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Taiwan Semiconductor Corporation HS1DFS
- Part No.:
- HS1DFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
HS1DFS.pdf
- Description:
- DIODE GEN PURP 200V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:14,168
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Product details
Overview
HS1DFS from Taiwan Semiconductor is a 1 A, 200 V repetitive peak reverse voltage (VRRM) surface-mount fast recovery rectifier in SOD-128 package, featuring 0.85 V max forward voltage at 1.0 A and 25°C, 50 ns reverse recovery time, and glass passivated junction for reliability in high-efficiency DC/DC converters.
For engineers reviewing the HS1DFS datasheet, HS1DFS pinout, HS1DFS application, or HS1DFS equivalent, key selection criteria include its 200 V VRRM, low 0.85 V VF at rated current, 35 A IFSM surge capability, thermal resistance of 29 °C/W (junction-to-lead), and SOD-128 footprint compatibility with space-constrained power stages.
Technical Context
The HS1DFS is a single-die, unidirectional silicon rectifier optimized for fast switching in high-frequency switching mode power supplies. Its 50 ns trr and low 20 pF junction capacitance minimize switching losses and EMI generation during turn-off transitions.
Designed for operation up to 150°C junction temperature, it delivers stable forward conduction with VF dropping to 0.71 V at 1.0 A and 125°C - enabling thermally robust freewheeling and output rectification in compact, high-density converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum reverse blocking voltage before breakdown; defines usable input/output voltage range in flyback or buck-derived topologies |
| IF | 1 A continuous - steady-state forward current rating; supports typical 5–12 W DC/DC output stages |
| VF @ 1.0 A, 25°C | 0.85 V max - low conduction loss reduces heat generation and improves efficiency at full load |
| trr | 50 ns max - enables operation up to ~2 MHz switching frequencies with minimal reverse recovery loss |
| CJ @ 1 MHz, 4 V | 20 pF - low junction capacitance limits displacement current and capacitive coupling in high-dv/dt environments |
| RθJL | 29 °C/W - enables direct PCB copper pad thermal path for reliable 1 A operation without heatsink |
| IFSM (8.3 ms) | 35 A - withstands inrush and transient overcurrents common during startup or fault conditions |
Pinout & Package
SOD-128 is a low-profile, surface-mount plastic package with gull-wing leads, polarity indicated by cathode band. Leads are matte tin-plated per J-STD-002, moisture sensitivity level 1, UL 94V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential node (e.g., switch node in synchronous buck, transformer secondary center-tap) |
| Cathode | Current exit terminal | Connected to output rail or filter capacitor; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial-grade designs |
| Low profile SOD-128 package | 1.1 mm max height enables ultra-thin power modules and portable DC/DC solutions |
| Fast 50 ns reverse recovery | Reduces switching loss and ringing in high-frequency SMPS, improving efficiency above 500 kHz |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and environmental requirements for consumer, industrial, and telecom end equipment |
Applications
| DC/DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 5–24 V, 1–5 W flyback or forward converters. IC Role / Device Role / Timing Role: Unidirectional current steering diode providing low-loss output conduction path. Use Value: 0.85 V VF minimizes conduction loss; 50 ns trr prevents cross-conduction loss with synchronous MOSFETs. | Use Scenario: Freewheeling path for inductive loads in 200–400 V bus inverters driving motors or solenoids. IC Role / Device Role / Timing Role: Clamp diode providing safe current recirculation during MOSFET/IGBT turn-off. Use Value: 200 V VRRM and 35 A IFSM ensure robust clamping under 200 V bus transients and inductive kickback. |
| High-Frequency Buck Converter | Industrial Power Supply Auxiliary Rail |
Use Scenario: Synchronous rectification replacement in 1–3 A, 12 V input buck regulators operating at 1–2 MHz. IC Role / Device Role / Timing Role: Asynchronous rectifier when synchronous control is unavailable or cost-sensitive. Use Value: 20 pF CJ and 50 ns trr limit high-frequency noise injection into sensitive analog or digital circuitry. | Use Scenario: +5 V or +3.3 V auxiliary supply rectification in programmable logic controllers (PLCs) and industrial HMIs. IC Role / Device Role / Timing Role: Input-stage rectifier converting AC or DC-DC derived AC-like waveforms to stable DC rails. Use Value: 150°C TJMAX and -55°C to +150°C storage range support extended operation in harsh ambient environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR120 | VRRM = 200 V, IF = 1 A, trr = 75 ns, SOD-128 package | Slower recovery increases switching loss above 500 kHz; higher VF (0.95 V typ) reduces efficiency at full load | Acceptable where cost is prioritized over high-frequency efficiency; verify layout compatibility with identical SOD-128 footprint |
| Vishay VS-1EWH02-M3/5A | VRRM = 200 V, IF = 1 A, trr = 35 ns, SMA package (not SOD-128) | Faster recovery but incompatible footprint; requires PCB redesign; higher thermal resistance (RθJA ≈ 75 °C/W) | Only suitable if board rework is feasible; preferred only when <35 ns trr is mandatory and thermal margin allows SMA mounting |
Compared with MUR120 and VS-1EWH02-M3/5A, the HS1DFS offers the optimal balance of 50 ns trr, 0.85 V VF, SOD-128 compatibility, and 29 °C/W RθJL - making it ideal for thermally constrained, high-frequency industrial DC/DC designs requiring drop-in manufacturability.
