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Semtech Corporation UCLAMP0502T.TCT
- Part No.:
- UCLAMP0502T.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
UCLAMP0502T.TCT.pdf
- Description:
- TVS DIODE 5VWM 12.5VC SLP1006P3T
- Quantity:
- Payment:
- Shipping:
Inventory:2,170
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Product details
Overview
UCLAMP0502T.TCT from Semtech is a transient diverting suppressor designed for EOS/ESD protection of single 5V I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 24A peak pulse current (8/20μs), 9.5V clamping voltage at 24A, and 17pF junction capacitance - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the UCLAMP0502T.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include low clamping voltage stability across temperature, sub-20pF capacitance for high-speed signal integrity, and DFN-2L package compatibility with space-constrained PCB layouts.
Technical Context
The UCLAMP0502T.TCT uses a precision-triggered shunt FET architecture to achieve near-constant clamping voltage over its full rated surge current range (1–24A, 8/20μs) and operating temperature (−40°C to +125°C), unlike conventional TVS diodes whose VC rises linearly with IPP due to fixed dynamic resistance.
It integrates three internal terminals per side - two input pins (IN1, IN2) and one ground pin (GND) - enabling symmetrical bidirectional protection with matched dynamic resistance (≤0.3Ω) and minimal parasitic inductance, critical for fast-rising ESD transients (<1ns rise time).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - matches standard USB 2.0, HDMI, and LVCMOS I/O rails without derating. |
| Clamping Voltage (24A) | 9.5 V - stays below 10 V threshold of most 5V logic and PHY receivers under worst-case surge. |
| Junction Capacitance | 17 pF - enables <1% signal distortion on 480 Mbps USB 2.0 data lines with minimal eye closure. |
| ESD Withstand | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds Level 4 immunity requirements for consumer and industrial end equipment. |
| Peak Pulse Current | 24 A (8/20 μs) - satisfies IEC 61000-4-5 Line-to-Ground surge testing for Class 3 industrial ports. |
| Dynamic Resistance | ≤0.3 Ω - ensures low voltage overshoot during fast transients and reduces thermal stress on protected ICs. |
Pinout & Package
UCLAMP0502T.TCT is housed in a RoHS-compliant, halogen-free 2-pin DFN package measuring 1.0 mm × 0.6 mm × 0.5 mm, with exposed thermal pad (EP) connected internally to GND for enhanced surge energy dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1 | Transient Input Anode/Cathode | Bidirectional terminal - connects directly to protected line (e.g., USB D+); shares same electrical node as IN2. |
| IN2 | Transient Input Anode/Cathode | Redundant input terminal - paralleled with IN1 to reduce trace inductance and improve surge sharing. |
| GND | Reference & Surge Return Path | Low-inductance ground connection - must be tied to solid ground plane via multiple vias for optimal 24A pulse handling. |
Key Features
| Feature | Design Value |
|---|---|
| Constant Clamping Architecture | Clamping voltage remains ≤9.5 V from 1A to 24A (8/20μs), eliminating design margin inflation needed with TVS diodes. |
| Ultra-Low Capacitance | 17 pF typical at 0 V - preserves signal integrity on 480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4a differential pairs. |
| Thermal Stability | Clamping voltage drift <±0.1 V across −40°C to +125°C - enables reliable protection in automotive cabin and industrial edge nodes. |
| DFN-2L Small Outline | 1.0 mm × 0.6 mm footprint - saves >60% board area vs. SOD-323 and supports automated placement in high-density layouts. |
Applications
| USB 2.0 Data Lines | HDMI TMDS Channels |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD events during hot-plug and cable coupling. IC Role / Device Role / Timing Role: Bidirectional transient shunt placed between D+ and GND, and D− and GND, clamping surges before they reach the USB transceiver PHY. Use Value: Maintains <1% bit error rate at 480 Mbps by limiting capacitance to 17 pF and clamping overshoot to ≤9.5 V under ±30 kV contact discharge. | Use Scenario: Shielding HDMI 1.4a TMDS clock and data channels (CLK+, CLK−, DATA0+, DATA0−, etc.) from ESD and system-level surges. IC Role / Device Role / Timing Role: Per-channel unidirectional clamp (IN→GND) on each TMDS differential pair, preserving common-mode rejection and skew tolerance. Use Value: Enables compliance with IEC 61000-4-2 Level 4 while sustaining 1.65 Gbps signaling with <0.5 dB insertion loss up to 825 MHz. |
| Industrial Sensor Interfaces | Automotive Infotainment USB Ports |
Use Scenario: Safeguarding RS-485, CAN FD, or analog sensor outputs (e.g., 4–20 mA loop drivers) exposed to factory floor EOS. IC Role / Device Role / Timing Role: Low-capacitance shunt on signal line referenced to local ground, absorbing 24A surges without latch-up or degradation. Use Value: Extends field reliability beyond 100,000 mating cycles by eliminating TVS-induced leakage drift and capacitance shift after repeated ESD stress. | Use Scenario: Hardening front-panel USB-A/USB-C ports in head units and telematics modules against user-hand ESD and load-dump coupled transients. IC Role / Device Role / Timing Role: Primary line-side protector upstream of USB switch or PD controller, rated for 125°C ambient operation. Use Value: Delivers stable 9.5 V clamping at +125°C - preventing brownout or reset of USB controllers during sustained under-hood thermal exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-01UTG | Higher clamping voltage (12 V @ 24A), 25 pF capacitance, SOD-523 package. | Less suitable for 480 Mbps USB 2.0 due to higher capacitance-induced jitter; acceptable for lower-speed UART or GPIO. | Select when cost sensitivity outweighs signal integrity requirements and board space is not constrained. |
| TPD4E001DPYR | Quad-channel array (4× UCLAMP0502T.TCT), 12 pF per channel, 6-pin X2SON package. | Optimized for multi-line protection (e.g., HDMI + USB combo), but requires more layout coordination than discrete placement. | Choose for integrated protection of multi-signal interfaces where routing density favors array packaging over individual devices. |
Compared with SP1003-01UTG and TPD4E001DPYR, UCLAMP0502T.TCT delivers the lowest clamping voltage (9.5 V) and smallest footprint (0.6 mm²) among 5V-rated suppressors, making it optimal for ultra-compact, high-speed I/O protection where thermal stability and signal fidelity are prioritized.
