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Taiwan Semiconductor Corporation S2DFSH
- Part No.:
- S2DFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
S2DFSH.pdf
- Description:
- 2A, 200V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
S2DFSH from Taiwan Semiconductor is a 2 A, 200 V standard surface-mount silicon rectifier diode in SOD-128 package, featuring glass passivated junction, AEC-Q101 qualification, and 50 A surge current rating; used for freewheeling and snubber functions in automotive DC/DC converters.
For engineers reviewing the S2DFSH datasheet, S2DFSH pinout, S2DFSH application, or S2DFSH equivalent, key selection criteria include repetitive peak reverse voltage (200 V), forward voltage at 2 A (0.98 V typ. @ 25°C), thermal resistance (RθJL = 14 °C/W), junction temperature range (–55 to +150 °C), and moisture sensitivity level (MSL 1).
Technical Context
The S2DFSH is a single-die, unidirectional standard recovery rectifier with cathode-band polarity marking and matte tin-plated leads compliant with J-STD-002 solderability. Its glass passivation ensures stable reverse leakage (<1 µA @ 25°C) and robustness against environmental stress.
Thermal performance is characterized with RθJA = 74 °C/W on a 5 mm × 5 mm Cu pad PCB, enabling reliable operation up to 150 °C junction temperature. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for molded compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage without breakdown |
| IF | 2 A - continuous average forward current rating at TL = 75 °C |
| IFSM | 50 A - non-repetitive surge current (8.3 ms half-sine) for transient protection |
| VF @ 2 A, 25°C | 0.98 V max - forward conduction loss impacting efficiency in low-voltage DC/DC stages |
| RθJL | 14 °C/W - junction-to-lead thermal resistance enabling direct PCB heat transfer |
| TJ Range | –55 to +150 °C - operational junction temperature window supporting under-hood automotive use |
Pinout & Package
Package: SOD-128 - low-profile, surface-mount plastic case with cathode band marking; dimensions per Taiwan Semiconductor outline drawing; weight ≈ 0.027 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load; requires PCB copper area for thermal dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential rail; defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Prevents surface contamination and leakage drift under humidity or bias stress |
| MSL Level 1 | Unlimited floor life before reflow; no baking required prior to assembly |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU |
Applications
| Automotive DC/DC Converters | Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V hybrid vehicle power distribution units. IC Role / Device Role / Timing Role: Freewheeling diode providing current path during high-side switch off-time. Use Value: Low VF (0.98 V max @ 2 A) minimizes conduction loss; 150 °C TJ rating supports engine bay mounting. | Use Scenario: Energy dissipation across switching FETs in industrial motor drives. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback during turn-off transitions. Use Value: 50 A IFSM handles short-duration surges; glass passivation ensures long-term leakage stability. |
| Freewheeling Diodes | Automotive Lighting Systems |
Use Scenario: Back-EMF suppression in solenoid and relay driver modules. IC Role / Device Role / Timing Role: Unidirectional current path preventing voltage reversal across inductive loads. Use Value: SOD-128 footprint enables compact layout; MSL Level 1 simplifies manufacturing flow. | Use Scenario: LED driver output stage in headlamp control units. IC Role / Device Role / Timing Role: Output rectifier converting switched AC-like waveforms to regulated DC. Use Value: AEC-Q101 qualification ensures functional safety compliance; 200 V VRRM accommodates load dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2H100S | 2 A, 100 V Schottky; lower VF (~0.55 V), but lower VRRM and no AEC-Q101 | Not suitable for 200 V+ reverse blocking; limited to low-VIN buck stages | Select only if system VR ≤ 100 V and efficiency > reliability priority |
| ON Semi MUR220 | 2 A, 200 V ultrafast recovery; 35 ns trr, higher VF (~1.15 V), TO-277 package | Better for high-frequency switching; larger footprint and manual assembly incompatible | Choose when EMI reduction via faster recovery outweighs SOD-128 automation benefit |
Compared with STPS2H100S and MUR220, the S2DFSH uniquely balances AEC-Q101 compliance, SOD-128 automated assembly, and 200 V/2 A capability-making it optimal for cost-sensitive, high-volume automotive power modules where reliability and manufacturability are jointly critical.
Availability
S2DFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, snubber circuits, and freewheeling diode applications requiring stable component supply, AEC-Q101 qualification, and SOD-128 surface-mount compatibility.
Supply support for S2DFSH 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 S2DFSH belongs to TSC's S2xFSH standard rectifier family, engineered specifically for high-reliability, surface-mount power conversion in automotive environments where thermal robustness, automated assembly, and qualification compliance are mandatory.
FAQ
What is the maximum junction temperature rating for the S2DFSH?
The S2DFSH has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table. This allows operation in under-hood automotive environments when mounted on appropriate PCB copper area. Derating begins above 75 °C lead temperature, and thermal design must respect RθJL = 14 °C/W to maintain S2DFSH reliability within specification.
Is the S2DFSH suitable for automotive applications?
Yes, the S2DFSH is AEC-Q101 qualified and explicitly listed for automotive applications in its official documentation. It meets JESD201 Class 2 whisker resistance, MSL Level 1 handling, and operates across –55 to +150 °C. These attributes make S2DFSH appropriate for engine control units, body electronics, and lighting systems where automotive-grade reliability is required.
What does the "x" in S2xFSH signify for the S2DFSH?
In the S2xFSH series, the "x" denotes the peak reverse voltage rating: "D" corresponds to 200 V for S2DFSH. Other variants include "G" (400 V), "J" (600 V), "K" (800 V), and "M" (1000 V). This coding is consistent across marking (S2DFH), ordering code (S2DFSH), and datasheet parameter tables-ensuring unambiguous identification of S2DFSH's 200 V rating.
What is the forward voltage of the S2DFSH at rated current?
The S2DFSH exhibits a typical forward voltage of 0.98 V at IF = 2 A and TJ = 25 °C, with a maximum of 1.10 V under same conditions. At elevated temperature (125 °C), VF drops to 0.88 V (typ.) due to semiconductor physics, improving conduction efficiency in hot environments-critical for sustained S2DFSH performance in automotive power stages.
Does the S2DFSH have a defined moisture sensitivity level?
Yes, the S2DFSH is rated Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/60% RH and requires no baking prior to reflow soldering. This eliminates process steps in high-volume SMT lines and directly supports the S2DFSH's target use in automated automotive electronics manufacturing.
S2DFSH 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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
S2DFSH FAQ
1.How can I place an order for S2DFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for S2DFSH 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 S2DFSH reliable?
The price and inventory of S2DFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2DFSH is usually 5 days.
3.What payment methods are accepted for S2DFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2DFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2DFSH?
S2DFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2DFSH 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 S2DFSH?
For technical support, including S2DFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2DFSH requirements.
6.How does Aetrix verify that S2DFSH is sourced from the original manufacturer or authorized distributors?
All S2DFSH 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 S2DFSH meets industry standards.
7.What is the process for return or replacement of S2DFSH?
All S2DFSH units undergo pre-shipment inspection (PSI). If there is an issue with S2DFSH, 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 S2DFSH part is unused and in its original packaging.
Return procedure for S2DFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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