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Taiwan Semiconductor Corporation HER203G A0G
- Part No.:
- HER203G A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
HER203G A0G.pdf
- Description:
- DIODE GEN PURP 200V 2A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,528
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Product details
Overview
HER203G A0G from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode in DO-204AC (DO-15) package, rated for 200 V repetitive peak reverse voltage (VRRM), 2 A average forward current (IF), and 60 A non-repetitive surge current (IFSM), used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the HER203G A0G datasheet, HER203G A0G pinout, HER203G A0G application, or HER203G A0G equivalent, key selection factors include its 200 V VRRM rating, 1.0 V typical forward voltage at 2 A/25°C, 50 ns reverse recovery time, low junction-to-ambient thermal resistance (60 °C/W), and AEC-Q101 qualification availability in related variants.
Technical Context
This device operates as a single-die, unidirectional, fast-recovery rectifier with glass-passivated junction for enhanced reliability and moisture resistance. Its 50 ns trr and low VF support high-frequency switching topologies where conduction and switching losses must be minimized.
The DO-204AC (DO-15) package provides axial-leaded mounting with pure tin-plated leads compliant to J-STD-002, polarity indicated by cathode band, and UL 94V-0 molding compound - enabling use in automotive-grade and industrial power conversion designs requiring robust thermal and mechanical performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage before breakdown; defines safe operating range in flyback/freewheeling circuits |
| IF | 2 A - continuous average forward current at TA = 75°C; determines steady-state power handling capability |
| IFSM | 60 A - peak non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload tolerance |
| VF (typ) | 1.0 V @ 2 A, 25°C - low conduction loss improves efficiency in high-duty-cycle SMPS stages |
| trr | 50 ns - fast reverse recovery minimizes switching loss and EMI in >50 kHz converters |
| RθJA | 60 °C/W - thermal resistance enables 2 A operation with minimal heatsinking in open-frame designs |
| IR (max) | 5 µA @ 200 V, 25°C - low leakage preserves efficiency in high-impedance bias networks |
Pinout & Package
HER203G A0G uses the DO-204AC (DO-15) axial-leaded package with cathode indicated by a painted band on the body. Leads are pure tin-plated and solderable per J-STD-002; polarity is unambiguous and critical for correct orientation in series/parallel rectifier stacks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or filter capacitor; blocks reverse voltage up to 200 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Prevents moisture ingress and surface contamination, improving long-term reliability in humid or contaminated environments |
| Low VF (1.0 V typ) | Reduces conduction loss by ~15–20% vs. standard PN rectifiers at 2 A, directly lowering thermal stress |
| Fast trr (50 ns) | Enables stable operation in 100–500 kHz switching converters without snubber circuitry |
| AEC-Q101 qualified option | HER203G H variant meets automotive stress testing requirements for under-hood power modules |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated production |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12 V → 5 V/3.3 V buck-derived converters. IC Role / Device Role / Timing Role: Unidirectional power rectification with low VF and fast trr to minimize loss during high-frequency PWM cycles. Use Value: Enables >92% efficiency at full load due to 1.0 V VF and 50 ns trr, reducing heatsink size by 30% vs. legacy 1N540x diodes. | Use Scenario: Output stage freewheeling path in 24 V input solar microinverters. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during MOSFET off-time in H-bridge topology. Use Value: 60 A IFSM withstands motor startup surges; 200 V VRRM safely handles reflected voltage spikes up to 1.5× bus voltage. |
| Industrial SMPS | Automotive Power Module |
Use Scenario: Input bridge rectification in 100 W industrial AC-DC power supplies. IC Role / Device Role / Timing Role: High-current, high-reliability line-frequency rectification with thermal stability up to 150°C junction. Use Value: 60 °C/W RθJA allows 2 A operation at 75°C ambient without forced air, simplifying enclosure design. | Use Scenario: Auxiliary power supply rectification in engine control units (ECUs) with 12 V battery input. IC Role / Device Role / Timing Role: Primary rectifier in AEC-Q101-qualified 5 V/1 A isolated DC-DC module. Use Value: Glass passivation and optional AEC-Q101 qualification ensure >15-year field life under thermal cycling and vibration stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R02DJF | 200 V VRRM, 2 A IF, 1.15 V VF (max), 45 ns trr, DO-204AC package | Slightly higher VF increases conduction loss; tighter trr spec suits ultra-high-frequency designs | Prefer when trr < 45 ns is required and 0.15 V VF penalty is acceptable |
| ON Semi MUR220G | 200 V VRRM, 2 A IF, 1.1 V VF (max), 75 ns trr, DO-204AC package | Slower recovery increases switching loss above 100 kHz; higher VF reduces light-load efficiency | Prefer for cost-sensitive 50–100 kHz applications where trr margin is sufficient |
Compared with STTH2R02DJF and MUR220G, HER203G A0G delivers the lowest typical VF (1.0 V) and balanced trr (50 ns) in DO-204AC, making it optimal for 100–300 kHz industrial SMPS where conduction and switching losses must both be minimized without premium pricing.
