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STMicroelectronics SPDCPOE03
- Part No.:
- SPDCPOE03
- Manufacturer:
- STMicroelectronics
- Category:
- DC DC Converters
- Package:
- Module
- Datasheet:
-
SPDCPOE03.pdf
- Description:
- DC DC CONVERTER 3.3V 10W
- Quantity:
- Payment:
- Shipping:
Inventory:3,881
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Product details
Overview
SPDCPOE03 from STMicroelectronics is an IEEE 802.3af-compliant, isolated Power over Ethernet (PoE) power module for powered devices (PD), delivering 3.3 V / 3 A (10 W) from 38.5–60 V PoE input. It integrates PD detection/classification (Class 0), input diode bridges for data/spare pair support, transient suppression, and a current-mode PVM DC-DC controller. Used in remote IP cameras and access control systems.
For engineers reviewing the SPDCPOE03 datasheet, SPDCPOE03 pinout, SPDCPOE03 application, or SPDCPOE03 equivalent, key selection factors include its 1500 VDC input/output isolation, ±5% output regulation under transient load steps, SELV compliance, and vertical through-hole mechanical footprint (86 × 24.2 × 17 mm).
Technical Context
The SPDCPOE03 implements full IEEE 802.3af PD functionality-including signature detection (25 kΩ), classification (Class 0, 0–12.96 W), and under-voltage lockout-with integrated dual-path Ethernet interface (data pair TX+/TX−/RX+/RX− and spare pair SP1/SP2). Its internal current-mode PVM controller regulates 3.3 V output with soft-start and short-circuit protection.
Input transient suppression and EMI filtering are embedded to maintain signal integrity on Ethernet lines. The module maintains SELV limits on both input and output sides and achieves ≤1% RMS ripple at full load while operating across −40 °C to +70 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 38.5 V to 60 V - supports full IEEE 802.3af PSE output range including margin for cable drop |
| Output voltage | 3.3 V ±5% - tightly regulated rail for low-voltage logic and sensors in remote PDs |
| Max output power | 10 W - rated for Class 0 PD operation per IEEE 802.3af |
| Isolation rating | 1500 VDC input/output - enables safe separation between Ethernet PHY and PD circuitry |
| Ripple | ≤1% RMS - ensures clean supply for noise-sensitive Ethernet PHY and MCU subsystems |
| Operating temperature | −40 °C to +70 °C - validated for industrial indoor/outdoor deployment without derating |
| Transient response | ±5% deviation during ½-load to full-load step - maintains system stability during burst-mode operation |
Pinout & Package
Vertical through-hole (THT) package measuring 86 × 24.2 × 17 mm, RoHS-compliant and UL 94V-0 rated. Designed for board-edge mounting with Ethernet magnetics and local PD circuitry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| J1-1, J1-2, J1-3, J1-6 | Ethernet input (data pair) | Accepts 10/100BASE-TX differential signals and PoE power via MDI pins |
| J1-4, J1-5, J1-7, J1-8 | Ethernet input (spare pair) | Supports alternative PoE delivery using spare pairs (Mode B), enabling compatibility with legacy PSEs |
| J2-1, J2-2, J2-3, J2-6 | Ethernet output (data pair) | Passes undisturbed Ethernet signals to downstream PHY; no active switching or buffering |
| J3-1, J3-2 | DC output positive | Delivers regulated 3.3 V to PD load; dual pins reduce trace resistance and thermal rise |
| J3-3, J3-4 | DC output return | Provides dedicated low-impedance ground path for output current return and noise control |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PD detection & classification | Meets IEEE 802.3af signature (25 kΩ) and Class 0 current draw (0–12.96 W), eliminating external resistor networks |
| Dual-path Ethernet interface | Simultaneous support for data-pair (Mode A) and spare-pair (Mode B) PoE injection without external switch or reconfiguration |
| Input transient suppressor | Clamps fast-rising surges (e.g., lightning-induced) on Ethernet lines to protect downstream PHY and DC-DC stage |
| EMI-filtered design | Embedded filtering prevents conducted noise from coupling into Ethernet data lanes, preserving 100BASE-TX signal integrity |
| SELV-compliant isolation | Maintains safety extra-low voltage limits on both input and output sides, satisfying IEC 60950-1 and EN 62368-1 requirements |
Applications
| IP Security Cameras | Access Control Terminals |
|---|---|
Use Scenario: Compact outdoor camera unit powered and networked via single Cat5e cable in building infrastructure. IC Role / Device Role / Timing Role: PoE PD interface and isolated 3.3 V power source for image sensor, ISP, and Wi-Fi SoC. Use Value: Eliminates local AC adapter; 1500 VDC isolation protects camera electronics from ground loops and surge events on long cable runs. | Use Scenario: Wall-mounted door entry panel with RFID reader, keypad, and status LED, deployed in multi-tenant office buildings. IC Role / Device Role / Timing Role: Primary DC power converter extracting 3.3 V from PoE to run microcontroller, secure element, and bi-directional communication IC. Use Value: Enables centralized power management and firmware updates over Ethernet; ±5% output regulation sustains reliable operation during electromagnetic interference from nearby access readers. |
