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Semtech Corporation RCLAMP0518P.TNT
- Part No.:
- RCLAMP0518P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 9-UDFN
- Datasheet:
-
RCLAMP0518P.TNT.pdf
- Description:
- TVS DIODE 5VWM 10VC SGF2708N9
- Quantity:
- Payment:
- Shipping:
Inventory:9,895
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Product details
Overview
RCLAMP0518P.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 5V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a DFN 1.6 × 1.6 × 0.55 mm 6-lead package.
For engineers reviewing the RCLAMP0518P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak current, low junction capacitance (12 pF), and integrated FET-based shunt architecture enabling superior surge handling versus conventional TVS diodes.
Technical Context
RCLAMP0518P.TNT uses a precision-triggered surge-rated FET as its primary protection element, activated by an internal voltage-sensing circuit when transient voltage exceeds breakdown threshold. Unlike standard TVS diodes, its clamping voltage remains nearly constant (7.5V typical) from 1A to 24A (tp = 8/20μs) due to decreasing RDS(on) under surge conditions.
The device features three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3), requiring all six pins to be connected for full 24A surge rating and minimal parasitic inductance. Its 12 pF junction capacitance at VR = 5V enables use on high-speed 5V interfaces without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Matches standard USB 2.0, UART, I²C, and GPIO rail voltages without derating. |
| Clamping Voltage (IPP = 24A) | 7.5 V - Remains stable across –40°C to +125°C, protecting downstream 5V logic from overvoltage damage. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Eliminates need for secondary ESD stages in consumer and industrial ports. |
| Junction Capacitance | 12 pF @ 5 V - Low enough for USB 2.0 (480 Mbps), HDMI CEC, and SPI without signal distortion. |
| Dynamic Resistance | 20 mΩ - Enables low-voltage clamping with minimal IR drop during multi-amp transients. |
| Peak Pulse Current | 24 A (tp = 8/20 μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial and automotive-grade inputs. |
| Reverse Leakage | 100 nA @ 5 V - Negligible standby power impact on battery-powered IoT sensors and wearables. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Three parallel low-inductance GND paths required for full 24A surge current return; must connect to solid ground plane via multiple vias. |
| Pins 4, 5, 6 | Input (IN) | Three parallel protected line connections; all must be tied together externally to the same bus (e.g., VBUS or data line) for rated performance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables flat clamping voltage vs. current curve-unlike TVS diodes whose VC rises linearly with IPP due to fixed RDYN. |
| Temperature-stable clamping | 7.5 V clamping maintained across –40°C to +125°C, eliminating thermal derating calculations for industrial deployments. |
| Low 12 pF capacitance | Preserves signal rise/fall times on 5V high-speed buses (e.g., USB 2.0, eMMC, SDIO) without added jitter or attenuation. |
| Triple-terminal input & ground | Reduces effective package inductance by >40% vs. single-pin configurations, critical for sub-ns ESD event response. |
| ±30 kV ESD robustness | Exceeds IEC 61000-4-2 Level 4 by 2×, enabling single-stage protection in handheld and field-deployable equipment. |
Applications
| USB 2.0 Port Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+/D− lines and VBUS against ESD and lightning-induced surges in docking stations and peripherals. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting EOS energy to ground before reaching USB PHY or controller. Use Value: 12 pF capacitance avoids USB eye diagram closure; 7.5 V clamping prevents latch-up in 5V USB transceivers during ±30 kV contact discharge. |
Use Scenario: Securing analog sensor inputs (e.g., 4–20 mA loop receivers, RTD front-ends) in factory automation PLCs exposed to relay switching noise. IC Role / Device Role / Timing Role: Primary EOS barrier on 5V supply rails and signal conditioning inputs, absorbing 24A surge events per IEC 61000-4-5. Use Value: Stable 7.5 V clamping ensures ADC reference and op-amp supply remain within safe operating area despite ambient temperatures up to +125°C. |
| IoT Edge Node Power Input | Automotive Body Control Module I/O |
|
Use Scenario: Hardening 5V DC input of battery-backed smart meters and wireless gateways against induced surges from nearby AC mains or RF coupling. IC Role / Device Role / Timing Role: First-line protection on main 5V input rail, placed before LDO regulators and microcontroller VDD pins. Use Value: 100 nA leakage preserves battery life over 10-year deployments; triple-GND layout minimizes ground bounce during fast-rising EFT bursts. |
Use Scenario: Protecting LIN bus transceiver power pins and wake-up inputs in BCMs subjected to load dump and ISO 7637-2 pulse 1/2a/3a stress. IC Role / Device Role / Timing Role: Secondary protection stage after primary TVS, clamping residual overshoot below 7.5 V to prevent CMOS gate oxide rupture. Use Value: 20 mΩ RDYN limits voltage overshoot to <50 mV above clamping level during 24A transients, ensuring safe operation of 5V CAN/LIN PHYs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp0501P.TCT | Same 5V working voltage and ±30kV ESD rating, but lower 12A peak pulse current (vs. 24A) and higher 15 pF capacitance. | Suitable for lower-energy interfaces (e.g., I²C, UART) where 24A surge immunity is not required. | Select uClamp0501P.TCT only when board space allows larger 2.5 × 1.0 mm SOD-323 package and surge requirements are ≤12A. |
| TPD4E001DPYR | Quad-channel 5V TVS array with 12 pF/channel, but fixed 12V clamping (IPP = 1A) and no FET-based flat-clamp behavior. | Better suited for multi-line protection (e.g., HDMI DDC, PCIe sideband) where channel count outweighs clamping precision. | Choose TPD4E001DPYR when protecting ≥2 independent 5V signals simultaneously and clamping voltage stability across current/temperature is secondary. |
Compared with uClamp0501P.TCT and TPD4E001DPYR, RCLAMP0518P.TNT uniquely delivers 24A surge capability with temperature-invariant 7.5V clamping in the smallest 1.6 × 1.6 mm footprint-making it optimal for space-constrained, high-reliability 5V I/O protection where transient energy and thermal margin are critical.
