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STMicroelectronics STPS3045CG-TR
- Part No.:
- STPS3045CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS3045CG-TR.pdf
- Description:
- DIODE ARRAY SCHOTT 45V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,008
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Product details
Overview
STPS3045CG-TR from STMicroelectronics is a dual center-tap Schottky rectifier in D²PAK package, rated for 45 V repetitive peak reverse voltage and 2 × 15 A average forward current per diode, with typical forward voltage of 0.5 V at 15 A and 125 °C - optimized for low-voltage, high-frequency DC/DC converters and synchronous rectification in SMPS.
For engineers reviewing the STPS3045CG-TR datasheet, STPS3045CG-TR pinout, STPS3045CG-TR application, or STPS3045CG-TR equivalent, key selection criteria include avalanche rating (430 W peak), junction-to-case thermal resistance (0.95 °C/W total), dual-diode configuration with common cathode, and ECOPACK®2 compliance for industrial power supply design.
Technical Context
This dual Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling center-tapped transformer secondary rectification without external parallel diodes. Its negligible switching losses and extremely fast recovery support operation above 500 kHz in resonant and phase-shifted full-bridge topologies.
The device is avalanche-rated to 430 W (10 µs pulse, Tj = 125 °C) and supports continuous forward conduction up to 200 °C junction temperature in D²PAK package - a critical capability for high-power-density, thermally constrained designs where thermal runaway avoidance is enforced via (dPtot/dTj) < (1/Rth(j-a)) condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - maximum reverse blocking voltage per diode; enables use in 36 V nominal bus systems with safety margin. |
| IF(AV) per diode | 15 A - average forward current rating per anode at TC = 155 °C; supports 30 A total device output in dual-path configurations. |
| VF (typ.) | 0.5 V @ 15 A, 125 °C - low conduction loss directly reduces power dissipation and improves efficiency in high-current, low-VF applications. |
| Rth(j-c) total | 0.95 °C/W - thermal resistance from junction to case for both diodes; enables direct heatsink mounting with predictable thermal performance. |
| PARM(1) | 430 W - peak repetitive avalanche power (10 µs, Tj = 125 °C); allows safe energy absorption during transient overvoltage events. |
| Tj(max) forward mode | 200 °C - maximum junction temperature under DC forward bias (D²PAK only); extends operational headroom in compact, high-ambient environments. |
| ECOPACK®2 | Compliant - meets RoHS, halogen-free, and material declaration requirements for industrial and automotive-qualified production. |
Pinout & Package
D²PAK (TO-263) surface-mount package with exposed metal tab for thermal and electrical connection to cathode; three terminals: two anodes (A1, A2) and one common cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | First Schottky diode anode; connects to one leg of center-tapped transformer secondary or split-rail input. |
| A2 | Anode 2 | Second Schottky diode anode; connects to complementary leg of center-tapped winding or alternate input path. |
| K | Common Cathode | Shared cathode node; serves as output rail connection and primary thermal interface to PCB copper or heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Dual center-tap configuration | Eliminates need for discrete dual-diode assembly; reduces layout area and parasitic inductance in high-frequency rectifiers. |
| Avalanche energy rating | 430 W peak (10 µs) enables robustness against inductive kickback in flyback and LLC resonant converters without snubbers. |
| Low VF and Rth(j-c) | 0.5 V VF + 0.95 °C/W thermal resistance yields <1.5 W conduction loss at 15 A, minimizing heatsink requirements. |
| High Tj capability | 200 °C max junction temperature in forward mode allows sustained operation in sealed enclosures or high-ambient industrial settings. |
Applications
| Server VRM Output Rectification | Industrial DC/DC Converter Secondary |
|---|---|
|
Use Scenario: High-current, low-voltage output stage of 48 V–12 V server VRM delivering >100 A with <10 mV ripple. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replacing synchronous MOSFETs in cost-sensitive, high-efficiency buck-derived topologies. Use Value: 0.5 V VF minimizes conduction loss at 15 A per anode; D²PAK thermal interface sustains 175 °C junction under continuous load. |
Use Scenario: 24 V input to 5 V/3.3 V isolated DC/DC module for PLC I/O modules operating at 70 °C ambient. IC Role / Device Role / Timing Role: Center-tap rectifier on secondary side of push-pull transformer, handling bidirectional current paths. Use Value: Avalanche rating absorbs leakage inductance spikes; 200 °C forward-mode Tj tolerance ensures reliability without forced air cooling. |
| Solar Microinverter DC Link | Automotive ADAS Power Supply |
|
