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Taiwan Semiconductor Corporation HERAF1602G
- Part No.:
- HERAF1602G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF1602G.pdf
- Description:
- 50NS, 16A, 100V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:6,149
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Product details
Overview
HERAF1602G from Taiwan Semiconductor is a 16A, 100V glass-passivated high-efficiency rectifier diode in ITO-220AC package, featuring 250A surge capability, 1.0V forward voltage at 16A/25°C, and AEC-Q101 qualification option (HERAF1602GH). It serves as primary output rectifier in automotive DC-DC converters.
For engineers reviewing the HERAF1602G datasheet, HERAF1602G pinout, HERAF1602G application, or HERAF1602G equivalent, key selection criteria include repetitive peak reverse voltage (100V), junction-to-case thermal resistance (2°C/W), reverse recovery time (≤50ns), and UL recognition (E-326243).
Technical Context
This single-die silicon rectifier uses planar passivation for stable operation under high-temperature stress (TJ up to +150°C) and high dv/dt conditions. Its low VF and fast trr reduce conduction and switching losses in high-frequency SMPS topologies.
The ITO-220AC package enables direct heatsink mounting with 0.56 N·m torque limit and meets JESD201 Class 2 whisker resistance. Matte tin-plated leads comply with J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 16 A - Continuous average forward current at case temperature ≤75°C |
| IFSM | 250 A - Peak non-repetitive surge current (8.3 ms half-sine), supports inrush handling |
| VF | 1.0 V - Forward voltage drop at 16 A and 25°C junction temperature, defines conduction loss |
| trr | ≤50 ns - Reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A, limits switching loss |
| RθJC | 2 °C/W - Thermal resistance from junction to case, enables 75°C case temp at full 16A load |
| IR | 10 µA max @ 25°C - Low leakage ensures minimal standby power loss in high-impedance circuits |
Pinout & Package
ITO-220AC package: 3-terminal through-hole outline with isolated tab (cathode-connected metal base), matte tin-plated leads, UL 94V-0 molding compound, 1.70g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry | Connects to input/high-side node; must withstand full surge current path |
| Cathode (Tab) | Forward current exit / Heat dissipation surface | Electrically active cathode terminal; requires insulated mounting when not referenced to ground |
| Cathode (Lead 2) | Secondary cathode connection | Provides low-inductance return path; used with tab for parallel conduction or enhanced thermal coupling |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture ingress and ion migration, enabling >15-year reliability in automotive underhood environments |
| AEC-Q101 qualification (HERAF1602GH) | Validated for automotive powertrain and chassis applications per stress test requirements |
| UL Recognized File #E-326243 | Confirms flame-retardant packaging and electrical safety compliance for end-equipment certification |
| Halogen-free per IEC 61249-2-21 | Meets RoHS and WEEE environmental mandates without compromising thermal or mechanical performance |
| JESD201 Class 2 whisker resistance | Guarantees long-term solder joint integrity under thermal cycling in industrial control modules |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFETs in high-current output stage. Use Value: 1.0V VF reduces conduction loss by ~35% vs. standard FRD alternatives at 16A, improving system efficiency by 1.2%. | Use Scenario: 48V output rail in programmable logic controller (PLC) power module. IC Role / Device Role / Timing Role: Output freewheeling diode in flyback topology operating at 100 kHz switching frequency. Use Value: ≤50ns trr minimizes reverse recovery ringing, eliminating need for snubbers and reducing EMI filter size. |
| Solar Microinverters | Server VRM Output Stage |
Use Scenario: DC link rectification in dual-string microinverter with MPPT tracking. IC Role / Device Role / Timing Role: High-reliability output rectifier handling intermittent 250A surges during cloud-edge transients. Use Value: 250A IFSM rating supports 2× overcurrent margin without derating, extending field lifetime beyond 20 years. | Use Scenario: 12V-to-1.2V step-down VRM supplying GPU core voltage in AI accelerator servers. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in multiphase buck converter with 500 kHz–1 MHz operation. Use Value: 2°C/W RθJC allows direct heatsink attachment, maintaining TJ < 125°C at 16A continuous load without forced air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602D | VRRM = 200V, VF = 1.15V @ 16A, trr = 45ns, TO-220AC package | Higher voltage rating suits 200V bus designs; slightly higher VF increases conduction loss | Select when 200V blocking is required and 0.15V VF penalty is acceptable for improved surge margin |
| ON Semi MUR1620CT | Dual common-cathode configuration, VRRM = 200V, VF = 1.2V @ 8A per die, trr = 35ns | Requires redesign for single-diode layout; optimized for dual-rail outputs or interleaved phases | Choose only if dual-diode topology is already implemented and space permits larger footprint |
Compared with STTH1602D and MUR1620CT, HERAF1602G offers the lowest VF (1.0V) at its rated 100V class and native AEC-Q101 qualification path-critical for automotive-grade 48V systems where thermal headroom and qualification traceability are mandatory.
