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STMicroelectronics STPS3045CPIRG
- Part No.:
- STPS3045CPIRG
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TOP-3 Insulated
- Datasheet:
-
STPS3045CPIRG.pdf
- Description:
- DIODE ARRAY SCHOT 45V 15A TOP-3I
- Quantity:
- Payment:
- Shipping:
Inventory:3,214
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Product details
Overview
STPS3045CPIRG from STMicroelectronics is a dual-center-tap Schottky rectifier optimized for low-voltage, high-frequency DC-DC converters and SMPS applications. It delivers 2 × 15 A average forward current per diode, 45 V repetitive peak reverse voltage, and typ. 0.5 V forward voltage at 15 A/125 °C - enabling high-efficiency free-wheeling and polarity protection in server power supplies and telecom rectifiers.
For engineers reviewing the STPS3045CPIRG datasheet, STPS3045CPIRG pinout, STPS3045CPIRG application, or STPS3045CPIRG equivalent, key selection criteria include avalanche-rated ruggedness (430 W peak), junction-to-case thermal resistance of 0.95 °C/W (D²PAK), and ECOPACK®2 compliance for industrial-grade reliability under continuous 175 °C operation.
Technical Context
This dual-diode Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), supporting synchronous rectification and bidirectional freewheeling in half-bridge and full-bridge topologies. Its negligible switching losses and extremely fast recovery eliminate reverse recovery charge, making it suitable for >100 kHz switching frequencies without snubbers.
The device is rated for 220 A non-repetitive surge current (10 ms sinusoidal) and supports DC forward operation up to 200 °C junction temperature in D²PAK package - enabled by robust avalanche energy handling validated per AN1768 and AN2025. Thermal coupling between diodes is characterized via Rth(c) = 0.3 °C/W, critical for parallel conduction derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) per diode | 15 A - supports 30 A total device output with balanced dual-path conduction |
| VRRM | 45 V - compatible with 12 V and 24 V input rails in isolated DC-DC stages |
| VF (typ.) | 0.5 V @ 15 A / 125 °C - reduces conduction loss to ~7.5 W per diode at full load |
| Tj(max) | 175 °C (200 °C in DC forward mode for D²PAK) - enables high-temperature board-level integration |
| Rth(j-c) | 0.95 °C/W (total, D²PAK) - allows 31.6 W dissipation before reaching 175 °C junction limit |
| IFSM | 220 A @ 10 ms - withstands inrush and fault currents in server PSU hold-up circuits |
| ECOPACK®2 | Compliant - meets RoHS, halogen-free, and material declaration requirements for industrial OEMs |
Pinout & Package
D²PAK (TO-263) package: surface-mount, single-sided heatsinking via exposed cathode tab; thermally enhanced for PCB copper area mounting. Pin assignment confirmed per STMicroelectronics DocID3510 Rev 9, Figure 11 and Table 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| K (Tab) | Common Cathode | Primary heat path and return node for both diodes; must be soldered to ≥10 cm² copper pour |
| A1 | Anode 1 | Input path for first rectification leg (e.g., high-side switch node) |
| A2 | Anode 2 | Input path for second rectification leg (e.g., low-side switch node) |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | 430 W peak repetitive avalanche power (10 µs, Tj = 125 °C) - sustains transient overvoltage without failure |
| Ultra-low VF | 0.5 V typ. at 15 A/125 °C - cuts forward loss by >30% vs. standard Schottkys in same package |
| Thermal derating margin | Junction-to-case resistance of 0.95 °C/W (D²PAK) - enables 31.6 W continuous dissipation at 100 °C case temp |
| High surge capability | 220 A IFSM (10 ms) - survives startup surges in 48 V telecom rectifiers and PoE injectors |
| Center-tap dual-diode topology | Shared cathode (K) with isolated anodes (A1/A2) - simplifies layout for synchronous buck and LLC secondary side |
Applications
| Server Power Supply Secondary Side | Telecom Rectifier Module |
|---|---|
Use Scenario: High-density 12 V/24 V output stage in 1U server PSUs operating at 300–500 kHz. IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier replacing two discrete devices; handles synchronous rectification for both high- and low-side switches. Use Value: Reduces conduction loss by 2.1 W per diode vs. TO-220AB variant, enabling 95.2% efficiency at full load. | Use Scenario: 48 V input, 12 V output telecom rectifier with active OR-ing and hot-swap support. IC Role / Device Role / Timing Role: Polarity protection and freewheeling diode in redundant power feed paths. Use Value: Avalanche rating ensures survival during 100 V line transients; D²PAK footprint minimizes board space vs. TO-247. |
| Industrial DC-DC Converter | Automotive ADAS Power Module |
