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Taiwan Semiconductor Corporation HS2MFS
- Part No.:
- HS2MFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
HS2MFS.pdf
- Description:
- DIODE GEN PURP 1KV 2A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:15,600
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Product details
Overview
HS2MFS from Taiwan Semiconductor is a 2 A, 1000 V high-efficiency surface-mount fast recovery rectifier in SOD-128 package, featuring 1.48 V max forward voltage at 2.0 A and 25°C, 75 ns reverse recovery time, and 12 pF junction capacitance. It serves as a primary output rectifier in high-frequency switching power supplies requiring low conduction loss and fast turn-off.
For engineers reviewing the HS2MFS datasheet, HS2MFS pinout, HS2MFS application, or HS2MFS equivalent, key selection criteria include peak reverse voltage rating (1000 V), thermal resistance (RθJL = 17 °C/W), surge current capability (120 A @ 1.0 ms), and RoHS/halogen-free compliance for industrial and telecom power designs.
Technical Context
The HS2MFS employs a glass-passivated silicon die optimized for fast recovery (trr ≤ 75 ns) and low leakage (<1 µA @ 25°C, <80 µA @ 125°C), enabling efficient operation in DC–DC converters operating above 100 kHz. Its single-die configuration and SOD-128 low-profile package support high-density PCB layouts with minimal thermal footprint.
Thermal performance is characterized with RθJL = 17 °C/W and RθJA = 53 °C/W on a 5 mm × 5 mm Cu pad, allowing sustained 2 A continuous forward current up to +150°C junction temperature. The cathode-band polarity marking ensures unambiguous orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input stages in 800 V AC-line or 400 V DC bus systems with safety margin |
| IF | 2 A continuous - delivers rated output current without derating up to +125°C ambient on standard PCB |
| trr | 75 ns - enables stable operation in 200–500 kHz SMPS topologies with reduced switching loss |
| VF (max) | 1.70 V @ 2.0 A, 25°C - limits conduction loss to ≤3.4 W at full load, easing thermal management |
| CJ | 12 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high-dV/dt gate-drive or snubber circuits |
| IFSM | 120 A @ 1.0 ms - withstands inrush and fault currents in offline PSUs without bond-wire fusing |
| RθJL | 17 °C/W - enables direct heat transfer to copper pour, reducing need for external heatsinking |
Pinout & Package
SOD-128 surface-mount package: low-profile (1.1 mm height), matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 molding compound, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to output filter capacitor positive rail; polarity-critical for correct rectification |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability under humid environments and repeated thermal cycling |
| Fast recovery (75 ns) | Reduces reverse recovery charge (Qrr) to minimize EMI and switching losses in high-frequency converters |
| Low profile SOD-128 | Enables ≤1.1 mm board height-critical for ultra-thin AC/DC adapters and PoE injectors |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance requirements for industrial shipments |
| Junction temp range | −55°C to +150°C operation supports extended temperature applications including outdoor telecom equipment |
Applications
| AC/DC Power Adapters | Telecom DC–DC Converters |
|---|---|
Use Scenario: 12 V/2 A output stage in compact 24 W wall adapters with universal AC input. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC. Use Value: 1.48 V forward drop at full load reduces conduction loss by ~12% vs. legacy 1N5822, improving efficiency to >88% at 230 V AC. | Use Scenario: Secondary-side rectification in 48 V input, 3.3 V/15 A intermediate bus converter for base station radios. IC Role / Device Role / Timing Role: Fast-recovery diode in synchronous rectifier-assisted topology to minimize body-diode conduction loss. Use Value: 75 ns trr prevents shoot-through during MOSFET dead-time, maintaining >94% efficiency at 300 kHz switching frequency. |
| Industrial Motor Drives | LED Driver Power Supplies |
Use Scenario: Freewheeling path across IGBTs in 200–400 V DC link inverters for HVAC compressors. IC Role / Device Role / Timing Role: Clamp diode providing low-loss return path for inductive kickback energy. Use Value: 120 A surge rating handles repetitive motor stall currents without degradation; 17 °C/W RθJL maintains <125°C junction under 10 s overload. | Use Scenario: Primary-side rectification in constant-current LED drivers for street lighting (100–277 V AC input). IC Role / Device Role / Timing Role: Bridge leg diode in full-wave rectifier feeding PFC controller input. Use Value: 1000 V VRRM accommodates 277 V AC line peaks with 2× safety margin; 12 pF CJ suppresses EMI generation near EMI filter cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | 600 V VRRM, 2 A, 60 ns trr, TO-220AC package | Lower voltage rating; requires redesign for 1000 V systems; higher thermal mass but no SMT compatibility | Select only if system peak reverse stress ≤600 V and through-hole assembly is acceptable |
| ES2J | 600 V VRRM, 2 A, 35 ns trr, SMA package, 1.7 V VF | Higher forward drop and lower voltage rating limit use to ≤400 V DC bus; faster recovery but less rugged surge handling | Prefer for low-noise 100–200 kHz flyback outputs where speed outweighs voltage margin |
Compared with STTH2R06 and ES2J, the HS2MFS uniquely combines 1000 V rating, SOD-128 SMT compatibility, and 75 ns recovery-making it the only drop-in solution for space-constrained 800–1000 V peak systems requiring both robustness and high-frequency efficiency.
