My Inquiry
My Account
Taiwan Semiconductor Corporation SS515FSH
- Part No.:
- SS515FSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
SS515FSH.pdf
- Description:
- 5A, 150V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:13,539
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SS515FSH from Taiwan Semiconductor is a 5A, 150V Schottky barrier surface-mount rectifier in SOD-128 package, featuring 0.81V forward voltage at 5.0A/25°C, 126pF junction capacitance, 110A surge rating, and AEC-Q101 qualification for automotive-grade reliability in DC/DC converters and SMPS.
For engineers reviewing the SS515FSH datasheet, SS515FSH pinout, SS515FSH application, or SS515FSH equivalent, key selection criteria include reverse voltage margin (150V VRRM), thermal resistance (RθJL = 13°C/W), low leakage (<10µA @ 25°C), moisture sensitivity level 1 compliance, and SOD-128 footprint compatibility with automated placement.
Technical Context
The SS515FSH operates as a single-die Schottky rectifier optimized for high-frequency switching applications, leveraging metal–semiconductor junction physics to minimize conduction loss and recovery time. Its 150V peak reverse voltage and 5A average forward current support mid-voltage DC/DC stages where efficiency and thermal management are critical.
Thermal performance is defined by RθJL = 13°C/W and RθJA = 63°C/W on a 5mm × 5mm Cu pad, enabling stable operation up to TJ = 150°C. Reverse leakage remains ≤10µA at 25°C and ≤1mA at 125°C, ensuring low standby power in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse blocking voltage; sets upper limit for input/output rail isolation in 48V–72V bus designs |
| IF | 5 A - Continuous forward current rating; supports sustained load delivery without derating below 100°C ambient on standard PCB |
| VF @ 5A, 25°C | 0.81 V max - Low conduction loss enables >92% efficiency in 12V→5V buck converters at full load |
| IFSM | 110 A - Surge current capability for 8.3ms half-sine; handles cold-start inrush and transient overloads |
| CJ | 126 pF - Junction capacitance at 1MHz/4V; minimizes switching node ringing in >300kHz topologies |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments with proper heatsinking |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct thermal transfer to copper pour or thermal pad on PCB |
Pinout & Package
SOD-128 surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential side of circuit (e.g., switch node in synchronous buck); requires adequate copper area for thermal dissipation |
| Cathode | Forward current exit / reverse voltage reference | Connected to output rail or ground return path; polarity marked by visible band; defines direction of unidirectional conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement before reflow; compatible with standard SMT assembly lines |
| Low VF at high temperature | 0.67V max at 5A/125°C - maintains efficiency during thermal transients in enclosed enclosures |
| Halogen-free construction | Complies with IEC 61249-2-21 - meets environmental compliance for EU and global OEM supply chains |
| High surge current capability | 285A peak for 1.0ms - withstands short-duration line transients without degradation |
Applications
| On-board DC/DC Converter | Automotive Lighting Driver |
|---|---|
Use Scenario: High-density 12V→3.3V/5V conversion in ADAS domain controllers with space-constrained layouts. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck topology, replacing diode in freewheeling path to reduce losses. Use Value: 0.81V VF at 5A lowers conduction loss by ~35% vs. standard silicon diodes, improving thermal margin and system efficiency. | Use Scenario: LED headlamp constant-current driver with PWM dimming and reverse-polarity protection. IC Role / Device Role / Timing Role: Input rectifier and reverse-voltage clamp protecting downstream FET drivers and current regulators. Use Value: 150V VRRM provides 2× margin over 12V automotive battery transients (ISO 7637-2 Pulse 1/2a), ensuring robustness. |
| Industrial SMPS Secondary Side | USB-C PD Adapter Output Stage |
Use Scenario: 24V/48V industrial power supply secondary-side rectification with forced-air cooling. IC Role / Device Role / Timing Role: Main output rectifier in flyback or LLC resonant converter delivering up to 5A continuous load. Use Value: RθJL = 13°C/W enables direct thermal coupling to heatsink via lead frame, reducing junction temperature rise by ~25°C vs. TO-220 alternatives. | Use Scenario: Compact 65W USB-C PD adapter with dual-output (5V/20V) and high-efficiency secondary-side rectification. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in QR flyback, operating at 65–100kHz with minimal dead-time loss. Use Value: 126pF CJ limits capacitive turn-on loss and EMI generation, supporting CISPR-32 Class B compliance without added snubbers. |
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-50SQ040 | 40V VRRM, 5A, 0.52V VF @ 5A - lower voltage rating, lower VF | Not suitable for 150V-referenced circuits; limited to ≤24V output rails | Select only when reverse voltage stress is <45V and lowest conduction loss is prioritized over voltage margin |
| ON Semiconductor SB5150 | 150V VRRM, 5A, 0.85V VF @ 5A, SOD-128 - same voltage/current, slightly higher VF | Compatible footprint and electrical envelope; identical thermal metrics | Drop-in alternative if SS515FSH is unavailable; verify layout clearance for 0.85V vs. 0.81V thermal rise |
Compared with VS-50SQ040 and SB5150, the SS515FSH delivers optimal balance of 150V blocking capability, 0.81V forward drop, and AEC-Q101 qualification-making it uniquely suited for automotive and industrial 48V+ DC/DC systems requiring both reliability and efficiency.