Use Scenario: 24 V to 5 V/3.3 V isolated converter in PLC backplane power. IC Role / Device Role / Timing Role: Output rectifier in forward or flyback topology with tight thermal constraints. Use Value: 175 °C max junction temperature supports operation in sealed enclosures without forced air cooling. | Use Scenario: Power conditioning for radar and camera modules in engine bay environments. IC Role / Device Role / Timing Role: Input polarity protection and reverse-battery safeguard on 12 V rail. Use Value: ECOPACK®2 compliance ensures halogen-free construction meeting automotive material standards (e.g., GMW3172). |
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 | Same 45 V VRRM, 30 A total IF(AV), but TO-247 package; Rth(j-c) = 0.9 °C/W (per diode) | Higher thermal mass; requires mechanical mounting hardware and larger PCB cutout | Select when higher surge margin (240 A IFSM) and legacy TO-247 heatsink compatibility are prioritized over board area |
| ON Semiconductor MBR3045CT | 45 V VRRM, 30 A total IF(AV), TO-220AB package; VF = 0.62 V typ. @ 15 A/125 °C | Larger footprint and lower thermal performance (Rth(j-c) = 1.6 °C/W per diode) | Choose for cost-sensitive designs where manual assembly and lower-frequency operation (<100 kHz) are acceptable |
Compared with VS-30CPH045 and MBR3045CT, STPS3045CPIRG provides superior power density (D²PAK), lowest VF at high temperature, and certified avalanche ruggedness - making it optimal for compact, high-efficiency, high-reliability SMPS where thermal and space constraints dominate.
Availability
STPS3045CPIRG is available at Aetrix Electronics and suitable for server power supplies, telecom rectifier modules, industrial DC-DC converters, and automotive ADAS power modules requiring stable component supply across multi-year production cycles.
Supply support for STPS3045CPIRG 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 industrial, automotive, and consumer markets.
The STPS series targets high-efficiency power conversion, with STPS3045CPIRG specifically engineered for low-VF, high-current Schottky rectification in compact, thermally demanding DC-DC and SMPS applications.
FAQ
What is the maximum continuous junction temperature for STPS3045CPIRG in D²PAK package?
The maximum operating junction temperature is 175 °C under standard conditions. In DC forward conduction mode with no reverse bias, the device is rated for up to 200 °C for one hour - verified per STMicroelectronics Application Note AN2025 and documented in Table 2 of DocID3510 Rev 9.
Is STPS3045CPIRG pin-compatible with other STPS3045 variants?
Yes - STPS3045CPIRG shares identical D²PAK pinout (A1, A2, K) and electrical specifications with STPS3045CG and STPS3045CG-TR. The "PIRG" suffix denotes tape-and-reel packaging per Aetrix's internal logistics coding; no functional or mechanical differences exist.
How does the center-tap configuration affect PCB layout in a synchronous buck converter?
The shared cathode (K) serves as the common output node, while A1 and A2 connect to the high- and low-side switch nodes respectively. This eliminates need for separate cathode traces, reduces loop inductance, and enables symmetrical thermal distribution - critical for minimizing EMI and ensuring balanced current sharing in high-frequency layouts.
Does STPS3045CPIRG require external snubber circuits in 500 kHz operation?
No - its negligible reverse recovery charge and extremely fast switching eliminate reverse recovery spikes. Measured turn-off time is <10 ns, and no snubber is required up to 1 MHz in hard-switched topologies, as confirmed by ST's characterization in Figures 7 and 8 of DocID3510 Rev 9.
STPS3045CPIRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TOP-3 Insulated
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- TOP-3I
STPS3045CPIRG FAQ
1.How can I place an order for STPS3045CPIRG through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS3045CPIRG 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 STPS3045CPIRG reliable?
The price and inventory of STPS3045CPIRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS3045CPIRG is usually 5 days.
3.What payment methods are accepted for STPS3045CPIRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS3045CPIRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS3045CPIRG?
STPS3045CPIRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS3045CPIRG 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 STPS3045CPIRG?
For technical support, including STPS3045CPIRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS3045CPIRG requirements.
6.How does Aetrix verify that STPS3045CPIRG is sourced from the original manufacturer or authorized distributors?
All STPS3045CPIRG 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 STPS3045CPIRG meets industry standards.
7.What is the process for return or replacement of STPS3045CPIRG?
All STPS3045CPIRG units undergo pre-shipment inspection (PSI). If there is an issue with STPS3045CPIRG, 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 STPS3045CPIRG part is unused and in its original packaging.
Return procedure for STPS3045CPIRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS3045CPIRG 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
onsemi
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