Semtech Corporation RCLAMP5031ZATFT
- Part No.:
- RCLAMP5031ZATFT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP5031ZATFT.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:

- Shipping:

Inventory:12,095
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Product details
Overview
RClamp5031ZATFT from Semtech is a single-line, 5V-rated transient voltage suppression (TVS) diode designed for board-level ESD protection of high-speed data interfaces. It delivers ±17kV contact/±24kV air ESD immunity per IEC 61000-4-2, 0.45pF maximum junction capacitance, 0.17Ω typical dynamic resistance, and clamps to 5V at 4A ESD pulse (tp = 0.2/100ns), making it suitable for USB 3.0, USB Type-C, and MIPI differential signal lines.
For engineers reviewing the RClamp5031ZATFT datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity preservation, sub-1Ω dynamic resistance for minimal voltage overshoot during fast transients, and verified performance in 5–10 Gb/s eye diagram testing with no measurable degradation.
Technical Context
RClamp5031ZATFT employs silicon-avalanche TVS technology optimized for low-capacitance, high-speed line protection. Its bidirectional clamping architecture responds within <1 ns to ESD events, maintaining signal fidelity on 5V differential pairs while limiting peak clamping voltage to 5V at 4A (TLP, 0.2/100ns).
The device operates within −40°C to +85°C ambient temperature and features a reverse stand-off voltage (VRWM) of 5V, breakdown voltage (VBR) of 6.5–10.5V at 10mA, and leakage current <50nA at VRWM - ensuring compatibility with 5V logic domains without DC loading or false triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±17kV contact / ±24kV air - meets highest industrial ESD immunity requirements without external shielding |
| Junction Capacitance (CJ) | 0.45pF max at 0V - preserves signal integrity on 5–10 Gb/s interfaces (e.g., USB 3.0/3.1, MIPI) |
| Dynamic Resistance (RDYN) | 0.17Ω typ. - minimizes voltage overshoot during fast ESD pulses, reducing risk of downstream IC latch-up |
| Clamping Voltage (VC) | 5V at 4A (TLP, 0.2/100ns) - holds protected line below 5.5V during worst-case ESD, safeguarding 5V I/O cells |
| Reverse Stand-Off Voltage (VRWM) | 5V - matches standard 5V interface supply rails, preventing conduction during normal operation |
| Peak Pulse Current (IPP) | 4A (1.2/50µs) - sustains surge energy without degradation across >1000 ESD strikes |
Pinout & Package
RClamp5031ZATFT is housed in an ultra-compact SLP0603P2X3F package measuring 0.6 × 0.3 × 0.25 mm, lead-finished with NiAu, and RoHS/WEEE compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to protected data line (e.g., USB3_SSTX+, MIPI_D0+); forms bidirectional clamping path with Pin 2 |
| 2 | Cathode | Connected to system ground plane; completes low-inductance ESD current return path for effective transient shunting |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.45pF max ensures <0.1dB insertion loss up to 10 GHz - critical for USB 3.1 Gen 2 and MIPI D-PHY v2.1 compliance |
| Bidirectional ESD clamping | ±17kV contact rating protects both polarities of differential signaling without polarity-sensitive layout constraints |
| Solid-state avalanche structure | No wear-out mechanism - maintains clamping performance over >1000 ESD events without parameter drift |
| Sub-1Ω dynamic resistance | 0.17Ω typ. limits voltage rise to ≤0.7V above VRWM during 4A TLP pulse - prevents logic threshold violation |
Applications
| USB 3.0 SuperSpeed Interface | USB Type-C Connector Protection |
|---|---|
Use Scenario: Protecting SSTX+/SSTX− and SSRX+/SSRX− lanes in host/device ports against connector hot-plug ESD. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed immediately adjacent to USB Type-B or micro-B connector pins. Use Value: Maintains 5 Gb/s eye opening (verified in datasheet eye diagrams) while clamping transients to 5V - avoids link training failure or PHY reset. |
Use Scenario: ESD protection for all 24-pin USB Type-C receptacle signal lines including CC, SBU, and high-speed differential pairs. IC Role / Device Role / Timing Role: Discrete line protection per signal pair; one RClamp5031ZATFT per lane due to 2-pin configuration. Use Value: 0.45pF capacitance prevents impedance mismatch on 90Ω differential traces; enables full 10 Gb/s USB 3.1 Gen 1 operation post-protection. |
| MIPI D-PHY Camera/Display Link | Wearable Antenna Feedline Protection |
Use Scenario: Shielding MIPI D-PHY v1.2/v2.1 clock and data lanes (CLK+/CLK−, DATA0+/DATA0−) in smartphone camera modules. IC Role / Device Role / Timing Role: Single-line TVS placed at PCB edge before flex-to-PCB transition point. Use Value: Sub-1ns response time prevents ESD-induced bit errors during 2.5 Gbps burst-mode transmission; validated in MIPI MDDI applications. |
Use Scenario: Protecting FM antenna feedlines (50Ω unbalanced) in compact wearables from user-hand ESD discharge. IC Role / Device Role / Timing Role: Shunt-connected between antenna trace and ground, leveraging low capacitance to avoid detuning. Use Value: 0.45pF load shifts resonant frequency by <0.5% at 88–108 MHz - preserves FM reception sensitivity without matching network redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DQAR | 4-channel array, 0.5pF per channel, 5.5V VRWM, ±12kV contact rating | Requires PCB real estate for quad layout; better suited for multi-line protection where space allows | Select when protecting ≥2 lines simultaneously and board area permits shared ground pad |
| ESD5311MUTAG | Single-line, 0.35pF max, 5V VRWM, ±15kV contact, 0.25Ω RDYN | Slightly lower ESD rating and higher dynamic resistance than RClamp5031ZATFT | Choose for cost-sensitive designs where ±15kV suffices and 0.25Ω RDYN remains acceptable for 5V I/O margin |
Compared with TPD4E05U06DQAR and ESD5311MUTAG, RClamp5031ZATFT provides the highest contact ESD rating (±17kV) and lowest dynamic resistance (0.17Ω) in a single-line 0603 footprint - delivering superior transient suppression headroom for mission-critical 5–10 Gb/s interfaces where per-lane optimization is mandatory.