Availability
HERAF1602G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and solar microinverter designs requiring stable component supply across extended production lifecycles.
Supply support for HERAF1602G 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, serving automotive, industrial, and computing markets since 1979.
The HERAF series targets high-reliability power conversion applications demanding AEC-Q101 compliance, low-loss rectification, and robust thermal performance in constrained mechanical envelopes.
FAQ
What is the maximum junction temperature rating for HERAF1602G?
The HERAF1602G has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings table. This allows operation in under-hood automotive environments and high-ambient industrial settings. Derating curves confirm 16A continuous current is sustainable up to 75°C case temperature, directly enabled by its 2°C/W junction-to-case thermal resistance.
Is HERAF1602G pin-compatible with HERAF1602GH?
Yes-HERAF1602G and HERAF1602GH share identical ITO-220AC mechanical dimensions, pinout, and electrical specifications. The "H" suffix denotes AEC-Q101 qualification; both parts use the same die and assembly process, differing only in test screening and documentation. No PCB changes are required when upgrading to the qualified version.
What does the marking code "HERAF1602G" indicate on the device body?
The marking "HERAF1602G" identifies the specific variant: "HERAF" = high-efficiency rectifier family, "16" = 16A rating, "02" = 100V VRRM, "G" = green (halogen-free) molding compound. Date code and factory code appear separately per package outline diagram; "G" does not denote RoHS status alone but confirms full IEC 61249-2-21 compliance.
Can HERAF1602G be used in place of a Schottky diode in a 100 kHz flyback converter?
HERAF1602G is suitable where VRRM ≥ 100V and switching speed (trr ≤ 50ns) meets design requirements-but unlike Schottkys, it exhibits higher VF (1.0V vs. ~0.5V) and minority-carrier behavior. Use it when thermal robustness, surge tolerance, or cost outweighs ultra-low forward loss; avoid in < 48V, high-duty-cycle applications where Schottky's lower VF dominates efficiency.
What is the reverse leakage current specification for HERAF1602G at elevated temperature?
HERAF1602G specifies reverse current (IR) ≤ 10 µA at 25°C and ≤ 400 µA at 125°C, measured at rated VR. This low high-temperature leakage preserves standby efficiency in always-on automotive modules and prevents thermal runaway in parallel configurations when properly heatsinked.
HERAF1602G 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):
- 100 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 @ 100 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
HERAF1602G FAQ
1.How can I place an order for HERAF1602G through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF1602G 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 HERAF1602G reliable?
The price and inventory of HERAF1602G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF1602G is usually 5 days.
3.What payment methods are accepted for HERAF1602G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF1602G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF1602G?
HERAF1602G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF1602G 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 HERAF1602G?
For technical support, including HERAF1602G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF1602G requirements.
6.How does Aetrix verify that HERAF1602G is sourced from the original manufacturer or authorized distributors?
All HERAF1602G 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 HERAF1602G meets industry standards.
7.What is the process for return or replacement of HERAF1602G?
All HERAF1602G units undergo pre-shipment inspection (PSI). If there is an issue with HERAF1602G, 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 HERAF1602G part is unused and in its original packaging.
Return procedure for HERAF1602G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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