Availability
HER203G A0G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and industrial SMPS requiring stable component supply, consistent parametric performance across production lots, and traceable sourcing for automotive-adjacent applications.
Supply support for HER203G A0G 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 diodes, and MOSFETs for industrial and automotive markets.
The HER20xG family was designed specifically for high-efficiency, high-reliability AC/DC and DC/DC power conversion, emphasizing low VF, fast trr, and rugged packaging to replace legacy general-purpose rectifiers in demanding thermal and electrical environments.
FAQ
What is the maximum junction temperature rating for HER203G A0G?
The HER203G A0G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows reliable operation in enclosed industrial power supplies where ambient temperatures reach 75°C and self-heating adds up to 75°C rise under full 2 A load. The 60 °C/W RθJA enables this rating without active cooling.
Is HER203G A0G pin-compatible with other DO-204AC rectifiers like 1N4007?
Yes, HER203G A0G uses the standard DO-204AC (DO-15) axial package with identical lead spacing, diameter, and cathode-band polarity marking as 1N4007. However, it is not a direct functional replacement due to its faster 50 ns trr and lower 1.0 V VF - requiring verification of snubber and thermal design in legacy 1N4007-based layouts.
Does HER203G A0G meet automotive qualification standards?
The base HER203G A0G variant is not AEC-Q101 qualified; however, the HER203GH A0G variant (same die, qualified screening) is available. Taiwan Semiconductor explicitly lists AEC-Q101 qualification as an option for the HER20xG family, and HER203GH meets all stress tests including temperature cycling, HTRB, and ESD per Rev G2105 datasheet.
What is the reverse leakage current specification for HER203G A0G at 125°C?
At 125°C junction temperature and rated 200 V reverse voltage, HER203G A0G exhibits a maximum reverse leakage current (IR) of 150 µA, as specified in the Electrical Specifications table. This value is critical for standby power budgeting in always-on systems, where cumulative leakage across multiple rectifiers must remain below 100 µA per rail.
How does the glass passivation in HER203G A0G improve long-term reliability?
Glass passivation in HER203G A0G forms a hermetic, chemically inert barrier over the silicon junction, preventing electrochemical migration and moisture-induced corrosion. This extends operational lifetime in humid environments (e.g., outdoor power adapters or industrial controls) and improves resistance to flux residues and cleaning solvents - validated by TSC's JEDEC JESD22-A110H testing.
HER203G A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 35pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER203G A0G FAQ
1.How can I place an order for HER203G A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for HER203G A0G 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 HER203G A0G reliable?
The price and inventory of HER203G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER203G A0G is usually 5 days.
3.What payment methods are accepted for HER203G A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER203G A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER203G A0G?
HER203G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER203G A0G 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 HER203G A0G?
For technical support, including HER203G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER203G A0G requirements.
6.How does Aetrix verify that HER203G A0G is sourced from the original manufacturer or authorized distributors?
All HER203G A0G 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 HER203G A0G meets industry standards.
7.What is the process for return or replacement of HER203G A0G?
All HER203G A0G units undergo pre-shipment inspection (PSI). If there is an issue with HER203G A0G, 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 HER203G A0G part is unused and in its original packaging.
Return procedure for HER203G A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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