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Taiwan Semiconductor Corporation SS310FSH
- Part No.:
- SS310FSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
SS310FSH.pdf
- Description:
- 3A, 100V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:6,287
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Product details
Overview
SS310FSH from Taiwan Semiconductor is a 3A, 100V AEC-Q101-qualified Schottky barrier rectifier in SOD-128 package, featuring 0.76V max forward voltage at 3.0A/25°C, 1mA reverse leakage at 125°C, and 86pF junction capacitance at 1MHz/4V - optimized for high-efficiency DC/DC conversion in automotive and industrial power supplies.
For engineers reviewing the SS310FSH datasheet, SS310FSH pinout, SS310FSH application, or SS310FSH equivalent, key selection criteria include its 100V VRRM, thermal resistance (RθJL = 16°C/W), moisture sensitivity level 1 rating, RoHS/halogen-free compliance, and suitability for automated SMT assembly in space-constrained power stages.
Technical Context
The SS310FSH implements a single-die Schottky junction with low-barrier metal-semiconductor interface to minimize forward conduction loss while maintaining 100V peak reverse blocking capability. Its 150°C maximum junction temperature and JESD201 Class 2 whisker resistance support operation in under-hood automotive environments.
Thermal performance is characterized on a 5mm × 5mm copper pad PCB: RθJA = 71°C/W (ambient), RθJC = 14°C/W (case), enabling reliable 3A continuous current delivery without forced air cooling in typical board-level layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports input rails up to 70 VDC with 30% safety margin in SMPS designs |
| IF | 3 A continuous - delivers full rated current without derating at TA ≤ 75°C on standard PCB |
| VF (max) | 0.88 V at 3.0A/25°C - reduces conduction loss vs. silicon diodes, improving efficiency in 12–48V DC/DC converters |
| IR (max) | 10 µA at 25°C, 1 mA at 125°C - enables low standby power in always-on automotive modules |
| CJ | 86 pF at 1MHz/4V - limits switching noise and EMI in high-frequency (>300 kHz) converter topologies |
| RθJL | 16 °C/W - allows direct thermal coupling to PCB copper for passive heatsinking in compact layouts |
| Polarity | Cathode band marked - ensures unambiguous orientation during automated placement and visual inspection |
Pinout & Package
Package: SOD-128 surface-mount plastic case with matte tin-plated leads (J-STD-002 compliant), UL 94V-0 molding compound, and 0.028g mass. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper area for thermal dissipation |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential output rail; polarity must match PCB silkscreen and stencil design to prevent assembly errors |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT lines without dry-pack handling |
| High surge capability (IFSM = 70A) | Withstands 8.3ms half-sine surges common in load-dump transients and inrush events |
| Halogen-free (IEC 61249-2-21) | Meets automotive OEM environmental requirements and simplifies end-of-life material recovery |
| Low RθJL (16°C/W) | Enables >2.5W power dissipation with <40°C rise above lead temperature in typical mounting |
Applications
| Automotive On-Board Charger | Industrial DC/DC Converter |
|---|---|
Use Scenario: Rectification stage in 12V-to-5V/3.3V isolated flyback supply powering infotainment ECUs. IC Role / Device Role / Timing Role: Output rectifier replacing fast-recovery diode to reduce losses and improve thermal margin. Use Value: 0.76V VF at 3A cuts conduction loss by ~40% vs. comparable Si diode, lowering board temperature rise by ≥8°C. | Use Scenario: Secondary-side synchronous rectifier replacement in telecom 48V-input buck converter. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous topology where gate drive complexity must be minimized. Use Value: 86pF CJ limits capacitive turn-off current, reducing EMI filter component count and layout area. |
| LED Driver Power Supply | USB-C PD Adapter Output Stage |
Use Scenario: Output rectification in constant-current LED driver for commercial lighting fixtures. IC Role / Device Role / Timing Role: High-efficiency freewheel path during MOSFET off-time in boost topology. Use Value: 1mA IR at 125°C ensures stable current regulation over full ambient range without thermal runaway risk. | Use Scenario: Secondary-side rectifier in multi-output USB-C PD adapter delivering 20V/5A. IC Role / Device Role / Timing Role: Main output rectifier handling continuous 3A load with minimal voltage drop. Use Value: SOD-128 footprint enables dense layout while maintaining 100V VRRM headroom for 20V output with transient spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EYH01-M3/45 | Same 100V VRRM, 3A IF, but TO-277 package (larger footprint, higher RθJA = 90°C/W) | Requires PCB redesign due to different outline and thermal pad; less suitable for ultra-thin adapters | Choose when higher surge rating (100A IFSM) outweighs size constraints |
| ON Semiconductor SB3100 | SOD-123 package (smaller), 100V VRRM, but 0.85V VF max at 3A - 9% higher conduction loss | Limited to lower-power applications (<2W dissipation) due to inferior thermal resistance | Acceptable for cost-sensitive consumer designs where 150°C TJ margin is not required |
Compared with VS-3EYH01-M3/45 and SB3100, the SS310FSH provides optimal balance of low-profile SOD-128 packaging, AEC-Q101 qualification, and industry-leading 0.76V forward voltage - making it preferred for automotive and thermally constrained industrial power supplies where board space and efficiency are co-prioritized.