Use Scenario: DC/DC stage stepping down PV string voltage (60–150 V) to 12 V for microinverter control logic and gate drivers. IC Role / Device Role / Timing Role: Low-loss freewheeling and polarity protection diode in non-isolated buck-boost converter. Use Value: Negligible switching losses enable >95% efficiency at 250 kHz; ECOPACK®2 compliance satisfies solar equipment environmental standards. |
Use Scenario: 12 V battery-fed power supply for radar ECU, requiring high reliability across -40 °C to +105 °C ambient. IC Role / Device Role / Timing Role: Polarity protection and reverse-battery safeguard at main DC input, before LDO and PMIC stages. Use Value: 45 V VRRM provides 2× margin over 12 V system transients; dual-diode layout simplifies PCB routing and reduces BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-30CPH045 | Single-diode TO-247, 45 V/30 A avg., VF = 0.52 V @ 15 A, Rth(j-c) = 0.9 °C/W | Lacks dual-anode center-tap topology; requires two devices for same function | Preferred when discrete layout flexibility or higher surge rating (IFS M = 300 A) is prioritized over integration. |
| ON Semiconductor SB340-E3/54 | Single-diode DO-201AD, 40 V/3 A avg., VF = 0.5 V @ 3 A, Rth(j-c) = 10 °C/W | Lower current rating, no avalanche rating, not surface-mount | Only suitable for prototyping or low-power auxiliary rails; not a functional replacement for STPS3045CG-TR's dual 15 A capability. |
Compared with VS-30CPH045 and SB340-E3/54, STPS3045CG-TR uniquely delivers integrated dual-anode rectification in D²PAK with 200 °C forward-mode Tj and 430 W avalanche power - making it irreplaceable in space-constrained, high-reliability center-tap SMPS designs.
Availability
STPS3045CG-TR is available at Aetrix Electronics and suitable for server VRMs, industrial DC/DC converters, solar microinverters, and automotive ADAS power supplies requiring stable component supply and long-term industrial lifecycle support.
Supply support for STPS3045CG-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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The STPS3045C series belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for high-frequency switch-mode power conversion where low VF, fast recovery, and avalanche ruggedness are mandatory.
FAQ
What is the maximum continuous junction temperature for STPS3045CG-TR in forward conduction mode?
The maximum operating junction temperature is 200 °C under DC forward current with no reverse bias applied - a D²PAK-specific rating confirmed in Table 2 note (2) of the datasheet. This exceeds the standard 175 °C limit and applies only when the device operates in pure forward conduction for ≥1 hour.
Is STPS3045CG-TR pin-compatible with other STPS3045x variants?
No - STPS3045CG-TR uses the D²PAK (TO-263) package with three terminals (A1, A2, K), while STPS3045CT (TO-220AB) and STPS3045CW (TO-247) have different footprints, thermal interfaces, and mechanical mounting. Pin functions are identical, but physical layout and soldering requirements differ.
Does STPS3045CG-TR require a heatsink for 15 A per diode operation?
Yes - at 15 A per diode and 125 °C junction temperature, power dissipation is ~7.5 W per diode (based on VF = 0.5 V). With Rth(j-c) = 0.95 °C/W total, a heatsink maintaining case temperature ≤85 °C is required to keep Tj ≤175 °C; PCB copper alone is insufficient for sustained full-load operation.
How is avalanche capability validated for STPS3045CG-TR?
Avalanche validation follows STMicroelectronics Application Note AN1768, measuring single-pulse energy absorption at 10 µs with Tj = 125 °C. The 430 W rating corresponds to 4.3 mJ per pulse, verified through controlled inductive switching tests - not simulated or extrapolated values.
STPS3045CG-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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS3045CG-TR FAQ
1.How can I place an order for STPS3045CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS3045CG-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 STPS3045CG-TR reliable?
The price and inventory of STPS3045CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS3045CG-TR is usually 5 days.
3.What payment methods are accepted for STPS3045CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS3045CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS3045CG-TR?
STPS3045CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS3045CG-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 STPS3045CG-TR?
For technical support, including STPS3045CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS3045CG-TR requirements.
6.How does Aetrix verify that STPS3045CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS3045CG-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 STPS3045CG-TR meets industry standards.
7.What is the process for return or replacement of STPS3045CG-TR?
All STPS3045CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS3045CG-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 STPS3045CG-TR part is unused and in its original packaging.
Return procedure for STPS3045CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS3045CG-TR Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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