My Inquiry
My Account
Taiwan Semiconductor Corporation HER605G
- Part No.:
- HER605G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
HER605G.pdf
- Description:
- DIODE GEN PURP 400V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,541
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HER605G from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode rated for 6 A average forward current and 400 V repetitive peak reverse voltage (VRRM), with low 1.3 V forward voltage at 6 A and 25°C, designed for freewheeling and switching-mode power supply applications in automotive and industrial converters.
For engineers reviewing the HER605G datasheet, HER605G pinout, HER605G application, or HER605G equivalent, key selection factors include its R-6 axial package, 150 A surge rating, 50 ns reverse recovery time, junction-to-ambient thermal resistance of 37°C/W, and AEC-Q101 qualification availability in H-suffix variants.
Technical Context
The HER605G operates as a single-die, unidirectional, standard-recovery rectifier optimized for high-frequency switching environments. Its 400 V VRRM and 280 V VR(RMS) support operation in 230 VAC input stages and DC-DC flyback topologies.
Thermally, it sustains continuous operation up to 150°C junction temperature with 37°C/W RθJA, and exhibits 80 pF junction capacitance at 1 MHz and 4.0 V reverse bias-critical for EMI control in high-speed converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in 230 VAC-derived DC bus designs |
| IF(AV) | 6 A - Continuous average forward current at TA = 75°C; supports 50–60 W power conversion without forced cooling |
| VF @ 6A, 25°C | 1.3 V - Forward conduction loss directly impacts efficiency; yields ~7.8 W conduction loss per diode at full load |
| IFSM (8.3 ms) | 150 A - Peak non-repetitive surge capability; withstands inrush and fault currents in SMPS startup and short-circuit events |
| trr | 50 ns - Reverse recovery time; enables stable operation up to ~200 kHz switching frequencies with minimal switching loss penalty |
| RθJA | 37 °C/W - Thermal resistance from junction to ambient; requires ≥2.5 cm² copper pour for 6 A continuous operation at 75°C ambient |
| CJ @ 1 MHz, 4 V | 80 pF - Junction capacitance; influences high-frequency noise coupling and snubber design in flyback and boost converters |
Pinout & Package
HER605G uses the R-6 axial leaded package with cathode indicated by a band on the body. Leads are pure tin-plated and solderable per J-STD-002. Weight: 1.65 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential node (e.g., switch node in flyback, ground return in freewheeling path) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive, transformer secondary high-side) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| AEC-Q101 qualified option (HER605GH) | Validated for automotive under-hood use including engine control modules and ADAS power supplies |
| Low VF (1.3 V @ 6 A) | Reduces conduction losses by ~15% vs. legacy 1N5408 (1.5 V), improving 12 V/5 A converter efficiency by 0.8–1.2% |
| High IFSM (150 A) | Eliminates need for parallel diodes in 100–200 W transient-tolerant supplies; simplifies BOM and layout |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for consumer, medical, and industrial end equipment |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24 V input, 5 V/6 A buck-derived flyback converter for industrial PLC I/O modules. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 6 A DC current with 400 V blocking during MOSFET off-time. Use Value: 1.3 V VF minimizes heat rise in confined enclosures; 50 ns trr prevents cross-conduction loss with synchronous FETs. | Use Scenario: Freewheeling path in 48 V battery-fed half-bridge motor drive for HVAC blowers. IC Role / Device Role / Timing Role: Clamp inductive kickback during PWM dead-time; conducts only during off-state of high-side switch. Use Value: 150 A IFSM safely absorbs 100 A motor stall surges; R-6 mechanical robustness resists vibration-induced lead fatigue. |
| AC–DC Adapter | Automotive Power Supply |
Use Scenario: Output rectification in universal-input (90–264 VAC), 12 V/3 A offline SMPS for PoE-powered access points. IC Role / Device Role / Timing Role: Main output diode in discontinuous conduction mode (DCM) flyback, conducting pulsed current at ~65 kHz. Use Value: 80 pF CJ limits high-frequency ringing; 37°C/W RθJA allows operation without heatsink at 75°C ambient. | Use Scenario: Input rectification stage in 12 V automotive infotainment DC–DC module (ISO 7637-2 compliant). IC Role / Device Role / Timing Role: Bridge input rectifier (used as single diode in half-wave configuration) handling cold-crank transients. Use Value: AEC-Q101-qualified variant (HER605GH) ensures validated performance across –40°C to +125°C junction range. |
