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Taiwan Semiconductor Corporation SS115LSH
- Part No.:
- SS115LSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
SS115LSH.pdf
- Description:
- DIODE SCHOTTKY 150V 1A SOD123HE
- Quantity:
- Payment:
- Shipping:
Inventory:19,770
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Product details
Overview
SS115LSH from Taiwan Semiconductor is a 150 V, 1 A Schottky barrier surface-mount rectifier in SOD-123HE package, featuring 0.90 V forward voltage at 1.0 A and 22 pF junction capacitance at 1 MHz/4 V, optimized for reverse battery protection and DC/DC converter freewheeling in automotive lighting systems.
For engineers reviewing the SS115LSH datasheet, SS115LSH pinout, SS115LSH application, or SS115LSH equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, 30 A surge capability, AEC-Q101 qualification, low-profile <0.85 mm height, and JESD201 Class 2 whisker resistance - critical for high-reliability automotive power interfaces.
Technical Context
The SS115LSH implements a single-die Schottky junction with metal–semiconductor contact enabling low VF and fast switching, operating up to +150°C junction temperature. Its 22 pF capacitance at 1 MHz supports high-frequency rectification in compact DC/DC topologies.
Thermal performance is defined by RθJC = 25°C/W and RθJA = 70°C/W, enabling 1 A continuous conduction without forced cooling in standard PCB layouts. The cathode band polarity marking and matte tin-plated leads ensure compatibility with automated reflow assembly per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 1 A - continuous forward current rating at TA = 25°C |
| IFSM | 30 A - peak surge current tolerance for 8.3 ms half-sine wave |
| VF @ 1.0 A | 0.90 V - forward voltage drop determining conduction loss in power path |
| CJ | 22 pF - junction capacitance at 1 MHz/4 V, limiting high-frequency switching noise |
| TJ max | +150°C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 70°C/W - thermal resistance from junction to ambient, defining natural-convection derating |
Pinout & Package
SOD-123HE is a compact surface-mount plastic package with 2 terminals, 0.85 mm max profile, UL 94V-0 molding compound, and cathode polarity indicated by a band on the anode-side end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of load or source in freewheeling/reverse-protection paths |
| Cathode | Current exit point during forward conduction; reverse-blocking terminal | Marked with band; tied to higher-potential rail (e.g., battery positive) in reverse-battery protection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow, simplifying SMT line handling |
| Low-profile SOD-123HE package | 0.85 mm height enables use in space-constrained modules such as LED driver PCBs |
| High surge current capability | 30 A IFSM withstands load dump transients in 12 V vehicle electrical systems |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally regulated production |
Applications
| Reverse Battery Protection | Automotive LED Lighting |
|---|---|
Use Scenario: Prevents damage to vehicle electronics when battery terminals are accidentally reversed during service or jump-starting. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed in series with main power input rail. Use Value: SS115LSH's 150 V VRRM exceeds typical 12 V system transients (up to ±100 V), while 0.90 V VF minimizes voltage drop and heat generation at 1 A load currents. | Use Scenario: Powering headlamp or DRL modules requiring stable DC supply under varying alternator output and engine cranking conditions. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED driver switch node to clamp flyback energy. Use Value: SS115LSH's 22 pF CJ and fast recovery reduce switching noise and EMI, while 30 A IFSM handles transient surges during cold-cranking. |
| DC/DC Converter Output Rectification | Industrial 24 V Power Supply Input Stage |
Use Scenario: Secondary-side rectification in isolated buck-derived converters delivering 3.3–12 V at up to 1 A for microcontroller or sensor subsystems. IC Role / Device Role / Timing Role: Low-loss synchronous rectifier replacement in cost-sensitive non-isolated designs. Use Value: SS115LSH's 0.90 V VF at 1 A yields ~10% lower conduction loss than comparable 100 V Schottkys, improving efficiency in thermally limited enclosures. | Use Scenario: Input-stage reverse polarity protection for DIN-rail mounted 24 V industrial power supplies used in PLC or I/O modules. IC Role / Device Role / Timing Role: Series-connected protection diode on main AC/DC output rail. Use Value: SS115LSH's +150°C TJ max and 70°C/W RθJA allow reliable operation in unventilated control cabinets where ambient reaches 70°C. |
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-1EQH03-M3/5A | 100 V VRRM, 0.55 V VF @ 1 A, SOD-123 package, no AEC-Q101 qualification | Limited to ≤100 V systems; unsuitable for load-dump tolerant reverse protection in 12 V automotive | Select only if VRRM margin >50 V is unnecessary and AEC-Q101 is not required |
| ON Semiconductor SB1150-T | 150 V VRRM, 0.89 V VF @ 1 A, SOD-123 package, AEC-Q101 qualified, 25 pF CJ | Slightly higher capacitance reduces high-frequency noise suppression vs. SS115LSH | Preferred when board-level EMI filtering is less critical than absolute lowest VF |
Compared with VS-1EQH03-M3/5A and SB1150-T, the SS115LSH delivers superior high-voltage margin and lower junction capacitance for noise-sensitive automotive DC/DC stages, while maintaining AEC-Q101 compliance and industry-standard SOD-123HE footprint compatibility.
