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Taiwan Semiconductor Corporation HER1605G
- Part No.:
- HER1605G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
HER1605G.pdf
- Description:
- DIODE ARRAY GP 400V 16A TO-220AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,395
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Product details
Overview
HER1605G from Taiwan Semiconductor is a 16A, 400V repetitive peak reverse voltage (VRRM) high-efficiency ultrafast recovery rectifier in TO-220AB package, featuring 1.3V forward voltage at 8A/25°C, 50ns reverse recovery time, and 80pF junction capacitance at 1MHz/4.0V - used in DC-DC converter freewheeling paths.
For engineers reviewing the HER1605G datasheet, HER1605G pinout, HER1605G application, or HER1605G equivalent, key selection criteria include VRRM = 400V, IF = 16A, trr = 50ns, VF = 1.3V @ 8A, and TO-220AB thermal performance (RθJC = 1.5°C/W) for high-frequency switching power supplies.
Technical Context
The HER1605G integrates dual die construction in a single TO-220AB package with common-cathode configuration, optimized for high-frequency switching operation up to 1MHz. Its ultrafast recovery (trr ≤ 50ns) and low junction capacitance (CJ = 80pF @ 1MHz, VR = 4.0V) minimize switching losses in hard-switched topologies.
Thermal design relies on direct case-to-heatsink conduction via the metal tab (rated for 0.56 N·m mounting torque), supported by RθJC = 1.5°C/W and TJ(max) = 150°C - enabling sustained 16A conduction under forced-air or heatsink-cooled conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling clamp circuits |
| IF | 16 A - average forward current rating at TC = 100°C; determines continuous power-handling capacity with heatsinking |
| trr | 50 ns - reverse recovery time at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables efficient operation in 100–500 kHz SMPS designs |
| VF | 1.3 V @ 8A, 25°C - forward voltage drop; directly impacts conduction loss and thermal rise in high-current paths |
| CJ | 80 pF @ 1 MHz, VR = 4.0 V - junction capacitance per diode; critical for EMI filtering and snubberless high-frequency rectification |
| RθJC | 1.5 °C/W - junction-to-case thermal resistance; enables precise heatsink sizing for 16A continuous duty |
Pinout & Package
HER1605G uses TO-220AB package with isolated metal tab (cathode-connected), matte tin-plated leads compliant with J-STD-002, and polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first diode | Accepts switched high-side current in dual-output or interleaved configurations |
| Anode 2 | Input terminal for second diode | Enables independent control or parallel current sharing with matched thermal path |
| Cathode (Tab) | Common cathode output | Electrically and thermally connected to metal tab; requires insulating washer if mounted to grounded heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery (trr ≤ 50 ns) | Reduces switching loss and EMI generation in 100–500 kHz DC-DC converters and inverters |
| Low VF = 1.3 V @ 8A | Lowers conduction loss by ~15% vs. standard FRDs with comparable VRRM, improving system efficiency |
| Dual-die common-cathode TO-220AB | Enables compact dual-path rectification without external paralleling; shares thermal mass for balanced junction temperature |
| Junction capacitance = 80 pF @ 1 MHz | Minimizes displacement current during voltage transitions, easing snubber design in high-dV/dt applications |
Applications
| DC-DC Converter Freewheeling | Switch-Mode Power Supply Output Rectification |
|---|---|
Use Scenario: Freewheeling path in synchronous or asynchronous buck converters delivering 12–48V outputs at 10–20A. IC Role / Device Role / Timing Role: High-current, ultrafast unidirectional current path during low-side switch off-time; recovers before next switching cycle. Use Value: 50ns trr and 1.3V VF reduce energy loss per cycle and thermal stress, supporting >300 kHz operation without excessive heatsinking. | Use Scenario: Secondary-side rectification in isolated flyback or forward converters for industrial power supplies. IC Role / Device Role / Timing Role: Main output rectifier handling full load current; operates under high dV/dt and repetitive surge conditions. Use Value: 125A IFSM and 400V VRRM withstand transient overvoltage and startup surges while maintaining low conduction loss. |
| Motor Drive Freewheeling Diode | Renewable Energy Inverter Auxiliary Rectification |
Use Scenario: Clamp diode across IGBTs or MOSFETs in H-bridge motor drivers for 3-phase BLDC or stepper systems. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive kickback during PWM dead-time; must recover before next gate drive pulse. Use Value: 50ns trr ensures clean commutation at PWM frequencies up to 20 kHz, preventing shoot-through risk from slow recovery. | Use Scenario: Auxiliary DC bus conditioning in solar microinverters or battery storage DC-AC stages. IC Role / Device Role / Timing Role: Low-loss rectification of auxiliary control rail or sensor supply derived from main inverter stage. Use Value: 80pF CJ and 1.3V VF enable stable, low-noise 12V/5V bias generation without added filtering complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1604D | VRRM = 400V, trr = 45ns, VF = 1.25V @ 8A, TO-220AC package (single anode) | Single-diode topology; lacks dual-anode flexibility for interleaved or dual-rail use | Select when only one rectification path is needed and lowest possible VF is prioritized |
| IXYS MUR1640CT | VRRM = 400V, trr = 60ns, VF = 1.35V @ 8A, TO-220AB dual common-cathode | Higher trr increases switching loss at >250 kHz; identical mechanical footprint and pinout | Choose when legacy compatibility with MUR1640CT layout is required and 50ns trr margin is acceptable |
Compared with STTH1604D and IXYS MUR1640CT, HER1605G delivers optimal balance of ultrafast recovery (50ns), low VF (1.3V), and dual-anode flexibility in TO-220AB - making it preferred for space-constrained, multi-rail, or high-frequency freewheeling designs where thermal coupling between diodes improves reliability.
