My Inquiry
My Account
Taiwan Semiconductor Corporation SS115LH
- Part No.:
- SS115LH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SS115LH.pdf
- Description:
- 1A, 150V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:2,386
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SS115LH from Taiwan Semiconductor is a 150 V, 1 A surface-mount Schottky barrier rectifier in Sub SMA package, featuring 0.900 V forward voltage at 1.0 A and 25°C, 50 µA reverse leakage at rated VR and 25°C, and AEC-Q101 qualification for automotive-grade reliability in reverse battery protection and DC/DC converters.
For engineers reviewing the SS115LH datasheet, SS115LH pinout, SS115LH application, or SS115LH equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, 30 A non-repetitive surge current capability, junction-to-lead thermal resistance of 45 °C/W, and suitability for high-frequency freewheeling and low-voltage inverter designs requiring low conduction loss.
Technical Context
The SS115LH operates as a single-die Schottky rectifier with guard ring structure for overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 150 V VRRM and 0.750 V typical forward voltage at 0.5 A enable efficient operation in 12–48 V automotive power rails.
Junction temperature range spans –55°C to +150°C, supported by 100 °C/W junction-to-ambient thermal resistance and moisture sensitivity level 1 per J-STD-020. Reverse leakage remains ≤0.5 mA at 125°C and rated VR, critical for thermal-stable freewheeling in engine control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse blocking voltage without breakdown, enabling use in 48 V automotive systems with safety margin. |
| IF | 1 A continuous - Rated average forward current under specified thermal conditions, defining steady-state power handling capability. |
| IFSM | 30 A - Peak non-repetitive surge current (8.3 ms half-sine), supporting transient load dump survival in vehicle electronics. |
| VF @ 1.0 A | 0.900 V max - Forward voltage drop determining conduction loss and self-heating at full rated current. |
| IR @ VR, 25°C | 50 µA max - Reverse leakage current at full rated reverse voltage, directly impacting standby power loss in battery-critical circuits. |
| RθJL | 45 °C/W - Junction-to-lead thermal resistance, enabling direct PCB copper pour heat sinking for compact automotive layout. |
Pinout & Package
Package: Sub SMA - Surface-mount plastic package with cathode band polarity marking, UL 94V-0 molding compound, and JESD201 Class 2 whisker-resistant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in freewheeling or reverse protection configurations. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connected to higher-potential rail (e.g., battery positive) in reverse battery protection or output node in DC/DC converters. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and infotainment with extended temperature and reliability testing. |
| Guard ring structure | Enhances ruggedness against transient overvoltage events such as load dump or ISO 7637-2 pulses without avalanche failure. |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow, eliminating bake requirements and simplifying SMT line integration. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives, supporting environmentally regulated automotive and industrial supply chains. |
Applications
| Reverse Battery Protection | DC/DC Converter Freewheeling |
|---|---|
Use Scenario: Installed between vehicle battery and ECU to block reverse polarity connection during service or jump-start errors. IC Role / Device Role / Timing Role: Unidirectional current valve preventing destructive reverse current flow into sensitive downstream circuitry. Use Value: 150 V VRRM withstands 12 V system transients up to ±100 V; 0.900 V VF minimizes insertion loss in always-on power paths. | Use Scenario: Placed across switching MOSFET in buck converter to recirculate inductor current during off-time. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode enabling high-frequency (>100 kHz) operation with minimal reverse recovery loss. Use Value: Schottky architecture eliminates minority-carrier storage delay; 30 A IFSM handles peak inductor current surges during startup or overload. |
| Automotive LED Lighting | Low-Voltage Inverter Output Stage |
Use Scenario: Used in constant-current LED driver outputs to prevent backfeed from parallel strings or capacitive loads. IC Role / Device Role / Timing Role: Output isolation diode ensuring unidirectional current delivery to LED arrays in headlamp or DRL modules. Use Value: 1 A IF rating supports multi-LED string drive; 50 µA IR at 25°C prevents dark-current-induced dimming in cold ambient conditions. | Use Scenario: Integrated into H-bridge inverter outputs for 12–24 V AC generation in auxiliary power supplies or fan controllers. IC Role / Device Role / Timing Role: Clamp diode managing reactive energy from inductive motor loads during PWM commutation. Use Value: 10,000 V/µs dV/dt rating ensures stable blocking during fast-switching edge transitions; Sub SMA footprint enables dense layout in space-constrained inverters. |
