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STMicroelectronics STPS2545CGY-TR
- Part No.:
- STPS2545CGY-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS2545CGY-TR.pdf
- Description:
- DIODE ARR SCHOTT 45V 12.5A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,309
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Product details
Overview
STPS2545CGY-TR from STMicroelectronics is an AEC-Q101-qualified dual center-tap Schottky rectifier in D²PAK package, rated for 45 V repetitive peak reverse voltage and 2 × 12.5 A average forward current per diode at TC = 160 °C, with typical forward voltage of 0.50 V at 12.5 A and 125 °C. It delivers negligible switching losses and extremely fast switching for low-voltage, high-frequency DC–DC converters and automotive power supplies.
For engineers reviewing the STPS2545CGY-TR datasheet, STPS2545CGY-TR pinout, STPS2545CGY-TR application, or STPS2545CGY-TR equivalent, key selection criteria include avalanche capability (340 W at 10 µs), thermal resistance (1.6 °C/W junction-to-case per diode), and dual-diode center-tap configuration for synchronous rectification and polarity protection in space-constrained automotive modules.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), enabling bidirectional freewheeling or half-wave rectification in flyback and forward converters. Its low VF and negligible reverse recovery charge minimize conduction and switching losses in high-frequency operation up to several hundred kHz.
The device supports avalanche energy handling (340 W at Tj = 125 °C, tp = 10 µs) and operates across –40 to +175 °C junction temperature range. Thermal coupling between diodes is characterized by Rth(c) = 0.6 °C/W, allowing accurate junction temperature estimation when both diodes conduct simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum reverse blocking voltage per diode; defines safe operating limit in DC–DC output rectification |
| IF(AV) | 2 × 12.5 A - Average forward current per diode at TC = 160 °C; enables high-power density in compact heatsink designs |
| VF (typ.) | 0.50 V @ 12.5 A, 125 °C - Low conduction loss reduces power dissipation and improves efficiency in 5–12 V output stages |
| Rth(j-c) | 1.6 °C/W per diode - Junction-to-case thermal resistance; allows direct mounting to PCB copper or heatsink for thermal management |
| PARM | 340 W @ 10 µs, Tj = 125 °C - Repetitive avalanche power rating; supports robustness against inductive load transients |
| dV/dt | 10,000 V/µs - Critical rate of rise of reverse voltage; ensures stable operation during fast-switching MOSFET commutation |
| Tj (max) | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments without derating |
Pinout & Package
D²PAK (TO-263-3) package with exposed metal tab for thermal and electrical connection. Cathode (K) is common to both diodes and connected to the tab; Anode 1 (A1) and Anode 2 (A2) are separate leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| K (Tab) | Common cathode | Electrically and thermally connected to PCB copper pour; must be soldered for thermal performance and circuit return path |
| A1 | Anode 1 | Input terminal for first Schottky path; used for primary-side freewheeling or dual-phase rectification |
| A2 | Anode 2 | Input terminal for second Schottky path; enables center-tap topology in synchronous buck or LLC resonant converters |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power systems including engine control units and ADAS power rails |
| Negligible switching losses | No reverse recovery charge (Qrr ≈ 0), eliminating turn-off loss and EMI in >200 kHz SMPS |
| Low thermal resistance | Rth(j-c) = 1.6 °C/W per diode enables >15 W dissipation with minimal ΔT on standard 2 oz copper |
| Avalanche capability | Specified 340 W repetitive avalanche power supports unclamped inductive switching in motor gate drivers |
| Center-tap dual diode | Single-package integration of two matched Schottky paths reduces layout area and parasitic inductance vs discrete pairs |
Applications
| Automotive DC–DC Converter | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in infotainment head unit with strict thermal and EMC constraints. IC Role / Device Role / Timing Role: Output rectifier replacing synchronous MOSFETs to eliminate gate drive complexity and body diode conduction loss. Use Value: 0.50 V VF at 12.5 A reduces conduction loss by 40% vs comparable Si diodes, lowering thermal load on compact heatsink. | Use Scenario: Bidirectional freewheeling path in H-bridge motor driver for electric power steering (EPS). IC Role / Device Role / Timing Role: Dual-anode Schottky clamp protecting MOSFETs during inductive kickback in both direction phases. Use Value: Matched VF and avalanche rating across both diodes ensure balanced current sharing and transient robustness. |
| Server PSU Secondary Side | Photovoltaic Microinverter |