Availability
HS1DFS is available at Aetrix Electronics and suitable for DC/DC converter output rectification, switching mode inverter freewheeling, and industrial auxiliary power supply applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for HS1DFS 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200 qualified product lines.
The HS1DFS belongs to TSC's HS1xFS fast recovery rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion in industrial, telecom, and consumer power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS1DFS?
The HS1DFS has a maximum repetitive peak reverse voltage (VRRM) of 200 V, as confirmed in the Absolute Maximum Ratings table. This rating defines the highest reverse-biased voltage the device can block continuously without breakdown, and is validated across temperature and lifetime stress testing per JEDEC standards. The HS1DFS must not be operated beyond this voltage in any design using HS1DFS.
What is the forward voltage (VF) of HS1DFS at 1.0 A and 25°C?
The forward voltage (VF) of HS1DFS is 0.85 V maximum at 1.0 A and 25°C, per the Electrical Specifications table. This value represents worst-case conduction loss under nominal conditions and is measured using pulse test (PW = 0.3 ms). At 125°C junction temperature, VF drops to 0.71 V max, confirming negative temperature coefficient behavior typical of silicon PN junctions in HS1DFS.
Does HS1DFS have a specified reverse recovery time (trr)?
Yes, HS1DFS has a specified reverse recovery time (trr) of 50 ns maximum, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is explicitly listed in the Electrical Specifications section and distinguishes HS1DFS as a fast recovery rectifier suitable for switching frequencies up to ~2 MHz. Slower alternatives like MUR120 specify 75 ns, confirming HS1DFS's superior dynamic performance.
What package type does HS1DFS use, and what are its key mechanical attributes?
HS1DFS uses the SOD-128 surface-mount package, confirmed in Mechanical Data and Ordering Information sections. Key attributes include low profile (max 1.1 mm height), matte tin-plated gull-wing leads compliant with J-STD-002, UL 94V-0 molding compound, moisture sensitivity level 1, and cathode polarity indicated by a visible band. The SOD-128 footprint is identical across the HS1xFS family, ensuring layout reuse.
Is HS1DFS RoHS and halogen-free compliant?
Yes, HS1DFS is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section. This compliance is verified through material declarations and third-party testing, supporting use in environmentally regulated markets including EU, China, and Japan. The halogen-free status applies to all package materials and plating layers in HS1DFS, not just the die.
HS1DFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1DFS FAQ
1.How can I place an order for HS1DFS through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1DFS 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 HS1DFS reliable?
The price and inventory of HS1DFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1DFS is usually 5 days.
3.What payment methods are accepted for HS1DFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1DFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1DFS?
HS1DFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1DFS 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 HS1DFS?
For technical support, including HS1DFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1DFS requirements.
6.How does Aetrix verify that HS1DFS is sourced from the original manufacturer or authorized distributors?
All HS1DFS 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 HS1DFS meets industry standards.
7.What is the process for return or replacement of HS1DFS?
All HS1DFS units undergo pre-shipment inspection (PSI). If there is an issue with HS1DFS, 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 HS1DFS part is unused and in its original packaging.
Return procedure for HS1DFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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