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Semtech Corporation RCLAMP1011ZCTFT
- Part No.:
- RCLAMP1011ZCTFT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP1011ZCTFT.pdf
- Description:
- 1-LINE 1.0V 2.5A 0.20PF ESD SLP0
- Quantity:
- Payment:
- Shipping:
Inventory:9,351
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Product details
Overview
RClamp1011ZCTFT from Semtech is an ultra-low-capacitance (0.2 pF max), 1-line ESD protection diode rated for ±10 kV IEC 61000-4-2 contact discharge, 1.0 V working voltage, and 2.5 A peak pulse current, designed specifically for Thunderbolt 4 and USB4 differential data line protection.
For engineers reviewing the RClamp1011ZCTFT datasheet, pinout, applications, or equivalent options, key selection criteria include sub-0.2 pF capacitance, clamping voltage ≤4.0 V at 2.5 A, 2-lead DFN package footprint, and compatibility with high-speed AC-coupled interfaces up to 13 GHz.
Technical Context
The RClamp1011ZCTFT employs silicon-avalanche TVS technology optimized for high-speed differential signaling, delivering fast response time (<1 ns) and no device degradation after repeated ESD events. Its symmetrical bidirectional structure enables placement on either side of AC coupling capacitors in TX/RX paths.
It operates within a -40°C to +85°C ambient range and maintains stable clamping performance across temperature, with dynamic resistance of 0.32 Ω (TLP, 4–8 A) and insertion loss of only 0.39 dB at 13 GHz - enabling use in 10+ Gb/s serial links without signal integrity compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.2 pF max at 1 MHz - preserves signal integrity on 10+ Gb/s lines (e.g., USB4, Thunderbolt 4) |
| ESD Withstand | ±10 kV contact per IEC 61000-4-2 - meets system-level ESD immunity requirements |
| Clamping Voltage | 4.0 V max at 2.5 A (8/20 µs) - limits transient overvoltage to safe levels for 1.0 V transceivers |
| Working Voltage | 1.0 V - matches low-voltage differential signaling (LVDS) common-mode range |
| Leakage Current | 500 nA max at 1.0 V - avoids DC loading on high-impedance receiver inputs |
| Package Size | DFN 0.60 × 0.30 × 0.25 mm - fits tight layout constraints near Type-C connectors |
Pinout & Package
Package: DFN 0.60 × 0.30 × 0.25 mm, 2-lead, Pb-free, RoHS-compliant, symmetrical bidirectional device with no polarity marking (electrically identical pins).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (symmetrical) | Either terminal serves as input/output for bidirectional ESD clamping; no orientation required during placement |
| Pin 2 | Anode/Cathode (symmetrical) | Paired with Pin 1 to form a single low-capacitance TVS path across differential line; no ground reference needed |
Key Features
| Feature | Design Value |
|---|---|
| FemtoFarad capacitance | 0.2 pF max ensures <0.4 dB insertion loss at 13 GHz - critical for USB4/Thunderbolt 4 eye diagram compliance |
| Low clamping voltage | 4.0 V max at 2.5 A protects 1.0 V supply-rail transceivers without violating absolute maximum ratings |
| AC-coupling aware placement | Supports flexible positioning on either side of coupling caps - enables robust protection in DisplayPort 1.4a alternate modes |
| Thermal stability | Rated for -55°C to +150°C junction temperature - sustains performance under reflow and operational thermal stress |
Applications
| Thunderbolt 4 Interface | USB4 Host Port |
|---|---|
Use Scenario: Protecting bidirectional TX/RX differential pairs in laptop docking stations handling 40 Gbps data and DP Alt Mode video. IC Role / Device Role / Timing Role: Standalone ESD suppressor placed on transceiver side of AC coupling caps to clamp transients while preserving 13 GHz bandwidth. Use Value: Enables full USB4 specification compliance with <0.39 dB insertion loss at 13 GHz and ±10 kV contact ESD immunity. | Use Scenario: Securing SuperSpeed+ lanes in USB4 upstream ports of desktop motherboards supporting dual 20 Gbps lanes. IC Role / Device Role / Timing Role: Single-line TVS per differential pair, mounted on connector side of TX coupling caps and transceiver side of RX caps. Use Value: Maintains signal integrity margin for 10.0 Gb/s eye diagrams per USB 3.2 Gen 2 mask while surviving >100,000 ESD events. |
| DisplayPort 1.4a Cable Assembly | USB Type-C Receptacle Protection |
Use Scenario: Integrated into active USB-C to DP1.4a adapter cables to protect source-side DP0P/DP0N and DP1P/DP1N lines. IC Role / Device Role / Timing Role: Bidirectional clamping device placed on connector side of TX coupling caps and transceiver side of RX caps per lane. Use Value: Prevents ESD-induced latch-up in DP PHYs operating at 8.1 Gbps per lane while adding <0.2 pF parasitic load. | Use Scenario: Board-level protection of USB-C receptacles in portable SSD enclosures exposed to frequent plug/unplug cycles. IC Role / Device Role / Timing Role: One RClamp1011ZCTFT per SuperSpeed differential pair (TX+/−, RX+/−), placed adjacent to connector pads. Use Value: Delivers ±10 kV contact ESD protection with zero impact on 10 Gb/s jitter budget due to ultra-low capacitance and leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E01B04DPYR | 0.2 pF max capacitance, ±12 kV contact ESD rating, 1.8 V working voltage | Higher working voltage suits 1.8 V I/O domains; not optimized for sub-1.0 V USB4/Thunderbolt 4 PHYs | Select when protecting 1.8 V differential interfaces where higher standoff voltage is prioritized over lowest possible capacitance |
| SMA6J10A-Q | 10 V working voltage, 600 W peak power, 17 pF capacitance | Designed for general-purpose board-level surge, not high-speed data lines | Only suitable for low-frequency or power-line protection; incompatible with >1 Gb/s signaling due to excessive capacitance |
Compared with TPD1E01B04DPYR and SMA6J10A-Q, the RClamp1011ZCTFT uniquely balances sub-0.2 pF capacitance, 1.0 V working voltage, and ±10 kV ESD rating - making it the only validated option for 10+ Gb/s differential interfaces requiring minimal signal distortion and precise low-voltage clamping.
