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STMicroelectronics STPS3045CGY-TR
- Part No.:
- STPS3045CGY-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS3045CGY-TR.pdf
- Description:
- DIODE ARRAY SCHOTT 45V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
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Product details
Overview
STPS3045CGY-TR from STMicroelectronics is a dual center-tap automotive Schottky rectifier in D2PAK package, rated for 45 V repetitive peak reverse voltage, 2 × 15 A average forward current per diode, and maximum junction temperature of 175 °C. It delivers low conduction loss (VF max 0.57 V at 15 A, 125 °C) and negligible switching losses, making it suitable for high-frequency DC–DC converters and low-voltage inverters in engine control units and ADAS power supplies.
For engineers reviewing the STPS3045CGY-TR datasheet, STPS3045CGY-TR pinout, STPS3045CGY-TR application, or STPS3045CGY-TR equivalent, key selection criteria include avalanche rating (6000 W, 1 µs), AEC-Q101 qualification, thermal resistance (Rth(j–c) = 1.60 °C/W per diode), and center-tap dual-diode topology for synchronous rectification and polarity protection circuits.
Technical Context
This device integrates two independent Schottky diodes sharing a common cathode (K) terminal and separate anodes (A1, A2), forming a center-tapped configuration ideal for half-bridge freewheeling and bidirectional clamp applications. Its low VF and ultrafast switching eliminate minority-carrier recovery delay, enabling operation beyond 1 MHz in SMPS topologies.
The diode pair is thermally coupled via a shared copper tab, with measured Rth(c) = 0.10 °C/W between dies, allowing accurate junction temperature estimation using P(diode1) × Rth(j–c) + P(diode2) × Rth(c). Avalanche capability is specified at 6000 W for 1 µs pulses at Tj = 25 °C, supporting transient overvoltage robustness in automotive load-dump conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum reverse blocking voltage before breakdown; ensures safe operation in 24 V automotive systems with load-dump transients. |
| IF(AV) per diode | 15 A - Continuous DC current handling per anode under TC = 155 °C; supports 30 A total device output in parallel-anode configurations. |
| VF (max) | 0.57 V at 15 A, 125 °C - Low forward drop minimizes conduction loss (P ≈ 0.42×IF + 0.01×IF² RMS), critical for >90% efficiency in 5–12 V DC–DC stages. |
| Rth(j–c) per diode | 1.60 °C/W - Junction-to-case thermal resistance enables direct heatsink mounting; allows ~10 W dissipation per diode at ΔT = 16 °C. |
| IFSM | 220 A (10 ms sine) - Surge current rating supports motor drive startup and battery connection inrush without failure. |
| Avalanche energy | 6000 W @ 1 µs - Rated repetitive peak avalanche power at Tj = 25 °C; provides validated clamping margin against inductive kickback in solenoid drivers. |
| dV/dt rating | 10,000 V/µs - Critical rate-of-rise immunity prevents false turn-on during fast-switching noise events in gate-drive power rails. |
Pinout & Package
Package: D2PAK (TO-263-3), surface-mount, lead-free, UL94 V0 epoxy, with exposed copper thermal pad (tab) soldered to PCB ground plane for optimal heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first Schottky diode; used in high-side freewheeling path or positive rail polarity protection. |
| A2 | Anode 2 | Input terminal for second Schottky diode; enables dual-input rectification or complementary half-bridge clamp node. |
| K | Common Cathode | Shared output node; connects to system ground or negative rail; carries combined forward current from both diodes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood environments including temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| Dual center-tap topology | Enables single-package implementation of synchronous rectifier pairs in buck-derived topologies without discrete layout coupling. |
| Low Rth(j–c) + coupling term | Thermal design simplifies with 0.10 °C/W inter-die coupling-allows accurate thermal modeling when both diodes operate simultaneously. |
| Negligible reverse recovery | Zero Qrr eliminates switching loss and EMI associated with PN diode tail current, enabling clean 1–3 MHz operation in GaN-compatible supplies. |
| Avalanche-rated | Guaranteed 6000 W pulse handling at 1 µs supports unclamped inductive switching in valve actuator drivers without external TVS. |
Applications
| Engine Control Unit (ECU) Power Stage | ADAS Camera Module DC–DC Converter |
|---|---|
Use Scenario: Regulating 5 V/3.3 V rails from 12 V battery input in engine bay, subject to 125 °C ambient and load-dump transients. IC Role / Device Role / Timing Role: Dual Schottky rectifier in synchronous buck secondary; A1/A2 alternate conduction under PWM control, K returns to ground. Use Value: VF ≤ 0.57 V at 125 °C reduces conduction loss by 35% vs. standard silicon diodes, improving thermal margin in sealed enclosures. | Use Scenario: Isolated 12 V → 5 V step-down for CMOS image sensor and ISP in rear-view camera housing. IC Role / Device Role / Timing Role: Center-tap freewheeling diode in active-clamp forward converter; K tied to primary-side clamp capacitor midpoint. Use Value: dV/dt = 10,000 V/µs prevents spurious turn-on during 100 ns gate transitions, eliminating shoot-through risk in high-side switch node. |
| Electric Power Steering (EPS) Motor Driver | Automotive Infotainment USB-C PD Interface |