Availability
SS515FSH is available at Aetrix Electronics and suitable for on-board DC/DC converters, automotive lighting drivers, and industrial SMPS requiring stable component supply, AEC-Q101 compliance, and SOD-128 footprint consistency.
Supply support for SS515FSH 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 protection components for automotive, industrial, and consumer markets.
The SS515FSH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-efficiency, high-reliability power conversion in harsh-environment applications including automotive body electronics and industrial power supplies.
FAQ
What is the maximum junction temperature rating for SS515FSH?
The SS515FSH has a maximum junction temperature (TJ) rating of +150°C. This specification allows the device to operate reliably in high-temperature environments such as under-hood automotive locations or enclosed industrial power supplies. Thermal design must ensure that actual junction temperature stays within this limit using the published RθJL = 13°C/W and RθJA = 63°C/W values. The SS515FSH datasheet confirms this rating applies across its full operating range.
Is SS515FSH suitable for automotive applications?
Yes, the SS515FSH is AEC-Q101 qualified, meaning it has passed rigorous stress testing required for automotive electronic components-including high-temperature reverse bias, high-temperature gate bias, and temperature cycling. Its 150V VRRM, low leakage (<10µA at 25°C), and moisture sensitivity level 1 make it appropriate for automotive lighting, ADAS power modules, and infotainment DC/DC converters. The SS515FSH meets these requirements as documented in Taiwan Semiconductor's official qualification report.
What is the forward voltage of SS515FSH at 5A and 125°C?
The SS515FSH exhibits a maximum forward voltage of 0.77V at 5.0A and 125°C, with a typical value of 0.67V under the same conditions. This low VF at elevated temperature ensures stable efficiency during thermal transients and continuous high-load operation. These values are measured per pulse test (PW = 0.3ms) and are specified in the Electrical Specifications table of the SS515FSH datasheet.
Does SS515FSH have halogen-free and RoHS-compliant construction?
Yes, the SS515FSH is halogen-free in accordance with IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound, lead finish, and internal materials meet both environmental standards without exception. This compliance is explicitly stated in the Features section of the SS515FSH datasheet and verified through material declarations provided by Taiwan Semiconductor.
What packaging format is available for SS515FSH?
The SS515FSH is supplied in tape-and-reel packaging with 14,000 units per reel, compatible with high-speed automated pick-and-place equipment. The SOD-128 package uses matte tin-plated leads meeting J-STD-002 solderability requirements. This packaging format supports standard SMT assembly processes without modification. The SS515FSH ordering code and packing details are confirmed in the Ordering Information section of the official datasheet.
SS515FSH 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):
- 150 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 150 V
- Capacitance @ Vr, F:
- 126pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS515FSH FAQ
1.How can I place an order for SS515FSH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS515FSH 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 SS515FSH reliable?
The price and inventory of SS515FSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS515FSH is usually 5 days.
3.What payment methods are accepted for SS515FSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS515FSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS515FSH?
SS515FSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS515FSH 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 SS515FSH?
For technical support, including SS515FSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS515FSH requirements.
6.How does Aetrix verify that SS515FSH is sourced from the original manufacturer or authorized distributors?
All SS515FSH 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 SS515FSH meets industry standards.
7.What is the process for return or replacement of SS515FSH?
All SS515FSH units undergo pre-shipment inspection (PSI). If there is an issue with SS515FSH, 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 SS515FSH part is unused and in its original packaging.
Return procedure for SS515FSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SS515FSH 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…
