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Semtech Corporation RCLAMP3654P.TCT
- Part No.:
- RCLAMP3654P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP3654P.TCT.pdf
- Description:
- TVS DIODE 5.5VWM 30VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:2,952
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Product details
Overview
RCLAMP3654P.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 Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 40.5V (IPP = 40A, tp = 8/20μs), maintains <25mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6mm × 1.6mm DFN-6 package.
For engineers reviewing the RCLAMP3654P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include its constant-clamping architecture versus conventional TVS diodes, low temperature drift of clamping voltage, 175pF junction capacitance at 36V bias, and suitability for load switch input protection where VBR ≥ 39V and IPP = 40A compliance is required.
Technical Context
RCLAMP3654P.TCT uses a surge-rated FET as the primary shunt element, activated by a precision trigger circuit that turns on the FET when transient voltage exceeds breakdown. Unlike standard TVS diodes, its clamping voltage remains nearly flat across 1–40A peak pulse current due to decreasing RDS(on), not fixed dynamic resistance.
The device protects one bidirectional line with 36V working voltage (VRWM), 40.5V clamping at 40A (8/20μs), and 175pF capacitance at 36V/1MHz - optimized for USB PD bus and industrial power rail protection where low capacitive loading and stable clamping under thermal stress are critical.
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) | 40.5 V at IPP = 40 A (8/20 μs) - limits transient overvoltage to safe level for downstream 40V-tolerant ICs |
| Peak Pulse Current (IPP) | 40 A (8/20 μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds USB IF and industrial ESD immunity requirements |
| Junction Capacitance (CJ) | 175 pF at VR = 36 V, 1 MHz - low enough for USB PD bus protection without signal integrity degradation |
| Dynamic Resistance (RDYN) | 25 mΩ - ensures minimal voltage rise across rated current range, enabling flat clamping behavior |
| Operating Temperature | –40°C to +125°C - supports deployment in automotive-grade and industrial ambient environments |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground connection - all three pins must be soldered to maximize surge current path and minimize inductance |
| 4, 5, 6 | IN | Protected line input - bidirectional connection to 36V bus; all three pins tied together for lowest impedance path to GND during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.5V across 1–40A IPP range - eliminates need for overrating to meet worst-case VC limits |
| Low-temperature drift | VC remains stable ±0.3V from –40°C to +125°C - enables reliable protection in uncontrolled thermal environments |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - sustains repeated industrial surges without degradation |
| Ultra-low dynamic resistance | 25mΩ typical - reduces IR drop during clamping, preserving margin for downstream 40V-rated components |
| Compact DFN footprint | 1.6mm × 1.6mm area - saves >60% board space vs. SO-8 TVS solutions while maintaining 40A capability |
Applications
| USB Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–36V USB PD power rails against lightning-induced surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between VBUS and GND, acting as fast-acting shunt clamp triggered by overvoltage. Use Value: Maintains 40.5V clamping at 40A and 125°C - prevents damage to PD controllers and e-fuses rated ≤40V, unlike TVS diodes whose VC rises >5V with temperature. |
Use Scenario: Safeguarding input terminals of industrial load switches (e.g., HS2950P) exposed to 1kV/42Ω surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary front-end protector absorbing surge energy before it reaches the load switch's internal FET gate oxide. Use Value: Limits voltage across load switch drain-source to <41V during 40A transients - avoids gate oxide rupture and ensures long-term reliability in remote metering and robotics. |
| Automotive Infotainment Power Rails | Programmable Logic Controller (PLC) I/O Modules |
Use Scenario: Securing 24–36V supply lines feeding infotainment head units and display controllers in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional EOS suppressor connected across VCC and GND, responding within nanoseconds to ISO 10605 ESD events. Use Value: Delivers ±30kV contact ESD immunity and flat 40.5V clamping - meets OEM EMC requirements while avoiding false resets caused by TVS-induced voltage droop. |
Use Scenario: Protecting 24/36V field-side power inputs on PLC backplanes subjected to repetitive 2kV surge testing. IC Role / Device Role / Timing Role: High-reliability transient suppressor mounted directly at terminal block entry point to divert surge energy to chassis ground. Use Value: Sustains 40A surges with <25mΩ RDYN - minimizes localized heating and enables >100,000 surge cycles without parameter shift, per IEC 61000-4-5 endurance tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS3611P.C | Same FET-based TDS architecture; identical 36V VRWM, 40.5V VC, and DFN-6 package - differs only in marking code and reel packaging | No functional difference; validated for identical USB PD and industrial use cases | Select TDS3611P.C if requiring Semtech's standard commercial-grade tape-and-reel configuration (3,000 pcs/reel) |
| SMAJ36A | Standard silicon avalanche TVS diode; higher VC = 58.1V at 40A, +12mV/°C tempco, 1.5× higher capacitance (250pF) | Less suitable for 40V-tolerant ICs; requires derating above 85°C; higher signal loading on high-speed buses | Choose SMAJ36A only for cost-sensitive, non-thermal-critical applications where clamping margin >18V is acceptable |
Compared with TDS3611P.C, RCLAMP3654P.TCT offers identical electrical performance but different date-code marking and reel logistics; versus SMAJ36A, RCLAMP3654P.TCT provides 17.6V lower clamping, 30% lower capacitance, and zero temperature-induced VC drift - critical for robust USB PD and industrial control designs.