Availability
SS115LSH is available at Aetrix Electronics and suitable for reverse battery protection, automotive LED lighting, and DC/DC converter freewheeling requiring stable component supply across automotive Tier-1 production, industrial control module builds, and embedded power subsystem development.
Supply support for SS115LSH 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 SS115LSH belongs to TSC's AEC-Q101-qualified SOD-123HE Schottky rectifier family, engineered specifically for high-reliability 12 V/24 V automotive power interfaces where low forward drop, surge robustness, and thermal resilience are mandatory.
FAQ
What is the maximum junction temperature rating for the SS115LSH?
The SS115LSH has a maximum junction temperature (TJ) rating of +150°C, verified per AEC-Q101 stress testing. This allows the SS115LSH to operate reliably in under-hood automotive environments where ambient temperatures exceed 85°C, provided thermal design respects its RθJA = 70°C/W limit and PCB copper area meets recommended pad layout guidelines.
Is the SS115LSH pin-compatible with other SOD-123HE Schottky diodes?
Yes - the SS115LSH uses the industry-standard SOD-123HE footprint with anode and cathode terminals matching JEDEC MO-203-AB mechanical dimensions. Its 2.60 mm × 1.40 mm body and 0.85 mm max height ensure direct placement compatibility with other SOD-123HE rectifiers, including those from Vishay, ON Semiconductor, and Diodes Inc., provided voltage and thermal specs align.
Does the SS115LSH meet automotive qualification standards?
Yes - the SS115LSH is explicitly AEC-Q101 qualified, covering stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (UHAST). This certification confirms suitability for automotive power management functions such as reverse battery protection and LED driver freewheeling, as documented in Taiwan Semiconductor's B2212 specification release.
What is the forward voltage of the SS115LSH at 1.0 A and 25°C?
The SS115LSH exhibits a maximum forward voltage (VF) of 0.90 V at IF = 1.0 A and TJ = 25°C, measured under pulsed conditions (PW = 0.3 ms). This value defines conduction loss in power paths; at elevated junction temperatures, VF decreases slightly due to Schottky barrier physics, but system-level thermal design must maintain TJ ≤ +150°C to avoid degradation.
How does the SS115LSH perform in reverse leakage at high temperature?
At rated reverse voltage (150 V) and TJ = 125°C, the SS115LSH specifies a maximum reverse current (IR) of 0.5 mA. This leakage level remains stable over time and supports reliable reverse-battery protection in hot under-hood environments, where competing 100 V Schottkys may exceed 2 mA at same conditions - increasing standby power loss and thermal stress.
SS115LSH 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):
- 150 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 150 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HE
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS115LSH FAQ
1.How can I place an order for SS115LSH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS115LSH 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 SS115LSH reliable?
The price and inventory of SS115LSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS115LSH is usually 5 days.
3.What payment methods are accepted for SS115LSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS115LSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS115LSH?
SS115LSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS115LSH 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 SS115LSH?
For technical support, including SS115LSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS115LSH requirements.
6.How does Aetrix verify that SS115LSH is sourced from the original manufacturer or authorized distributors?
All SS115LSH 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 SS115LSH meets industry standards.
7.What is the process for return or replacement of SS115LSH?
All SS115LSH units undergo pre-shipment inspection (PSI). If there is an issue with SS115LSH, 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 SS115LSH part is unused and in its original packaging.
Return procedure for SS115LSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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