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STMicroelectronics STPS41H100CTY
- Part No.:
- STPS41H100CTY
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPS41H100CTY.pdf
- Description:
- DIODE ARR SCHOTT 100V 20A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:874
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Product details
Overview
STPS41H100CTY from STMicroelectronics is an automotive-grade dual center-tap Schottky rectifier in TO-220AB package, rated for 100 V repetitive reverse voltage, 2 × 20 A average forward current per diode, and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.62 V typ. at 20 A, 125 °C) and negligible switching losses, enabling high-efficiency DC/DC converters in engine control units and automotive infotainment power supplies.
For engineers reviewing the STPS41H100CTY datasheet, STPS41H100CTY pinout, STPS41H100CTY application, or STPS41H100CTY equivalent, key selection criteria include avalanche rating (1300 W peak), AEC-Q101 qualification, thermal resistance (1.5 °C/W j-c per diode), low leakage (≤10 µA at 25 °C), and ECOPACK®2 compliance for automotive supply chain traceability.
Technical Context
This dual-center-tap Schottky rectifier integrates two independent anode-cathode diodes sharing a common cathode terminal, optimized for synchronous rectification in high-frequency SMPS topologies. Its low VF–IR trade-off enables reduced conduction loss while maintaining <10 µA reverse leakage at 25 °C and ≤10 mA at 125 °C under full VRRM.
The device features avalanche-rated ruggedness (1300 W peak, 10 µs pulse), validated per AN1768 and AN2025, and supports thermal management via case-conduction cooling with Rth(j-c) = 1.5 °C/W per diode. Junction temperature operation spans –40 to +175 °C, meeting PPAP-capable automotive production requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks up to 100 V reverse voltage without breakdown in automotive transients |
| IF(AV) per diode | 20 A - supports continuous 20 A DC output per leg in dual-rail DC/DC designs |
| VF (typ) | 0.62 V @ 20 A, 125 °C - minimizes conduction loss and heat generation at elevated ambient |
| IR (max) | 10 µA @ 25 °C, VRRM - ensures low standby power loss in always-on vehicle modules |
| Tj(max) | 175 °C - enables operation near engine bay hot zones without derating |
| Rth(j-c) per diode | 1.5 °C/W - allows direct heatsink mounting for predictable thermal design |
| PARM | 1300 W @ 10 µs - withstands load dump and inductive kick events per AEC-Q101 |
Pinout & Package
TO-220AB package with isolated tab (electrically connected to cathode), 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2. Mounting torque: 0.55 N·m recommended, max 0.7 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to primary-side switch node in half-bridge or flyback secondary |
| Pin 2 | Common Cathode | Shared output return path; electrically tied to metal tab for thermal conduction |
| Pin 3 | Anode of Diode 2 | Enables dual-output or interleaved rectification without external wiring |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood use including temperature cycling, humidity, and mechanical shock |
| Avalanche rated (1300 W) | Survives repetitive 10 µs energy pulses during load dump or inductive turn-off |
| Low VF / IR trade-off | 0.62 V forward drop at 20 A/125 °C with only 3 mA leakage at 125 °C/VRRM |
| ECOPACK®2 compliant | Lead-free, halogen-free, RoHS-compliant packaging meeting automotive environmental standards |
| TO-220AB thermal interface | Isolated metal tab enables direct heatsink mounting with 1.5 °C/W j-c thermal path per diode |
Applications
| Engine Control Unit (ECU) Power Supply | Automotive Infotainment DC/DC Converter |
|---|---|
Use Scenario: Regulates 12 V battery input to stable 3.3 V/5 V rails for microcontroller and audio DSP cores. IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier providing synchronous rectification in buck-derived topology. Use Value: 0.62 V VF reduces conduction loss by ~18% vs. standard 0.75 V Schottky, lowering thermal stress on ECU PCB. | Use Scenario: Supplies isolated 12 V → 5 V/3.3 V outputs for display, Bluetooth, and USB subsystems. IC Role / Device Role / Timing Role: Center-tapped dual diode enables compact dual-output forward converter with shared cathode return. Use Value: Avalanche rating absorbs transient spikes from motor-driven HVAC fans, eliminating need for external TVS. |
| ADAS Camera Module Power | Body Control Module (BCM) Auxiliary Rail |
