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Semtech Corporation RCLAMP1624T.TCT
- Part No.:
- RCLAMP1624T.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-XFDFN
- Datasheet:
-
RCLAMP1624T.TCT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP1710P4T
- Quantity:
- Payment:
- Shipping:
Inventory:12,572
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Product details
Overview
RCLAMP1624T.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB Type-C PD bus protection and load switch input safeguarding.
For engineers reviewing the RCLAMP1624T.TCT datasheet, pinout, applications, or equivalent options, key selection considerations include its constant-clamp behavior across temperature and current, low dynamic resistance enabling stable voltage limiting, DFN 1.6×1.6mm package footprint, and compatibility with industrial surge standards (±1kV, 1.2/50μs).
Technical Context
RCLAMP1624T.TCT uses a surge-rated FET as the primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
The device operates from −40°C to +125°C with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and reverse leakage ≤600nA at 22V. It meets IEC 61000-4-2 (±30kV), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A/8/20μs, ±1kV/1.2/50μs) standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (tp = 8/20μs) - supports compliance with IEC 61000-4-5 Level 4 industrial surge immunity testing. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds standard system-level ESD requirements for USB and industrial interfaces. |
| Dynamic Resistance | 20mΩ - enables minimal voltage rise under high di/dt transients, critical for maintaining tight clamping control. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V bus protection without signal integrity degradation on moderate-speed lines. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground connection for surge return path; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBus in USB Type-C); parallel connection of all three pins ensures uniform current sharing and optimal surge dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Constant Clamping Voltage | 27.5–28V across full 24–40A surge range and −40°C to +125°C - eliminates design margin uncertainty caused by TVS voltage drift with current/temperature. |
| FET-Based Surge Shunting | Surge-rated MOSFET activated by precision trigger circuit - delivers lower dynamic resistance and higher reliability than PN-junction TVS diodes. |
| High-Energy Transient Handling | 1120W peak pulse power (8/20μs) - enables single-device protection against lightning-induced surges in industrial and IoT equipment. |
| Low-Leakage Protection | ≤600nA reverse leakage at 22V - prevents power loss and signal distortion in always-on or battery-powered applications. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBus line in USB Type-C connectors supporting up to 20V/100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to clamp overvoltage before reaching PD controller and power switches. Use Value: Maintains clamping at ≤28V across temperature and current - avoids false triggering or damage to 22V-tolerant PD ICs where conventional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Primary front-end surge limiter that diverts lightning-induced transients away from the load switch's internal FET gate oxide. Use Value: Prevents catastrophic failure of load switches rated for ≤30V absolute max by holding clamped voltage well below that limit even at 40A/125°C. |
| IoT Edge Node Power Rail Protection | Storage Device DC Power Input Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways and edge controllers subjected to field ESD and induced surges. IC Role / Device Role / Timing Role: Solid-state EOS protector replacing bulkier TVS arrays, integrated directly at board edge near power entry. Use Value: 1.6×1.6mm DFN footprint saves >60% board area vs. discrete TVS solutions while delivering superior thermal stability and repeatable clamping. |
Use Scenario: Protecting 22V DC input rails of NVMe SSD enclosures and enterprise storage backplanes against hot-plug transients and ESD during maintenance. IC Role / Device Role / Timing Role: High-reliability transient suppressor co-located with input filter capacitors to absorb fast-rising energy before it propagates into PMICs and flash controllers. Use Value: 175pF capacitance avoids resonance issues with typical 10–100μF bulk caps, and ±4kV EFT rating ensures robustness against switching noise in dense storage racks. |
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 | Same functional architecture, identical 22V working voltage, 40A rating, and DFN 1.6×1.6mm package; differs only in marking code and reel packaging (3,000 pcs/reel vs. RCLAMP1624T.TCT's standard tape-and-reel). | Direct drop-in replacement with identical electrical and thermal performance; validated for same USB PD and load switch use cases. | Select TDS2211P.C when sourcing from Semtech's standard distribution channel with full traceability and volume pricing tiers. |
| SMAJ22A | Standard unidirectional TVS diode (DO-214AC), 22V VRWM, 35.1V VC @ 12.3A - higher clamping voltage, no constant-clamp behavior, 10× higher dynamic resistance (~200mΩ). | Limited to lower-energy applications; unsuitable for 40A surges or high-temperature operation where clamping voltage drift exceeds safe margins. | Consider SMAJ22A only for cost-sensitive, non-critical 22V rail protection where 35V+ clamping is acceptable and surge levels are <15A. |
Compared with TDS2211P.C, RCLAMP1624T.TCT offers identical protection performance and mechanical fit; compared with SMAJ22A, RCLAMP1624T.TCT delivers 30% lower clamping voltage, 10× lower dynamic resistance, and stable performance across temperature - making it essential for robust USB PD and industrial power rail designs.
