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Taiwan Semiconductor Corporation HERAF1603G
- Part No.:
- HERAF1603G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF1603G.pdf
- Description:
- 50NS, 16A, 200V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:8,606
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Product details
Overview
HERAF1603G from Taiwan Semiconductor is a single-die, glass-passivated high-efficiency rectifier in ITO-220AC package, rated for 16A average forward current, 200V repetitive peak reverse voltage (VRRM), and 250A surge capability. It delivers low 1.0V forward voltage at 16A/25°C and exhibits 50ns reverse recovery time, making it suitable for high-frequency switching mode power supplies.
For engineers reviewing the HERAF1603G datasheet, HERAF1603G pinout, HERAF1603G application, or HERAF1603G equivalent, key selection factors include its VRRM=200V rating, VF=1.0V @16A, trr=50ns, RθJC=2°C/W thermal resistance, and AEC-Q101 qualification option (HERAF1603GH).
Technical Context
This device operates as a unidirectional power rectifier with a single PN junction optimized for fast recovery and low conduction loss. Its glass-passivated chip junction ensures stable performance under thermal cycling and humid environments, while the ITO-220AC package enables direct heatsink mounting via the metal tab.
The HERAF1603G supports high-current freewheeling and DC–DC conversion with TJ max = 150°C, IR ≤10 µA @25°C, and CJ = 150 pF @1 MHz/4V - parameters confirmed across the HERAF1601G–1604G subgroup in the official datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Average Forward Current) | 16 A - supports continuous output current in 100–200W SMPS designs |
| VRRM (Repetitive Peak Reverse Voltage) | 200 V - compatible with 120VAC input PFC stages and 200V bus rails |
| VF @16A, 25°C | 1.0 V - reduces conduction loss to ~16W at full load, easing thermal design |
| trr (Reverse Recovery Time) | 50 ns - minimizes switching loss and EMI in 50–200 kHz converters |
| RθJC (Junction-to-Case) | 2 °C/W - enables >10W dissipation with standard heatsinking at ≤40°C rise |
| IFSM (Surge Current) | 250 A - withstands inrush and transient overloads without failure |
| CJ @1MHz, 4V | 150 pF - limits capacitive coupling noise in high-dv/dt applications |
Pinout & Package
Package: ITO-220AC - insulated TO-220 variant with electrically isolated metal tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m maximum mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to AC or switching node; requires trace width ≥1.5 mm for 16A |
| Cathode (Lead 2) | Output current exit point | Connected to output rail or ground return; serves as main heat path to heatsink |
| Tab (Metal Case) | Electrically isolated thermal path | Internally connected to cathode but insulated from PCB; must be mounted to heatsink without dielectric pad if isolation not required |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Prevents moisture ingress and metallization corrosion, extending lifetime in automotive under-hood environments |
| AEC-Q101 qualified version available | HERAF1603GH meets stress test requirements for automotive power electronics (HTOL, TC, HTRB) |
| UL Recognized (E-326243) | Validates flammability, tracking, and insulation integrity per UL 60747-1 |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and WEEE compliance in end equipment |
| JESD201 Class 2 whisker resistance | Ensures long-term solder joint reliability in vibration-prone industrial applications |
Applications
| DC–DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 48V–12V buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode replacing MOSFETs where gate drive complexity is undesirable. Use Value: Delivers 1.0V VF and 50ns trr to reduce conduction + switching losses by >15% vs. standard FRDs in 100 kHz designs. | Use Scenario: Output rectification in single-phase motor drive inverters with 200V DC bus. IC Role / Device Role / Timing Role: Unidirectional current clamp during PWM dead-time intervals and regenerative braking. Use Value: 250A IFSM handles motor stall surges; 200V VRRM matches bus voltage with 20% margin. |
| Freewheeling Diodes | Industrial Power Supplies |
Use Scenario: Inductive load flyback protection in solenoid drivers and relay modules. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when inductive energy dissipates. Use Value: 16A IF rating supports 12–24V/10A+ actuators; 2°C/W RθJC allows compact heatsinking. | Use Scenario: Input bridge rectification in 200W industrial AC–DC front-ends with universal input. IC Role / Device Role / Timing Role: Primary rectifier handling line-frequency and harmonic currents. Use Value: Glass passivation ensures reliability across 40–95% RH environments; UL recognition simplifies safety certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602CW | VRRM=200V, VF=1.15V @16A, trr=45ns, TO-247AC package | Larger footprint, higher thermal mass; requires different mounting hardware | Preferred where higher surge margin or legacy TO-247 layout exists |
| IXYS MUR1620CT | VRRM=200V, VF=1.1V @16A, trr=35ns, TO-220AB dual common-cathode | Dual-diode configuration; not pin-compatible; higher cost | Used when dual-channel rectification or faster recovery is mandatory |
Compared with STTH1602CW and IXYS MUR1620CT, the HERAF1603G offers lower VF and identical VRRM in a smaller ITO-220AC package with integrated insulation - advantageous for space-constrained, thermally sensitive, or cost-sensitive industrial and automotive auxiliary power designs.
