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Taiwan Semiconductor Corporation HER604GH
- Part No.:
- HER604GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
HER604GH.pdf
- Description:
- 50NS, 6A, 300V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,430
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Product details
Overview
HER604GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified glass-passivated silicon rectifier diode in R-6 package, rated for 300 V repetitive peak reverse voltage (VRRM), 6 A average forward current (IF), and 150 A surge current (IFSM). It delivers low forward voltage drop (VF = 1.0 V at IF = 6 A, TJ = 25°C), fast reverse recovery time (trr ≤ 50 ns), and operates up to +150°C junction temperature - used in automotive-grade DC/DC converters and switching-mode power supplies.
For engineers reviewing the HER604GH datasheet, HER604GH pinout, HER604GH application, or HER604GH equivalent, key selection criteria include its AEC-Q101 qualification, 300 V VRRM rating, 1.0 V VF at 6 A, 50 ns trr, and R-6 through-hole package compatibility with high-reliability industrial and automotive power conversion designs.
Technical Context
The HER604GH is a single-die, standard recovery rectifier optimized for high-frequency switching applications. Its glass-passivated junction ensures stable performance under thermal cycling and humidity stress, while the pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Designed for freewheeling and output rectification in SMPS, it supports 8.3 ms half-sine surge events up to 150 A and maintains <10 µA reverse leakage at 25°C and rated VR. Its 37 °C/W junction-to-ambient thermal resistance enables reliable operation without forced cooling in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 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 higher efficiency in 12–48 V output stages |
| trr | ≤50 ns - Fast recovery minimizes switching losses and EMI in 100–500 kHz converters |
| IFSM | 150 A - Withstands short-duration inrush and fault currents without failure |
| TJ max | +150°C - Enables operation in under-hood automotive environments and sealed industrial enclosures |
| RθJA | 37 °C/W - Thermal performance allows ~3.2 W dissipation at ΔT = 118°C above ambient |
Pinout & Package
HER604GH uses the R-6 axial-leaded package with cathode indicated by a band. Leads are pure tin-plated, compliant with J-STD-002 solderability and JESD201 Class 2 whisker testing. Weight ≈1.65 g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential side (e.g., switch node or transformer secondary center-tap) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or filter capacitor positive; blocks reverse voltage during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, HAST, and UHAST |
| Glass passivated junction | Eliminates moisture-induced degradation and improves long-term reliability in humid environments |
| Low VF (1.0 V @ 6 A) | Reduces conduction loss by ~15% vs. legacy rectifiers, lowering thermal load on PCB layout |
| Fast trr (≤50 ns) | Enables efficient operation in >200 kHz SMPS topologies without snubber circuits |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive DC/DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V auxiliary rail in ADAS ECUs and body control modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure functional safety compliance and sustained operation under engine-bay thermal transients. | Use Scenario: Secondary-side rectification in 300–500 W open-frame AC/DC power supplies for PLCs and HMIs. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward converter. Use Value: 50 ns trr and 1.0 V VF reduce switching losses and improve full-load efficiency by ≥0.8% over standard FRDs. |
| Telecom Rectifier Modules | Renewable Energy Inverters |
Use Scenario: Output rectification in -48 V telecom rectifier bricks operating at 250 kHz switching frequency. IC Role / Device Role / Timing Role: High-current, low-loss rectifier in dual-phase interleaved LLC resonant stage. Use Value: 37 °C/W RθJA and 6 A IF rating allow derated operation at 75°C ambient without heatsink, reducing BOM cost. | Use Scenario: DC link protection and freewheeling in string-level solar microinverters with 600 V bus. IC Role / Device Role / Timing Role: Clamping diode in bidirectional buck-boost stage handling PV array transients. Use Value: 150 A IFSM withstands lightning-induced surges per IEC 61000-4-5 Level 4, improving system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-HER104G | VRRM = 300 V, VF = 1.05 V @ 6 A, trr = 50 ns, same R-6 package but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and Vishay supply chain preference applies |
| ON Semiconductor MUR630CT | Dual common-cathode configuration, 300 V VRRM per diode, VF = 1.2 V @ 3 A per anode, TO-220AC package | Requires PCB redesign due to different footprint and thermal interface; higher VF increases conduction loss | Choose only if dual-diode topology or TO-220 thermal management is mandatory |
Compared with VS-HER104G and MUR630CT, HER604GH uniquely combines AEC-Q101 qualification, R-6 axial form factor, and 1.0 V VF at full 6 A rating - making it the preferred choice for space-constrained, thermally demanding automotive and industrial rectification where qualification and efficiency are jointly critical.
Availability
HER604GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switch-mode power supplies, and telecom rectifier modules requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for HER604GH 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 high-reliability rectifiers, TVS devices, and power MOSFETs for automotive and industrial markets.
The HER60xG series was developed to deliver AEC-Q101-qualified, high-efficiency rectification solutions for next-generation 48 V automotive systems and high-density industrial SMPS - emphasizing low VF, fast trr, and robust thermal performance in legacy-compatible packages.
FAQ
What is the maximum junction temperature rating for HER604GH?
The HER604GH has a maximum junction temperature (TJ max) of +150°C, verified per AEC-Q101 stress testing. This rating allows continuous operation in under-hood automotive environments and sealed industrial enclosures where ambient temperatures reach 105°C, provided thermal design maintains junction temperature below this limit. The HER604GH datasheet specifies derating curves confirming usable current down to 0 A at 150°C ambient with no heatsink.
Does HER604GH have AEC-Q101 qualification, and what does that cover?
Yes, HER604GH carries full AEC-Q101 qualification per Version H2104 documentation. This includes high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and mechanical shock/vibration testing. The "H" suffix in HER604GH explicitly denotes AEC-Q101 compliance - distinguishing it from non-qualified HER604G variants.
What is the forward voltage drop of HER604GH at rated current?
The HER604GH exhibits a typical forward voltage (VF) of 1.0 V at 6 A forward current and 25°C junction temperature, as measured under pulsed conditions (PW = 0.3 ms). At elevated temperatures (e.g., 125°C), VF decreases slightly to ~0.85 V, maintaining low conduction loss across its operational range.
What package type and lead finish does HER604GH use?
HER604GH is supplied in the R-6 axial-leaded package with pure tin-plated leads. This finish complies with J-STD-002 for solderability and passes JESD201 Class 2 whisker testing. The R-6 case meets UL 94V-0 flammability rating, and polarity is marked by a cathode band on the banded end.
How does HER604GH compare to HER603G and HER605G in voltage rating and recovery time?
HER604GH is rated for 300 V VRRM and has trr ≤ 50 ns. HER603G is rated for 200 V VRRM (same trr), while HER605G is rated for 400 V VRRM but shares the same ≤50 ns trr specification. All three share identical VF (1.0 V), IF (6 A), and thermal specs - making HER604GH the optimal 300 V solution where system reverse voltage margin targets 300–350 V.
HER604GH 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):
- 300 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 @ 300 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER604GH FAQ
1.How can I place an order for HER604GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER604GH 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 HER604GH reliable?
The price and inventory of HER604GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER604GH is usually 5 days.
3.What payment methods are accepted for HER604GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER604GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER604GH?
HER604GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER604GH 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 HER604GH?
For technical support, including HER604GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER604GH requirements.
6.How does Aetrix verify that HER604GH is sourced from the original manufacturer or authorized distributors?
All HER604GH 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 HER604GH meets industry standards.
7.What is the process for return or replacement of HER604GH?
All HER604GH units undergo pre-shipment inspection (PSI). If there is an issue with HER604GH, 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 HER604GH part is unused and in its original packaging.
Return procedure for HER604GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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