My Inquiry
My Account
Diodes Incorporated HER603-T
- Part No.:
- HER603-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
HER603-T.pdf
- Description:
- DIODE GEN PURP 200V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HER603-T from Diodes Incorporated is a 6.0A, 200V high-efficiency axial-lead rectifier diode optimized for AC/DC input stage rectification in offline power supplies and industrial SMPS. It delivers 1.2V forward voltage at 6.0A DC, 250A surge capability (8.3ms), and 60ns reverse recovery time, enabling compact, thermally robust designs in open-frame adapters and motor drive front-ends.
For engineers reviewing the HER603-T datasheet, HER603-T pinout, HER603-T application, or HER603-T equivalent, key selection criteria include its 200V VRRM rating, 6.0A average forward current with derating above 55°C, low 10µA reverse leakage at 25°C, and UL 94V-0 molded plastic case for safety-critical mains-connected equipment.
Technical Context
This device is a silicon planar epitaxial high-efficiency rectifier designed for single-phase, half-wave 60Hz operation with resistive or inductive loads. Its 60ns reverse recovery time (measured at IF=0.5A, IR=1.0A, IRR=0.25A) supports moderate-frequency switching in PFC pre-regulators and auxiliary supplies.
The R-6 package features axial leads solderable per MIL-STD-202 Method 208, with a 9.5mm lead length specified for thermal testing. Junction-to-ambient thermal resistance is 100°C/W under standard PCB mounting (25mm² copper area), and operating temperature spans –65°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive peak reverse voltage; defines safe AC input voltage handling (e.g., 141V RMS sine wave). |
| I(AV) | 6.0 A - Average forward rectified current at 25°C ambient; derates to zero at ~125°C per Fig. 1. |
| VF | 1.2 V @ 6.0A - Forward voltage drop determines conduction loss (7.2W max at full load) and heatsink sizing. |
| IFSM | 250 A - Non-repetitive surge current capacity; withstands inrush into capacitive inputs without failure. |
| TRR | 60 ns - Reverse recovery time; limits switching frequency suitability and EMI generation in flyback snubbers. |
| IR | 10 µA @ 25°C - Low reverse leakage preserves efficiency in high-impedance bias networks and standby circuits. |
Pinout & Package
R-6 molded plastic package with axial leads; cathode indicated by color band; approx. weight 1.7 g; mountable in any orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | AC input / positive-side connection | Accepts incoming AC phase; must handle full surge current and thermal stress during conduction. |
| Cathode (banded end) | DC output / negative-side connection | Delivers rectified output; polarity marking ensures correct orientation in bridge or single-diode configurations. |
Key Features
| Feature | Design Value |
|---|---|
| High surge current capability | 250A IFSM enables reliable startup into bulk capacitor loads without degradation. |
| Low forward voltage drop | 1.2V VF at 6A reduces conduction losses by ~15% vs. standard 1N5408 (1.4V), improving thermal margin. |
| Fast reverse recovery | 60ns TRR minimizes switching loss and ringing in quasi-resonant converters operating up to ~100kHz. |
| UL 94V-0 flammability rating | Self-extinguishing plastic case meets safety standards for Class II insulated AC/DC adapters and industrial controls. |
Applications
| AC/DC Adapter Input Rectification | Industrial Motor Drive Front-End |
|---|---|
Use Scenario: 100–240V AC input rectification in 30–65W open-frame switch-mode power supplies. IC Role / Device Role / Timing Role: Primary rectifier converting AC line to unregulated DC bus; operates at 50/60Hz with minimal conduction loss. Use Value: 6.0A I(AV) and 200V VRRM support universal input range; 1.2V VF lowers heatsink requirements versus legacy 1N54xx series. | Use Scenario: Input rectification for 3-phase inverter auxiliary power supply feeding gate drivers and control logic. IC Role / Device Role / Timing Role: Half-wave rectifier in isolated auxiliary winding circuit; handles intermittent surges during motor startup. Use Value: 250A IFSM withstands repeated inrush events; –65°C to +150°C TJ range ensures reliability in cabinet-mounted drives. |
| LED Driver Bulk Capacitor Charging | UPS Battery Charger Input Stage |