Availability
HERAF1603G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, freewheeling circuits, and industrial power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for HERAF1603G 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 diodes, and MOSFETs for industrial and automotive markets.
The HERAF1603G belongs to TSC's high-efficiency rectifier product line, engineered specifically for high-reliability, high-frequency switching power conversion where low VF, fast trr, and robust thermal performance are critical.
FAQ
What is the maximum junction temperature rating for HERAF1603G?
The HERAF1603G has a maximum junction temperature (TJ MAX) of +150°C, validated per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version K2105. This rating applies under steady-state and transient conditions, provided thermal design maintains case temperature within derating curves. Operation beyond 150°C risks irreversible degradation of the glass-passivated junction.
Is HERAF1603G pin-compatible with other devices in the HERAF16xxG family?
Yes, all HERAF1601G through HERAF1606G share identical ITO-220AC packaging, pinout, and terminal configuration - only VRRM, VF, and CJ differ across variants. The HERAF1603G uses the same Anode–Cathode–Tab layout and mechanical dimensions as HERAF1601G and HERAF1604G, enabling drop-in replacement when voltage rating aligns with system requirements.
Does HERAF1603G meet automotive qualification standards?
The standard HERAF1603G is not AEC-Q101 qualified; however, the HERAF1603GH variant is explicitly certified to AEC-Q101. Per Taiwan Semiconductor's ordering information, the "H" suffix denotes qualification - including HTOL, temperature cycling, and HTRB testing - making HERAF1603GH suitable for automotive body electronics and ADAS power modules.
What is the reverse leakage current specification for HERAF1603G at elevated temperature?
At TJ = 125°C and rated VR, the HERAF1603G exhibits a maximum reverse leakage current (IR) of 400 µA, as specified in the Electrical Specifications table of the datasheet. At 25°C, IR is limited to 10 µA. This behavior is consistent across the HERAF1601G–1604G subgroup and reflects the device's stable silicon junction characteristics.
How does the ITO-220AC package of HERAF1603G differ from standard TO-220AC?
The ITO-220AC package used by HERAF1603G features an electrically insulated metal tab - unlike conductive TO-220AC - enabling direct heatsink mounting without thermal pads or insulators when cathode isolation is not required. It retains the same footprint and lead spacing as TO-220AC but adds UL 94V-0 flame resistance and JESD201 Class 2 whisker compliance per datasheet mechanical data.
HERAF1603G 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):
- 200 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 @ 200 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
HERAF1603G FAQ
1.How can I place an order for HERAF1603G through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF1603G 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 HERAF1603G reliable?
The price and inventory of HERAF1603G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF1603G is usually 5 days.
3.What payment methods are accepted for HERAF1603G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF1603G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF1603G?
HERAF1603G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF1603G 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 HERAF1603G?
For technical support, including HERAF1603G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF1603G requirements.
6.How does Aetrix verify that HERAF1603G is sourced from the original manufacturer or authorized distributors?
All HERAF1603G 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 HERAF1603G meets industry standards.
7.What is the process for return or replacement of HERAF1603G?
All HERAF1603G units undergo pre-shipment inspection (PSI). If there is an issue with HERAF1603G, 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 HERAF1603G part is unused and in its original packaging.
Return procedure for HERAF1603G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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