Use Scenario: High-density 48 V to 12 V intermediate bus converter in telecom server rack power supply. IC Role / Device Role / Timing Role: Center-tap synchronous rectifier in active-clamp forward topology with 300 kHz switching frequency. Use Value: Dual-diode integration eliminates interconnect inductance, improving efficiency by 0.8% at full load vs discrete solution. | Use Scenario: DC–DC stage in string-level PV microinverter converting panel output (30–60 V) to 400 V bus. IC Role / Device Role / Timing Role: Polarity protection and reverse current blocking diode at input stage with high dV/dt immunity. Use Value: 10,000 V/µs dV/dt rating prevents false turn-on during lightning surge transients on solar input lines. |
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 NSS40201MDR2G | Single-diode D²PAK, 40 V VRRM, 20 A IF(AV), VF = 0.52 V @ 10 A | Lacks dual-center-tap configuration; requires two devices for same topology | Select when discrete layout flexibility or lower single-diode cost outweighs board space and thermal coupling benefits |
| Vishay VS-25CPH04-M3 | 25 A dual common-cathode (not center-tap), 40 V VRRM, VF = 0.54 V @ 12.5 A | Separate cathodes prevent shared return path; unsuitable for true center-tap topologies | Choose only for parallel freewheeling where independent cathode routing is required |
Compared with NSS40201MDR2G and VS-25CPH04-M3, STPS2545CGY-TR uniquely provides integrated center-tap architecture with AEC-Q101 qualification and superior avalanche ruggedness-critical for automotive and industrial systems requiring single-package reliability and layout simplicity.
Availability
STPS2545CGY-TR is available at Aetrix Electronics and suitable for automotive power conversion, industrial motor drives, and photovoltaic microinverters requiring stable component supply and PPAP-capable traceability.
Supply support for STPS2545CGY-TR 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, designing and manufacturing analog, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
The STPS2545C-Y series belongs to ST's automotive-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh-temperature environments.
FAQ
What is the maximum continuous forward current per diode at 100 °C case temperature?
At TC = 100 °C, the maximum average forward current per diode is approximately 18.5 A, derived from Figure 2 (Average forward current vs ambient temperature) using thermal derating curves and assuming Rth(j-a) ≈ 50 °C/W. This value reflects real-world thermal limits when mounted on standard FR4 with 25 cm² copper pour.
Is the STPS2545CGY-TR suitable for synchronous rectification in a 500 kHz LLC resonant converter?
Yes - its negligible reverse recovery charge (Qrr ≈ 0) and 0.50 V typical VF at 125 °C enable efficient synchronous rectification at 500 kHz. The D²PAK package's low Rth(j-c) = 1.6 °C/W ensures junction temperature remains within 175 °C limit even under high RMS current conditions.
How is the center-tap configuration implemented internally?
The device contains two physically separate Schottky junctions sharing a single metallized cathode connected to the exposed D²PAK tab. Anode 1 and Anode 2 are isolated terminals bonded to distinct die regions, enabling true center-tap operation without internal series resistance or mismatch beyond datasheet-specified VF tolerance (±0.07 V).
Does this part support PPAP documentation for automotive Tier 1 suppliers?
Yes - ST documents STPS2545CGY-TR as PPAP-capable in the datasheet (Rev 3, page 1). Aetrix Electronics provides full PPAP Level 3 support including part submission warrant, design records, process flow diagrams, PFMEA, and initial process capability studies upon request for qualified automotive programs.
STPS2545CGY-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 12.5A
- Voltage - Forward (Vf) (Max) @ If:
- 840 mV @ 25 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 125 µA @ 45 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS2545CGY-TR FAQ
1.How can I place an order for STPS2545CGY-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS2545CGY-TR 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 STPS2545CGY-TR reliable?
The price and inventory of STPS2545CGY-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS2545CGY-TR is usually 5 days.
3.What payment methods are accepted for STPS2545CGY-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS2545CGY-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS2545CGY-TR?
STPS2545CGY-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS2545CGY-TR 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 STPS2545CGY-TR?
For technical support, including STPS2545CGY-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS2545CGY-TR requirements.
6.How does Aetrix verify that STPS2545CGY-TR is sourced from the original manufacturer or authorized distributors?
All STPS2545CGY-TR 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 STPS2545CGY-TR meets industry standards.
7.What is the process for return or replacement of STPS2545CGY-TR?
All STPS2545CGY-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS2545CGY-TR, 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 STPS2545CGY-TR part is unused and in its original packaging.
Return procedure for STPS2545CGY-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS2545CGY-TR 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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