Use Scenario: Charging bulk electrolytic capacitors in constant-current LED drivers with TRIAC-dimmable input stages. IC Role / Device Role / Timing Role: Rectifies phase-cut AC waveform; conducts only during positive half-cycles after dimmer conduction. Use Value: 60ns TRR prevents false triggering of downstream MOSFETs due to slow turn-off; low IR avoids standby power waste. | Use Scenario: Input rectification in online UPS battery charging circuits operating continuously under utility power. IC Role / Device Role / Timing Role: High-reliability rectifier in dual-path charger topology; exposed to sustained 60Hz line stress and occasional surges. Use Value: UL 94V-0 case and 150µA IR at 55°C TC ensure long-term insulation integrity and low no-load loss over 10+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HER603G from ON Semiconductor | Identical VRRM (200V), I(AV) (6A), and VF (1.2V); same R-6 package but RoHS-compliant matte tin plating. | No functional difference; qualified for automotive-grade reflow profiles where HER603-T uses traditional SnPb finish. | Select HER603G for lead-free assembly; verify solder paste compatibility with matte tin terminations. |
| GBU6K from Vishay | Higher VRRM (600V), same I(AV) (6A), but slower TRR (250ns) and higher VF (1.55V); GBU package (4-pin bridge) vs. single-diode R-6. | Used in full-wave bridge configurations requiring higher voltage margin; not a direct replacement due to topology and pinout mismatch. | Choose only when 600V blocking or integrated bridge functionality is required; not suitable for single-diode footprint replacement. |
Compared with HER603G, HER603-T offers identical electrical performance with legacy SnPb termination for wave-solder processes; versus GBU6K, it trades voltage headroom and bridge integration for lower conduction loss and simpler layout in half-wave topologies.
Availability
HER603-T is available at Aetrix Electronics and suitable for AC/DC adapter design, industrial motor drive auxiliary supplies, LED driver bulk charging, and UPS battery charger input stages requiring stable component supply and long-lifecycle support.
Supply support for HER603-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.
The HER60x series belongs to Diodes' high-efficiency rectifier product line, engineered specifically for cost-sensitive, thermally constrained AC/DC front-end applications demanding low VF, fast recovery, and safety-certified packaging.
FAQ
What is the maximum junction temperature for HER603-T?
The HER603-T has a specified operating junction temperature range of –65°C to +150°C. This allows use in high-ambient environments such as enclosed industrial enclosures or near heat-generating components. Derating begins at 55°C case temperature, where full 6.0A current is no longer guaranteed per Fig. 1.
Can HER603-T replace HER602-T in a 100V-rated design?
No - HER603-T has a 200V VRRM rating versus HER602-T's 100V. Substituting it into a 100V design introduces unnecessary cost and potential reliability risk from over-specification, unless the system requires future voltage scalability or enhanced surge margin beyond original requirements.
Is HER603-T suitable for high-frequency switching applications like LLC resonant converters?
HER603-T is not recommended for primary-side rectification in high-frequency resonant converters (>100kHz). Its 60ns TRR is adequate for 50/60Hz and quasi-resonant flybacks up to ~100kHz, but lacks the ultrafast recovery (<35ns) and soft-recovery characteristics needed to minimize EMI and switching loss in LLC or active-clamp topologies.
Does HER603-T meet RoHS requirements?
HER603-T is not RoHS-compliant due to its traditional SnPb axial lead finish. For RoHS-compliant alternatives, consider HER603G (ON Semiconductor) or SB603 (Diodes Inc.), both offering identical electrical specs with matte tin terminations qualified for lead-free reflow and wave soldering.
HER603-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 60 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -65°C ~ 150°C
HER603-T FAQ
1.How can I place an order for HER603-T through Aetrix?
Please submit a Request for Quotation (RFQ) for HER603-T 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 HER603-T reliable?
The price and inventory of HER603-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER603-T is usually 5 days.
3.What payment methods are accepted for HER603-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER603-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER603-T?
HER603-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER603-T 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 HER603-T?
For technical support, including HER603-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER603-T requirements.
6.How does Aetrix verify that HER603-T is sourced from the original manufacturer or authorized distributors?
All HER603-T 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 HER603-T meets industry standards.
7.What is the process for return or replacement of HER603-T?
All HER603-T units undergo pre-shipment inspection (PSI). If there is an issue with HER603-T, 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 HER603-T part is unused and in its original packaging.
Return procedure for HER603-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HER603-T Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
