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Taiwan Semiconductor Corporation SS16LS
- Part No.:
- SS16LS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
SS16LS.pdf
- Description:
- 1A, 60V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
SS16LS from Taiwan Semiconductor is a 1A, 60V Schottky barrier surface-mount rectifier in SOD-123HE package, featuring 0.70V forward voltage at 1.0A/25°C, 48pF junction capacitance, 30A peak surge current, and 125°C maximum junction temperature. It serves as a low-loss freewheeling or output rectifier in compact DC-DC converters.
For engineers reviewing the SS16LS datasheet, SS16LS pinout, SS16LS application, or SS16LS equivalent, key selection criteria include its 60V VRRM, low-profile SOD-123HE footprint (<0.85mm height), moisture sensitivity level 1 rating, RoHS/halogen-free compliance, and thermal resistance (RθJA = 70°C/W).
Technical Context
The SS16LS uses a single-die Schottky junction optimized for high-efficiency switching applications. Its 60V reverse blocking capability and 0.70V forward drop at rated current enable reduced conduction losses versus standard PN diodes in 24–48V input DC-DC stages.
Thermally, it supports operation up to 125°C junction temperature with RθJC = 25°C/W and RθJA = 70°C/W. The SOD-123HE package features matte tin-plated leads compliant with J-STD-002 and JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse voltage; sets upper limit for DC-DC output rectification in 48V systems |
| IF | 1 A - Continuous forward current rating; defines steady-state power handling in compact layouts |
| VF @ 1.0A | 0.70 V - Forward voltage at full rated current; directly determines conduction loss (0.7W at 1A) |
| IFSM | 30 A - Non-repetitive surge current (8.3ms); supports transient overload tolerance during startup or fault |
| CJ | 48 pF - Junction capacitance at 1MHz/4V; impacts high-frequency switching noise and EMI filtering design |
| TJ max | 125 °C - Maximum operating junction temperature; constrains thermal design margin in sealed enclosures |
| RθJA | 70 °C/W - Junction-to-ambient thermal resistance; used to calculate board-level temperature rise under 1A load |
Pinout & Package
Package: SOD-123HE - Surface-mount plastic package with cathode band marking, 0.85mm max profile, UL 94V-0 molding compound, and 0.021g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires thermal relief on PCB pour |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail; critical for polarity-sensitive layout and ESD protection placement |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD-123HE package | Height ≤ 0.85 mm enables ultra-thin power modules and space-constrained adapters |
| Moisture sensitivity level 1 | No baking required before reflow; simplifies SMT line handling and reduces process risk |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS; supports green manufacturing and export requirements |
| High surge current capability | 30A IFSM withstands inrush and short-circuit transients without degradation |
| Matte tin-plated leads | Ensures reliable solderability per J-STD-002; prevents dewetting during lead-free reflow |
Applications
| AC-DC Adapter Output Rectification | Buck Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in 5–24W wall adapters with universal AC input. IC Role / Device Role / Timing Role: Unidirectional current path converting transformer secondary AC to regulated DC output. Use Value: 0.70V VF minimizes conduction loss at 1A load, improving efficiency over 0.9V alternatives by ~200mW. | Use Scenario: Freewheeling path in 12V→5V/1A synchronous buck regulator with external MOSFET control. IC Role / Device Role / Timing Role: Provides current continuity during high-side MOSFET off-time; clamps inductive kickback. Use Value: 48pF CJ limits reverse recovery ringing, reducing EMI filter component count in compact designs. |
| USB-C Power Delivery Sink Protection | Industrial Sensor Node Power Rail Clamp |
Use Scenario: Reverse polarity and overvoltage clamp on 20V PPS input of USB-C PD sink devices. IC Role / Device Role / Timing Role: Standby-blocking diode preventing backfeed into upstream source during fault conditions. Use Value: 60V VRRM safely covers full USB-C PD 3.0 PPS range (3.3–21V) with 2× margin against transients. | Use Scenario: Input rail protection for battery-powered wireless sensor nodes with 3.3V/5V LDO regulators. IC Role / Device Role / Timing Role: Prevents reverse current flow from backup capacitor during main supply dropout. Use Value: 125°C TJ max allows operation in unventilated enclosures near heat-generating RF modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor SS16HE | VF = 0.75V @ 1A (vs. 0.70V); same SOD-123HE package and 60V rating | Slightly higher conduction loss; identical thermal and layout compatibility | Preferred where ON Semi sourcing is mandated; verify VF impact on thermal budget |
| Vishay VS-1EQH06-M3/5AT | 60V VRRM, 1A IF, but in SMA package (higher profile, 2.2mm vs. 0.85mm) | Requires PCB footprint redesign; higher RθJA (~100°C/W) limits power density | Only suitable when SOD-123HE is unavailable; expect +15°C junction rise at same current |
Compared with SS16HE and VS-1EQH06-M3/5AT, the SS16LS delivers the lowest forward voltage in its class within the ultra-low-profile SOD-123HE package, making it optimal for thermally constrained, space-limited adapter and DC-DC designs where 0.85mm height is mandatory.
