Taiwan Semiconductor Corporation BYG20JH
- Part No.:
- BYG20JH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BYG20JH.pdf
- Description:
- 75NS, 1.5A, 600V, HIGH EFFICIENT
- Quantity:
- Payment:

- Shipping:

Inventory:14,900
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Product details
Overview
BYG20JH from Taiwan Semiconductor is a 600V, 1.5A high-efficiency surface-mount fast recovery rectifier diode in DO-214AC (SMA) package, featuring 75 ns reverse recovery time, 30 A peak surge current, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in DC-DC converters and car lighting systems.
For engineers reviewing the BYG20JH datasheet, BYG20JH pinout, BYG20JH application, or BYG20JH equivalent, key selection criteria include repetitive peak reverse voltage (600 V), forward voltage at 1.5 A (≤1.4 V), junction temperature range (–55°C to +150°C), thermal resistance (RθJL = 25°C/W), and AEC-Q101 qualification status.
Technical Context
The BYG20JH employs a glass-passivated silicon junction and single-die construction optimized for fast switching in inductive load circuits. Its 75 ns reverse recovery time and low stored charge enable high-frequency operation in DC-DC converters and snubber networks.
Thermal performance is defined with RθJL = 25°C/W and RθJA = 100°C/W on a 5 mm × 5 mm copper pad PCB. The device supports 20 mJ non-repetitive avalanche energy (ERSM) under inductive turn-off conditions (L = 120 mH).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in high-voltage DC-DC or automotive bus applications. |
| IF | 1.5 A continuous - Rated average forward current; determines steady-state power dissipation capability at ambient temperature. |
| IFSM | 30 A (8.3 ms half-sine) - Peak surge rating; supports inrush and transient overload without failure in motor drive or lighting ballast circuits. |
| trr | 75 ns - Reverse recovery time; enables efficient high-frequency switching (>100 kHz) with reduced switching losses in SMPS. |
| TJ max | +150°C - Maximum junction temperature; allows operation in under-hood automotive environments with minimal derating. |
| RθJL | 25°C/W - Junction-to-lead thermal resistance; indicates effective heat transfer path to PCB copper when lead-mounted. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode identified by molded band. Matte tin-plated leads, J-STD-002 solderable, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential node (e.g., ground or switch node return) in freewheeling path. |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Connected to higher-potential node (e.g., inductor output or supply rail); polarity band marks this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements (HTOL, TC, HAST, etc.), enabling use in engine control and lighting modules. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance versus epoxy-passivated alternatives; critical for under-hood durability. |
| Fast recovery (75 ns) | Reduces reverse recovery loss and EMI generation in 100–500 kHz switching topologies such as buck-derived LED drivers. |
| High IFSM/IF ratio (20×) | Supports robust transient handling-e.g., lamp cold-start surges in automotive lighting-without derating or parallel devices. |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment or ADAS subsystems. IC Role / Device Role / Timing Role: Freewheeling diode providing unidirectional current path during MOSFET off-time; defines efficiency and thermal profile. Use Value: 75 ns trr and 1.4 V VF at 1.5 A minimize conduction and switching losses, improving converter efficiency >90% at 200–600 V input ranges. | Use Scenario: LED headlamp driver with PWM dimming and inductive energy recycling. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from current-regulating chokes during PWM turn-off. Use Value: 30 A IFSM and 20 mJ ERSM withstand repeated inductive transients; AEC-Q101 ensures lifetime compliance in 15-year vehicle service. |
| Snubber Network | Freewheeling Circuit |
Use Scenario: RCD snubber across MOSFETs or IGBTs in automotive HVAC blower inverters. IC Role / Device Role / Timing Role: Fast-recovery clamp diode directing stored inductive energy into RC network during switching transitions. Use Value: Low trr prevents reverse conduction overlap with main switch, reducing snubber power dissipation and thermal stress. | Use Scenario: Inductor current recirculation path in brushed DC motor controllers for power seats or windows. IC Role / Device Role / Timing Role: Unidirectional flyback path sustaining current continuity when H-bridge upper switches turn off. Use Value: 600 V VRRM accommodates battery transients up to 45 V + L·di/dt spikes; DO-214AC footprint enables automated placement in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L60S | 600 V, 1.0 A, trr = 50 ns, TO-277 package (SMD, 3-pin but single-diode) | Lower IF rating limits use in >1.0 A continuous designs; tighter trr benefits ultra-high-frequency SMPS. | Select when 50 ns trr is prioritized over current rating and TO-277 layout compatibility exists. |
| ES1J | 600 V, 1.0 A, trr = 35 ns, DO-214AC package, no AEC-Q101 qualification | Lacks automotive qualification; suitable only for industrial/commercial DC-DC where qualification is not mandated. | Choose for cost-sensitive non-automotive applications requiring faster recovery but accepting lower surge margin and no automotive validation. |
Compared with STTH1L60S and ES1J, the BYG20JH uniquely combines 1.5 A current rating, 600 V blocking, 75 ns recovery, and AEC-Q101 qualification in DO-214AC-making it the only option meeting full automotive freewheeling requirements without derating or layout change.
