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Taiwan Semiconductor Corporation BYG20GH
- Part No.:
- BYG20GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BYG20GH.pdf
- Description:
- 75NS, 1.5A, 400V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
BYG20GH from Taiwan Semiconductor is a 1.5A, 400V glass-passivated surface-mount rectifier in DO-214AC (SMA) package, AEC-Q101 qualified for automotive use, with 75ns reverse recovery time and 30A peak surge current capability. It serves as a fast-switching freewheeling or snubber diode in DC-DC converters and car lighting systems.
For engineers reviewing the BYG20GH datasheet, BYG20GH pinout, BYG20GH application, or BYG20GH equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward voltage at 1.5A (≤1.4V), junction temperature range (–55°C to +150°C), moisture sensitivity level (J-STD-020 Level 1), and AEC-Q101 qualification status.
Technical Context
The BYG20GH is a single-die, silicon planar epitaxial fast recovery rectifier optimized for high-efficiency switching power supplies. Its glass-passivated junction ensures stable performance under thermal cycling and humidity stress, while the DO-214AC package supports automated placement and meets UL 94V-0 flammability requirements.
With a typical reverse recovery time of 75ns and low junction-to-lead thermal resistance (25°C/W), the BYG20GH enables compact thermal design in space-constrained automotive and industrial PCBs. Its 1.5A average forward current rating and 30A non-repetitive surge capability support robust operation in inductive load switching and flyback snubber circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC output rectification and snubber networks. |
| IF | 1.5 A - Continuous forward current rating at TA = 25°C; determines steady-state power dissipation and heatsink sizing. |
| IFSM | 30 A - Peak non-repetitive surge current (8.3ms half-sine); supports inrush and fault-current handling in automotive lighting drivers. |
| trr | 75 ns - Reverse recovery time at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables high-frequency switching (>100 kHz) with low switching loss. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating at full current. |
| RθJL | 25 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to copper pads for efficient heat transfer in SMA-mounted layouts. |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| 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 or inductive load return path). |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connected to higher-potential rail; blocks up to 400V reverse voltage during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions. |
| Glass-passivated junction | Eliminates risk of junction corrosion and leakage drift in humid or chemically aggressive under-hood environments. |
| Fast recovery (75ns) | Reduces switching losses and EMI generation in 100–500 kHz DC-DC topologies compared to standard rectifiers. |
| J-STD-020 Level 1 MSL | Enables direct placement without baking or dry-pack handling-reduces manufacturing overhead and moisture-related failures. |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for automotive interior and engine compartment applications. |
Applications
| DC-DC Converter Output Rectification | Automotive LED Lighting Driver |
|---|---|
Use Scenario: High-frequency synchronous or quasi-resonant buck/boost converter supplying regulated 12V or 24V to vehicle lighting modules. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time; handles 1.5A continuous current with minimal conduction loss. Use Value: 1.4V forward drop at 1.5A and 75ns trr reduce total power loss and thermal stress versus slower 1N400x alternatives. | Use Scenario: Constant-current LED driver in headlamp or DRL modules where inductive energy must be safely recirculated during PWM dimming. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from boost inductor or gate-drive transformer leakage. Use Value: 30A IFSM withstands transient surges during cold-crank or load-dump events; AEC-Q101 ensures long-term reliability. |
| Automotive HVAC Blower Control | Industrial AC-DC Auxiliary Supply |
Use Scenario: Brushed DC motor control in climate control systems using PWM-driven H-bridge with flyback energy recovery. IC Role / Device Role / Timing Role: Freewheeling diode across motor winding; conducts reverse current during PWM off-periods. Use Value: –55°C to +150°C TJ range accommodates under-dash ambient extremes; glass passivation prevents degradation from condensation cycles. | Use Scenario: Input-stage bridge rectifier or output-stage freewheeling diode in industrial 24V auxiliary power supply feeding PLC I/O modules. IC Role / Device Role / Timing Role: Fast-recovery rectifier in flyback or forward converter secondary side; replaces slower general-purpose diodes. Use Value: 400V VRRM provides margin above 277VAC-derived rails; DO-214AC footprint enables high-density layout on DIN-rail mounted PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 1A, 600V, 50ns trr, TO-277 package | Lower current rating; smaller footprint but no AEC-Q101 qualification | Preferred for cost-sensitive industrial supplies where automotive qualification is unnecessary. |
| VS-1N5819HM3/85A | 1A, 40V, Schottky, 0.45V VF, SOD-123 | Lower VRRM and VF; unsuitable for 400V blocking or automotive under-hood temps | Only viable in low-voltage (<48V), low-temperature consumer applications-not a functional substitute for BYG20GH. |
Compared with STTH1L06S and VS-1N5819HM3/85A, the BYG20GH uniquely combines AEC-Q101 qualification, 400V blocking, 1.5A current, and 75ns recovery in a DO-214AC package-making it the only drop-in solution for automotive 12V/24V DC-DC outputs requiring production-grade reliability.