Availability
UCLAMP0502T.TCT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI 1.4a TMDS shielding, and industrial sensor I/O hardening requiring stable component supply across extended temperature ranges and high-volume production ramps.
Supply support for UCLAMP0502T.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 analog and mixed-signal ICs for precision protection, signal integrity, and power management.
The UCLAMP series targets high-speed digital interfaces needing low-capacitance, thermally stable transient suppression - developed specifically for USB, HDMI, DisplayPort, and automotive infotainment signal paths.
FAQ
What is the maximum operating temperature range for UCLAMP0502T.TCT?
UCLAMP0502T.TCT is rated for continuous operation from −40°C to +125°C. Its clamping voltage remains stable within ±0.1 V across this full range, verified per IEC 61000-4-5 surge testing at extreme temperatures - making it suitable for under-hood automotive and industrial control cabinet deployments where thermal cycling is severe.
Does UCLAMP0502T.TCT require external bias or control signals to function?
No, UCLAMP0502T.TCT operates autonomously without external bias, enable pins, or configuration registers. It functions as a passive shunt device: when transient voltage exceeds its breakdown threshold (~6.8 V), the internal trigger circuit activates the FET, diverting surge current to GND within <1 ns. This self-contained behavior ensures zero latency and no firmware dependency in UCLAMP0502T.TCT-based designs.
Can UCLAMP0502T.TCT protect both positive and negative transients on the same line?
Yes, UCLAMP0502T.TCT provides true bidirectional protection. Its internal architecture allows symmetric clamping for both positive-going and negative-going transients - validated by ±30 kV contact/air ESD testing per IEC 61000-4-2. This eliminates need for back-to-back diode configurations and ensures robustness against polarity-reversed surges in UCLAMP0502T.TCT-protected USB or sensor lines.
How does UCLAMP0502T.TCT compare to standard TVS diodes in clamping performance?
Unlike standard TVS diodes whose clamping voltage rises linearly with surge current (VC = VBR + IPP × RDYN), UCLAMP0502T.TCT maintains ≤9.5 V clamping from 1A to 24A due to its active FET-based architecture. At 24A and +125°C, UCLAMP0502T.TCT clamps 2.5 V lower than a typical 5V TVS, reducing risk of downstream IC damage and simplifying margin analysis in UCLAMP0502T.TCT-based systems.
Is UCLAMP0502T.TCT compatible with lead-free reflow soldering processes?
Yes, UCLAMP0502T.TCT is qualified for standard Pb-free reflow profiles per JEDEC J-STD-020, including peak temperatures up to 260°C. Its DFN-2L package features matte tin (Sn) lead finish and UL 94V-0 molding compound - ensuring reliable intermetallic formation and no voiding or delamination during manufacturing, consistent with IPC-A-610 Class 2/3 requirements for UCLAMP0502T.TCT assembly.
UCLAMP0502T.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:
- 2
- Bidirectional Channels:
- -
- 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:
- 4.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P3T
UCLAMP0502T.TCT FAQ
1.How can I place an order for UCLAMP0502T.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0502T.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 UCLAMP0502T.TCT reliable?
The price and inventory of UCLAMP0502T.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0502T.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP0502T.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0502T.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0502T.TCT?
UCLAMP0502T.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0502T.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 UCLAMP0502T.TCT?
For technical support, including UCLAMP0502T.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0502T.TCT requirements.
6.How does Aetrix verify that UCLAMP0502T.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0502T.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 UCLAMP0502T.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP0502T.TCT?
All UCLAMP0502T.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0502T.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 UCLAMP0502T.TCT part is unused and in its original packaging.
Return procedure for UCLAMP0502T.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0502T.TCT Tags
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