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STMicroelectronics STPS1H100UY
- Part No.:
- STPS1H100UY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
STPS1H100UY.pdf
- Description:
- DIODE SCHOTTKY 100V 1A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:6,440
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Product details
Overview
STPS1H100UY from STMicroelectronics is an AEC-Q101-qualified automotive Schottky rectifier in SMB package, rated for 100 V repetitive peak reverse voltage, 1 A average forward current, and operation up to +175 °C junction temperature. It delivers low forward voltage drop (max 0.62 V at 1 A, 125 °C) with negligible switching losses, and is designed for DC/DC converters in LED lighting, ADAS power supplies, and engine control units.
For engineers reviewing the STPS1H100UY datasheet, STPS1H100UY pinout, STPS1H100UY application, or STPS1H100UY equivalent, key selection criteria include high-temperature reverse leakage performance (0.5 mA max at 125 °C), avalanche capability (108 W, 10 µs), thermal resistance (25 °C/W junction-to-lead), and ECOPACK®2 compliance for automotive-grade reliability.
Technical Context
This Schottky rectifier uses a planar silicon structure optimized for high-frequency switching in automotive power conversion. Its low VF–IR trade-off enables efficient operation under transient load conditions while maintaining stable reverse blocking up to 100 V across -40 °C to +175 °C ambient range.
The device features specified avalanche energy handling (PARM = 108 W, tp = 10 µs at Tj = 125 °C) and thermal design support via validated Rth(j-l) = 25 °C/W (SMB), enabling robust thermal management on FR4 PCBs with copper surface area ≥1 cm² per lead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Ensures reliable reverse blocking in 48 V and 60 V automotive systems with margin against transients. |
| IF(AV) | 1 A - Supports continuous output current in compact DC/DC modules for ECU auxiliary rails. |
| VF(max) | 0.62 V @ 1 A, 125 °C - Minimizes conduction loss (P ≈ 0.54×IF(AV) + 0.08×IF²(RMS)) in thermally constrained layouts. |
| IR(max) | 0.5 mA @ 125 °C, VR = VRRM - Limits standby power loss in always-on vehicle subsystems. |
| Tj(max) | +175 °C - Enables placement near hot components (e.g., power MOSFETs, inductors) without derating. |
| Rth(j-l) | 25 °C/W - Allows direct thermal path to PCB copper; requires ≥1 cm² Cu per lead for safe 1 A operation at TL = 155 °C. |
| PARM | 108 W @ 10 µs - Withstands short-circuit energy pulses in automotive load-dump or inductive kick scenarios. |
Pinout & Package
SMB package: Surface-mount, 2-terminal, gull-wing leads; epoxy meets UL94 V0; lead-free; dimensions D = 3.30–3.95 mm, E = 5.10–5.60 mm, L = 0.75–1.50 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to input rail (e.g., battery or boost stage output); must be routed with low-inductance trace for high-frequency stability. |
| Cathode (K) | Forward current exit / reverse blocking node | Connected to switching node or output filter; serves as reference for voltage clamping during avalanche events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per stress test requirements. |
| Negligible switching losses | No minority-carrier storage delay; enables >500 kHz operation without reverse recovery loss penalty. |
| Avalanche capability | Guaranteed 108 W single-pulse energy at 10 µs, supporting robustness against inductive turn-off spikes. |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and material declaration standards required for Tier-1 automotive supply chains. |
| VRRM guaranteed over full temp range | 100 V reverse rating maintained from -40 °C to +175 °C - eliminates derating calculations for system-level thermal design. |
Applications
| LED Headlamp Power Supply | ADAS Camera Module DC/DC |
|---|---|
Use Scenario: High-efficiency buck converter supplying 12 V → 5 V/3.3 V to CMOS image sensor and ISP in front-facing camera. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous step-down topology; handles 0.8–1.2 A continuous load with minimal thermal rise. Use Value: Low VF reduces power loss by >15% vs. standard Si diodes, extending module lifetime in sealed headlamp enclosures. | Use Scenario: Input protection and output rectification in isolated flyback powering radar SoC and CAN transceiver. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier; operates at 250–400 kHz with fast transient response to burst-mode loads. Use Value: Avalanche rating absorbs leakage inductance spikes without snubber, simplifying layout and reducing BOM count. |
| Engine Control Unit (ECU) Auxiliary Rail | 12 V Battery Backup Regulator |
