My Inquiry
My Account
Taiwan Semiconductor Corporation SK515C R7G
- Part No.:
- SK515C R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK515C R7G.pdf
- Description:
- DIODE SCHOTTKY 150V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,616
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SK515C R7G from Taiwan Semiconductor is a 5A, 150V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching power supplies with low forward voltage (0.95 V at 5 A, 25°C) and high surge capability (120 A IFSM). It features guard ring overvoltage protection, moisture sensitivity level 1, and RoHS/halogen-free compliance.
For engineers reviewing the SK515C R7G datasheet, SK515C R7G pinout, SK515C R7G application, or SK515C R7G equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, 0.95 V forward drop at rated current, 0.3 mA reverse leakage at 25°C, junction-to-lead thermal resistance of 13°C/W, and suitability for compact, thermally constrained SMPS designs.
Technical Context
The SK515C R7G implements a single-die Schottky structure with platinum-silicide or similar low-barrier metallization to achieve fast recovery (no stored charge), zero reverse recovery time, and minimal switching loss. Its 150 V VRRM rating targets mid-voltage DC-DC converters and offline auxiliary supplies where higher blocking than 100 V devices is required without silicon diode speed penalties.
Thermally, it relies on PCB copper pad conduction (16 mm × 16 mm per JEDEC test board) for heat dissipation, with RθJA = 53°C/W and RθJL = 13°C/W enabling 5 A continuous operation at ≤85°C ambient when properly mounted. The cathode band polarity marking and matte tin-plated leads ensure reliable automated assembly per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse voltage the device blocks reliably in circuit |
| IF | 5 A - Continuous forward current rating under specified thermal conditions |
| VF @ 5A, 25°C | 0.95 V - Forward voltage drop determining conduction loss and thermal load at full load |
| IR @ 150V, 25°C | 0.3 mA - Reverse leakage current affecting standby power and high-impedance node integrity |
| IFSM (8.3ms) | 120 A - Non-repetitive surge current handling capability during power-up or fault events |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance governing heat transfer to PCB copper pad |
| TJ max | 150 °C - Maximum allowable junction temperature defining safe operating area limits |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case with matte tin-plated leads and cathode band polarity indicator. Weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage without derating VRRM |
| Low VF at high IF | 0.95 V @ 5 A enables >92% efficiency in 12 V output SMPS at full load |
| Moisture sensitivity level 1 | No bake requirement before reflow; compatible with standard SMT lines |
| J-STD-201 Class 2 whisker resistance | Ensures long-term solder joint reliability in industrial temperature cycling |
| Halogen-free & RoHS compliant | Meets environmental compliance requirements for EU, China, and global markets |
Applications
| Server PSU Secondary Rectification | Laptop Adapter Output Stage |
|---|---|
Use Scenario: High-density 48 V–12 V intermediate bus converter in 1U server power supply. IC Role / Device Role / Timing Role: Output rectifier replacing synchronous MOSFETs where simplicity and cost outweigh marginal efficiency gain. Use Value: 0.95 V VF minimizes conduction loss at 5 A while DO-214AB footprint supports automated placement and thermal pad routing. | Use Scenario: 19 V/3.42 A output stage in compact wall-mounted laptop adapter. IC Role / Device Role / Timing Role: Primary-side synchronous rectifier alternative in quasi-resonant flyback topology. Use Value: 120 A IFSM withstands startup surges; 13°C/W RθJL allows stable operation on small PCB copper areas. |
| LED Driver Auxiliary Supply | Industrial PLC Power Module |
Use Scenario: Isolated 5 V/1 A auxiliary bias supply for LED string driver ICs. IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback-derived auxiliary winding circuit. Use Value: 0.3 mA IR at 25°C ensures low no-load power draw; guard ring improves surge immunity in unregulated lighting environments. | Use Scenario: 24 V input front-end rectification in DIN-rail mounted programmable logic controller power module. IC Role / Device Role / Timing Role: Input bridge leg component in compact AC-DC conversion stage. Use Value: 150 V VRRM provides margin above 24 V DC + transients; MSL-1 enables direct placement into high-volume industrial SMT lines. |
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-50WQ15 | Same 150 V VRRM, 5 A IF, but VF = 0.82 V @ 5 A; TO-220AC package | Requires through-hole mounting and heatsink; unsuitable for space-constrained SMT designs | Select if thermal budget allows heatsink use and board real estate permits larger footprint |
| ON Semiconductor SB5150 | 150 V VRRM, 5 A IF, VF = 0.92 V @ 5 A; DO-214AB package, same MSL-1 rating | Identical mechanical fit and reflow profile; slightly lower VF reduces conduction loss by ~3% | Drop-in replacement for SK515C R7G where marginal efficiency gain justifies dual-source qualification |
Compared with VS-50WQ15 and SB5150, the SK515C R7G offers optimal balance of SMT compatibility, thermal performance via RθJL = 13°C/W, and proven robustness in high-volume adapter production-making it preferred for compact, lead-free reflow-managed designs where DO-214AB is mandated.