Availability
RClamp5031ZATFT is available at Aetrix Electronics and suitable for USB 3.0, MIPI camera modules, and wearable FM antenna designs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for RClamp5031ZATFT 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, power management, and protection solutions.
RClamp5031ZATFT belongs to Semtech's RClamp® family of ultra-low-capacitance TVS diodes, engineered specifically for ESD robustness in high-speed portable electronics without compromising signal integrity.
FAQ
What is the maximum operating temperature range for RClamp5031ZATFT?
RClamp5031ZATFT is rated for continuous operation from −40°C to +85°C ambient temperature. This range supports deployment in consumer handhelds, automotive infotainment displays, and industrial edge sensors where thermal cycling and extended field life are required. The device maintains specified clamping voltage and leakage current performance across this full range, as validated in Semtech's Rev 3.1 datasheet test conditions.
Does RClamp5031ZATFT require external biasing or control signals?
No, RClamp5031ZATFT is a passive, bidirectional TVS diode that requires no external power, biasing, or control signals. It operates solely via avalanche breakdown under overvoltage conditions and presents only 0.45pF capacitance and <50nA leakage at 5V DC - enabling direct in-line placement on high-speed data traces without circuit modification. Its solid-state silicon-avalanche structure ensures fully autonomous protection behavior.
Can RClamp5031ZATFT be used on 3.3V interfaces?
RClamp5031ZATFT has a 5V reverse stand-off voltage (VRWM), making it unsuitable for direct use on 3.3V interfaces without risk of leakage-induced power loss or false triggering. For 3.3V systems, Semtech recommends RClamp3331ZATFT (3.3V VRWM) or similar variants. Using RClamp5031ZATFT on 3.3V lines may result in elevated standby current (>50nA) and marginal noise margin due to proximity to VBR minimum (6.5V).
How does the SLP0603P2X3F package affect PCB assembly?
The SLP0603P2X3F package (0.6 × 0.3 mm) demands precise stencil design and reflow control: Semtech specifies a minimum aperture area ratio of 0.66, 0.075mm stencil thickness, and Type 4 solder paste. Misalignment or insufficient solder volume risks voided joints or tombstoning. Verified land patterns and NiAu finish ensure reliable interconnect, but process validation per JEDEC J-STD-020 is mandatory for RClamp5031ZATFT yield assurance.
Is RClamp5031ZATFT compatible with lead-free reflow profiles?
Yes, RClamp5031ZATFT is qualified for lead-free reflow per JEDEC J-STD-020, supporting peak temperatures up to 260°C. Its NiAu lead finish and halogen-free, RoHS-compliant construction ensure compatibility with standard Pb-free manufacturing flows. No special pre-bake or moisture sensitivity handling is required - the device is rated MSL1 and shipped in dry-packed tape-and-reel format (15,000 units per 7″ reel).
RCLAMP5031ZATFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 13V
- Current - Peak Pulse (10/1000µs):
- 4A (1.2/50µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.45pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0603P2X3F
RCLAMP5031ZATFT FAQ
1.How can I place an order for RCLAMP5031ZATFT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP5031ZATFT 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 RCLAMP5031ZATFT reliable?
The price and inventory of RCLAMP5031ZATFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP5031ZATFT is usually 5 days.
3.What payment methods are accepted for RCLAMP5031ZATFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP5031ZATFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP5031ZATFT?
RCLAMP5031ZATFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP5031ZATFT 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 RCLAMP5031ZATFT?
For technical support, including RCLAMP5031ZATFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP5031ZATFT requirements.
6.How does Aetrix verify that RCLAMP5031ZATFT is sourced from the original manufacturer or authorized distributors?
All RCLAMP5031ZATFT 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 RCLAMP5031ZATFT meets industry standards.
7.What is the process for return or replacement of RCLAMP5031ZATFT?
All RCLAMP5031ZATFT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP5031ZATFT, 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 RCLAMP5031ZATFT part is unused and in its original packaging.
Return procedure for RCLAMP5031ZATFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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