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Taiwan Semiconductor Corporation HERAF1601G
- Part No.:
- HERAF1601G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF1601G.pdf
- Description:
- 50NS, 16A, 50V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:3,197
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Product details
Overview
HERAF1601G from Taiwan Semiconductor is a single-die, glass-passivated high-efficiency rectifier in ITO-220AC package, rated for 16 A average forward current, 50 V repetitive peak reverse voltage, and 250 A surge capability at 8.3 ms. It delivers low forward voltage (1.0 V max at 16 A, 25°C) and fast reverse recovery (50 ns typ), suited for DC-DC converters in automotive and industrial power supplies.
For engineers reviewing the HERAF1601G datasheet, HERAF1601G pinout, HERAF1601G application, or HERAF1601G equivalent, key selection factors include its 50 V VRRM, 1.0 V VF at full rated current, 2 °C/W junction-to-case thermal resistance, AEC-Q101 qualification option (HERAF1601GH), and ITO-220AC mechanical compatibility with standard heatsink mounting.
Technical Context
The HERAF1601G employs a planar passivated silicon die optimized for high-current, low-loss rectification in switching-mode topologies. Its 50 V VRRM rating targets low-voltage DC-DC stages, while the 250 A IFSM enables robust handling of transient surges common in motor drive freewheeling paths.
Thermally, the device achieves 2 °C/W RθJC via direct copper tab mounting in the ITO-220AC case, supporting continuous 16 A operation up to 125°C case temperature per derating curves. Junction capacitance is 150 pF at 4 V reverse bias, contributing to low switching loss in high-frequency converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in low-voltage buck or flyback secondary side |
| IF | 16 A - Continuous average forward current at TC = 100°C; supports high-power density converter designs |
| VF | ≤1.0 V @ 16 A, 25°C - Low conduction loss reduces heat generation and improves system efficiency |
| IFSM | 250 A @ 8.3 ms - Withstands short-duration inrush and fault currents without failure |
| trr | ≤50 ns - Fast recovery minimizes switching losses and EMI in >100 kHz SMPS |
| RθJC | 2 °C/W - Enables effective thermal coupling to heatsinks; critical for sustained 16 A operation |
| Junction Temp | –55°C to +150°C - Wide operating range supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated metal tab (electrically floating), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/high-side node in rectifier configuration; requires PCB trace width matching 16 A continuous rating |
| Cathode (Tab) | Forward current exit / heat sink interface | Electrically isolated metal tab serves as cathode terminal and primary thermal path; must be mounted to heatsink with electrically insulating thermal pad or washer |
| Cathode (Lead 2) | Secondary cathode connection | Provides auxiliary cathode routing for layout flexibility; tied internally to tab; not isolated from tab |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture ingress and surface leakage, ensuring long-term reliability in humid or condensing environments |
| AEC-Q101 qualified option (HERAF1601GH) | Validated for automotive power electronics including engine control modules and ADAS power supplies |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in industrial and medical-adjacent systems |
| Halogen-free & RoHS compliant | Complies with IEC 61249-2-21 and EU RoHS Directive; suitable for green manufacturing and export markets |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability applications over extended temperature cycling |
Applications
| Automotive DC-DC Converters | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V subsystem rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: HERAF1601G serves as synchronous rectifier or output diode in buck converter secondary stage. Use Value: 1.0 V VF and 50 ns trr reduce conduction and switching losses, improving efficiency by ≥1.2% versus standard FRDs at 200 kHz. | Use Scenario: Clamping inductive kickback during IGBT turn-off in 3-phase BLDC motor inverters. IC Role / Device Role / Timing Role: HERAF1601G operates as freewheeling diode across motor phase windings. Use Value: 250 A IFSM withstands repetitive surge events without degradation; 2 °C/W RθJC enables direct heatsink mounting for thermal stability. |
| Telecom Power Rectification | Renewable Energy Charge Controllers |
Use Scenario: Output rectification in 48 V telecom rectifier modules delivering up to 300 W. IC Role / Device Role / Timing Role: HERAF1601G functions as primary output diode in forward or LLC resonant converter. Use Value: Low 150 pF junction capacitance minimizes capacitive switching loss and EMI generation at 300–500 kHz switching frequencies. | Use Scenario: Battery charging path in solar charge controllers interfacing 24 V PV arrays with lead-acid or LiFePO4 banks. IC Role / Device Role / Timing Role: HERAF1601G provides unidirectional current flow and reverse polarity protection. Use Value: –55°C to +150°C operating range ensures reliable startup and operation in outdoor enclosures exposed to desert or alpine temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1605D | 50 V VRRM, 16 A IF, 1.15 V VF max, TO-220AC package, no AEC-Q101 option | Higher VF increases conduction loss; lacks automotive qualification | Preferred where cost sensitivity outweighs efficiency and automotive compliance needs |
| VS-16CTH05-M3/45 | 50 V VRRM, 16 A IF, 1.05 V VF max, ITO-220AC, AEC-Q101 qualified | Marginally higher VF; identical thermal and surge specs; same footprint | Drop-in alternative when dual-sourcing or second-source validation required |
Compared with STTH1605D and VS-16CTH05-M3/45, the HERAF1601G offers the lowest specified VF (1.0 V max) and is available in an AEC-Q101-qualified version (HERAF1601GH), making it optimal for efficiency-critical and automotive-grade designs where thermal performance and reliability are prioritized.
