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STMicroelectronics STPS3045DJFY-TR
- Part No.:
- STPS3045DJFY-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- 8-PowerVDFN
- Datasheet:
-
STPS3045DJFY-TR.pdf
- Description:
- DIODE SCHOTTKY 45V 30A POWERFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
STPS3045DJFY-TR from STMicroelectronics is an automotive-grade Schottky rectifier optimized for high-frequency DC-DC converters and switch-mode power supplies, featuring 30 A average forward current, 45 V repetitive peak reverse voltage, 0.41 V typical forward voltage at 125 °C/15 A, 2.0 °C/W junction-to-case thermal resistance, and PowerFLAT™ 5x6 wettable flanks package for automated optical inspection in automotive power modules.
For engineers reviewing the STPS3045DJFY-TR datasheet, STPS3045DJFY-TR pinout, STPS3045DJFY-TR application, or STPS3045DJFY-TR equivalent, key selection criteria include avalanche-rated 900 W peak power handling, AEC-Q101 qualification, 1 mm profile for space-constrained under-hood layouts, and low conduction loss equation (P = 0.43 × IF(AV) + 0.00433 × IF²(RMS)).
Technical Context
This Schottky rectifier operates with negligible switching losses due to majority-carrier conduction and ultra-fast recovery, enabling use in >100 kHz automotive DC-DC stages. Its avalanche capability is validated per AN1768 and AN2025, supporting robustness against inductive load transients without external snubbers.
The PowerFLAT 5x6 package integrates wettable flanks for solder-joint inspection and achieves 2.0 °C/W Rth(j-c) via direct copper tab thermal path-critical for maintaining Tj ≤ 175 °C in engine control units and ADAS power rails where ambient exceeds 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 30 A - maximum continuous forward current at 130 °C case temperature, defining steady-state power stage rating |
| VRRM | 45 V - peak reverse blocking voltage, suitable for 12 V/24 V automotive battery systems with transient margin |
| VF (typ.) | 0.41 V at 15 A / 125 °C - low conduction loss enabling >95% efficiency in buck converter freewheeling paths |
| Rth(j-c) | 2.0 °C/W - thermal resistance from junction to case, enabling 45 W dissipation with 90 °C ΔT to heatsink |
| IFSM | 380 A (10 ms sine) - surge current rating for cold-crank and load-dump event tolerance |
| PARM | 900 W (10 µs pulse, Tj = 125 °C) - specified avalanche energy handling without failure |
| Tj (max.) | 175 °C - maximum junction temperature, supporting operation in under-hood environments up to 150 °C ambient |
Pinout & Package
STPS3045DJFY-TR uses a 2-terminal PowerFLAT™ 5x6 wettable flanks package (JEDEC MO-229 variant), with exposed cathode pad on bottom surface and anode terminals on top side. The 1 mm profile enables PCB stacking in compact ECU modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top-side pads) | Input current entry point | Parallel-connected metal pads accepting high di/dt during switching transitions; designed for low-inductance PCB layout |
| Cathode (exposed bottom pad) | Output current exit & thermal path | Large copper area for both electrical return and heat conduction to heatsink or internal ground plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature cycling (-40 °C to +175 °C), vibration, and humidity stress per JESD47 |
| Wettable flanks | Side-wall plating enables 100% automated visual inspection (AVI) of solder fillets in SMT reflow processes |
| ECOPACK®2 compliance | Lead-free, halogen-free, RoHS-compliant construction meeting automotive environmental standards |
| Low thermal resistance | 2.0 °C/W Rth(j-c) allows direct mounting to copper pour without thermal vias in cost-sensitive designs |
| Avalanche capability | 900 W peak avalanche power rating supports unclamped inductive switching in motor drivers and solenoid controls |
Applications
| Engine Control Unit (ECU) Power Supply | ADAS Camera Module DC-DC Converter |
|---|---|
Use Scenario: 12 V input to 3.3 V/5 V regulation for microcontroller and image sensor rails in engine bay-mounted ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter secondary side, conducting during low-side FET off-time. Use Value: 0.41 V VF at 125 °C reduces conduction loss by ~35% vs. standard Schottky alternatives, lowering thermal load on sealed enclosure. | Use Scenario: Compact 24 V to 5 V step-down for radar and camera modules mounted behind vehicle grille. IC Role / Device Role / Timing Role: Polarity protection and reverse-current blocking diode in input stage of isolated flyback controller. Use Value: 1 mm profile fits within 3 mm board height budget; wettable flanks ensure AVI-compatible solder joint integrity in high-vibration zones. |
