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Taiwan Semiconductor Corporation HER603G
- Part No.:
- HER603G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
HER603G.pdf
- Description:
- DIODE GEN PURP 200V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,242
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Product details
Overview
HER603G from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode in R-6 package, rated for 6 A average forward current, 200 V repetitive peak reverse voltage (VRRM), and 150 A surge current (IFSM). It delivers low forward voltage drop (1.0 V at 6 A, 25°C), fast reverse recovery time (50 ns), and operates up to 150°C junction temperature - used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the HER603G datasheet, HER603G pinout, HER603G application, or HER603G equivalent, key selection criteria include VRRM = 200 V, VF ≤ 1.0 V @ 6 A, trr = 50 ns, RθJA = 37°C/W, and R-6 package compatibility with through-hole PCB layouts requiring high surge robustness and thermal stability.
Technical Context
The HER603G is a single-die, standard-recovery rectifier optimized for high-frequency switching applications. Its glass-passivated junction ensures stable leakage performance (IR ≤ 10 µA @ 25°C, ≤ 200 µA @ 125°C) and long-term reliability under thermal cycling.
Designed for freewheeling and output rectification in SMPS, it supports 8.3 ms half-sine surge pulses up to 150 A and maintains low capacitance (CJ = 80 pF @ 1 MHz, 4 V) to minimize switching losses and EMI generation in converter topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF(AV) | 6 A - Continuous average forward current capability at TA = 75°C with adequate heatsinking |
| VF | 1.0 V @ 6 A, 25°C - Low conduction loss enabling high efficiency in 12–48 V output rails |
| trr | 50 ns - Fast recovery reduces switching losses and ringing in 50–500 kHz converters |
| RθJA | 37°C/W - Thermal resistance enables ~10 W dissipation in typical open-frame PCB mount without forced air |
| IFSM | 150 A @ 8.3 ms - Withstands inrush and transient surges common in industrial power supplies |
| CJ | 80 pF @ 1 MHz, 4 V - Minimizes capacitive coupling and high-frequency noise in gate-drive or feedback paths |
Pinout & Package
HER603G uses the R-6 axial-leaded package with cathode indicated by a band on the body. Leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to input/switching node side of rectifier path; must handle full load current and surge |
| Cathode (banded end) | Forward current exit / reverse voltage blocking terminal | Connected to output filter capacitor; polarity marking prevents reverse-bias failure during assembly |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable IR < 10 µA at 25°C and < 200 µA at 125°C - critical for standby power compliance |
| AEC-Q101 qualified option available (HER603GH) | Validated for automotive under-hood environments including thermal shock, humidity, and vibration stress |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets safety standards for industrial and medical-grade power supplies |
| Junction-to-ambient RθJA = 37°C/W | Allows direct PCB mounting without heatsink in 6–10 W applications - simplifies mechanical design |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–24 V at up to 6 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: VF = 1.0 V minimizes conduction loss; trr = 50 ns limits switching loss and EMI in 100–300 kHz designs. | Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or relay coils) in H-bridge inverters. IC Role / Device Role / Timing Role: Provides low-impedance return path during switch-off transitions to clamp inductive kickback. Use Value: IFSM = 150 A handles repetitive inductive energy dumps; R-6 package withstands mechanical vibration in motor drives. |
| Industrial Power Supply Input Stage | AC-DC Adapter Secondary Rectification |
Use Scenario: Bulk rectification after PFC stage in 100–500 W industrial PSUs operating at ambient up to 70°C. IC Role / Device Role / Timing Role: High-current, high-reliability rectifier handling continuous 6 A load with thermal margin. Use Value: TJ(max) = 150°C and RθJA = 37°C/W support operation without active cooling in enclosed enclosures. | Use Scenario: Output rectification in compact wall adapters (e.g., 19 V/3.42 A laptop chargers). IC Role / Device Role / Timing Role: Final-stage silicon rectifier replacing Schottky where cost and voltage rating outweigh ultra-low VF needs. Use Value: VRRM = 200 V provides 2× safety margin over 100 V RMS output; RoHS + halogen-free compliance meets global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06S | VRRM = 600 V, VF = 1.15 V @ 6 A, trr = 35 ns, TO-220AC package | Higher voltage rating and faster recovery but requires heatsink mounting and PCB footprint change | Select when >400 V blocking or sub-40 ns trr is required; not drop-in due to package and thermal interface |
| ON Semi MUR620CT | Dual common-cathode configuration, VRRM = 200 V per diode, VF = 0.95 V @ 6 A, trr = 35 ns, TO-220AB | Offers dual-diode integration for center-tapped or synchronous rectification; higher cost and larger footprint | Choose only if dual-diode topology is needed; HER603G remains optimal for single-diode, cost-sensitive, through-hole designs |
Compared with STTH6L06S and MUR620CT, HER603G provides the lowest BOM and assembly cost for single-diode, 200 V, 6 A applications using axial-leaded R-6 layout - balancing VF, trr, surge robustness, and manufacturability without heatsink dependency.
Availability
HER603G is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and freewheeling applications requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.
Supply support for HER603G 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 HER60xG series was developed to deliver high-surge, high-reliability rectification in cost-sensitive, high-volume power conversion systems - emphasizing thermal robustness, low VF, and AEC-Q101 qualification readiness.
FAQ
What is the maximum junction temperature rating for HER603G?
The HER603G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version H2104). This allows reliable operation in enclosed industrial power supplies where ambient temperatures reach 75°C, provided thermal resistance to ambient (RθJA = 37°C/W) is respected in layout. HER603G must not be operated beyond this limit to avoid permanent degradation.
Is HER603G RoHS and halogen-free compliant?
Yes, HER603G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound is UL 94V-0 rated, and terminals are pure tin-plated - meeting environmental and safety requirements for consumer, industrial, and medical-grade power products without exemption requests.
What is the reverse recovery time (trr) of HER603G and how is it measured?
The HER603G has a reverse recovery time (trr) of 50 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC test conditions. This value is specified in the Electrical Specifications table and applies across HER601G–HER605G variants. HER603G's trr enables efficient operation in 100–500 kHz switching converters while limiting voltage overshoot and EMI generation.
Does HER603G have an AEC-Q101 qualified version?
Yes, the AEC-Q101 qualified version is HER603GH - identical electrically and mechanically to HER603G but subjected to extended stress testing per AEC-Q101 Rev D, including temperature cycling, high-temperature reverse bias, and mechanical shock. HER603GH is marked with "H" suffix and is recommended for automotive cabin and engine-compartment applications where qualification is mandatory.
What is the forward voltage drop (VF) of HER603G at rated current?
The HER603G exhibits a typical forward voltage drop (VF) of 1.0 V at 6 A and 25°C junction temperature, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating. At elevated temperatures (e.g., 125°C), VF decreases slightly (~0.85 V), improving conduction efficiency in thermally demanding deployments.
HER603G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER603G FAQ
1.How can I place an order for HER603G through Aetrix?
Please submit a Request for Quotation (RFQ) for HER603G 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 HER603G reliable?
The price and inventory of HER603G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER603G is usually 5 days.
3.What payment methods are accepted for HER603G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER603G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER603G?
HER603G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER603G 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 HER603G?
For technical support, including HER603G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER603G requirements.
6.How does Aetrix verify that HER603G is sourced from the original manufacturer or authorized distributors?
All HER603G 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 HER603G meets industry standards.
7.What is the process for return or replacement of HER603G?
All HER603G units undergo pre-shipment inspection (PSI). If there is an issue with HER603G, 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 HER603G part is unused and in its original packaging.
Return procedure for HER603G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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