My Inquiry
My Account
Taiwan Semiconductor Corporation SR815
- Part No.:
- SR815
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR815.pdf
- Description:
- DIODE SCHOTTKY 150V 8A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,317
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SR815 from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 150V Schottky barrier rectifier in DO-201AD package, featuring 1.02V forward voltage at 8A/25°C, 100µA reverse leakage at rated VR and 150A surge capability - deployed in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the SR815 datasheet, SR815 pinout, SR815 application, or SR815 equivalent, key selection criteria include its 150V VRRM, 125–150°C junction temperature range, guard-ring overvoltage protection, and DO-201AD mechanical compatibility with high-reliability power conversion layouts.
Technical Context
This single-die Schottky rectifier uses a planar epitaxial structure with integrated guard ring to sustain repetitive 150V reverse voltage while maintaining low conduction loss. Its 1.02V VF at 8A and 25°C enables high-efficiency operation in continuous conduction mode topologies.
Thermal resistance RθJA is 40°C/W, supporting 8A average forward current up to 125°C ambient when mounted on standard PCB copper area. dv/dt rating of 10,000 V/µs ensures robustness against fast-switching transients in synchronous rectifier circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF | 8 A - Continuous average forward current rating at specified thermal conditions |
| IFSM | 150 A - Peak non-repetitive surge current (8.3ms half-sine) for transient overload handling |
| VF @ 8A, 25°C | 1.02 V - Forward voltage drop determining conduction loss and thermal load in power stage |
| IR @ VR=150V, 25°C | 100 µA - Reverse leakage current affecting standby power and voltage hold-up performance |
| TJ max | 150 °C - Maximum allowable junction temperature enabling extended operation in high-ambient environments |
| dv/dt | 10,000 V/µs - Critical rate of rise of off-state voltage defining immunity to switching-induced false turn-on |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; leads are pure tin plated, solderable per J-STD-002 and whisker-tested to JESD201 Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential side of power path; requires thermal relief pad for 8A continuous routing |
| Cathode (lead with band) | Forward current exit / reverse blocking terminal | Connected to output rail or switching node; polarity must be observed to prevent catastrophic failure |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics requiring stress-tested reliability under temperature cycling, humidity, and vibration |
| Guard ring structure | Prevents edge breakdown at 150V VRRM, improving long-term stability in noisy DC bus environments |
| Low VF (1.02V @ 8A) | Reduces conduction loss by ~15% vs. comparable 150V Si diodes, lowering heatsink requirements in space-constrained adapters |
| 150A IFSM | Withstands inrush currents from large bulk capacitors in offline SMPS without degradation |
| RoHS + halogen-free | Complies with IEC 61249-2-21 and global environmental directives for automotive and industrial end equipment |
Applications
| Automotive DC-DC Converter | Industrial SMPS Secondary Side |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in engine control unit (ECU) with 8A output requirement. IC Role / Device Role / Timing Role: Output rectifier replacing synchronous MOSFET in cost-sensitive designs where gate drive complexity must be minimized. Use Value: Enables AEC-Q101-compliant operation with 1.02V VF limiting power loss to ≤8.2W at full load, reducing thermal stress on PCB. | Use Scenario: Secondary-side rectification in 200W telecom open-frame SMPS operating at 100kHz. IC Role / Device Role / Timing Role: Uncontrolled rectifier in center-tapped or full-wave configuration delivering regulated 12V output. Use Value: 150A surge rating handles cold-start surges; 40°C/W RθJA allows direct mounting on 2oz copper without external heatsink. |
| High-Efficiency Adapter | Renewable Energy Charge Controller |
Use Scenario: 65W laptop adapter with universal AC input and active clamp flyback topology. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode during transformer reset phase. Use Value: 100µA reverse leakage at 150V minimizes no-load power consumption below 75mW, meeting DOE VI efficiency standards. | Use Scenario: Battery charging circuit in off-grid solar system converting 48V PV array output to 24V battery bank. IC Role / Device Role / Timing Role: Isolation diode preventing reverse current flow from battery to PV during night or low-light conditions. Use Value: Guard ring ensures stable 150V blocking under partial shading transients; 125–150°C TJ range supports uncooled outdoor enclosure operation. |
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-8EWH15 | Same DO-201AD package, 8A/150V, but VF = 0.95V @ 8A (lower loss), IR = 200µA @ 150V (higher leakage) | Better efficiency in thermally constrained designs; less suitable for ultra-low standby power systems | Prefer VS-8EWH15 when conduction loss dominates thermal budget, but verify leakage impact on light-load regulation |
| ON Semiconductor MUR815 | Ultrafast recovery silicon diode (not Schottky), 8A/150V, VF = 1.25V, trr = 75ns, higher switching loss | Used where reverse recovery noise must be avoided (e.g., EMI-sensitive RF subsystems), despite lower efficiency | Select MUR815 only if Schottky reverse leakage causes instability or if design requires controlled soft recovery |
Compared with VS-8EWH15 and MUR815, the SR815 delivers balanced trade-offs: lower leakage than VS-8EWH15 for standby-critical applications, and significantly lower VF than MUR815 for improved thermal performance in high-duty-cycle converters.