| Wireless Access Points | Environmental Telemetry Nodes |
Use Scenario: Indoor 802.11n AP mounted in ceiling plenum, drawing power and data from upstream switch. IC Role / Device Role / Timing Role: Isolated PoE power front-end supplying clean 3.3 V to RF transceiver, baseband processor, and memory. Use Value: ≤1% RMS ripple prevents phase noise degradation in 2.4 GHz RF section; EMI filtering avoids packet loss during concurrent transmit/receive. | Use Scenario: Remote sensor node monitoring temperature/humidity in HVAC ducts or utility closets, installed without local power access. IC Role / Device Role / Timing Role: Power conversion and safety isolation block enabling long-term operation from PoE infrastructure. Use Value: −40 °C to +70 °C operating range supports deployment in unconditioned spaces; soft-start prevents inrush current tripping upstream PSE current limit. |
Availability
SPDCPOE03 is available at Aetrix Electronics and suitable for IP security cameras, access control terminals, and wireless access points requiring stable component supply in industrial and commercial PoE deployments.
Supply support for SPDCPOE03 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, digital, and mixed-signal ICs for industrial, automotive, and consumer applications.
The SPDCPOE03 belongs to ST's PoE PD interface module product line, engineered specifically to simplify certified IEEE 802.3af integration in space-constrained, low-power remote devices.
FAQ
What Ethernet cabling configurations does SPDCPOE03 support?
SPDCPOE03 supports both Mode A (power on data pairs: pins 1/2 and 3/6) and Mode B (power on spare pairs: pins 4/5 and 7/8) per IEEE 802.3af. Its J1 connector accepts all eight Ethernet lines, with internal diode bridges automatically selecting the active power path without external configuration.
Does SPDCPOE03 require external components for IEEE 802.3af compliance?
No external components are required for basic IEEE 802.3af PD detection, classification, or power extraction. The module integrates the 25 kΩ detection signature, Class 0 current draw circuitry, input transient suppressor, and EMI filter. Only output capacitors (per datasheet recommendations) and optional input bulk capacitance are needed for full implementation.
Can SPDCPOE03 be used with non-standard or proprietary PoE implementations?
SPDCPOE03 is designed exclusively for IEEE 802.3af-compliant PSEs. It does not support higher-power standards (e.g., 802.3at or 802.3bt) or non-standard "passive" PoE schemes. Input UVLO and signature verification ensure it only activates when valid 802.3af handshaking occurs, preventing damage or misoperation.
How is thermal performance managed in the SPDCPOE03's vertical THT package?
The SPDCPOE03 relies on PCB copper area and natural convection for thermal dissipation. Its 10 W output is optimized for low ambient rise; the 86 × 24.2 mm footprint provides ample surface area for heatsinking via thermal vias and inner-layer copper pours. Derating is not required below +70 °C ambient when mounted vertically with ≥200 mm² of 2-oz copper on primary layer.
SPDCPOE03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Isolated PoE (Power over Ethernet) Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 38.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output 1:
- 3.3V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- 10 W
- Voltage - Isolation:
- 1.5 kV
- Applications:
- ITE (Commercial)
- Features:
- SCP, UVLO
- Operating Temperature:
- -40°C ~ 70°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
SPDCPOE03 FAQ
1.How can I place an order for SPDCPOE03 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPDCPOE03 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 SPDCPOE03 reliable?
The price and inventory of SPDCPOE03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPDCPOE03 is usually 5 days.
3.What payment methods are accepted for SPDCPOE03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPDCPOE03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPDCPOE03?
SPDCPOE03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPDCPOE03 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 SPDCPOE03?
For technical support, including SPDCPOE03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPDCPOE03 requirements.
6.How does Aetrix verify that SPDCPOE03 is sourced from the original manufacturer or authorized distributors?
All SPDCPOE03 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 SPDCPOE03 meets industry standards.
7.What is the process for return or replacement of SPDCPOE03?
All SPDCPOE03 units undergo pre-shipment inspection (PSI). If there is an issue with SPDCPOE03, 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 SPDCPOE03 part is unused and in its original packaging.
Return procedure for SPDCPOE03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPDCPOE03 Tags
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1S4E_0505S1.5U
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