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-1EQH01-M3/5AT | Same Sub SMA package, 150 V VRRM, but 0.82 V VF @ 1 A (25°C); 100 µA IR @ VR, 25°C. | Higher leakage may increase standby loss in always-on automotive modules. | Prefer SS115LH where <50 µA leakage is required at 25°C for ultra-low-power sleep modes. |
| ON Semiconductor SB1150-TB | DO-214AA (SMA) package, 150 V VRRM, 0.89 V VF @ 1 A; RθJA = 110 °C/W vs. SS115LH's 100 °C/W. | Larger footprint and higher thermal resistance limit power density in compact layouts. | Choose SS115LH for Sub SMA size constraint and better thermal performance in thermally dense PCBs. |
Compared with VS-1EQH01-M3/5AT and SB1150-TB, the SS115LH delivers tighter reverse leakage control and superior thermal resistance in the smaller Sub SMA form factor-critical for automotive modules where space, leakage budget, and thermal headroom are simultaneously constrained.
Availability
SS115LH is available at Aetrix Electronics and suitable for reverse battery protection, DC/DC converter freewheeling, and automotive LED lighting requiring stable component supply across production lifecycles.
Supply support for SS115LH 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 SS115LH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability 12–48 V automotive power systems demanding low forward loss, robust surge immunity, and long-term parametric stability.
FAQ
What is the maximum junction temperature rating for the SS115LH?
The SS115LH has a maximum junction temperature (TJ) rating of +150°C, validated per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C, provided thermal design maintains junction temperature below this limit using the specified RθJL = 45 °C/W path.
Does the SS115LH have a defined cathode marking, and how is polarity identified?
Yes, the SS115LH uses a visible cathode band on the device body to indicate polarity, consistent with Sub SMA industry standards. The banded end is the cathode terminal, and the unmarked end is the anode. This marking is verified in the official TSC package outline drawing and matches JESD-22 mechanical inspection requirements.
Is the SS115LH suitable for use in DC/DC converters operating above 500 kHz?
Yes, the SS115LH is suitable for DC/DC converters operating above 500 kHz due to its Schottky architecture, which eliminates minority-carrier storage delay and enables near-zero reverse recovery time. Its 10,000 V/µs dV/dt rating and low junction capacitance (typical 100 pF at 4 V) support stable high-frequency switching without oscillation or excessive ringing.
What packaging format is supplied for the SS115LH, and what is the reel quantity?
The SS115LH is supplied in tape-and-reel packaging per ordering code SS1xLH, with 10,000 units per reel. This format is optimized for automated SMT placement and complies with EIA-481 standards. The Sub SMA carrier tape meets moisture sensitivity level 1 requirements, allowing indefinite dry pack storage prior to assembly.
How does the SS115LH's forward voltage compare to lower-voltage variants like SS14LH in the same family?
The SS115LH exhibits a higher forward voltage than lower-voltage variants: 0.900 V max at 1.0 A and 25°C versus 0.550 V max for SS14LH (40 V). This reflects the trade-off between higher blocking voltage and increased series resistance in Schottky diodes-designers must balance VF loss against required VRRM margin in each application.
SS115LH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS115LH FAQ
1.How can I place an order for SS115LH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS115LH 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 SS115LH reliable?
The price and inventory of SS115LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS115LH is usually 5 days.
3.What payment methods are accepted for SS115LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS115LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS115LH?
SS115LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS115LH 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 SS115LH?
For technical support, including SS115LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS115LH requirements.
6.How does Aetrix verify that SS115LH is sourced from the original manufacturer or authorized distributors?
All SS115LH 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 SS115LH meets industry standards.
7.What is the process for return or replacement of SS115LH?
All SS115LH units undergo pre-shipment inspection (PSI). If there is an issue with SS115LH, 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 SS115LH part is unused and in its original packaging.
Return procedure for SS115LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SS115LH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
