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Semtech Corporation RCLAMP1011ZCTNT
- Part No.:
- RCLAMP1011ZCTNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP1011ZCTNT.pdf
- Description:
- 1-LINE 1.0V 2.5A 0.20PF ESD SLP0
- Quantity:
- Payment:
- Shipping:
Inventory:7,986
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Product details
Overview
RClamp1011ZCTNT from Semtech is a 2-lead DFN ultra-low-capacitance ESD protection diode designed for single high-speed differential data lines, featuring 0.2 pF max capacitance, ±10 kV IEC 61000-4-2 contact ESD withstand, and 1.0 V working voltage - deployed in Thunderbolt 4 and USB4 interface protection.
For engineers reviewing the RClamp1011ZCTNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage at 2.5 A (≤4.0 V), dynamic resistance (0.32 Ω), insertion loss at 10 GHz (0.33 dB), and placement constraints relative to AC coupling capacitors in high-speed layouts.
Technical Context
RClamp1011ZCTNT uses silicon-avalanche TVS technology with symmetrical bidirectional conduction, optimized for differential signaling where common-mode voltage exceeds its 1.0 V working voltage - requiring strategic placement either side of AC coupling capacitors depending on signal path and interface mode (e.g., DisplayPort 1.4a alternate mode).
Its 0.2 pF junction capacitance and sub-0.4 dB insertion loss up to 13 GHz enable transparent integration into 10+ Gb/s serial links without eye diagram degradation, as validated in USB 3.2 Gen 2 and Thunderbolt 3/4 compliance testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.2 pF max at 1 MHz - preserves signal integrity on >10 Gb/s differential lanes with negligible loading. |
| ESD Withstand | ±10 kV contact per IEC 61000-4-2 - meets system-level ESD immunity requirements for USB-C and Thunderbolt ports. |
| 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 - defines maximum continuous DC bias across device; mandates AC-coupled placement in higher-common-mode systems. |
| Dynamic Resistance | 0.32 Ω - ensures low-voltage clamping under fast TLP pulses (0.2/100 ns), critical for sub-nanosecond ESD events. |
| Insertion Loss | 0.33 dB at 10 GHz - confirms minimal high-frequency attenuation in USB4/Thunderbolt 4 channel budgets. |
Pinout & Package
Package: DFN 0.60 × 0.30 × 0.25 mm, 2-lead, Pb-free, halogen-free, RoHS/WEEE compliant; electrically symmetrical - no anode/cathode distinction; marking code "1Z".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode / Cathode (symmetrical) | Electrically identical to Pin 2; bidirectional ESD path - connects to one side of differential pair (e.g., TX+, RX−). |
| Pin 2 | Anode / Cathode (symmetrical) | Electrically identical to Pin 1; completes low-capacitance shunt path to ground for transient suppression on high-speed line. |
Key Features
| Feature | Design Value |
|---|---|
| FemtoFarad capacitance | 0.2 pF max enables use on 13 GHz+ channels without measurable signal distortion or return loss degradation. |
| Low clamping at high current | 4.0 V max clamping at 2.5 A (8/20 µs) protects 1.0 V supply-rail-sensitive SerDes PHYs from latch-up or damage. |
| Symmetrical bidirectional structure | Eliminates orientation concerns during placement - simplifies layout and reduces assembly error risk on dense USB-C PCBs. |
| AC-coupling–aware placement logic | Supports dual-side placement (connector or transceiver side of capacitor) to handle mixed-mode interfaces like USB4/DisplayPort alt modes. |
Applications
| Thunderbolt 4 Interface Protection | USB4 Channel Protection |
|---|---|
Use Scenario: Protecting TX/RX differential pairs in host or device-side Thunderbolt 4 controllers operating at 40 Gb/s. IC Role / Device Role / Timing Role: ESD transient suppressor placed on transceiver side of AC coupling capacitor to clamp differential surges while blocking >1 V common-mode voltages. Use Value: Maintains <0.4 dB insertion loss at 13 GHz and passes Thunderbolt 4 compliance eye mask tests with and without ESD stress. | Use Scenario: Safeguarding SuperSpeed+ lanes in USB4 Type-C receptacles exposed to frequent hot-plug and cable ESD events. IC Role / Device Role / Timing Role: Bidirectional rail clamp on each lane (TX+/−, RX+/−), positioned per USB4 spec to avoid DC bias violation on 1.0 V PHYs. Use Value: Enables robust ±10 kV contact ESD immunity without degrading 20 Gb/s PAM-3 signaling integrity or introducing jitter. |
| DisplayPort 1.4a Alternate Mode | USB 3.2 Gen 2 (10 Gb/s) Implementation |
Use Scenario: Protecting DP0P/DP0N and DP1P/DP1N lanes when USB-C port operates in DisplayPort alt mode at 8.1 Gb/s per lane. IC Role / Device Role / Timing Role: Placed on connector side of AC coupling caps on TX, transceiver side on RX to isolate DP's 3.3 V common-mode while clamping differential transients. Use Value: Prevents ESD-induced link training failure and maintains DP 1.4a compliance with <0.2 pF loading on 8.1 Gbps lanes. | Use Scenario: Board-level ESD hardening of USB 3.2 Gen 2 host/device ports in laptops, docks, and peripherals. IC Role / Device Role / Timing Role: Single-line TVS on each SuperSpeed differential pair (SSTX+/−, SSRX+/−), placed per USB-IF layout guidelines. Use Value: Delivers verified 10 Gb/s eye diagram margin retention after ±8 kV IEC 61000-4-2 contact discharge per USB-IF test plan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-01UTG | 0.35 pF max capacitance; ±12 kV air discharge; 3.3 V working voltage | Higher working voltage allows direct placement on non-AC-coupled 3.3 V lines; less suitable for 1.0 V USB4/Thunderbolt PHYs | Select SP1006-01UTG only if protecting legacy 3.3 V high-speed interfaces where 0.35 pF loading is acceptable. |
| TPD2E007DRYR | 0.75 pF max capacitance; ±8 kV contact; dual-line configuration in SOT-5X3 | Designed for dual-lane protection in compact footprint; higher capacitance limits use to ≤5 Gb/s applications | Choose TPD2E007DRYR for cost-sensitive dual-lane USB 2.0/3.0 designs where bandwidth <5 Gb/s and layout space is constrained. |
Compared with SP1006-01UTG and TPD2E007DRYR, RClamp1011ZCTNT uniquely supports 10–20 Gb/s differential signaling with sub-0.2 pF loading and 1.0 V operation - making it the only option qualified for USB4 and Thunderbolt 4 full-bandwidth compliance without signal integrity compromise.