Availability
HER1605G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode power supplies, and motor drive freewheeling applications requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for HER1605G 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 devices, and automotive-qualified components.
HER1605G belongs to TSC's HER160xG high-efficiency rectifier family, engineered specifically for high-frequency, high-current switching power conversion in industrial and automotive-grade power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HER1605G?
The HER1605G has a VRRM rating of 400 V, verified per Taiwan Semiconductor's official datasheet revision J2104. This value is fixed for the HER1605G variant and is not adjustable or programmable. Operating above 400 V risks avalanche breakdown and irreversible junction damage. Derating to 320 V is recommended for designs requiring 20% safety margin under transient conditions.
Does HER1605G support AEC-Q101 qualification?
HER1605G itself is not AEC-Q101 qualified; only the HER1605GH variant carries that qualification. The "H" suffix denotes automotive-grade screening per AEC-Q101. Standard HER1605G meets industrial reliability standards and RoHS/halogen-free requirements but lacks the extended temperature cycling, HTGB, and ESD testing required for automotive deployment.
What is the junction-to-case thermal resistance (RθJC) of HER1605G?
The HER1605G has a typical RθJC of 1.5°C/W, measured from silicon junction to the metal tab surface under standardized test conditions. This value assumes full contact between the tab and a flat, smooth heatsink with appropriate thermal interface material. Real-world RθJA will vary significantly based on heatsink size, airflow, and mounting pressure.
Can HER1605G be used in place of HER1604G or HER1606G?
HER1605G is not a drop-in replacement for HER1604G (VRRM = 300V) or HER1606G (VRRM = 600V) due to different reverse voltage ratings. Substitution requires verifying that system-level reverse transients remain within the 400V limit of HER1605G. Forward characteristics (VF, trr, IF) are closely matched across the HER160xG series, but VRRM mismatch may compromise reliability in overvoltage-prone circuits.
What does the "1MHz, VR = 4.0V" specification mean for HER1605G junction capacitance?
The "HER1605G 1MHz, VR = 4.0V" notation specifies the test condition under which the 80 pF junction capacitance (CJ) is measured: a 1 MHz small-signal AC voltage applied with 4.0 V reverse bias. This value reflects dynamic behavior during high-frequency switching and is essential for snubber design and EMI prediction - not a DC parameter.
HER1605G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io) (per Diode):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
HER1605G FAQ
1.How can I place an order for HER1605G through Aetrix?
Please submit a Request for Quotation (RFQ) for HER1605G 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 HER1605G reliable?
The price and inventory of HER1605G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER1605G is usually 5 days.
3.What payment methods are accepted for HER1605G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER1605G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER1605G?
HER1605G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER1605G 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 HER1605G?
For technical support, including HER1605G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER1605G requirements.
6.How does Aetrix verify that HER1605G is sourced from the original manufacturer or authorized distributors?
All HER1605G 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 HER1605G meets industry standards.
7.What is the process for return or replacement of HER1605G?
All HER1605G units undergo pre-shipment inspection (PSI). If there is an issue with HER1605G, 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 HER1605G part is unused and in its original packaging.
Return procedure for HER1605G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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