My Inquiry
My Account
Taiwan Semiconductor Corporation HS2FAH
- Part No.:
- HS2FAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS2FAH.pdf
- Description:
- 50NS, 1.5A, 300V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HS2FAH from Taiwan Semiconductor is a 1.5A, 300V repetitive peak reverse voltage (VRRM) surface-mount fast recovery rectifier in DO-214AC (SMA) package, featuring 50 ns reverse recovery time (trr), 1.0 V forward voltage at 1.5 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the HS2FAH datasheet, HS2FAH pinout, HS2FAH application, or HS2FAH equivalent, key selection criteria include its 300V VRRM, fast 50 ns trr, low 1.0 V VF at rated current, DO-214AC mechanical compatibility, and AEC-Q101 qualification for under-hood automotive power conversion.
Technical Context
The HS2FAH is a single-die, glass-passivated silicon junction rectifier optimized for high-efficiency DC/DC conversion and freewheeling in switching power supplies. Its 50 ns reverse recovery time enables operation at higher frequencies than standard recovery diodes, reducing switching losses.
It operates across –55°C to +150°C junction temperature range with 80°C/W junction-to-ambient thermal resistance. The device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum non-repetitive reverse blocking voltage; defines usable input voltage range in flyback or buck-derived topologies |
| IF | 1.5 A - Continuous average forward current; determines thermal design margin at ambient temperatures up to 75°C |
| trr | 50 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient operation in 100–500 kHz SMPS designs |
| VF | 1.0 V @ 1.5 A, 25°C - Forward conduction loss directly impacts efficiency and heatsink sizing in high-duty-cycle applications |
| CJ | 50 pF @ 1 MHz, 4 V - Junction capacitance affects high-frequency noise coupling and snubber design in hard-switched converters |
| TJ max | +150°C - Maximum junction temperature rating supports operation in engine compartment environments without derating below 125°C ambient |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case with cathode band polarity marking. Weight: 0.060 g. UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit terminal | Connected to output rail or filter capacitor; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions |
| Glass passivated chip junction | Provides stable leakage performance and long-term reliability under humidity and thermal stress |
| Fast 50 ns reverse recovery | Reduces switching loss and EMI generation compared to general-purpose rectifiers in high-frequency converters |
| DO-214AC (SMA) package | Standardized footprint compatible with automated pick-and-place and reflow processes; industry-wide PCB pad layout support |
Applications
| Automotive DC/DC Converters | LED Driver Freewheeling |
|---|---|
Use Scenario: Step-down voltage conversion in 12 V/48 V dual-battery systems for ADAS modules and infotainment units. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: 50 ns trr minimizes reverse recovery loss during high-frequency switching (200–350 kHz), improving overall converter efficiency by ~1.2% over 100 ns alternatives. | Use Scenario: High-intensity LED headlamp driver with PWM dimming and thermal foldback protection. IC Role / Device Role / Timing Role: Freewheeling path for inductive current during MOSFET off-time in boost or buck-boost LED drivers. Use Value: 1.0 V VF at 1.5 A reduces conduction loss in continuous conduction mode, limiting thermal rise in compact headlamp housings. |
| Snubber Networks | Industrial AC/DC Power Supplies |
Use Scenario: RCD clamp snubber across primary-side MOSFETs in offline flyback converters for industrial PLC power modules. IC Role / Device Role / Timing Role: Clamp diode conducting transient energy during MOSFET turn-off. Use Value: 300 V VRRM withstands reflected voltage spikes up to 280 V with 1.5× safety margin; fast trr ensures clean energy transfer into RC network. | Use Scenario: Secondary-side rectification in universal-input (85–265 VAC), 25 W industrial AC/DC adapter for sensors and actuators. IC Role / Device Role / Timing Role: Output rectifier delivering regulated 5 V/3.3 V to microcontroller subsystems. Use Value: AEC-Q101 qualification provides extended lifetime and failure rate confidence beyond standard commercial-grade diodes in 24/7 operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U (STMicroelectronics) | Same DO-214AC package, 600 V VRRM, 50 ns trr, but 1.15 V VF @ 1.5 A | Higher voltage rating suits 400 V bus designs; higher VF increases conduction loss in 12–24 V outputs | Select when system requires >300 V reverse margin or legacy ST design reuse |
| MBR1530CT (ON Semiconductor) | TO-220AB package, dual common-cathode configuration, 30 V VRRM, Schottky architecture | Lower VF (~0.55 V) but limited to ≤40 V applications; incompatible footprint and thermal profile | Choose only for low-voltage, high-current (<15 A) Schottky needs-no drop-in replacement for HS2FAH |
Compared with STTH1L06U and MBR1530CT, the HS2FAH offers optimal balance of 300 V blocking, 1.0 V forward drop, and AEC-Q101 compliance in a compact DO-214AC package-making it uniquely suited for cost-sensitive, space-constrained automotive and industrial 24–48 V power stages where both reliability and efficiency matter.
Availability
HS2FAH is available at Aetrix Electronics and suitable for automotive DC/DC converters, LED lighting drivers, and industrial AC/DC power supplies requiring stable component supply, AEC-Q101 assurance, and DO-214AC footprint compatibility.
Supply support for HS2FAH 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 MOSFETs for automotive and industrial markets.
The HS2FAH belongs to TSC's HS2x series of AEC-Q101-qualified fast recovery rectifiers designed specifically for high-reliability, high-efficiency power conversion in automotive electronics and harsh-environment industrial equipment.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS2FAH?
The HS2FAH has a VRRM of 300 V, as confirmed in the Absolute Maximum Ratings table across all versions of the HS2AAH–HS2MAH family documentation. This value is fixed for the "F" variant and defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions.
Is HS2FAH qualified for automotive applications?
Yes, HS2FAH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing-validating its suitability for under-hood and chassis-mounted automotive power systems.
What is the forward voltage (VF) of HS2FAH at rated current?
The HS2FAH exhibits a typical forward voltage of 1.0 V at 1.5 A and 25°C junction temperature, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents conduction loss critical for thermal and efficiency calculations in power supply design.
Does HS2FAH have a defined reverse recovery time (trr)?
Yes, HS2FAH has a maximum reverse recovery time of 50 ns, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is confirmed in the Electrical Specifications section and applies specifically to HS2AAH through HS2GAH variants, including HS2FAH.
What package type does HS2FAH use, and is it RoHS compliant?
HS2FAH uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads. It is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section of the official documentation. The package also meets UL 94V-0 flammability and J-STD-020 Level 1 moisture sensitivity standards.
HS2FAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 300 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2FAH FAQ
1.How can I place an order for HS2FAH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2FAH 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 HS2FAH reliable?
The price and inventory of HS2FAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2FAH is usually 5 days.
3.What payment methods are accepted for HS2FAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2FAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2FAH?
HS2FAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2FAH 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 HS2FAH?
For technical support, including HS2FAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2FAH requirements.
6.How does Aetrix verify that HS2FAH is sourced from the original manufacturer or authorized distributors?
All HS2FAH 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 HS2FAH meets industry standards.
7.What is the process for return or replacement of HS2FAH?
All HS2FAH units undergo pre-shipment inspection (PSI). If there is an issue with HS2FAH, 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 HS2FAH part is unused and in its original packaging.
Return procedure for HS2FAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HS2FAH 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…