Availability
BYG20GH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter output rectification, and HVAC blower control requiring stable component supply across extended temperature and lifecycle demands.
Supply support for BYG20GH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs for automotive and industrial markets.
The BYG20GH belongs to TSC's AEC-Q101-qualified BYG20xH fast recovery rectifier family, engineered specifically for high-reliability automotive power conversion where thermal stability, surge robustness, and long-term parametric consistency are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for BYG20GH?
The BYG20GH has a VRRM of 400 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2102). This rating defines the highest reverse voltage the device can block repeatedly without breakdown and is validated across its full operating temperature range (–55°C to +150°C). The BYG20GH is part of a series where BYG20DH = 200V, BYG20GH = 400V, and BYG20JH = 600V.
Is BYG20GH qualified for automotive applications?
Yes, the BYG20GH is AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), ensuring suitability for under-hood and cabin automotive systems. The BYG20GH shares this qualification with the full BYG20xH family, and its DO-214AC package meets J-STD-020 Level 1 moisture sensitivity requirements.
What is the forward voltage (VF) of BYG20GH at rated current?
The BYG20GH exhibits a maximum forward voltage of 1.4 V at 1.5 A and 25°C junction temperature, as specified in the Electrical Specifications table. At 1.0 A, VF is ≤1.3 V. These values are measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating effects. The BYG20GH's VF remains stable across its operating temperature range due to its glass-passivated junction.
Does BYG20GH have a defined reverse recovery time (trr)?
Yes, the BYG20GH has a maximum reverse recovery time (trr) of 75 ns, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is documented in the Electrical Specifications section and confirmed in Figure 6 (Reverse Recovery Time Characteristic) of the Taiwan Semiconductor datasheet. The 75 ns trr enables efficient operation in switching frequencies up to 500 kHz.
What package type does BYG20GH use, and what are its mechanical features?
The BYG20GH uses the DO-214AC (SMA) surface-mount package. Key mechanical features include a UL 94V-0 compliant molding compound, matte tin-plated leads meeting J-STD-002 solderability, JESD 201 Class 2 whisker resistance, and polarity indicated by a cathode band. The device weighs approximately 0.064 g and is designed for automated placement per the manufacturer's mechanical data sheet (Version A2102).
BYG20GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- 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
BYG20GH FAQ
1.How can I place an order for BYG20GH through Aetrix?
Please submit a Request for Quotation (RFQ) for BYG20GH 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 BYG20GH reliable?
The price and inventory of BYG20GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYG20GH is usually 5 days.
3.What payment methods are accepted for BYG20GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYG20GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYG20GH?
BYG20GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYG20GH 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 BYG20GH?
For technical support, including BYG20GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYG20GH requirements.
6.How does Aetrix verify that BYG20GH is sourced from the original manufacturer or authorized distributors?
All BYG20GH 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 BYG20GH meets industry standards.
7.What is the process for return or replacement of BYG20GH?
All BYG20GH units undergo pre-shipment inspection (PSI). If there is an issue with BYG20GH, 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 BYG20GH part is unused and in its original packaging.
Return procedure for BYG20GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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