Use Scenario: Bidirectional energy recovery during motor deceleration in 48 V EPS systems with regenerative braking. IC Role / Device Role / Timing Role: Polarity protection + flyback clamp; A1 and A2 connected to H-bridge legs, K grounded to chassis. Use Value: Avalanche rating (6000 W @ 1 µs) absorbs inductive kickback without external snubbers, reducing BOM count and board area. | Use Scenario: Input rectification and reverse-polarity protection for USB-C Power Delivery input stage in head unit. IC Role / Device Role / Timing Role: Dual-anode configuration enables redundant 5 V/9 V/15 V input path selection with shared cathode return. Use Value: IF(AV) = 15 A per diode supports 3 A continuous USB-C PD 3.0 sink operation while maintaining < 40 °C junction rise on 2 oz Cu PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MBR3045CT | Same VRRM (45 V), IF(AV) = 15 A per diode, but Rth(j–c) = 2.0 °C/W and no AEC-Q101 qualification. | Not approved for automotive underhood use; limited to industrial or consumer-grade 24 V supplies. | Select only if AEC-Q101 compliance is not required and thermal margin permits higher Rth. |
| Vishay VS-30CPH045 | Higher VF (0.65 V typ. at 15 A), same package, AEC-Q101 qualified, but lower IFSM (180 A vs. 220 A). | Suitable for less demanding surge environments; reduced clamping margin in solenoid driver applications. | Prefer when cost sensitivity outweighs need for maximum surge robustness in non-critical actuators. |
Compared with MBR3045CT and VS-30CPH045, STPS3045CGY-TR uniquely combines AEC-Q101 qualification, lowest VF (0.57 V max), highest IFSM (220 A), and verified 10,000 V/µs dV/dt immunity-making it the only choice for safety-critical 12/24 V automotive power stages requiring zero derating at 175 °C junction.
Availability
STPS3045CGY-TR is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, electric power steering systems, and infotainment USB-C PD interfaces requiring stable component supply across automotive production lifecycles.
Supply support for STPS3045CGY-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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
The STPS series targets high-reliability automotive power conversion, with STPS3045CGY-TR specifically engineered for low-loss, high-frequency rectification in AEC-Q101-compliant 12 V/24 V/48 V subsystems where thermal and surge robustness are non-negotiable.
FAQ
What is the thermal pad mounting requirement for STPS3045CGY-TR?
The D2PAK package features an exposed copper thermal pad (tab) that must be soldered to a minimum 10 cm² copper pour on the PCB with ≥4 thermal vias (0.3 mm diameter, filled) connecting to internal ground planes. This achieves Rth(j–a) ≈ 15 °C/W, enabling full 15 A per diode rating at 75 °C ambient.
Can STPS3045CGY-TR replace a single-diode Schottky in existing designs?
No-it is a dual-center-tap device with three terminals (A1, A2, K). Replacing a single diode requires either using only one anode (A1 or A2) with K, which halves current capacity, or redesigning the circuit to exploit the dual-anode topology for improved efficiency or redundancy.
Is the 6000 W avalanche rating applicable to both diodes simultaneously?
Yes-the 6000 W rating applies per diode under single-pulse conditions (tp = 1 µs, Tj = 25 °C). When both diodes conduct simultaneously, total avalanche energy remains 6000 W per diode, but thermal coupling requires derating total dissipation using the formula ΔTj = P₁×1.60 + P₂×0.10 to avoid exceeding 175 °C junction limit.
Does STPS3045CGY-TR support reflow soldering per JEDEC J-STD-020?
Yes-it is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature of 260 °C for 30 seconds. The D2PAK package withstands this profile without delamination or voiding when using standard SnAgCu paste and controlled ramp rates (≤3 °C/s preheat, ≤1.5 °C/s soak).
STPS3045CGY-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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 45 V
- Operating Temperature - Junction:
- 200°C (Max)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS3045CGY-TR FAQ
1.How can I place an order for STPS3045CGY-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS3045CGY-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 STPS3045CGY-TR reliable?
The price and inventory of STPS3045CGY-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS3045CGY-TR is usually 5 days.
3.What payment methods are accepted for STPS3045CGY-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS3045CGY-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS3045CGY-TR?
STPS3045CGY-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS3045CGY-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 STPS3045CGY-TR?
For technical support, including STPS3045CGY-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS3045CGY-TR requirements.
6.How does Aetrix verify that STPS3045CGY-TR is sourced from the original manufacturer or authorized distributors?
All STPS3045CGY-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 STPS3045CGY-TR meets industry standards.
7.What is the process for return or replacement of STPS3045CGY-TR?
All STPS3045CGY-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS3045CGY-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 STPS3045CGY-TR part is unused and in its original packaging.
Return procedure for STPS3045CGY-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS3045CGY-TR Tags
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