Availability
SS16LS is available at Aetrix Electronics and suitable for AC-DC adapters, buck converter freewheeling paths, and USB-C PD input protection requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for SS16LS 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, analog ICs, and LED drivers, headquartered in Hsinchu, Taiwan.
The SS16LS belongs to TSC's SS1xLS Schottky rectifier family, engineered for high-efficiency, low-profile power conversion in consumer and industrial SMPS applications where thermal and spatial constraints dominate design decisions.
FAQ
What is the maximum junction temperature rating for SS16LS?
The SS16LS has a maximum junction temperature (TJ) rating of 125°C, as specified in the Absolute Maximum Ratings table. This value applies under continuous DC forward current conditions and must be respected in thermal design. Derating curves in the datasheet show allowable current reduction above 25°C ambient, and operation beyond 125°C risks irreversible parametric shift or failure. The SS16LS is not rated for 150°C operation-only higher-voltage variants like SS115LS carry that rating.
Does SS16LS have a documented moisture sensitivity level (MSL) rating?
Yes, the SS16LS is rated MSL Level 1 per J-STD-020, meaning it is not moisture-sensitive and does not require dry-packaging or baking prior to surface-mount reflow. This simplifies handling in automated assembly lines and eliminates floor-life tracking. The SOD-123HE package construction and molding compound contribute to this robust MSL classification, confirmed in the Mechanical Data section of the official TSC datasheet.
What is the forward voltage specification for SS16LS at 1.0A and 25°C?
The SS16LS exhibits a maximum forward voltage (VF) of 0.70 V at IF = 1.0 A and TJ = 25°C, as stated in the Electrical Specifications table under "MAX" column. This value is measured using pulse test conditions (PW = 0.3 ms) to minimize self-heating. At higher junction temperatures (e.g., 125°C), VF decreases slightly due to Schottky physics, but system-level design should use the 25°C max value for worst-case loss calculation.
Is SS16LS compatible with lead-free reflow soldering processes?
Yes, the SS16LS features matte tin-plated leads qualified per J-STD-002 for solderability, supporting both SnPb and lead-free (e.g., SAC305) reflow profiles. Its SOD-123HE package is rated for peak reflow temperatures up to 260°C, consistent with IPC/JEDEC J-STD-020 requirements. No special pre-baking or flux selection is needed beyond standard lead-free SMT guidelines.
What is the junction capacitance (CJ) of SS16LS and how is it measured?
The SS16LS has a typical junction capacitance (CJ) of 48 pF, measured at 1 MHz and VR = 4.0 V with a 50 mVp-p signal, as specified in the Electrical Specifications table. This parameter reflects the diode's capacitive behavior under reverse bias and directly influences high-frequency switching noise and snubber design. Lower CJ versus higher-voltage variants (e.g., 28 pF for SS110LS) confirms the trade-off between blocking voltage and speed in the SS1xLS family.
SS16LS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123H
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 400 µA @ 60 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HE
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS16LS FAQ
1.How can I place an order for SS16LS through Aetrix?
Please submit a Request for Quotation (RFQ) for SS16LS 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 SS16LS reliable?
The price and inventory of SS16LS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS16LS is usually 5 days.
3.What payment methods are accepted for SS16LS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS16LS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS16LS?
SS16LS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS16LS 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 SS16LS?
For technical support, including SS16LS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS16LS requirements.
6.How does Aetrix verify that SS16LS is sourced from the original manufacturer or authorized distributors?
All SS16LS 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 SS16LS meets industry standards.
7.What is the process for return or replacement of SS16LS?
All SS16LS units undergo pre-shipment inspection (PSI). If there is an issue with SS16LS, 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 SS16LS part is unused and in its original packaging.
Return procedure for SS16LS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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