My Inquiry
My Account
Taiwan Semiconductor Corporation HERAF1601GH
- Part No.:
- HERAF1601GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF1601GH.pdf
- Description:
- 50NS, 16A, 50V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:7,844
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HERAF1601GH from Taiwan Semiconductor is a 16A, 50V AEC-Q101-qualified high-efficiency glass-passivated fast recovery rectifier in ITO-220AC package, featuring 1.0V max forward voltage at 16A/25°C, 250A surge rating, and 2°C/W junction-to-case thermal resistance. It serves as primary output rectifier in automotive DC-DC converters.
For engineers reviewing the HERAF1601GH datasheet, HERAF1601GH pinout, HERAF1601GH application, or HERAF1601GH equivalent, key selection criteria include its AEC-Q101 qualification, low VF for thermal efficiency, 50V VRRM rating, and ITO-220AC mounting compatibility with standard heatsinks.
Technical Context
This single-die fast recovery rectifier uses glass passivation for enhanced moisture resistance and junction reliability. Its 50V repetitive peak reverse voltage and 250A non-repetitive surge current support robust operation in transient-heavy automotive power rails.
The device exhibits 50ns typical reverse recovery time (trr) at IF = 0.5A, IR = 1.0A, Irr = 0.25A, and 150pF junction capacitance at 1MHz/4V - enabling efficient switching in 100–500kHz SMPS topologies without excessive switching loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous Forward Current) | 16 A - supports sustained output current in compact 12V–48V automotive DC-DC stages |
| VRRM (Repetitive Peak Reverse Voltage) | 50 V - rated for 12V system bus applications with margin against load dump transients |
| VF (Max Forward Voltage @ 16A, 25°C) | 1.0 V - reduces conduction loss to ≤16W at full load, easing thermal design |
| IFSM (Surge Current, 8.3ms) | 250 A - withstands cold-crank and jump-start surges without failure |
| RθJC (Junction-to-Case Thermal Resistance) | 2 °C/W - enables direct heatsink mounting for <10°C temperature rise at 16A |
| trr (Typical Reverse Recovery Time) | 50 ns - minimizes switching loss and EMI in high-frequency synchronous rectifier replacement |
| TJ Max (Maximum Junction Temperature) | 150 °C - supports under-hood operation up to ambient 105°C with proper derating |
Pinout & Package
ITO-220AC package: 3-terminal through-hole outline with isolated tab (cathode-connected), 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) | Input current entry point | Connected to switching node or transformer secondary; requires PCB copper pour for thermal relief |
| Cathode (Tab + Lead 2) | Output current exit point | Tab is electrically connected to cathode - must be isolated from chassis unless circuit ground reference permits |
| NC / Mechanical Support (Lead 3) | Mounting and mechanical stability | Non-electrical lead used for mechanical anchoring; no circuit function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications per stress test requirements |
| Glass-passivated junction | Prevents moisture-induced degradation and leakage current drift over 15+ year service life |
| Low VF (≤1.0V @ 16A) | Reduces power dissipation by ≥15% vs. standard FRDs with VF > 1.15V at same current |
| 250A IFSM rating | Eliminates need for parallel devices in cold-crank 12V systems with peak loads >200A |
| UL Recognized (E-326243) | Meets end-equipment safety certification requirements without additional component-level testing |
Applications
| Automotive DC-DC Converter | Industrial 24V Power Supply |
|---|---|
Use Scenario: Step-down conversion from 48V battery to 12V auxiliary rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or quasi-resonant flyback topology. Use Value: HERAF1601GH's 50V VRRM and 1.0V VF enable >92% efficiency at 15A load while meeting AEC-Q101 vibration and thermal cycling requirements. | Use Scenario: Output rectification in DIN-rail mounted 24V/20A industrial SMPS for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward converter secondary side. Use Value: HERAF1601GH's 250A surge rating handles motor startup inrush without derating, and its 2°C/W RθJC simplifies heatsink selection. |
| LED Driver Power Stage | Telecom -48V Backup Supply |
Use Scenario: High-current rectification in constant-current LED driver for commercial lighting fixtures. IC Role / Device Role / Timing Role: Output rectifier in phase-shifted full-bridge topology driving 10–20A LED strings. Use Value: HERAF1601GH's 50ns trr suppresses ringing during ZVS transitions, reducing EMI filter size by 30% vs. slower FRDs. | Use Scenario: Battery backup rectification in -48V telecom power shelf with hot-swap capability. IC Role / Device Role / Timing Role: OR-ing diode in redundant -48V input stage before DC-DC conversion. Use Value: HERAF1601GH's low VF minimizes voltage drop across OR-ing path, preserving backup runtime and enabling tighter bus regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1605D | 16A/50V, VF = 1.05V max @ 16A, trr = 45ns, TO-220AC package, not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select if AEC-Q101 is not required and slightly faster trr is prioritized |
| ON Semi MUR1620CT | 16A/200V dual common-cathode, VF = 1.1V max @ 16A, trr = 60ns, TO-220AB package | Higher VRRM but higher VF and slower trr; dual configuration adds layout complexity | Select only when 200V rating is mandatory and dual-output topology justifies extra pin count |
Compared with STTH1605D and MUR1620CT, HERAF1601GH uniquely combines AEC-Q101 compliance, 1.0V VF ceiling, and 50ns trr in a single-diode ITO-220AC package - making it the only drop-in solution for space-constrained, thermally demanding automotive 12V DC-DC outputs.
