondary-side ultrafast rectifier replacing Schottky diodes where higher V_RRM and avalanche ruggedness are needed.

Use Value: 400 V V_RRM supports wide input range designs; 20 mJ E_R withstands inductive kickback from transformer leakage in flyback topologies.

Industrial Motor Drive Inverters

Consumer Power Adapters

Use Scenario: Bootstrap supply clamping and auxiliary rail rectification in 3-phase IGBT gate driver power stages.

IC Role / Device Role / Timing Role: Clamping diode in high-side bootstrap circuit; conducts only during low-side FET conduction phase.

Use Value: Low 1.4 V V_F minimizes bootstrap capacitor discharge loss; 150 °C T_J max supports operation near heat-generating IGBTs.

Use Scenario: Output rectification in compact USB-C PD adapters with multi-output flyback or QR controllers.

IC Role / Device Role / Timing Role: High-efficiency secondary-side rectifier operating at 65–130 kHz switching frequencies.

Use Value: SMA package enables automated placement; soft recovery reduces need for snubbers, lowering BOM count and cost.

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, 1.0 A I_F(AV), 60 ns t_rr, TO-277 package	Higher voltage rating but lower current; requires different footprint and thermal pad layout	Select when 600 V blocking is mandatory and board space allows larger TO-277 outline.
ES1J-M3/84A	600 V V_RRM, 1.0 A I_F(AV), 35 ns t_rr, SMA package, no AEC-Q101	Same footprint but not automotive-qualified; lower t_rr trades off softness and avalanche capability	Use in cost-sensitive consumer adapters where AEC-Q101 is unnecessary and faster t_rr is prioritized over ruggedness.

Compared with STTH1L06S and ES1J-M3/84A, the BYG20GHE3_A/H uniquely balances 400 V rating, 1.5 A current, AEC-Q101 compliance, and soft recovery in the industry-standard SMA package-making it optimal for automotive and industrial SMPS where reliability and EMI control are co-prioritized.

Availability

BYG20GHE3_A/H is available at Aetrix Electronics and suitable for automotive power modules, telecom AC/DC front-ends, and industrial motor drive inverters requiring stable component supply and long-term lifecycle support.

Supply support for BYG20GHE3_A/H 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, ruggedness, and application-specific optimization.

The BYG20GHE3_A/H belongs to Vishay's ultrafast avalanche rectifier product line, engineered for high-frequency power conversion in harsh environments-including automotive under-hood, industrial automation, and telecom infrastructure-where soft recovery, avalanche energy handling, and AEC-Q101 validation are essential.

FAQ

What is the maximum junction temperature rating for BYG20GHE3_A/H?

The BYG20GHE3_A/H has a maximum junction temperature (T_J) of 150 °C, verified per JEDEC standards. This rating allows continuous operation in high-ambient environments such as automotive engine compartments or enclosed industrial enclosures. Derating curves in the Vishay datasheet (Document #88958) define safe I_F(AV) limits above 75 °C case temperature. Thermal design must account for R_θJA values ranging from 100 to 150 °C/W depending on PCB copper area.

Is BYG20GHE3_A/H pin-compatible with BYG20DHE3_A/H or BYG20JHE3_A/H?

Yes-BYG20GHE3_A/H shares identical SMA (DO-214AC) package dimensions, pinout, and polarity marking (cathode band) with BYG20DHE3_A/H and BYG20JHE3_A/H. The only functional difference is V_RRM: 200 V (D), 400 V (G), and 600 V (J). All three variants have identical I_F(AV), t_rr, V_F, and thermal characteristics, enabling direct substitution when voltage rating permits.

Does BYG20GHE3_A/H meet automotive qualification requirements?

Yes-BYG20GHE3_A/H is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (Rev. 21-Feb-2020, Doc. #88958) and ordering code suffix "HE3". This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114. It is approved for use in automotive powertrain, body electronics, and ADAS subsystems where reliability under thermal and electrical stress is critical.

What does the "_A/H" suffix mean in BYG20GHE3_A/H?

The "_A/H" suffix in BYG20GHE3_A/H indicates two attributes: "A" is the revision code per Vishay's internal documentation control, and "H" denotes the preferred packaging code for 7-inch diameter plastic tape-and-reel delivery with 1800 units per reel. This matches the ordering information table in Document #88958 and confirms compatibility with standard SMT pick-and-place feeders.

How does the soft recovery characteristic of BYG20GHE3_A/H improve system-level EMI performance?

The soft recovery behavior of BYG20GHE3_A/H produces a gradual, low-dV/dt reverse current decay during turn-off-reducing high-frequency ringing and voltage overshoot at switching nodes. In practice, this lowers conducted and radiated EMI, allowing smaller or fewer EMI filters in DC/DC converters. Unlike hard-recovery diodes, it avoids abrupt current collapse that excites parasitic LC resonances in PCB traces and transformer windings-directly improving EMC test margins in automotive and telecom applications.

BYG20GHE3_A/H 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:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

BYG20GHE3_A/H FAQ

1.How can I place an order for BYG20GHE3_A/H through Aetrix?

Please submit a Request for Quotation (RFQ) for BYG20GHE3_A/H 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 BYG20GHE3_A/H reliable?

The price and inventory of BYG20GHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYG20GHE3_A/H is usually 5 days.

3.What payment methods are accepted for BYG20GHE3_A/H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYG20GHE3_A/H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BYG20GHE3_A/H?

BYG20GHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BYG20GHE3_A/H 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 BYG20GHE3_A/H?

For technical support, including BYG20GHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYG20GHE3_A/H requirements.

6.How does Aetrix verify that BYG20GHE3_A/H is sourced from the original manufacturer or authorized distributors?

All BYG20GHE3_A/H 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 BYG20GHE3_A/H meets industry standards.

7.What is the process for return or replacement of BYG20GHE3_A/H?

All BYG20GHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with BYG20GHE3_A/H, 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 BYG20GHE3_A/H part is unused and in its original packaging.

Return procedure for BYG20GHE3_A/H:

1.Submit a request within 90 days.

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

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