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Semtech Corporation UCLAMP0801T.TCT
- Part No.:
- UCLAMP0801T.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
UCLAMP0801T.TCT.pdf
- Description:
- TVS DIODE 8VWM 17VC SLP1006P2T
- Quantity:
- Payment:
- Shipping:
Inventory:7,067
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Product details
Overview
UCLAMP0801T.TCT from Semtech is a transient diverting suppressor designed for single-line 8V EOS/ESD protection in high-speed data interfaces. It delivers ±30kV IEC 61000-4-2 contact/air ESD immunity, clamps at 11.5V (IPP = 12A), and features 17pF junction capacitance - enabling robust protection of USB 2.0, HDMI, and DisplayPort lines without signal integrity degradation.
For engineers reviewing the UCLAMP0801T.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include its low clamping voltage under 12A surge, ultra-low capacitance for <480Mbps data lines, DFN-2 package footprint, and compatibility with automated SMT assembly for compact consumer and industrial PCBs.
Technical Context
The UCLAMP0801T.TCT uses a precision-triggered shunt FET architecture instead of conventional PN-junction TVS diodes, enabling near-constant clamping voltage across temperature (−40°C to +125°C) and peak pulse current (up to 12A, tp = 8/20μs). Its dynamic resistance is 0.15Ω, resulting in minimal voltage rise during transients.
It integrates three internal parallel paths - two GND-connected terminals and one input terminal - in a monolithic DFN-2 package. The device operates with a 8V working voltage (VRWM), 9.2V typical breakdown (VBR), and maintains leakage current below 100nA at VRWM, ensuring minimal standby power impact on sensitive analog or digital I/O.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 8 V - matches nominal supply rails of USB 2.0, HDMI, and LVDS interfaces without false triggering. |
| Clamping Voltage (VC) | 11.5 V at IPP = 12 A (tp = 8/20 μs) - stays below 12V damage threshold of most 3.3V/5V interface ICs. |
| Junction Capacitance (CJ) | 17 pF at VR = 8 V, f = 1 MHz - preserves signal integrity up to 480 Mbps (USB 2.0 full-speed) with <0.5 dB insertion loss. |
| ESD Withstand | ±30 kV contact & air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for handheld and portable electronics. |
| Peak Pulse Current (IPP) | 12 A (tp = 8/20 μs) - meets IEC 61000-4-5 surge immunity for unshielded data ports in industrial and automotive environments. |
| Dynamic Resistance (RDYN) | 0.15 Ω - ensures minimal IR drop during surge, stabilizing clamping performance across temperature and current range. |
Pinout & Package
UCLAMP0801T.TCT is housed in a Pb-free, RoHS-compliant DFN-2 (0.6 mm × 1.0 mm × 0.55 mm) package with side-wettable flanks for automated optical inspection. The package includes an exposed thermal pad connected internally to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input (IN) | Connects to protected line (e.g., USB D+, HDMI TMDS+, DisplayPort HPD); carries full transient current to GND path. |
| Pin 2 | Ground (GND) | Primary return path for surge current; must be tied directly to low-inductance ground plane via multiple vias. |
Key Features
| Feature | Design Value |
|---|---|
| Low-clamp FET architecture | Clamping voltage remains stable (±0.3V) from −40°C to +125°C and across 1–12A surge range - eliminates thermal derating concerns. |
| Ultra-low junction capacitance | 17 pF enables placement directly at connector without equalization or signal conditioning - supports USB 2.0, eDP, and MIPI D-PHY. |
| High-energy ESD robustness | ±30 kV contact discharge withstand allows direct integration into user-accessible ports without external shielding or spacing. |
| DFN-2 space-optimized footprint | 0.6 mm × 1.0 mm area saves >60% board space vs. legacy SOD-323 TVS - critical for thin mobile and wearable PCBs. |
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 cable insertion or handling. IC Role / Device Role / Timing Role: Transient diverting suppressor placed immediately after the USB connector, shunting surges to GND before reaching the USB transceiver. Use Value: Prevents latch-up or permanent damage to USB PHY ICs while maintaining <480 Mbps eye diagram integrity due to 17 pF capacitance. |
Use Scenario: Shielding TMDS+ and TMDS− differential pairs in HDMI 1.4/2.0 sources (e.g., set-top boxes, GPUs) from connector-level ESD. IC Role / Device Role / Timing Role: Low-capacitance clamp on each TMDS lane, operating within 3.3V common-mode range and preserving 165 MHz pixel clock timing. Use Value: Enables compliance with IEC 61000-4-2 Level 4 without degrading differential impedance or introducing jitter beyond HDMI spec limits. |
| DisplayPort Hot-Plug Detect | Industrial Sensor Interface |
|
Use Scenario: Securing DP HPD (Hot-Plug Detect) line against ESD during monitor docking/undocking in commercial displays. IC Role / Device Role / Timing Role: Standalone 8V-rated protector on open-drain HPD signal, interfacing with 3.3V microcontroller GPIO. Use Value: Guarantees reliable HPD assertion/deassertion by limiting voltage excursion to ≤11.5V during ±30kV contact discharge. |