Availability
HS2MFS is available at Aetrix Electronics and suitable for AC/DC adapters, telecom DC–DC converters, and industrial motor drives requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for HS2MFS 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 global power electronics markets since 1979.
The HS2MFS belongs to TSC's HS2xFS high-voltage fast recovery rectifier family, engineered specifically for high-efficiency, high-density switching power supplies where voltage margin, thermal performance, and SMT manufacturability are critical.
FAQ
What is the maximum junction temperature rating for the HS2MFS?
The HS2MFS has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows continuous 2 A operation in ambient temperatures up to +125°C when mounted on a 5 mm × 5 mm copper pad, as confirmed by RθJA = 53 °C/W thermal characterization. The HS2MFS must not exceed this limit to maintain reliability and parametric stability over lifetime.
Does the HS2MFS have a specified reverse recovery time, and how is it measured?
Yes, the HS2MFS has a reverse recovery time (trr) of ≤75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Taiwan Semiconductor datasheet. This value applies to all variants from HS2JFS through HS2MFS and reflects performance at room temperature; trr increases slightly at elevated junction temperatures but remains within specification up to +150°C.
Is the HS2MFS RoHS compliant and halogen-free?
Yes, the HS2MFS is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The device uses matte tin-plated leads and UL 94V-0 molding compound, and its moisture sensitivity level is rated at Level 1 per J-STD-020-enabling unlimited floor life without dry-pack requirements.
What is the forward voltage of the HS2MFS at 2.0 A and 125°C junction temperature?
The forward voltage (VF) of the HS2MFS is 1.11 V (typical) and 1.23 V (maximum) at IF = 2.0 A and TJ = 125°C, per the Electrical Specifications table in the official datasheet. This elevated VF at high temperature is typical for silicon fast recovery diodes and must be accounted for in thermal design and efficiency calculations for the HS2MFS.
What package type does the HS2MFS use, and what are its mechanical highlights?
The HS2MFS uses the SOD-128 surface-mount package: low-profile (1.1 mm height), glass-passivated chip, matte tin-plated leads solderable per J-STD-002, and polarity indicated by cathode band. Its mechanical data confirms UL 94V-0 flammability rating, JESD 201 Class 2 whisker resistance, and 0.028 g weight-making it suitable for high-volume automated assembly and compact power designs.
HS2MFS 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):
- 1000 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1000 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2MFS FAQ
1.How can I place an order for HS2MFS through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2MFS 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 HS2MFS reliable?
The price and inventory of HS2MFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2MFS is usually 5 days.
3.What payment methods are accepted for HS2MFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2MFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2MFS?
HS2MFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2MFS 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 HS2MFS?
For technical support, including HS2MFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2MFS requirements.
6.How does Aetrix verify that HS2MFS is sourced from the original manufacturer or authorized distributors?
All HS2MFS 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 HS2MFS meets industry standards.
7.What is the process for return or replacement of HS2MFS?
All HS2MFS units undergo pre-shipment inspection (PSI). If there is an issue with HS2MFS, 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 HS2MFS part is unused and in its original packaging.
Return procedure for HS2MFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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