Availability
RCLAMP3654P.TCT is available at Aetrix Electronics and suitable for USB Power Delivery systems, industrial load switch protection, and automotive infotainment power rails requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for RCLAMP3654P.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 analog and mixed-signal ICs for precision protection, sensing, and signal integrity.
RCLAMP3654P.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability power rail and interface protection where flat clamping, low temperature drift, and high surge endurance are mandatory.
FAQ
What is the maximum continuous operating voltage for RCLAMP3654P.TCT?
RCLAMP3654P.TCT has a reverse stand-off voltage (VRWM) of 36 V, meaning it can continuously withstand up to 36 V DC or RMS without entering conduction. This makes RCLAMP3654P.TCT suitable for 36V industrial buses and USB PD applications with up to 36V nominal operation. Exceeding this voltage risks premature leakage or thermal runaway.
How does RCLAMP3654P.TCT achieve flat clamping voltage across varying surge currents?
RCLAMP3654P.TCT uses a surge-rated MOSFET as its clamping element, controlled by an integrated precision trigger circuit. As surge current increases, the FET's RDS(on) decreases, counteracting the I×R voltage rise. This results in RCLAMP3654P.TCT maintaining clamping voltage within ±0.3V from 1A to 40A - unlike TVS diodes whose VC rises linearly with current.
Can RCLAMP3654P.TCT be used for bidirectional signal line protection?
No - RCLAMP3654P.TCT is designed exclusively for unidirectional or bidirectional power rail protection (e.g., VBUS to GND). Its pinout (IN/GND) and internal architecture do not support differential or AC-coupled signal lines. For USB SS, DP/DM, or CAN lines, Semtech recommends RClamp3371ZC or uClamp2411ZA instead of RCLAMP3654P.TCT.
What is the junction capacitance of RCLAMP3654P.TCT at 36V bias?
RCLAMP3654P.TCT exhibits 175 pF junction capacitance at VR = 36 V and f = 1 MHz. This value is measured under reverse-biased conditions and remains stable across temperature, making RCLAMP3654P.TCT appropriate for protecting high-voltage power rails without introducing excessive capacitive loading on adjacent traces.
Is RCLAMP3654P.TCT RoHS-compliant and halogen-free?
Yes - RCLAMP3654P.TCT is fully RoHS/WEEE compliant, lead-free, and halogen-free, with UL 94V-0 flammability rating for the molding compound. The device uses lead-free termination finish and meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL1), allowing unlimited floor life at ≤30°C/60% RH.
RCLAMP3654P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN Exposed Pad
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 3
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 30V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- Yes
- Applications:
- USB OTG
- Capacitance @ Frequency:
- 0.8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
RCLAMP3654P.TCT FAQ
1.How can I place an order for RCLAMP3654P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP3654P.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 RCLAMP3654P.TCT reliable?
The price and inventory of RCLAMP3654P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP3654P.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP3654P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP3654P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP3654P.TCT?
RCLAMP3654P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP3654P.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 RCLAMP3654P.TCT?
For technical support, including RCLAMP3654P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP3654P.TCT requirements.
6.How does Aetrix verify that RCLAMP3654P.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP3654P.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 RCLAMP3654P.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP3654P.TCT?
All RCLAMP3654P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP3654P.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 RCLAMP3654P.TCT part is unused and in its original packaging.
Return procedure for RCLAMP3654P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP3654P.TCT Tags
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