Use Scenario: Post-regulation rectifier in 12 V → 5 V/3.3 V LDO pre-regulator feeding microcontroller core and CAN PHY. IC Role / Device Role / Timing Role: Low-leakage freewheeling path during LDO dropout; maintains regulation during cold-crank (5.5 V battery). Use Value: IR ≤ 0.5 mA at 125 °C prevents >2 mW standby loss, critical for always-on ECU sleep modes. | Use Scenario: Reverse polarity and overvoltage protection in backup power path for real-time clock and memory retention. IC Role / Device Role / Timing Role: Bidirectional blocking element; conducts only during normal battery operation, blocks reverse current during jump-start. Use Value: VRRM = 100 V withstands load-dump transients (ISO 7637-2 Pulse 5a) without breakdown or parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS1C200MT1G | Same SMB package, 100 V VRRM, but IF(AV) = 2 A; VF = 0.75 V @ 2 A, 25 °C - higher conduction loss at 1 A. | Targeted at higher-current industrial SMPS; less optimized for automotive thermal cycling. | Select when higher surge current (IFSM = 100 A) is required, but verify AEC-Q101 status per batch. |
| Vishay VS-1EWH10-M3/5AT | SMB package, 100 V VRRM, IF(AV) = 1 A; VF = 0.67 V @ 1 A, 125 °C - 8% higher forward drop than STPS1H100UY. | Qualified to AEC-Q101 but lacks specified avalanche energy rating (PARM not published). | Acceptable where avalanche robustness is secondary; confirm thermal derating curves match ST's Rth(j-l) = 25 °C/W. |
Compared with NSS1C200MT1G and VS-1EWH10-M3/5AT, STPS1H100UY offers the lowest VF at 1 A/125 °C and a guaranteed 108 W avalanche rating - critical for automotive systems subject to unclamped inductive switching and load-dump events.
Availability
STPS1H100UY is available at Aetrix Electronics and suitable for LED headlamp power supplies, ADAS camera module DC/DC converters, and Engine Control Unit auxiliary rails requiring stable component supply across automotive production lifecycles.
Supply support for STPS1H100UY 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering automotive, industrial, and power management solutions with vertical manufacturing and long-term product longevity commitments.
This device belongs to ST's Automotive Power Schottky Rectifier family, engineered specifically for high-reliability, high-temperature DC/DC conversion in safety-critical vehicle subsystems.
FAQ
What is the maximum allowable PCB copper area per lead for thermal compliance?
The SMB package achieves Rth(j-a) ≈ 40 °C/W with 1 cm² copper per lead on FR4. For 1 A continuous operation at TL = 155 °C, ≥1.5 cm² per lead is recommended to maintain Tj ≤ 175 °C under worst-case ambient conditions.
Does STPS1H100UY support bidirectional current flow?
No - it is a unidirectional Schottky rectifier. Current flows only from anode to cathode under forward bias; reverse bias blocks current up to VRRM = 100 V, with leakage <0.5 mA at 125 °C.
Is PPAP documentation available for STPS1H100UY?
Yes - ST provides full PPAP Level 3 documentation (including PSW, dimensional reports, material certifications, and test data) upon request for qualified automotive customers through authorized ST sales channels.
How does the 10 µs avalanche rating translate to real-world fault tolerance?
The 108 W rating corresponds to 108 J/s × 10 µs = 1.08 mJ energy absorption. This reliably clamps typical MOSFET turn-off spikes (<0.8 mJ) in 48 V automotive buck converters without degradation or failure.
STPS1H100UY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Q
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 770 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPS1H100UY FAQ
1.How can I place an order for STPS1H100UY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS1H100UY 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 STPS1H100UY reliable?
The price and inventory of STPS1H100UY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS1H100UY is usually 5 days.
3.What payment methods are accepted for STPS1H100UY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS1H100UY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS1H100UY?
STPS1H100UY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS1H100UY 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 STPS1H100UY?
For technical support, including STPS1H100UY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS1H100UY requirements.
6.How does Aetrix verify that STPS1H100UY is sourced from the original manufacturer or authorized distributors?
All STPS1H100UY 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 STPS1H100UY meets industry standards.
7.What is the process for return or replacement of STPS1H100UY?
All STPS1H100UY units undergo pre-shipment inspection (PSI). If there is an issue with STPS1H100UY, 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 STPS1H100UY part is unused and in its original packaging.
Return procedure for STPS1H100UY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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