Availability
RCLAMP1624T.TCT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, long-term lifecycle support, and guaranteed surge immunity compliance.
Supply support for RCLAMP1624T.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 sensing, protection, and connectivity.
RCLAMP1624T.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding stable clamping and extended temperature operation.
FAQ
What is the maximum continuous operating voltage for RCLAMP1624T.TCT?
RCLAMP1624T.TCT has a reverse stand-off voltage (VRWM) of 22V, meaning it can reliably block up to 22V DC or RMS AC continuously without significant leakage or conduction. This makes RCLAMP1624T.TCT ideal for protecting 20V USB PD VBus lines and other 22V-rated industrial power rails where sustained voltage stress occurs.
How does RCLAMP1624T.TCT achieve constant clamping voltage across varying surge currents?
RCLAMP1624T.TCT achieves constant clamping via a surge-rated FET whose RDS(on) decreases under high-current transient conditions, counteracting the linear VC = VBR + IPP × RDYN behavior of traditional TVS diodes. As a result, RCLAMP1624T.TCT maintains 27.5–28V clamping from 24A to 40A - a key advantage confirmed in its datasheet's clamping vs. current curves.
Is RCLAMP1624T.TCT compatible with automated SMT assembly processes?
Yes, RCLAMP1624T.TCT uses a standard DFN 1.6mm × 1.6mm × 0.55mm package with exposed pad-compatible land pattern, Pb-free and RoHS-compliant finish, and UL 94V-0 molding compound - fully qualified for reflow soldering per J-STD-020. Its symmetric 3-pin input / 3-pin ground layout also supports balanced stencil printing and reliable placement yield.
Can RCLAMP1624T.TCT be used to protect bidirectional data lines like USB DP/DM?
No - RCLAMP1624T.TCT is designed exclusively for unidirectional 22V power or I/O line protection (e.g., VBus, load switch inputs). For DP/DM or superspeed data lines, Semtech recommends low-capacitance devices such as RClamp3371ZC (<0.25pF). Using RCLAMP1624T.TCT on data lines would introduce excessive 175pF capacitance and disrupt signal integrity.
What is the thermal derating behavior of RCLAMP1624T.TCT above 25°C ambient?
RCLAMP1624T.TCT exhibits minimal thermal derating: clamping voltage remains stable at 27.5–28V from −40°C to +125°C, and peak pulse current capability holds at 40A across this full range. Unlike TVS diodes whose VC rises and IPP drops with temperature, RCLAMP1624T.TCT's FET-based architecture ensures consistent performance - verified in its datasheet's temperature-dependent clamping and IPP curves.
RCLAMP1624T.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-XFDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 3
- 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:
- SLP1710P4T
RCLAMP1624T.TCT FAQ
1.How can I place an order for RCLAMP1624T.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP1624T.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 RCLAMP1624T.TCT reliable?
The price and inventory of RCLAMP1624T.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP1624T.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP1624T.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP1624T.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP1624T.TCT?
RCLAMP1624T.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP1624T.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 RCLAMP1624T.TCT?
For technical support, including RCLAMP1624T.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP1624T.TCT requirements.
6.How does Aetrix verify that RCLAMP1624T.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP1624T.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 RCLAMP1624T.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP1624T.TCT?
All RCLAMP1624T.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP1624T.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 RCLAMP1624T.TCT part is unused and in its original packaging.
Return procedure for RCLAMP1624T.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP1624T.TCT Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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