Availability
RClamp1011ZCTFT is available at Aetrix Electronics and suitable for Thunderbolt 4 host designs, USB4 cable assemblies, and DisplayPort 1.4a adapter applications requiring stable component supply and guaranteed long-term sourcing.
Supply support for RClamp1011ZCTFT 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 sensing, protection, and signal integrity.
The RClamp® product line targets high-speed interface protection, with the RClamp1011ZCTFT engineered specifically for next-generation USB and Thunderbolt interconnects operating above 10 Gb/s.
FAQ
What is the maximum operating voltage for RClamp1011ZCTFT?
The RClamp1011ZCTFT has a reverse stand-off voltage (VRWM) of 1.0 V across the full operating temperature range (-40°C to +85°C). This means it is designed exclusively for low-voltage differential signaling applications such as USB4 and Thunderbolt 4, where common-mode voltages remain at or below 1.0 V. Exceeding this voltage risks premature conduction and signal corruption.
Does RClamp1011ZCTFT require a ground connection?
No, the RClamp1011ZCTFT is a two-terminal, bidirectional TVS diode with no ground pin. It connects directly across a differential signal pair (e.g., TX+ to TX−) and clamps transient energy between those lines. Its symmetrical construction eliminates polarity concerns and simplifies PCB routing in high-density layouts.
How does RClamp1011ZCTFT perform at 13 GHz?
At 13 GHz, the RClamp1011ZCTFT exhibits 0.39 dB insertion loss (S21) and 0.17 pF typical junction capacitance - verified by S-parameter measurements in the official datasheet. This performance enables full compliance with USB4 and Thunderbolt 4 signal integrity requirements, including eye diagram mask testing at 10.0 Gb/s and beyond.
Can RClamp1011ZCTFT be used on both sides of an AC coupling capacitor?
Yes - the RClamp1011ZCTFT's 1.0 V working voltage and symmetrical design allow placement on either side of AC coupling capacitors. For TX lines, it is typically placed on the connector side; for RX lines, on the transceiver side - ensuring clamping occurs only across the differential signal while blocking common-mode DC offsets.
Is RClamp1011ZCTFT compatible with automated optical inspection (AOI)?
Yes, the RClamp1011ZCTFT uses a standard DFN 0.60 × 0.30 mm package with visible solderable terminations and a "1Z" top-side marking. Its small size and lack of hidden thermal pad make it fully compatible with standard AOI systems configured for 0201-class components, provided stencil and reflow parameters follow Semtech's recommended guidelines.
RCLAMP1011ZCTFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0201 (0603 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 1V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (0.6x0.3)
RCLAMP1011ZCTFT FAQ
1.How can I place an order for RCLAMP1011ZCTFT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP1011ZCTFT 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 RCLAMP1011ZCTFT reliable?
The price and inventory of RCLAMP1011ZCTFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP1011ZCTFT is usually 5 days.
3.What payment methods are accepted for RCLAMP1011ZCTFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP1011ZCTFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP1011ZCTFT?
RCLAMP1011ZCTFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP1011ZCTFT 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 RCLAMP1011ZCTFT?
For technical support, including RCLAMP1011ZCTFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP1011ZCTFT requirements.
6.How does Aetrix verify that RCLAMP1011ZCTFT is sourced from the original manufacturer or authorized distributors?
All RCLAMP1011ZCTFT 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 RCLAMP1011ZCTFT meets industry standards.
7.What is the process for return or replacement of RCLAMP1011ZCTFT?
All RCLAMP1011ZCTFT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP1011ZCTFT, 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 RCLAMP1011ZCTFT part is unused and in its original packaging.
Return procedure for RCLAMP1011ZCTFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP1011ZCTFT Tags
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