Use Scenario: Powers image sensor and ISP in rear-view or surround-view cameras exposed to under-hood temperatures. IC Role / Device Role / Timing Role: High-Tj rectifier handling 175 °C junction limit in sealed camera housings. Use Value: 175 °C Tj(max) avoids thermal shutdown during sustained 85 °C ambient operation with minimal heatsinking. | Use Scenario: Generates 5 V auxiliary rail for door lock actuators, LED lighting, and LIN transceivers. IC Role / Device Role / Timing Role: Low-leakage (≤10 µA @ 25 °C) rectifier minimizing quiescent current in always-on sleep mode. Use Value: Enables <50 µA total system standby current, meeting OEM battery drain specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS40H100CGY | D²PAK package; Rth(j-c) = 1.0 °C/W per diode; same electrical specs | Better thermal performance but requires surface-mount assembly and larger PCB footprint | Select when board space permits SMT and higher thermal efficiency is critical |
| VS-42BA100 | Vishay TO-220AB part; VF = 0.72 V (typ) @ 20 A, 125 °C; no AEC-Q101 or avalanche rating | Lacks automotive qualification and transient ruggedness; lower cost for non-automotive use | Select only for industrial or consumer applications where AEC-Q101 is not required |
Compared with STPS41H100CTY, STPS40H100CGY offers superior thermal resistance but demands reflow-compatible layout, while VS-42BA100 sacrifices automotive reliability and low-VF advantage for cost savings in non-automotive systems.
Availability
STPS41H100CTY is available at Aetrix Electronics and suitable for engine control units, ADAS camera power supplies, and body control module auxiliary rails requiring stable component supply across automotive production lifecycles.
Supply support for STPS41H100CTY 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, designing and manufacturing silicon solutions for automotive, industrial, and power management applications.
The STPS series targets high-reliability automotive power conversion, with STPS41H100CTY specifically engineered for thermally demanding, transient-rich DC/DC rectification in AEC-Q101-compliant systems.
FAQ
Is STPS41H100CTY pin-compatible with STPS40H100CGY?
No. STPS41H100CTY uses TO-220AB through-hole packaging with 3 leads and isolated tab, while STPS40H100CGY uses D²PAK surface-mount packaging with 3 gull-wing leads and exposed thermal pad. Mechanical mounting, PCB layout, and thermal interface differ fundamentally.
What is the maximum continuous forward current per diode at 150 °C case temperature?
Per Table 2, IF(AV) per diode is rated at 20 A when Tc = 150 °C and duty cycle δ = 0.5. This value is derated linearly above 150 °C case temperature using Rth(j-c) = 1.5 °C/W and Tj(max) = 175 °C, yielding ~13.3 A at Tc = 165 °C.
Does STPS41H100CTY require external snubbers in 250 kHz DC/DC converters?
No. Its negligible switching losses and low junction capacitance (typ. 1.2 nF at 10 V, Figure 7) eliminate need for snubbers in typical 250 kHz automotive buck or forward converters. Layout parasitics-not diode behavior-dominate ringing in this frequency range.
Can the common cathode be used as a thermal pad for heatsinking?
Yes. The metal tab is electrically connected to Pin 2 (common cathode) and designed for direct heatsink mounting. Thermal interface material must be applied between tab and heatsink; isolation washers are unnecessary unless circuit-level galvanic isolation is required.
STPS41H100CTY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 670 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
STPS41H100CTY FAQ
1.How can I place an order for STPS41H100CTY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS41H100CTY 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 STPS41H100CTY reliable?
The price and inventory of STPS41H100CTY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS41H100CTY is usually 5 days.
3.What payment methods are accepted for STPS41H100CTY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS41H100CTY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS41H100CTY?
STPS41H100CTY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS41H100CTY 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 STPS41H100CTY?
For technical support, including STPS41H100CTY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS41H100CTY requirements.
6.How does Aetrix verify that STPS41H100CTY is sourced from the original manufacturer or authorized distributors?
All STPS41H100CTY 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 STPS41H100CTY meets industry standards.
7.What is the process for return or replacement of STPS41H100CTY?
All STPS41H100CTY units undergo pre-shipment inspection (PSI). If there is an issue with STPS41H100CTY, 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 STPS41H100CTY part is unused and in its original packaging.
Return procedure for STPS41H100CTY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS41H100CTY Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
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