Availability
RClamp1011ZCTNT is available at Aetrix Electronics and suitable for Thunderbolt 4 host designs, USB4 Type-C docking stations, and DisplayPort 1.4a alternate-mode implementations requiring stable component supply and guaranteed long-term availability.
Supply support for RClamp1011ZCTNT 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.
RClamp1011ZCTNT belongs to Semtech's RailClamp® family of ultra-low-capacitance TVS diodes, engineered specifically for board-level ESD protection of next-generation high-speed serial interfaces including USB4, Thunderbolt, and DisplayPort.
FAQ
What is the maximum operating temperature range for RClamp1011ZCTNT?
RClamp1011ZCTNT operates reliably from −40 °C to +85 °C ambient temperature, with junction and storage temperature rated from −55 °C to +150 °C. This range supports deployment in consumer laptops, industrial docking stations, and automotive infotainment USB-C ports where thermal cycling and extended ambient conditions occur. The RClamp1011ZCTNT thermal specifications align with IPC-7095B guidelines for high-speed interconnect protection devices.
Can RClamp1011ZCTNT be used on USB 3.2 Gen 2x2 (20 Gb/s) differential pairs?
Yes, RClamp1011ZCTNT is validated for USB 3.2 Gen 2x2 operation: its 0.2 pF capacitance and 0.39 dB insertion loss at 13 GHz meet the channel insertion loss budget for 20 Gb/s PAM-3 signaling. Application Note AN-1021 confirms RClamp1011ZCTNT placement on both SSTX and SSRX lanes preserves eye height and jitter margin per USB-IF compliance test plans.
Is RClamp1011ZCTNT pin-compatible with RClamp1011ZCTFT?
Yes, RClamp1011ZCTNT and RClamp1011ZCTFT share identical DFN 0.60 × 0.30 × 0.25 mm package, pinout, electrical characteristics, and marking code "1Z"; the only difference is tape material (plastic vs. paper) and reel quantity (10,000 vs. 15,000). RClamp1011ZCTNT is a direct drop-in replacement for RClamp1011ZCTFT in SMT assembly lines using plastic carrier tape.
How does RClamp1011ZCTNT achieve low clamping voltage with only 0.2 pF capacitance?
RClamp1011ZCTNT achieves 4.0 V clamping at 2.5 A through optimized silicon-avalanche junction design and sub-100 nm geometry control, enabling rapid turn-on with minimal stored charge. Its 0.32 Ω dynamic resistance (measured via TLP) ensures voltage collapse occurs before energy transfer damages downstream PHYs - all while maintaining 0.2 pF capacitance via minimized junction area and advanced passivation. This balance is confirmed in Figure 3 of the RClamp1011ZCTNT datasheet Rev 2.4.
What is the recommended PCB pad layout for RClamp1011ZCTNT?
Semtech specifies a land pattern with 0.300 mm pad width, 0.675 mm pad length, and 0.250 mm spacing - matching the DFN 0.60 × 0.30 mm body. Stencil aperture should be rectangular with rounded corners, 0.075 mm thick, and ≥0.66 area ratio. The RClamp1011ZCTNT mounting pattern avoids solder bridging and ensures coplanarity per JEDEC J-STD-020 reflow profiles, as detailed in page 7 of the official datasheet.
RCLAMP1011ZCTNT 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)
RCLAMP1011ZCTNT FAQ
1.How can I place an order for RCLAMP1011ZCTNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP1011ZCTNT 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 RCLAMP1011ZCTNT reliable?
The price and inventory of RCLAMP1011ZCTNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP1011ZCTNT is usually 5 days.
3.What payment methods are accepted for RCLAMP1011ZCTNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP1011ZCTNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP1011ZCTNT?
RCLAMP1011ZCTNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP1011ZCTNT 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 RCLAMP1011ZCTNT?
For technical support, including RCLAMP1011ZCTNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP1011ZCTNT requirements.
6.How does Aetrix verify that RCLAMP1011ZCTNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP1011ZCTNT 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 RCLAMP1011ZCTNT meets industry standards.
7.What is the process for return or replacement of RCLAMP1011ZCTNT?
All RCLAMP1011ZCTNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP1011ZCTNT, 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 RCLAMP1011ZCTNT part is unused and in its original packaging.
Return procedure for RCLAMP1011ZCTNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP1011ZCTNT Tags
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