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Semtech Corporation RCLAMP01001ZCFT
- Part No.:
- RCLAMP01001ZCFT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP01001ZCFT.pdf
- Description:
- RCLAMP, 1-LINE 1.0V 0.12PF SLP06
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
RClamp01001ZCFT from Semtech is a low-capacitance, single-line ESD protection diode designed for high-speed differential data lines operating at 1.0 V. It delivers ±12 kV IEC 61000-4-2 contact ESD immunity, 0.25 pF max junction capacitance, 2.4 V ESD clamping voltage at 4 A TLP, and 5 A peak pulse current (8/20 µs), enabling robust protection in USB 3.1 Gen 2 and Thunderbolt 3 interfaces.
For engineers reviewing the RClamp01001ZCFT datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, sub-3 V clamping under ESD stress, symmetrical bidirectional operation, and DFN-2 package compatibility with high-density PCB layouts for next-generation high-speed interconnects.
Technical Context
RClamp01001ZCFT employs silicon-avalanche solid-state technology to achieve fast response time and stable clamping without degradation. Its symmetrical bidirectional structure supports ±12 kV contact ESD protection while maintaining 1.0 V working voltage and 0.25 pF capacitance - critical for preserving signal fidelity on 10 Gbps+ serial links.
The device operates within –40°C to +85°C and features 2.7 V clamping at 5 A (1.2/50 µs + 8/20 µs combination waveform) and dynamic resistance of 0.22 Ω (TLP, 4–16 A). Its DFN-2 package (0.60 × 0.30 × 0.25 mm) enables placement directly at connector entry points with minimal trace inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Withstand Voltage | ±12 kV contact per IEC 61000-4-2 - meets industrial-grade interface immunity requirements without external shielding. |
| Junction Capacitance | 0.25 pF max at 0 V, 1 MHz - preserves signal integrity on USB 3.1 Gen 2 (10 Gbps) and Thunderbolt 3 (20 Gbps) differential lanes. |
| Clamping Voltage | 2.4 V at 4 A TLP (0.2/100 ns) - limits transient overvoltage to safe levels for 1.0 V I/O receivers. |
| Peak Pulse Current | 5 A (8/20 µs) - handles EOS events such as hot-plug surges and cable discharge without failure. |
| Reverse Standoff Voltage | 1.0 V - matches low-voltage I/O rails of modern USB-C and DisplayPort 2.0 PHYs without leakage or conduction. |
| Dynamic Resistance | 0.22 Ω (TLP, 4–16 A) - ensures consistent clamping performance across varying surge magnitudes. |
Pinout & Package
Package: DFN-2 (0.60 × 0.30 × 0.25 mm), Pb-free, NiAu lead finish, tape-and-reel (15,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (symmetrical) | Electrically identical terminal - bidirectional operation allows flexible routing; no polarity sensitivity during layout. |
| Pin 2 | Anode/Cathode (symmetrical) | Second terminal of symmetrical TVS pair - placed across differential line (e.g., USB TX+/TX−) or single-ended line-to-ground. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.25 pF max - eliminates insertion loss & phase skew on 10+ GHz signaling paths (e.g., S21 = –0.75 dB @ 10 GHz). |
| Bidirectional symmetry | Identical electrical behavior between pins - simplifies layout, eliminates orientation errors, and supports differential line protection without dedicated polarity assignment. |
| Low clamping voltage | 2.4 V at 4 A TLP - protects 1.0 V logic-level transceivers by limiting transient overshoot below 2.5× supply rail. |
| Solid-state avalanche architecture | No wear-out mechanism - maintains ESD performance over >1000 strikes, unlike polymer-based or multilayer varistors. |
Applications
| USB 3.1 Gen 2 Interface | Thunderbolt 3 Host Port |
|---|---|
Use Scenario: Protecting SuperSpeed TX/RX differential pairs on motherboard or dock PCBs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Bidirectional ESD suppressor placed adjacent to USB-C receptacle, shunting transients to ground before reaching controller PHY. Use Value: 0.25 pF capacitance prevents eye diagram degradation at 10 Gbps; ±12 kV contact rating exceeds USB-IF compliance requirement. |
Use Scenario: Safeguarding Thunderbolt 3 DP Alt Mode lanes and PCIe Gen 3 x4 differential signals in laptop docking stations. IC Role / Device Role / Timing Role: Line-to-ground TVS on each high-speed lane (TX0+/−, RX0+/−, etc.), leveraging symmetrical pinout for compact dual-lane placement. Use Value: 2.4 V clamping ensures receiver input stays within absolute maximum ratings during ±8 kV IEC 61000-4-2 contact discharge. |
| USB Type-C Cable Assembly | DisplayPort 2.0 Source Device |
Use Scenario: Integrating ESD protection into active USB-C cables with embedded re-timers or protocol converters. IC Role / Device Role / Timing Role: Single-device solution protecting one differential pair (e.g., CC or SBU line) in space-constrained cable plug assemblies. Use Value: DFN-2 footprint (0.60 × 0.30 mm) fits within tight mechanical envelopes; 1.0 V VRWM aligns with CC logic voltage levels. |
Use Scenario: Board-level protection of DisplayPort 2.0 UHBR13.5 (13.5 Gbps) main link lanes in graphics cards or monitors. IC Role / Device Role / Timing Role: Per-lane ESD clamp mounted at edge connector, minimizing stub length to preserve 13.5 Gbps signal integrity. Use Value: Sub-1 pF capacitance avoids resonance-induced jitter; 5 A peak pulse rating withstands cable discharge events in commercial displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E01B04DPYR | 0.3 pF max capacitance; 1.2 V VRWM; ±12 kV contact ESD; DFN-2 (0.65 × 0.35 mm) | Slightly larger footprint; higher leakage (100 nA typ); optimized for 1.2 V I/O like MIPI D-PHY | Prefer RClamp01001ZCFT when 1.0 V operation and <0.25 pF are required for USB 3.1 Gen 2 compliance. |
| SP1001-01UTG | 0.35 pF max capacitance; 3.3 V VRWM; ±15 kV air/±8 kV contact; SOD-323 (1.7 × 1.25 mm) | Larger package increases parasitic inductance; higher standoff unsuitable for 1.0 V rails | Select RClamp01001ZCFT for high-speed, low-voltage differential lines where layout density and signal fidelity are critical. |
Compared with TPD1E01B04DPYR and SP1001-01UTG, RClamp01001ZCFT uniquely combines 1.0 V working voltage, 0.25 pF capacitance, and ±12 kV contact ESD in a 0.60 × 0.30 mm DFN-2 - making it the only option qualified for 10 Gbps+ 1.0 V interfaces without signal integrity compromise.