Availability
HERAF1601G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drive freewheeling circuits, and telecom power rectification requiring stable component supply and long-term manufacturability.
Supply support for HERAF1601G 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 devices, rectifiers, TVS diodes, and MOSFETs since 1979.
The HERAF1601G belongs to TSC's high-efficiency rectifier product line, engineered specifically for high-current, low-VF, fast-recovery applications in automotive, industrial, and telecom power systems.
FAQ
What is the maximum junction temperature rating for the HERAF1601G?
The HERAF1601G has a maximum junction temperature (TJ) of +150°C, with a storage temperature range of –55°C to +150°C. This rating allows operation in demanding environments such as under-hood automotive locations or enclosed industrial power supplies, provided thermal design maintains junction temperature within limits using the specified 2 °C/W RθJC and appropriate heatsinking. The HERAF1601G datasheet confirms this value across all absolute maximum ratings tables.
Is the HERAF1601G pin-compatible with other parts in the HERAF16xxG family?
Yes - all HERAF16xxG devices share identical ITO-220AC packaging, pinout (anode lead, cathode tab, cathode lead), and mechanical dimensions. The only differences are VRRM (50 V to 600 V) and associated electrical parameters like VF and trr. Therefore, HERAF1601G can be substituted with HERAF1602G–HERAF1606G on the same PCB layout if voltage and recovery requirements permit, but the HERAF1601G itself is optimized for 50 V systems.
Does the HERAF1601G have AEC-Q101 qualification?
The base HERAF1601G is not AEC-Q101 qualified; however, the variant HERAF1601GH is explicitly listed in the ordering information as AEC-Q101 qualified. This qualification covers stress testing for temperature cycling, humidity bias, and mechanical shock, validating suitability for automotive power electronics. Always specify the "H" suffix when automotive-grade reliability is required for the HERAF1601G family.
What is the reverse recovery time (trr) specification for the HERAF1601G?
The HERAF1601G has a typical reverse recovery time (trr) of 50 ns, measured at IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A. This fast recovery characteristic is confirmed in the Electrical Specifications table and supports high-frequency switching (>200 kHz) with minimal switching loss and reduced EMI generation. The HERAF1601G's trr is among the lowest in its 50 V, 16 A class.
How does the HERAF1601G's forward voltage compare to competing 50 V rectifiers?
The HERAF1601G specifies a maximum forward voltage of 1.0 V at 16 A and 25°C - lower than STTH1605D (1.15 V) and VS-16CTH05-M3/45 (1.05 V). This 50–100 mV advantage directly reduces conduction loss and thermal load, especially critical in thermally constrained applications. The HERAF1601G achieves this via optimized silicon process and glass passivation, as documented in its K2105 revision datasheet.
HERAF1601G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Capacitance @ Vr, F:
- 150pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
HERAF1601G FAQ
1.How can I place an order for HERAF1601G through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF1601G 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 HERAF1601G reliable?
The price and inventory of HERAF1601G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF1601G is usually 5 days.
3.What payment methods are accepted for HERAF1601G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF1601G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF1601G?
HERAF1601G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF1601G 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 HERAF1601G?
For technical support, including HERAF1601G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF1601G requirements.
6.How does Aetrix verify that HERAF1601G is sourced from the original manufacturer or authorized distributors?
All HERAF1601G 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 HERAF1601G meets industry standards.
7.What is the process for return or replacement of HERAF1601G?
All HERAF1601G units undergo pre-shipment inspection (PSI). If there is an issue with HERAF1601G, 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 HERAF1601G part is unused and in its original packaging.
Return procedure for HERAF1601G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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