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Semtech Corporation RCLAMP3655P.TCT
- Part No.:
- RCLAMP3655P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-UFDFN
- Datasheet:
-
RCLAMP3655P.TCT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP3313P6
- Quantity:
- Payment:
- Shipping:
Inventory:3,518
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Product details
Overview
RCLAMP3655P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 36V-rated power or data lines in USB PD, Type-C, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), constant 37V clamping voltage across full current and temperature range, and 175pF junction capacitance at 22V reverse bias.
For engineers reviewing the RCLAMP3655P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability under surge load, low dynamic resistance (<20mΩ), thermal robustness (–40°C to +125°C), and DFN-6 package compatibility with high-density USB Type-C layouts.
Technical Context
RCLAMP3655P.TCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-37V at both 24A and 40A (1.2/50μs + 8/20μs combination waveform, RS = 2Ω)-due to decreasing RDS(on) under surge conditions.
The device protects one bidirectional line with 36V working voltage (VRWM), 39V typical breakdown (VBR at 1mA), and ultra-low leakage (<600nA at 36V). Its solid-state architecture enables stable performance across –40°C to +125°C ambient, with no degradation in clamping or peak current rating over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 36 V - Maximum continuous DC or RMS operating voltage before clamping initiates. |
| Clamping Voltage (VC) | 37 V at 40A (8/20μs) - Stable voltage limit during worst-case surge, protecting downstream ICs with tight VMAX margins. |
| Peak Pulse Current (IPP) | 40 A (8/20μs) - Withstands industrial-level lightning surges per IEC 61000-4-5 without failure. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Survives direct human-body model discharges in handheld and docking applications. |
| Junction Capacitance (CJ) | 175 pF at 22V, 1MHz - Low enough for USB PD bus protection without signal integrity impact on DC/low-frequency lines. |
| Dynamic Resistance (RDYN) | 20 mΩ - Enables flat clamping curve; reduces voltage overshoot during fast-rising transients. |
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 |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (bidirectional); tied together internally to handle high-energy transients across full pin set. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage deviates ≤0.5V from 37V across 24–40A surge range and –40°C to +125°C, eliminating thermal derating concerns. |
| FET-based shunt topology | Replaces PN-junction TVS with <0.1Ω RDS(on), reducing energy dissipation in silicon and improving reliability under repeated surges. |
| Low dynamic resistance | 20mΩ ensures minimal IR drop during surge, enabling precise voltage limiting critical for 36V-system controllers and e-fuses. |
| High EFT immunity | Withstands ±4kV burst noise (IEC 61000-4-4, 5/50ns) on power rails without latch-up or parameter shift. |
Applications
| USB Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–36V VBUS lines in USB PD 3.1 EPR implementations against connector hot-plug transients and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between Type-C receptacle and PD controller or buck converter input. Use Value: Maintains 37V clamp at 40A ensures PD controller ICs (e.g., STUSB4500, CYPD5225) remain below absolute maximum ratings even at 125°C ambient. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., TPS22990, NIS5132) in programmable power supplies and remote meters. IC Role / Device Role / Timing Role: Front-end transient guard that limits voltage stress on internal MOSFET gate oxide and driver circuitry. Use Value: Prevents catastrophic failure of load switch FETs during 1kV/42Ω surge events by holding clamp below 40V, well under typical 45V VDS(max). |
| IoT Gateway Power Rail Protection | Automated Test Equipment (ATE) Signal Line Guarding |
|
Use Scenario: Securing 36V auxiliary rails powering cellular modems, GNSS receivers, and sensor hubs in outdoor IoT gateways exposed to indirect lightning. IC Role / Device Role / Timing Role: Standalone surge diverter on main DC input, upstream of DC-DC converters and LDOs. Use Value: 1120W peak power rating (8/20μs) absorbs multi-kA induced surges without degradation, supporting 10-year field life in ungrounded deployments. |
Use Scenario: Protecting analog/digital control lines (e.g., relay drivers, calibration references) in benchtop ATE systems subject to operator ESD and relay coil flyback. IC Role / Device Role / Timing Role: Low-capacitance, high-withstand protector on non-high-speed control paths where signal bandwidth is <10MHz. Use Value: 175pF capacitance avoids loading of 50Ω source-terminated lines while delivering ±30kV ESD immunity-critical for metrology-grade repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | 22V working voltage, 27.5V clamping, same DFN-6 package and FET-shunt architecture. | Targeted for 20V USB PD and 24V industrial buses-not rated for 36V systems. | Select only if system VRWM ≤22V; RCLAMP3655P.TCT provides 63% higher working voltage headroom. |
| SMAJ36A | Standard unidirectional TVS diode, 58.1V max clamping at 40A, 1.5Ω dynamic resistance, 300pF capacitance. | Lacks constant-clamp behavior; clamping rises >10V across temperature and current range. | Acceptable only for cost-sensitive, non-critical 36V rails where 58V clamp is tolerable and thermal derating is managed externally. |
Compared with TDS2211P.C and SMAJ36A, RCLAMP3655P.TCT uniquely combines 36V operation, 37V flat clamping, and sub-20mΩ dynamic resistance-enabling robust protection in next-gen USB PD EPR and wide-input industrial power stages without layout or thermal compromises.