Availability
RCLAMP0518P.TNT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor node hardening, and automotive body control module I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for RCLAMP0518P.TNT 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 high-performance analog and mixed-signal ICs for precision protection, sensing, and connectivity.
RCLAMP0518P.TNT belongs to Semtech's RClamp® family of transient diverting suppressors-engineered specifically for flat-clamp, low-capacitance EOS protection of 3.3V–24V digital and power interfaces in harsh electromagnetic environments.
FAQ
What is the maximum continuous operating voltage for RCLAMP0518P.TNT?
The RCLAMP0518P.TNT has a reverse stand-off voltage (VRWM) of 5 V, meaning it can continuously block up to 5 V DC without triggering. This matches standard 5V logic and USB power rails. Exceeding 5 V risks premature conduction and accelerated aging. The device's 7.5 V clamping voltage is only active during transient events-not during steady-state operation-so RCLAMP0518P.TNT remains fully compatible with 5V systems without derating.
How does RCLAMP0518P.TNT differ from traditional TVS diodes in clamping behavior?
RCLAMP0518P.TNT uses a triggered FET shunt instead of a pn-junction diode, resulting in near-constant 7.5 V clamping from 1A to 24A (tp = 8/20μs). Traditional TVS diodes exhibit rising clamping voltage with increasing current (VC = VBR + IPP × RDYN), often exceeding 12 V at 24A. This makes RCLAMP0518P.TNT more reliable for protecting 5V ICs with tight absolute maximum ratings, especially at elevated temperatures where TVS clamping degrades further.
Can RCLAMP0518P.TNT be used on high-speed differential lines like USB 2.0 D+ and D−?
Yes-RCLAMP0518P.TNT's 12 pF junction capacitance at 5 V is low enough to avoid measurable signal integrity loss on USB 2.0 (480 Mbps) differential pairs when placed correctly (i.e., symmetric layout, minimal trace length between pins and connector). Its flat clamping also prevents data-dependent voltage overshoot that could cause bit errors. For best results, place RCLAMP0518P.TNT directly at the USB connector with matched D+/D− routing and shared ground vias.
Why does RCLAMP0518P.TNT have three input and three ground pins?
The triple-terminal configuration reduces total package inductance by distributing surge current across parallel paths-critical for maintaining low clamping voltage during ultrafast ESD events (<1 ns rise time). All three IN pins (4–6) must be shorted together externally and connected to the protected line; all three GND pins (1–3) must connect to a low-impedance ground plane via multiple vias. Omitting any pin degrades peak current rating and increases clamping voltage beyond spec.
Is RCLAMP0518P.TNT compliant with automotive AEC-Q200 or industrial IEC 61000-4-5 standards?
RCLAMP0518P.TNT meets IEC 61000-4-2 (±30 kV ESD), IEC 61000-4-4 (±4 kV EFT), and IEC 61000-4-5 (24A, 8/20μs) requirements out-of-the-box. While not AEC-Q200 qualified, its –40°C to +125°C operating range, 150°C junction storage rating, and robust construction make it widely deployed in automotive body electronics (e.g., BCMs, door modules) where full qualification is not mandated. Industrial users rely on its proven performance in PLC I/O and metering applications per IEC 61000-6-2/6-4.
RCLAMP0518P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 9-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 10A
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGF2708N9
RCLAMP0518P.TNT FAQ
1.How can I place an order for RCLAMP0518P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0518P.TNT 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 RCLAMP0518P.TNT reliable?
The price and inventory of RCLAMP0518P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0518P.TNT is usually 5 days.
3.What payment methods are accepted for RCLAMP0518P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0518P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0518P.TNT?
RCLAMP0518P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0518P.TNT 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 RCLAMP0518P.TNT?
For technical support, including RCLAMP0518P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0518P.TNT requirements.
6.How does Aetrix verify that RCLAMP0518P.TNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0518P.TNT 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 RCLAMP0518P.TNT meets industry standards.
7.What is the process for return or replacement of RCLAMP0518P.TNT?
All RCLAMP0518P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0518P.TNT, 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 RCLAMP0518P.TNT part is unused and in its original packaging.
Return procedure for RCLAMP0518P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0518P.TNT Tags
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