Availability
SR815 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS secondary-side rectification, and high-efficiency AC-DC adapters requiring stable component supply and AEC-Q101 compliance.
Supply support for SR815 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 SR802–SR820 series was designed specifically for high-reliability, medium-current Schottky rectification in automotive power modules and industrial switch-mode supplies where AEC-Q101 validation and guard-ring robustness are mandatory.
FAQ
What is the maximum junction temperature rating for SR815?
The SR815 has a maximum junction temperature (TJ) rating of 150°C, with operational range from –55°C to +150°C. This extended rating enables use in under-hood automotive applications and high-ambient industrial environments where standard 125°C Schottky rectifiers would require derating or forced cooling. The SR815 maintains specified electrical parameters within this full range.
Is SR815 pin-compatible with other parts in the SR8xx family?
Yes, all SR8xx devices including SR815 share identical DO-201AD package dimensions, lead spacing, and axial pinout - anode and cathode terminals are physically interchangeable across the family. However, voltage ratings (VRRM) and forward voltage (VF) differ per variant, so electrical substitution requires verification of circuit stress margins and thermal performance.
Does SR815 meet AEC-Q101 requirements?
Yes, SR815 is explicitly qualified to AEC-Q101 Rev D for stress testing including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress test. This qualification applies to the "H"-suffixed ordering codes (e.g., SR815H), confirming suitability for automotive power electronics where reliability under thermal and mechanical stress is critical.
What is the reverse leakage current specification for SR815 at elevated temperature?
At 150V reverse voltage and 125°C junction temperature, the SR815 exhibits a maximum reverse leakage current (IR) of 5 mA. This value is confirmed in the Electrical Specifications table and reflects worst-case behavior under high-temperature, high-voltage bias - essential for sizing snubber networks and evaluating standby power in high-ambient applications.
How does the guard ring in SR815 improve reliability?
The guard ring in SR815 is a diffused p-type region surrounding the main Schottky junction that redistributes electric field lines at the die edge, preventing premature avalanche breakdown under transient overvoltage. This structure directly enables the device's 150V VRRM rating and improves long-term reliability in DC bus applications subject to load dump or inductive switching spikes.
SR815 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.02 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 150 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR815 FAQ
1.How can I place an order for SR815 through Aetrix?
Please submit a Request for Quotation (RFQ) for SR815 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 SR815 reliable?
The price and inventory of SR815 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR815 is usually 5 days.
3.What payment methods are accepted for SR815?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR815 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR815?
SR815 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR815 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 SR815?
For technical support, including SR815 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR815 requirements.
6.How does Aetrix verify that SR815 is sourced from the original manufacturer or authorized distributors?
All SR815 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 SR815 meets industry standards.
7.What is the process for return or replacement of SR815?
All SR815 units undergo pre-shipment inspection (PSI). If there is an issue with SR815, 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 SR815 part is unused and in its original packaging.
Return procedure for SR815:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SR815 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…