Availability
BYG20JH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary-side rectification, and snubber networks requiring stable component supply across production lifecycles.
Supply support for BYG20JH 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, serving automotive, industrial, and consumer markets since 1979.
The BYG20JH belongs to TSC's AEC-Q101-qualified high-voltage fast recovery rectifier family, engineered specifically for automotive power conversion and ruggedized industrial switching applications demanding reliability under thermal and surge stress.
FAQ
What is the maximum repetitive peak reverse voltage of the BYG20JH?
The BYG20JH has a maximum repetitive peak reverse voltage (VRRM) of 600 V. This rating defines its ability to block reverse voltage in high-side switching or snubber configurations without breakdown. It is validated per the manufacturer's absolute maximum ratings table and applies across the full operating junction temperature range (–55°C to +150°C). The BYG20JH maintains this rating under standard test conditions per JESD22-A114.
Is the BYG20JH qualified for automotive applications?
Yes, the BYG20JH is AEC-Q101 qualified. This qualification confirms it has passed accelerated stress tests-including high-temperature operating life, temperature cycling, and humidity testing-required for automotive electronic components. The BYG20JH is explicitly listed in TSC's A2102 revision documentation as AEC-Q101 compliant, making it suitable for under-hood and cabin applications like LED lighting and DC-DC converters.
What is the forward voltage drop of the BYG20JH at rated current?
The BYG20JH exhibits a maximum forward voltage (VF) of 1.4 V at 1.5 A and 25°C junction temperature, per the electrical specifications table. At 1.0 A, VF is ≤1.3 V. These values are measured under pulsed conditions (PW = 0.3 ms) and reflect typical conduction loss behavior in real-world switching applications where the BYG20JH operates.
What package type does the BYG20JH use, and is it compatible with automated assembly?
The BYG20JH uses the DO-214AC (SMA) surface-mount package, with matte tin-plated leads compliant with J-STD-002 solderability standards. Its standardized footprint and polarity marking (cathode band) ensure compatibility with high-speed pick-and-place equipment and reflow soldering profiles. The device is rated MSL Level 1, eliminating bake requirements prior to assembly.
How does the BYG20JH compare to the BYG20DH in terms of voltage rating and application scope?
The BYG20JH is rated for 600 V VRRM, whereas the BYG20DH is rated for 200 V. Both share identical current (1.5 A), thermal (RθJL = 25°C/W), and recovery (trr = 75 ns) characteristics, but the BYG20JH supports higher bus voltages in automotive 48 V systems or industrial 3-phase rectification. The BYG20JH replaces BYG20DH only when 600 V blocking is required-no other parameter differences affect layout or thermal design.
BYG20JH 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):
- 600 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 @ 600 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
BYG20JH FAQ
1.How can I place an order for BYG20JH through Aetrix?
Please submit a Request for Quotation (RFQ) for BYG20JH 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 BYG20JH reliable?
The price and inventory of BYG20JH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYG20JH is usually 5 days.
3.What payment methods are accepted for BYG20JH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYG20JH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYG20JH?
BYG20JH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYG20JH 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 BYG20JH?
For technical support, including BYG20JH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYG20JH requirements.
6.How does Aetrix verify that BYG20JH is sourced from the original manufacturer or authorized distributors?
All BYG20JH 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 BYG20JH meets industry standards.
7.What is the process for return or replacement of BYG20JH?
All BYG20JH units undergo pre-shipment inspection (PSI). If there is an issue with BYG20JH, 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 BYG20JH part is unused and in its original packaging.
Return procedure for BYG20JH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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