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Taiwan Semiconductor Corporation SRS1090H
- Part No.:
- SRS1090H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SRS1090H.pdf
- Description:
- DIODE ARR SCHOTT 90V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,886
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Product details
Overview
SRS1090H from Taiwan Semiconductor is a 10A, 90V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, featuring low forward voltage (0.90 V at 5 A, 25°C), 120 A surge capability, AEC-Q101 qualification, and junction temperature rating up to +150°C. It serves as a high-efficiency freewheeling or reverse-battery protection diode in automotive DC/DC converters.
For engineers reviewing the SRS1090H datasheet, SRS1090H pinout, SRS1090H application, or SRS1090H equivalent, key selection criteria include its 90 V repetitive peak reverse voltage, 2 °C/W junction-to-case thermal resistance, 100 µA max reverse leakage at 25°C, and compatibility with automated SMT placement per J-STD-002 solderability standards.
Technical Context
The SRS1090H integrates dual Schottky die in a single TO-263AB (D2PAK) thermally optimized package, enabling high-current conduction with minimal power loss. Its guard ring structure provides overvoltage protection, and the device operates across -55°C to +150°C junction temperature range.
Designed for automotive-grade reliability, the SRS1090H meets AEC-Q101 stress test requirements and exhibits moisture sensitivity level 1 (per J-STD-020), matte tin-plated leads compliant with JESD 201 Class 2 whisker testing, and halogen-free molding compound per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - maximum repetitive reverse blocking voltage; defines safe operating limit in reverse-biased applications like reverse battery protection |
| IF | 10 A - continuous forward current rating at case temperature ≤ 125°C; supports sustained power conversion loads |
| IFSM | 120 A - non-repetitive surge current (8.3 ms half-sine); handles inrush and transient overload events |
| VF @ 5A, 25°C | 0.90 V - low forward drop reduces conduction loss and improves system efficiency in DC/DC stages |
| IR @ VR, 25°C | 100 µA - low reverse leakage minimizes standby power loss in battery-critical systems |
| RθJC | 2 °C/W - low thermal resistance enables effective heat transfer to PCB copper, supporting high-power density layouts |
| TJ max | +150°C - extended junction temperature rating allows operation in under-hood automotive environments |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal configuration with anode, cathode, and exposed thermal pad (connected to cathode internally).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to input/source side; polarity-marked on top surface per device marking diagram |
| Cathode (Pin 2) | Forward current exit / common return | Electrically tied to exposed thermal pad; requires full-solder coverage for thermal and electrical performance |
| Exposed Pad | Thermal and electrical cathode connection | Must be soldered to large PCB copper area for optimal thermal dissipation and current handling |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD stress-enables deployment in engine control and lighting modules |
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external snubbers in inverter freewheeling paths |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; supports standard SMT assembly without process modification |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates for automotive and industrial end equipment |
| High surge current capability (120 A) | Withstands repeated load dump transients in 12 V vehicle electrical systems without degradation |
Applications
| Automotive DC/DC Converters | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down conversion in 12 V–5 V/3.3 V subsystems for infotainment and ADAS sensors. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology. Use Value: 0.90 V VF and 2 °C/W RθJC reduce conduction loss and localized heating, improving converter efficiency and thermal margin. | Use Scenario: Preventing damage during incorrect battery terminal connection in body control modules. IC Role / Device Role / Timing Role: Series-blocking rectifier placed between battery input and downstream electronics. Use Value: 90 V VRRM withstands load-dump spikes; AEC-Q101 qualification ensures long-term reliability in harsh automotive environments. |
| LED Headlamp Drivers | Industrial 24 V Power Supplies |
Use Scenario: High-side switching and current regulation in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Output rectifier in boost-derived constant-current LED driver stage. Use Value: Low VF minimizes power loss at high forward current (≥8 A), preserving luminous output and reducing heatsink size. | Use Scenario: Secondary-side rectification in isolated 24 V AC/DC supplies for PLC and motor drives. IC Role / Device Role / Timing Role: Main output rectifier in flyback or forward converter secondary winding. Use Value: 120 A IFSM accommodates startup surges; TO-263AB package enables robust thermal coupling to heatsinked PCB layers. |
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-10BQ090-M3/45 | Same 90 V VRRM, 10 A IF, TO-263AB package; VF = 0.82 V @ 5 A (25°C); RθJC = 2.5 °C/W | Slightly lower VF improves efficiency margin but higher thermal resistance limits power density | Prefer when absolute lowest conduction loss is prioritized over thermal footprint |
| ON Semiconductor MBR1090CT | Dual common-cathode configuration in TO-220AC; VF = 0.92 V @ 5 A; no AEC-Q101 qualification | Through-hole mounting only; not qualified for automotive use; lacks guard ring | Select only for cost-sensitive industrial non-automotive designs where AEC-Q101 is not required |
Compared with VS-10BQ090-M3/45 and MBR1090CT, the SRS1090H delivers superior thermal performance (2 °C/W vs. 2.5 °C/W), AEC-Q101 compliance for automotive deployment, and integrated overvoltage protection-making it the preferred choice for space-constrained, high-reliability 12 V/24 V vehicle systems.