Availability
RClamp01001ZCFT is available at Aetrix Electronics and suitable for USB 3.1 Gen 2 host controllers, Thunderbolt 3 docking stations, and DisplayPort 2.0 source devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for RClamp01001ZCFT 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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
RClamp01001ZCFT belongs to Semtech's RailClamp® family - engineered specifically for ultra-high-speed data line protection where sub-0.3 pF capacitance and sub-3 V clamping are mandatory for 10+ Gbps serial protocols.
FAQ
What is the maximum operating temperature range for RClamp01001ZCFT?
RClamp01001ZCFT is rated for continuous operation from –40°C to +85°C ambient temperature. This range supports deployment in consumer laptops, industrial docking stations, and automotive infotainment head units where thermal management is constrained. The device maintains specified ESD clamping voltage and capacitance across this full range, as validated in Semtech's Rev 2.0 datasheet testing.
Does RClamp01001ZCFT require orientation during PCB placement?
No - RClamp01001ZCFT is electrically symmetrical, with identical anode/cathode characteristics on both pins. The datasheet explicitly states "Device is electrically symmetrical," meaning either pin can connect to the protected line or ground without affecting performance. This eliminates orientation errors during automated assembly and simplifies layout for differential pair protection.
Can RClamp01001ZCFT be used for EOS protection in addition to ESD?
Yes - RClamp01001ZCFT is rated for 5 A peak pulse current (tp = 8/20 µs), making it suitable for electrical overstress (EOS) events such as hot-plug surges, cable discharge, and power-rail coupling transients. Its solid-state avalanche construction sustains repeated EOS pulses without parameter drift, unlike polymer-based protectors that degrade after multiple events.
What is the typical junction capacitance of RClamp01001ZCFT at 1 MHz and 0 V bias?
The typical junction capacitance of RClamp01001ZCFT is 0.23 pF, with a maximum of 0.25 pF at 0 V and 1 MHz (25°C), per the Electrical Characteristics table in the Rev 2.0 datasheet. This ultra-low value is measured under standardized conditions and confirmed via on-wafer RF characterization - critical for maintaining return loss and insertion loss specs in 10 Gbps+ designs.
Is RClamp01001ZCFT compatible with lead-free reflow processes?
Yes - RClamp01001ZCFT is qualified for lead-free reflow per JEDEC J-STD-020, with a peak reflow temperature of 260°C. Its DFN-2 package uses NiAu lead finish and is shipped in tape-and-reel format (15,000 pcs per 7-inch reel), fully compliant with IPC-7351B land pattern guidelines and standard SMT assembly workflows.
RCLAMP01001ZCFT 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)
RCLAMP01001ZCFT FAQ
1.How can I place an order for RCLAMP01001ZCFT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP01001ZCFT 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 RCLAMP01001ZCFT reliable?
The price and inventory of RCLAMP01001ZCFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP01001ZCFT is usually 5 days.
3.What payment methods are accepted for RCLAMP01001ZCFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP01001ZCFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP01001ZCFT?
RCLAMP01001ZCFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP01001ZCFT 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 RCLAMP01001ZCFT?
For technical support, including RCLAMP01001ZCFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP01001ZCFT requirements.
6.How does Aetrix verify that RCLAMP01001ZCFT is sourced from the original manufacturer or authorized distributors?
All RCLAMP01001ZCFT 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 RCLAMP01001ZCFT meets industry standards.
7.What is the process for return or replacement of RCLAMP01001ZCFT?
All RCLAMP01001ZCFT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP01001ZCFT, 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 RCLAMP01001ZCFT part is unused and in its original packaging.
Return procedure for RCLAMP01001ZCFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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