| Electric Power Steering (EPS) Motor Driver | On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: High-current freewheeling path in three-phase inverter half-bridge legs driving 48 V EPS motors. IC Role / Device Role / Timing Role: Clamping diode absorbing inductive kickback during PWM dead-time intervals. Use Value: 380 A IFSM and 900 W PARM enable reliable operation during rapid torque transients without snubber networks. | Use Scenario: 400 V DC bus to 12 V auxiliary supply for OBC control logic and gate drivers. IC Role / Device Role / Timing Role: Output rectifier in LLC resonant converter secondary stage operating at 200–500 kHz. Use Value: Negligible switching losses maintain >97% efficiency at 30 A output; 175 °C Tj rating ensures reliability across full EV charging cycle. |
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 NSS30450FCT1G | Same 30 A/45 V rating but TO-277A package (3.5 mm height); Rth(j-c) = 2.5 °C/W | Requires taller PCB clearance; lacks wettable flanks and AEC-Q101 certification | Preferred only when legacy TO-277 footprint must be retained and AVI not required |
| Vishay VS-30CPH045 | PowerPAK® SO-8 package; VF = 0.52 V @ 15 A/125 °C; Rth(j-c) = 3.0 °C/W | Lower current density; unsuitable for >100 kHz operation due to higher capacitance | Acceptable for lower-frequency industrial SMPS where space and thermal performance are less critical |
Compared with NSS30450FCT1G and VS-30CPH045, STPS3045DJFY-TR delivers superior thermal performance (2.0 °C/W), automotive qualification, and AVI-ready packaging-making it the only choice for high-reliability, space-constrained automotive power conversion.
Availability
STPS3045DJFY-TR is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, electric power steering systems, and on-board chargers requiring stable component supply across automotive production lifecycles.
Supply support for STPS3045DJFY-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, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
This device belongs to ST's Automotive Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-reliability DC-DC conversion in harsh under-hood environments with strict AEC-Q101 and PPAP requirements.
FAQ
What is the maximum allowable case temperature for continuous operation?
The datasheet specifies IF(AV) = 30 A at Tc = 130 °C with duty cycle δ = 0.5. Exceeding 130 °C case temperature requires derating per Figure 2; sustained operation above 130 °C risks exceeding 175 °C junction limit unless thermal design provides adequate margin via heatsinking or airflow.
Does STPS3045DJFY-TR support automatic optical inspection (AOI)?
Yes-it features wettable flanks per PowerFLAT 5x6 mechanical specification, enabling full-spectrum AOI of solder fillets on all four side walls. This meets IPC-A-610 Class 3 requirements for automotive electronics and eliminates manual solder-joint verification.
How is avalanche capability validated for this part?
Avalanche energy is measured per ST application notes AN1768 and AN2025 using 10 µs pulses at Tj = 125 °C. The 900 W PARM rating reflects single-pulse survivability; repetitive avalanche is not rated, and system-level clamping must remain within this limit to avoid cumulative degradation.
Can this diode replace a standard PN rectifier in an existing 45 V design?
Yes, provided layout accommodates the PowerFLAT 5x6 footprint and thermal interface. Unlike PN diodes, it has no reverse recovery charge (Qrr ≈ 0), eliminating switching spikes-but its lower VRRM margin versus 60 V PN parts means transient protection must be verified per ISO 7637-2 for automotive load dump.
STPS3045DJFY-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 680 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- PowerFlat™ (5x6)
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPS3045DJFY-TR FAQ
1.How can I place an order for STPS3045DJFY-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS3045DJFY-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 STPS3045DJFY-TR reliable?
The price and inventory of STPS3045DJFY-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS3045DJFY-TR is usually 5 days.
3.What payment methods are accepted for STPS3045DJFY-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS3045DJFY-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS3045DJFY-TR?
STPS3045DJFY-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS3045DJFY-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 STPS3045DJFY-TR?
For technical support, including STPS3045DJFY-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS3045DJFY-TR requirements.
6.How does Aetrix verify that STPS3045DJFY-TR is sourced from the original manufacturer or authorized distributors?
All STPS3045DJFY-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 STPS3045DJFY-TR meets industry standards.
7.What is the process for return or replacement of STPS3045DJFY-TR?
All STPS3045DJFY-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS3045DJFY-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 STPS3045DJFY-TR part is unused and in its original packaging.
Return procedure for STPS3045DJFY-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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