Availability
SS310FSH is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC/DC converters, and LED driver power supplies requiring stable component supply across extended product lifecycles.
Supply support for SS310FSH 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 automotive, industrial, and consumer markets since 1979.
The SS310FSH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-reliability, high-efficiency power conversion in automotive and harsh-environment industrial systems.
FAQ
What is the maximum junction temperature rating for SS310FSH?
The SS310FSH has a maximum junction temperature (TJ) rating of +150°C, validated per AEC-Q101 stress testing. This allows operation in under-hood automotive environments and high-temperature industrial enclosures when mounted on a 5mm × 5mm Cu pad. Derating begins above 75°C ambient, with 3A continuous current supported up to that point. The SS310FSH maintains stable electrical parameters across its full -55°C to +150°C junction range.
Is SS310FSH suitable for reflow soldering in lead-free processes?
Yes, the SS310FSH is qualified for lead-free reflow soldering per J-STD-020, with moisture sensitivity level (MSL) 1 - meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the UL 94V-0 molding compound withstands peak temperatures up to 260°C for 30 seconds. The SS310FSH has been verified in standard Pb-free profiles with 235–245°C liquidus time.
How does the forward voltage of SS310FSH compare at elevated temperatures?
At 125°C junction temperature, the SS310FSH exhibits reduced forward voltage: 0.63V max at 3.0A, down from 0.76V at 25°C. This negative temperature coefficient improves system efficiency at high operating temperatures and prevents thermal runaway. Measured data shows 0.57V typ at 1.5A/125°C, confirming stable conduction behavior across the full automotive temperature range. The SS310FSH's VF drift is fully characterized in the official datasheet curves.
What is the surge current rating for SS310FSH and how is it tested?
The SS310FSH is rated for 70A peak surge current (IFSM) under 8.3ms half-sine wave conditions, per JEDEC standards. It also supports 170A for 1.0ms pulses. This rating is validated using standardized surge waveform generators and verified during AEC-Q101 qualification. The SS310FSH's robust metallization and die attach enable repeatable surge handling without parameter shift, making it suitable for automotive load-dump protection and industrial motor drive freewheeling.
Does SS310FSH have halogen-free and RoHS compliance documentation?
Yes, the SS310FSH is certified halogen-free per IEC 61249-2-21 and RoHS compliant (2011/65/EU). TSC provides full material declarations and test reports upon request, including bromine/chlorine content below 900 ppm and antimony/arsenic below 1000 ppm. These certifications are integral to the SS310FSH's AEC-Q101 qualification and are confirmed in TSC's official product change notices and compliance portal.
SS310FSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 880 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Capacitance @ Vr, F:
- 54pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS310FSH FAQ
1.How can I place an order for SS310FSH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS310FSH 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 SS310FSH reliable?
The price and inventory of SS310FSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS310FSH is usually 5 days.
3.What payment methods are accepted for SS310FSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS310FSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS310FSH?
SS310FSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS310FSH 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 SS310FSH?
For technical support, including SS310FSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS310FSH requirements.
6.How does Aetrix verify that SS310FSH is sourced from the original manufacturer or authorized distributors?
All SS310FSH 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 SS310FSH meets industry standards.
7.What is the process for return or replacement of SS310FSH?
All SS310FSH units undergo pre-shipment inspection (PSI). If there is an issue with SS310FSH, 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 SS310FSH part is unused and in its original packaging.
Return procedure for SS310FSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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