Availability
RCLAMP3655P.TCT is available at Aetrix Electronics and suitable for USB Power Delivery, industrial load switch inputs, IoT gateway power rails, and automated test equipment requiring stable component supply and guaranteed long-term availability.
Supply support for RCLAMP3655P.TCT 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 signal integrity.
RCLAMP3655P.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability power and interface protection where stable clamping, thermal resilience, and surge endurance are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP3655P.TCT?
The RCLAMP3655P.TCT has a reverse stand-off voltage (VRWM) of 36 V, meaning it can safely operate continuously at up to 36 V DC or RMS without entering clamping mode. This makes RCLAMP3655P.TCT ideal for 36V industrial buses and USB PD Extended Power Range (EPR) applications where legacy 24V or 33V protectors would fail.
How does RCLAMP3655P.TCT achieve constant clamping voltage across surge current and temperature?
RCLAMP3655P.TCT uses a surge-rated FET as its conduction element, triggered by an internal precision circuit. As surge current increases, the FET's RDS(on) decreases, counteracting voltage rise. This results in a stable 37 V clamp from 24A to 40A and across –40°C to +125°C-unlike standard TVS diodes whose clamping rises linearly with current and temperature. The RCLAMP3655P.TCT design eliminates thermal derating calculations.
Can RCLAMP3655P.TCT be used on high-speed data lines like USB SuperSpeed or PCIe?
No-RCLAMP3655P.TCT is not suitable for high-speed differential data lines due to its 175 pF junction capacitance, which would severely degrade signal integrity above ~10 MHz. It is intended for DC power rails, USB PD VBUS, CC/SBU, and low-bandwidth control lines. For SuperSpeed lanes, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF), not RCLAMP3655P.TCT.
What is the recommended PCB layout for optimal surge performance of RCLAMP3655P.TCT?
Place RCLAMP3655P.TCT as close as possible to the protected connector. Connect all three IN pins (4, 5, 6) via a single short, wide trace to the protected line, and tie all three GND pins (1, 2, 3) directly to a solid ground plane using multiple vias. Avoid stubs or splits-this minimizes parasitic inductance and ensures full 40A surge current sharing across all pins. RCLAMP3655P.TCT requires no thermal pad.
Is RCLAMP3655P.TCT compliant with industry surge immunity standards?
Yes-RCLAMP3655P.TCT meets IEC 61000-4-2 (±30 kV contact/air ESD), IEC 61000-4-4 (±4 kV EFT), and IEC 61000-4-5 (40A 8/20μs surge, ±1 kV 1.2/50μs + 8/20μs combo wave with 42Ω source). Its 1120 W peak power rating and flat clamping ensure compliance in harsh industrial and automotive environments where RCLAMP3655P.TCT is deployed.
RCLAMP3655P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-UFDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 75W
- Power Line Protection:
- Yes
- Applications:
- USB OTG
- Capacitance @ Frequency:
- 0.7pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP3313P6
RCLAMP3655P.TCT FAQ
1.How can I place an order for RCLAMP3655P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP3655P.TCT 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 RCLAMP3655P.TCT reliable?
The price and inventory of RCLAMP3655P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP3655P.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP3655P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP3655P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP3655P.TCT?
RCLAMP3655P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP3655P.TCT 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 RCLAMP3655P.TCT?
For technical support, including RCLAMP3655P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP3655P.TCT requirements.
6.How does Aetrix verify that RCLAMP3655P.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP3655P.TCT 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 RCLAMP3655P.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP3655P.TCT?
All RCLAMP3655P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP3655P.TCT, 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 RCLAMP3655P.TCT part is unused and in its original packaging.
Return procedure for RCLAMP3655P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP3655P.TCT Tags
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Diodes Incorporated
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