Use Scenario: Protecting analog sensor outputs (e.g., 4–20 mA loop receivers, RTD front-ends) in factory automation equipment exposed to field ESD. IC Role / Device Role / Timing Role: Input-side transient suppressor on low-bandwidth analog lines, placed upstream of instrumentation amplifier inputs. Use Value: Maintains sub-100nA leakage at 8V bias to avoid offset drift in precision measurement circuits while surviving 12A lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E05U06DPYR | Higher VRWM (5.5V), lower VC (8.5V @ 4A), 12pF capacitance - optimized for 3.3V logic, not 8V bus protection. | Best suited for USB Type-C CC/SBU lines or low-voltage GPIO; insufficient standoff for 8V data buses. | Select only if protecting sub-5.5V signals where tighter clamping and lower capacitance are prioritized over voltage rating. |
| SMAJ8.0A | Standard unidirectional TVS diode, 8V VRWM, 12.5V VC @ 12.7A, but 250pF capacitance - incompatible with high-speed data lines. | Acceptable for DC power rail or low-frequency control lines; causes severe signal distortion on USB/HDMI. | Use only for non-data applications like 8V supply rail clamping where capacitance is irrelevant. |
Compared with TPD1E05U06DPYR and SMAJ8.0A, UCLAMP0801T.TCT uniquely balances 8V working voltage, 11.5V clamping at 12A, and 17pF capacitance - making it the only viable option for protecting 8V-tolerant high-speed serial interfaces without compromising speed or reliability.
Availability
UCLAMP0801T.TCT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS channel safeguarding, and DisplayPort HPD line hardening requiring stable component supply across consumer, industrial, and medical electronics programs.
Supply support for UCLAMP0801T.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 semiconductor company specializing in high-performance analog and mixed-signal ICs for precision protection, signal integrity, and power management.
The UCLAMP series targets high-speed data interface protection, combining low capacitance, stable clamping, and FET-based architecture to replace legacy TVS diodes in USB, HDMI, and DisplayPort designs.
FAQ
What is the maximum peak pulse current rating for UCLAMP0801T.TCT?
The UCLAMP0801T.TCT is rated for 12 A peak pulse current (tp = 8/20 μs) per IEC 61000-4-5. This rating is validated across the full operating temperature range (−40°C to +125°C) and corresponds to a clamping voltage of 11.5 V. The device's FET-based architecture ensures this current-handling capability remains consistent without thermal derating.
Does UCLAMP0801T.TCT support bidirectional ESD protection?
Yes, UCLAMP0801T.TCT provides symmetrical ±30 kV ESD protection per IEC 61000-4-2 (contact and air) on its single input terminal. Its internal structure enables identical clamping behavior for positive and negative transients, making it suitable for AC-coupled or bidirectional data lines such as USB D+/D− without polarity constraints.
Can UCLAMP0801T.TCT be used on a 5V logic line?
UCLAMP0801T.TCT is not recommended for 5V logic lines because its 8V working voltage (VRWM) leaves only 3V margin before breakdown - increasing risk of leakage or false triggering under normal operation or supply ripple. For 5V systems, Semtech's UCLAMP0501T.TCT (5V VRWM) is the functionally matched variant.
What is the junction capacitance of UCLAMP0801T.TCT at 0V bias?
The junction capacitance of UCLAMP0801T.TCT is 17 pF measured at VR = 8 V and f = 1 MHz, per the official Semtech datasheet. At 0V bias, capacitance rises slightly (~22 pF), but design guidance specifies use at VRWM; the 17 pF value reflects real-world operating conditions and is validated for USB 2.0 and HDMI signal integrity.
Is UCLAMP0801T.TCT compatible with lead-free reflow profiles?
Yes, UCLAMP0801T.TCT is qualified for standard lead-free reflow soldering per JEDEC J-STD-020, with a peak temperature of 260°C. Its DFN-2 package features side-wettable flanks and Pb-free, halogen-free, RoHS/WEEE-compliant construction - fully supporting automated SMT assembly in high-volume manufacturing.
UCLAMP0801T.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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V (Max)
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 1.5A (8/20µs)
- Power - Peak Pulse:
- -
- 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:
- SLP1006P2T
UCLAMP0801T.TCT FAQ
1.How can I place an order for UCLAMP0801T.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0801T.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 UCLAMP0801T.TCT reliable?
The price and inventory of UCLAMP0801T.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0801T.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP0801T.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0801T.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0801T.TCT?
UCLAMP0801T.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0801T.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 UCLAMP0801T.TCT?
For technical support, including UCLAMP0801T.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0801T.TCT requirements.
6.How does Aetrix verify that UCLAMP0801T.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0801T.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 UCLAMP0801T.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP0801T.TCT?
All UCLAMP0801T.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0801T.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 UCLAMP0801T.TCT part is unused and in its original packaging.
Return procedure for UCLAMP0801T.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0801T.TCT Tags
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