Availability
HERAF1601GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial 24V power supplies, and LED driver power stages requiring stable component supply, long-term lifecycle assurance, and traceable AEC-Q101-compliant sourcing.
Supply support for HERAF1601GH 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 consumer markets since 1979.
The HERAF series was developed specifically for high-reliability automotive power conversion, emphasizing AEC-Q101 qualification, glass passivation, and thermal performance in ITO-220AC packaging for under-hood deployment.
FAQ
What is the AEC-Q101 qualification status of HERAF1601GH?
HERAF1601GH is fully AEC-Q101 qualified per version K2105 of the datasheet. This includes stress testing for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock - confirming suitability for automotive powertrain and chassis applications. The "H" suffix explicitly denotes AEC-Q101 compliance, unlike non-H variants such as HERAF1601G.
Does HERAF1601GH have a cathode-connected tab?
Yes, HERAF1601GH uses an ITO-220AC package where the metal tab is electrically connected to the cathode terminal. Lead 2 is also cathode, and the tab serves as both thermal path and electrical connection. Electrical isolation from the heatsink is required unless the cathode is at system ground potential.
What is the maximum recommended mounting torque for HERAF1601GH?
The maximum mounting torque for HERAF1601GH is 0.56 N·m, as specified in the mechanical data section. Exceeding this value risks cracking the epoxy molding compound or damaging internal wire bonds. A calibrated torque screwdriver is recommended during heatsink assembly to ensure mechanical integrity and thermal contact consistency.
How does HERAF1601GH's forward voltage compare to HERAF1602GH at 16A?
HERAF1601GH has a maximum forward voltage of 1.0V at 16A and 25°C, while HERAF1602GH (100V variant) is rated at ≤1.0V under identical conditions. Both share the same die process and thermal design, so VF remains consistent across the 50–100V range; divergence begins at HERAF1603GH (200V) with VF ≤1.0V and HERAF1604GH (300V) with VF ≤1.0V per datasheet Table 3.
Is HERAF1601GH suitable for freewheeling applications in inductive loads?
Yes, HERAF1601GH is explicitly listed for freewheeling applications in its official documentation. Its 50ns trr, 250A IFSM, and 2°C/W RθJC make it effective for clamping back-EMF in automotive solenoid drivers, relay coils, and brushed DC motor controllers - especially where rapid turn-off and low conduction loss are critical.
HERAF1601GH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
HERAF1601GH FAQ
1.How can I place an order for HERAF1601GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF1601GH 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 HERAF1601GH reliable?
The price and inventory of HERAF1601GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF1601GH is usually 5 days.
3.What payment methods are accepted for HERAF1601GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF1601GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF1601GH?
HERAF1601GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF1601GH 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 HERAF1601GH?
For technical support, including HERAF1601GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF1601GH requirements.
6.How does Aetrix verify that HERAF1601GH is sourced from the original manufacturer or authorized distributors?
All HERAF1601GH 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 HERAF1601GH meets industry standards.
7.What is the process for return or replacement of HERAF1601GH?
All HERAF1601GH units undergo pre-shipment inspection (PSI). If there is an issue with HERAF1601GH, 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 HERAF1601GH part is unused and in its original packaging.
Return procedure for HERAF1601GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HERAF1601GH 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…