Availability
SRS1090H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and LED headlamp drivers requiring stable component supply, AEC-Q101 compliance, and high surge robustness.
Supply support for SRS1090H 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, including Schottky rectifiers, MOSFETs, and TVS diodes.
The SRS10xxH series was developed specifically for automotive and industrial power conversion applications demanding high reliability, low loss, and AEC-Q101 qualification in surface-mount packages.
FAQ
What is the maximum junction temperature rating for the SRS1090H?
The SRS1090H has a maximum junction temperature (TJ max) of +150°C, verified per AEC-Q101 thermal stress testing. This rating allows reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C. The SRS1090H must be mounted with adequate copper pour and solder coverage on the exposed cathode pad to maintain junction temperature within this limit during 10 A continuous conduction.
Is the SRS1090H pin-compatible with other parts in the SRS10xxH family?
Yes-the SRS1090H shares identical TO-263AB (D2PAK) mechanical dimensions, pinout, and thermal pad layout with all members of the SRS10xxH series (e.g., SRS1020H through SRS10150H). This enables board-level voltage scalability without layout changes. However, forward voltage and reverse leakage differ across voltage grades, so electrical validation is required when substituting within the family.
Does the SRS1090H require a heatsink in typical 10 A operation?
No external heatsink is required if the SRS1090H's exposed cathode pad is fully soldered to ≥250 mm² of 2-oz copper on an internal layer, per TSC recommended pad layout. With RθJC = 2 °C/W and typical PCB thermal resistance of ~25 °C/W, junction-to-ambient rise remains below 100°C at 10 A continuous-well within the +150°C TJ max limit. Thermal simulation is advised for high-ambient or sealed enclosures.
What does the "H" suffix indicate in SRS1090H?
The "H" suffix in SRS1090H denotes the halogen-free version of the device, compliant with IEC 61249-2-21. It confirms the molding compound contains no brominated or chlorinated flame retardants. All SRS10xxH parts meet RoHS Directive 2011/65/EU and are rated MSL Level 1 per J-STD-020-no baking required before reflow.
Can the SRS1090H be used in synchronous rectification topologies?
No-the SRS1090H is a passive Schottky rectifier and lacks gate control or synchronous drive capability. It functions only as a unidirectional, self-commutating device. For synchronous rectification, discrete MOSFETs (e.g., TSC's N-channel TrenchFETs) or integrated controllers with gate drivers are required. The SRS1090H remains optimal for asynchronous buck, flyback, and freewheeling applications where simplicity and ruggedness are prioritized.
SRS1090H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SRS1090H FAQ
1.How can I place an order for SRS1090H through Aetrix?
Please submit a Request for Quotation (RFQ) for SRS1090H 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 SRS1090H reliable?
The price and inventory of SRS1090H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS1090H is usually 5 days.
3.What payment methods are accepted for SRS1090H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS1090H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRS1090H?
SRS1090H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRS1090H 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 SRS1090H?
For technical support, including SRS1090H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS1090H requirements.
6.How does Aetrix verify that SRS1090H is sourced from the original manufacturer or authorized distributors?
All SRS1090H 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 SRS1090H meets industry standards.
7.What is the process for return or replacement of SRS1090H?
All SRS1090H units undergo pre-shipment inspection (PSI). If there is an issue with SRS1090H, 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 SRS1090H part is unused and in its original packaging.
Return procedure for SRS1090H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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