Availability
SK515C R7G is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, and industrial PLC power modules requiring stable component supply, consistent parametric performance, and full traceability across production lots.
Supply support for SK515C R7G 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 power electronics and industrial markets since 1979.
The SK515C R7G belongs to TSC's SK5xC family of Schottky rectifiers engineered specifically for high-frequency, high-efficiency AC-DC and DC-DC conversion in consumer, computing, and industrial power supplies.
FAQ
What is the maximum junction temperature rating for SK515C R7G?
The SK515C R7G has a maximum junction temperature (TJ max) of 150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet revision S2311. This rating defines the upper thermal limit for reliable operation and must be respected in thermal design using the published RθJA = 53°C/W and RθJL = 13°C/W values. Derating curves in Figure 1 confirm 5 A continuous current is sustainable up to 85°C ambient with proper PCB copper area.
Does SK515C R7G support lead-free reflow soldering?
Yes, SK515C R7G supports lead-free reflow soldering per J-STD-002. Its matte tin-plated leads are qualified for peak temperatures up to 260°C, and its moisture sensitivity level is rated MSL-1, meaning no baking is required prior to assembly. The device meets JEDEC J-STD-020 requirements and is compatible with standard Pb-free reflow profiles used in high-volume manufacturing.
What is the reverse leakage current specification for SK515C R7G at elevated temperature?
At TJ = 125°C and VR = 150 V, the SK515C R7G exhibits a maximum reverse leakage current (IR) of 5 mA, as specified in the Electrical Specifications table. This value is critical for standby power calculation in offline converters and confirms stable blocking behavior under worst-case thermal stress, unlike lower-voltage SK5xC variants which specify IR only at 25°C or 100°C.
Is SK515C R7G pin-compatible with other SK5xC series devices?
Yes, all SK5xC devices-including SK515C R7G-share identical DO-214AB (SMC) package dimensions, pinout (anode/cathode), and polarity marking (cathode band). This allows direct substitution within the family when voltage rating and VF requirements align, provided thermal and surge margins are re-verified for the specific application operating conditions.
What does the 'R7G' suffix indicate in SK515C R7G?
The 'R7G' suffix in SK515C R7G denotes Taiwan Semiconductor's tape-and-reel packaging option: R7 indicates 7-inch reel, and G signifies green (halogen-free) molding compound per JEDEC standards. This matches the ordering code SK515C in the DO-214AB package with 3,000 units per reel, as confirmed in the Ordering Information section of the S2311 datasheet.
SK515C R7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 300 µA @ 150 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK515C R7G FAQ
1.How can I place an order for SK515C R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK515C R7G 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 SK515C R7G reliable?
The price and inventory of SK515C R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK515C R7G is usually 5 days.
3.What payment methods are accepted for SK515C R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK515C R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK515C R7G?
SK515C R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK515C R7G 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 SK515C R7G?
For technical support, including SK515C R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK515C R7G requirements.
6.How does Aetrix verify that SK515C R7G is sourced from the original manufacturer or authorized distributors?
All SK515C R7G 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 SK515C R7G meets industry standards.
7.What is the process for return or replacement of SK515C R7G?
All SK515C R7G units undergo pre-shipment inspection (PSI). If there is an issue with SK515C R7G, 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 SK515C R7G part is unused and in its original packaging.
Return procedure for SK515C R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SK515C R7G 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…
