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Semtech Corporation UCLAMP0502P.TCT
- Part No.:
- UCLAMP0502P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
UCLAMP0502P.TCT.pdf
- Description:
- TVS DIODE 5VWM 12.5VC SLP1006P3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
UCLAMP0502P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 5V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6mm × 1.6mm DFN-6 package.
For engineers reviewing the UCLAMP0502P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low junction capacitance (12pF), and compatibility with USB 2.0, HDMI, and industrial control signal lines requiring robust ±8kV contact ESD protection.
Technical Context
The UCLAMP0502P.TCT uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (7.5V typ.) from 1A to 24A (tp = 8/20μs) due to decreasing RDS(on).
It features bidirectional protection with symmetric clamping, supports unsymmetrical line configurations per IEC 61000-4-5, and achieves ±8kV contact/±15kV air ESD per IEC 61000-4-2 - verified across full operating temperature range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5V - matches standard USB 2.0, HDMI, and industrial logic-level signal rails without overvoltage stress. |
| Clamping Voltage (IPP = 24A) | 7.5V max - ensures protected ICs (e.g., USB transceivers, microcontrollers) remain below absolute maximum ratings during surge events. |
| ESD Withstand (IEC 61000-4-2) | ±8kV contact / ±15kV air - exceeds Level 4 immunity requirements for consumer and industrial end-equipment. |
| Junction Capacitance | 12pF @ VR = 5V - preserves signal integrity on high-speed data lines up to 480 Mbps (USB 2.0) with minimal rise-time degradation. |
| Dynamic Resistance | 18 mΩ - enables stable clamping under fast-rising transients (e.g., EFT bursts) and minimizes voltage overshoot during turn-on. |
| Peak Pulse Current (8/20μs) | 24A - meets IEC 61000-4-5 Level 3 (±1kV, RS = 42Ω) for industrial port protection without external series impedance. |
| Operating Temperature | –40°C to +125°C - supports deployment in automotive cabin modules, industrial PLCs, and outdoor IoT gateways. |
Pinout & Package
UCLAMP0502P.TCT is housed in a Pb-free, RoHS-compliant 1.6mm × 1.6mm × 0.55mm DFN-6 package with exposed thermal pad (no solder mask defined). All six terminals are electrically active: three input pins (IN) and three ground pins (GND), requiring parallel connection for full surge rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to solid ground plane via multiple vias to sustain 24A surge current. |
| 4, 5, 6 | IN | Protected line interface; pins 4–6 are internally shorted and must be tied together externally to the signal/power line being safeguarded. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with near-constant clamping voltage (7.5V ±0.3V) across 1–24A and –40°C to +125°C. |
| Ultra-low dynamic resistance | 18 mΩ enables sub-100ns response and limits voltage overshoot during nanosecond-scale ESD events. |
| Low signal-line capacitance | 12pF allows integration on USB 2.0, HDMI, and CAN FD data paths without degrading eye diagram margin. |
| High-energy surge rating | 24A (8/20μs) and ±8kV contact ESD support compliance with IEC 61000-4-2/4-4/4-5 in single-device solutions. |
| Thermal-stable operation | No clamping voltage drift or IPP derating required across full industrial temperature range - eliminates design margin uncertainty. |
Applications
| USB 2.0 Data Line Protection | HDMI DDC/CEC Channel Protection |
|---|---|
Use Scenario: Protecting D+ and D– lines of USB 2.0 ports against ESD and lightning-induced surges in docking stations and embedded hosts. IC Role / Device Role / Timing Role: Bidirectional transient shunt placed between differential pair and USB PHY, operating transparently during normal 480 Mbps signaling. Use Value: 12pF capacitance avoids signal integrity loss; 7.5V clamping prevents damage to PHY's 5.5V absolute max rating while sustaining ±8kV contact ESD. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines against hot-plug ESD and cable discharge in AV receivers and set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance clamp on 3.3V/5V bidirectional control bus, preserving I²C timing margins up to 400 kHz. Use Value: 12pF load keeps rise/fall times within I²C spec; ±8kV ESD rating exceeds HDMI Compliance Test Plan v2.1 requirements. |
| Industrial Sensor Interface Protection | Smart Meter Communication Port |
Use Scenario: Shielding analog/digital sensor inputs (e.g., 4–20mA loop, RS-485 stubs) from field-induced transients in factory automation systems. IC Role / Device Role / Timing Role: Standalone EOS suppressor on 5V supply or signal lines feeding ADCs, isolators, or microcontroller GPIOs. Use Value: 24A surge rating handles IEC 61000-4-5 Level 3; –40°C to +125°C operation ensures reliability in uncontrolled cabinet environments. |
Use Scenario: Protecting optical or RS-485 communication ports on utility smart meters exposed to lightning and grid switching noise. IC Role / Device Role / Timing Role: Primary front-end clamp on meter's 5V VCC or data line, coordinated with secondary TVS for multi-stage protection. Use Value: 7.5V clamping prevents latch-up in meter SoCs; RoHS-compliant DFN-6 footprint saves space on constrained meter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DPYR | 4-channel, 5V-rated, 12pF/channel, ±12kV ESD, but 12V clamping at 1A (IEC 61000-4-2); no 24A surge rating. | Designed for multi-line protection (e.g., USB ID/DM/D+/Vbus); not rated for IEC 61000-4-5 surge. | Select when protecting ≥2 lines simultaneously and ESD-only immunity suffices; avoid for industrial surge-critical ports. |
| SMAJ5.0A | Unidirectional 5V TVS diode, 100W peak power, 9.2V clamping at 11.7A, 100pF capacitance, no temperature-stable clamping. | Lower cost, through-hole or SMA package; intended for board-level power rail clamping, not high-speed data lines. | Choose only for non-signal applications like 5V supply rail protection where capacitance and clamping stability are irrelevant. |
Compared with TPD4E001DPYR and SMAJ5.0A, UCLAMP0502P.TCT uniquely combines low capacitance (12pF), flat clamping (7.5V up to 24A), and full IEC 61000-4-5/4-2/4-4 compliance in a single 1.6mm × 1.6mm device - making it optimal for space-constrained, high-reliability signal-line protection where both ESD and surge immunity are mandatory.
