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Taiwan Semiconductor Corporation HS2FA
- Part No.:
- HS2FA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS2FA.pdf
- Description:
- DIODE GEN PURP 300V 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,880
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Product details
Overview
HS2FA 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 max forward voltage at 1.5 A, and 5 µA max reverse leakage at 25°C - deployed in DC-DC converters and snubber circuits.
For engineers reviewing the HS2FA datasheet, HS2FA pinout, HS2FA application, or HS2FA equivalent, key selection criteria include its 300V VRRM, 50 ns trr, DO-214AC thermal resistance (RθJA = 80°C/W), junction temperature range (–55°C to +150°C), and compatibility with automated SMT placement.
Technical Context
The HS2FA uses a single-die, glass-passivated silicon junction optimized for fast switching in high-frequency power conversion. Its 50 ns reverse recovery time and 1.0 V forward voltage at rated current support efficiency in switching-mode topologies where diode conduction loss and turn-off energy must be minimized.
Designed for surface-mount assembly, the DO-214AC (SMA) package provides moisture sensitivity level 1 (per J-STD-020), matte tin-plated leads compliant with J-STD-002, and UL 94V-0 molding compound - enabling reliable reflow soldering and long-term reliability in industrial power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - maximum repetitive reverse voltage before breakdown; defines safe operating limit in flyback or boost converter output stage |
| IF | 1.5 A continuous - average forward current rating at 75°C ambient; determines thermal derating in compact PCB layouts |
| trr | 50 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables operation up to ~2 MHz switching frequency without excessive switching loss |
| VF (max) | 1.0 V at IF = 1.5 A, TJ = 25°C - directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| IR (max) | 5 µA at VR = 300 V, TJ = 25°C - low leakage supports stable voltage hold in high-impedance snubber networks |
| RθJA | 80 °C/W - junction-to-ambient thermal resistance in standard JEDEC 2s2p footprint; guides heatsinking requirements for >0.8 W dissipation |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with axial leads formed into gull-wing configuration; cathode indicated by band; polarity-critical for unidirectional current flow in freewheeling paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must withstand surge current up to 50 A (8.3 ms half-sine) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); carries full reverse voltage up to 300 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable reverse characteristics and long-term reliability under humidity and thermal cycling stress |
| Fast recovery (50 ns) | Reduces switching loss and EMI generation in 100 kHz – 1 MHz SMPS designs compared to standard rectifiers |
| Low profile DO-214AC (SMA) | 0.060 g weight and JEDEC-standard footprint allow high-density layout and compatibility with automated pick-and-place |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cost and process complexity |
Applications
| DC-DC Converter Output Stage | Snubber Network Diode |
|---|---|
Use Scenario: Used as output rectifier in non-isolated buck converter delivering 12 V/1.2 A from 24 V input. IC Role / Device Role / Timing Role: Unidirectional current valve conducting during low-side switch off-time; blocks reverse current during on-time. Use Value: 50 ns trr minimizes reverse recovery charge (Qrr), reducing voltage spikes and MOSFET stress during commutation. | Use Scenario: Placed across switching FET and transformer primary in flyback converter to clamp voltage spikes. IC Role / Device Role / Timing Role: Fast clamping diode that conducts transient energy during switch turn-off edge. Use Value: 1.0 V VF ensures low clamping threshold, while 300 V VRRM accommodates reflected voltage plus margin. |
| Freewheeling Path in Motor Drive | Lighting Driver Freewheel Diode |
Use Scenario: Provides current path for inductive kickback when H-bridge low-side FET turns off in 24 V BLDC gate driver. IC Role / Device Role / Timing Role: Freewheeling diode conducting during dead-time and FET off-periods. Use Value: 1.5 A IF rating and 50 A IFSM handle motor stall currents without thermal runaway. | Use Scenario: Used in constant-current LED driver with buck topology powering 10× 3 V LEDs in series. IC Role / Device Role / Timing Role: Output rectifier synchronizing with PWM-controlled switch to regulate LED current. Use Value: Low VF improves overall efficiency (>92%) and reduces thermal load on compact LED module PCB. |
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, 1.05 V VF, 55 ns trr; higher leakage (10 µA @ 25°C) | Higher voltage rating suits 400 V bus systems; slightly slower recovery increases switching loss at >500 kHz | Select when 600 V standoff is required and 5 ns trr penalty is acceptable |
| ES1J (ON Semiconductor) | DO-214AC; 600 V VRRM, 1.7 V VF, 35 ns trr; higher forward drop offsets faster recovery benefit | Better trr but worse conduction loss; optimal only in ultra-high-frequency, low-current (<0.5 A) snubbers | Prefer for <100 kHz designs where VF dominates loss budget over trr |
Compared with STTH1L06U and ES1J, the HS2FA offers the best balance of 300 V rating, 1.0 V VF, and 50 ns trr for mid-voltage (200–400 V) DC-DC and lighting applications where thermal and switching loss trade-offs are tightly coupled.
Availability
HS2FA is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, and lighting drivers requiring stable component supply, consistent parametric performance across production lots, and full traceability to Taiwan Semiconductor wafer fabrication.
Supply support for HS2FA 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 consumer power systems.
The HS2FA belongs to TSC's HS2x series of high-efficiency fast recovery rectifiers, engineered specifically for high-frequency switching power supplies where low VF, fast trr, and robust thermal performance are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS2FA?
The HS2FA has a VRRM of 300 V, as confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's J2102 datasheet. This value defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions, making it suitable for 200–300 V DC bus applications. Exceeding this rating risks irreversible junction failure.
Does HS2FA have a specified reverse recovery time (trr) and how is it measured?
Yes, HS2FA has a maximum trr of 50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the Electrical Specifications table. This parameter reflects the time required for minority carriers to clear after forward conduction ceases, directly impacting switching loss and EMI in high-frequency converters using the HS2FA.
What package type does HS2FA use and what are its assembly implications?
HS2FA uses the DO-214AC (SMA) surface-mount package, with gull-wing leads, cathode band marking, and moisture sensitivity level 1 (MSL-1). This allows direct placement onto standard SMT lines without baking, supports reflow profiles per J-STD-020, and fits JEDEC-standard footprints - all verified in the Mechanical Data section of the HS2FA datasheet.
What is the forward voltage (VF) of HS2FA at its rated current?
The HS2FA exhibits a maximum forward voltage of 1.0 V at IF = 1.5 A and TJ = 25°C, as specified in the Electrical Specifications table. This VF value directly determines conduction loss (Pcond = IF × VF) and influences thermal design in applications such as DC-DC converters where the HS2FA operates continuously near its rated current.
Is HS2FA RoHS compliant and halogen-free?
Yes, HS2FA is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official Taiwan Semiconductor documentation. The device uses matte tin-plated leads and UL 94V-0 molding compound, meeting environmental and safety requirements for commercial and industrial electronics without requiring special handling or exemptions.
HS2FA 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2FA FAQ
1.How can I place an order for HS2FA through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2FA 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 HS2FA reliable?
The price and inventory of HS2FA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2FA is usually 5 days.
3.What payment methods are accepted for HS2FA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2FA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2FA?
HS2FA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2FA 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 HS2FA?
For technical support, including HS2FA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2FA requirements.
6.How does Aetrix verify that HS2FA is sourced from the original manufacturer or authorized distributors?
All HS2FA 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 HS2FA meets industry standards.
7.What is the process for return or replacement of HS2FA?
All HS2FA units undergo pre-shipment inspection (PSI). If there is an issue with HS2FA, 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 HS2FA part is unused and in its original packaging.
Return procedure for HS2FA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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