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-HER105 | Same R-6 package, 400 V VRRM, but VF = 1.7 V @ 6 A; trr = 75 ns; no AEC-Q101 option | Higher conduction loss (~10.2 W vs. 7.8 W); less suitable for thermally constrained 6 A designs | Choose when cost sensitivity outweighs efficiency and automotive qualification needs |
| ON Semiconductor MUR640CT | TO-220AB package, dual common-cathode configuration, 400 V, VF = 1.25 V @ 6 A, trr = 35 ns | Requires PCB footprint change and thermal mounting; superior for >100 kHz or high-reliability telecom supplies | Choose when board space permits TO-220 and faster recovery is critical for EMI reduction |
Compared with VS-HER105, HER605G delivers lower conduction loss and AEC-Q101 readiness; versus MUR640CT, it offers axial R-6 compatibility and simplified thermal management but trades off recovery speed and dual-diode integration.
Availability
HER605G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, AC–DC adapters, and automotive power supplies requiring stable component supply with consistent parametric performance and RoHS/halogen-free compliance.
Supply support for HER605G 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors since 1979.
The HER601G–HER606G series was developed to deliver high-current, high-voltage rectification with enhanced thermal and surge robustness for automotive-grade and industrial switching power supplies.
FAQ
What is the maximum junction temperature rating for HER605G?
The HER605G has a maximum junction temperature (TJ) rating of +150°C, with a storage temperature range of –55°C to +150°C. This allows reliable operation in under-hood automotive environments and sealed industrial enclosures when mounted on adequate copper area per its 37°C/W RθJA.
Is HER605G pin-compatible with HER604G or HER606G?
Yes, HER605G shares identical R-6 package dimensions, lead spacing, polarity marking, and mechanical construction with all members of the HER601G–HER606G family. Only electrical parameters-VRRM, VF, and trr-differ between variants; no PCB layout change is needed when substituting within this series.
Does HER605G meet automotive qualification standards?
The base HER605G is not AEC-Q101 qualified, but the HER605GH variant-identical in all electrical and mechanical specs-is explicitly qualified per AEC-Q101. Designers targeting automotive applications must specify the "H" suffix to ensure qualification documentation and test reports are provided.
What is the reverse recovery time (trr) of HER605G and how is it measured?
The HER605G has a typical reverse recovery time (trr) of 50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standards. This value is confirmed in the official Taiwan Semiconductor datasheet Version H2104 and applies directly to HER605G-not extrapolated from adjacent variants.
Can HER605G replace a 1N5408 in an existing design?
HER605G can replace 1N5408 in many cases due to matching R-6 package and higher 6 A rating (vs. 1N5408's 3 A), but caution is required: HER605G has 400 V VRRM (vs. 1N5408's 1000 V) and faster 50 ns trr (vs. ~2000 ns). Verify reverse voltage stress and potential EMI impact before drop-in replacement.
HER605G 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):
- 400 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 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
HER605G FAQ
1.How can I place an order for HER605G through Aetrix?
Please submit a Request for Quotation (RFQ) for HER605G 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 HER605G reliable?
The price and inventory of HER605G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER605G is usually 5 days.
3.What payment methods are accepted for HER605G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER605G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER605G?
HER605G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER605G 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 HER605G?
For technical support, including HER605G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER605G requirements.
6.How does Aetrix verify that HER605G is sourced from the original manufacturer or authorized distributors?
All HER605G 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 HER605G meets industry standards.
7.What is the process for return or replacement of HER605G?
All HER605G units undergo pre-shipment inspection (PSI). If there is an issue with HER605G, 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 HER605G part is unused and in its original packaging.
Return procedure for HER605G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HER605G 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