Availability
UCLAMP0502P.TCT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI control channel hardening, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle assurance.
Supply support for UCLAMP0502P.TCT 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for precision sensing, protection, and connectivity.
The UCLAMP series targets high-speed digital interface protection, delivering superior clamping stability and low capacitance for USB, HDMI, DisplayPort, and industrial control applications where signal fidelity and surge resilience are co-critical.
FAQ
What is the maximum clamping voltage of UCLAMP0502P.TCT at 24A surge current?
The UCLAMP0502P.TCT clamps at 7.5V maximum when subjected to a 24A, 8/20μs surge current per IEC 61000-4-5. This value is guaranteed across –40°C to +125°C and reflects the device's FET-based architecture, which maintains near-constant voltage due to decreasing RDS(on) under increasing current - unlike conventional TVS diodes whose clamping rises linearly with current.
Can UCLAMP0502P.TCT be used on USB 2.0 high-speed (480 Mbps) data lines?
Yes, UCLAMP0502P.TCT is qualified for USB 2.0 data line protection. Its 12pF junction capacitance at 5V reverse bias introduces negligible signal distortion, preserving eye diagram integrity and meeting USB-IF electrical compliance requirements. The device's 7.5V clamping also stays safely below the 5.5V absolute maximum rating of most USB transceivers during ±8kV ESD events.
Does UCLAMP0502P.TCT require a thermal pad or heatsink on the PCB?
No, UCLAMP0502P.TCT does not require a thermal pad or external heatsink. Its DFN-6 package dissipates surge energy primarily through conduction into the PCB ground plane via pins 1–3. Layout guidelines specify connecting all three GND pins to a solid ground plane using multiple vias - sufficient for 24A transient dissipation without thermal derating or additional copper area.
How does UCLAMP0502P.TCT differ from standard TVS diodes in clamping behavior?
UCLAMP0502P.TCT uses a triggered FET architecture instead of a pn-junction, resulting in flat clamping voltage (7.5V) across its full 1–24A surge range and stable performance from –40°C to +125°C. Standard TVS diodes exhibit rising clamping (VC = VBR + IPP × RDYN) with current and temperature - often exceeding safe limits for sensitive 5V ICs at elevated ambient temperatures or high surge currents.
Is UCLAMP0502P.TCT compliant with RoHS and halogen-free standards?
Yes, UCLAMP0502P.TCT is fully RoHS-compliant and halogen-free per IEC 61249-2-21. Its DFN-6 package uses lead-free terminal finish and UL 94V-0 molding compound, satisfying environmental requirements for industrial, medical, and consumer electronics sold in EU, China, and North America markets.
UCLAMP0502P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 2A (8/20µs)
- Power - Peak Pulse:
- 25W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P3
UCLAMP0502P.TCT FAQ
1.How can I place an order for UCLAMP0502P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0502P.TCT 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 UCLAMP0502P.TCT reliable?
The price and inventory of UCLAMP0502P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0502P.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP0502P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0502P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0502P.TCT?
UCLAMP0502P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0502P.TCT 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 UCLAMP0502P.TCT?
For technical support, including UCLAMP0502P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0502P.TCT requirements.
6.How does Aetrix verify that UCLAMP0502P.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0502P.TCT 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 UCLAMP0502P.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP0502P.TCT?
All UCLAMP0502P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0502P.TCT, 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 UCLAMP0502P.TCT part is unused and in its original packaging.
Return procedure for UCLAMP0502P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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