My Inquiry
My Account
Semtech Corporation RCLAMP3324PQTCT
- Part No.:
- RCLAMP3324PQTCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
RCLAMP3324PQTCT.pdf
- Description:
- TVS DIODE 3.3VWM 4.5VC SGP2510P8
- Quantity:
- Payment:
- Shipping:
Inventory:2,461
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RCLAMP3324PQTCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 3.3V I/O lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 5.8V (IPP = 24A), maintains <0.5Ω dynamic resistance, and operates from –40°C to +125°C in a 1.6 × 1.6 mm DFN-6 package.
For engineers reviewing the RCLAMP3324PQTCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low junction capacitance for high-speed data lines, and validated performance in USB PD bus protection and load switch input safeguarding.
Technical Context
RCLAMP3324PQTCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that initiates conduction when transient voltage exceeds breakdown threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant - not linearly increasing - due to decreasing RDS(on) under surge conditions.
The device protects one bidirectional I/O or power line with a 3.3V working voltage (VRWM = 3.3V), 5.8V clamping (VC) at 24A, and 175 pF junction capacitance at 3.3V bias. Its 6-pin DFN layout groups all three input terminals (pins 4–6) and all three ground terminals (pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 3.3 V - matches standard USB 3.3V logic and supply rails without leakage or false triggering |
| Clamping Voltage (VC) | 5.8 V @ IPP = 24A - stays below 6V to protect 5V-tolerant USB PD controllers and transceivers |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity for end-equipment compliance |
| Peak Pulse Current | 24 A (tp = 8/20 µs) - meets IEC 61000-4-5 surge requirements for industrial and portable devices |
| Junction Capacitance | 175 pF @ VR = 3.3 V, 1 MHz - low enough for USB 2.0 signal integrity; not suitable for USB 3.x SS lanes |
| Dynamic Resistance | 20 mΩ - enables flat clamping response and minimizes voltage overshoot during fast transients |
| Operating Temperature | –40°C to +125°C - supports operation in automotive cabin, industrial control, and ruggedized IoT environments |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and maximize 24A capability |
| Pins 4, 5, 6 | IN | Protected I/O or power line input; parallel connection ensures uniform current sharing and thermal distribution during EOS events |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Enables near-constant clamping voltage across full 24A surge range and –40°C to +125°C operating temperature |
| Low dynamic resistance | 20 mΩ ensures minimal voltage rise during surge onset, reducing risk of downstream latch-up or overvoltage damage |
| High ESD robustness | ±30 kV contact/air rating eliminates need for secondary ESD stages in handheld and connector-facing designs |
| Compact DFN-6 footprint | 1.6 × 1.6 mm area saves >60% board space vs. legacy SO-8 or SOT-23 TVS solutions while maintaining 24A surge rating |
| Lead-free & halogen-free | Complies with RoHS/WEEE and IPC-J-STD-020 moisture sensitivity level 1 (MSL-1), enabling standard reflow assembly |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VCONN, VBus, or auxiliary power lines in USB Type-C receptacles where nominal voltage is 3.3V and transient threats include hot-plug surges and system-level ESD. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, diverting surge energy to ground before it reaches PD controller or load switch IC. Use Value: Clamps at 5.8V under 24A surge - well below 6.5V absolute maximum ratings of common USB PD controllers like TUSB546 or FUSB302. |
Use Scenario: Safeguarding enable or input pins of industrial-grade load switches (e.g., TPS229xx, NIS513x) exposed to lightning-induced surges on remote sensor or actuator nodes. IC Role / Device Role / Timing Role: Front-end transient suppressor placed between connector and load switch VIN/EN pin to prevent gate oxide damage or internal FET failure. Use Value: Maintains sub-6V clamping across temperature - critical for preserving 5.5V-rated enable inputs on high-side switches operating in uncontrolled ambient environments. |
| IoT Sensor Node Power Rail Protection | USB 2.0 Data Line Surge Suppression |
|
Use Scenario: Securing 3.3V power rails feeding BLE/Wi-Fi modules (e.g., ESP32, nRF52840) in battery-powered edge sensors subjected to electrostatic discharge during field servicing. IC Role / Device Role / Timing Role: Standalone rail clamp on main 3.3V supply, absorbing multi-kV ESD events without affecting regulator output stability or MCU brownout behavior. Use Value: 175 pF capacitance introduces negligible loading on 3.3V LDO outputs; no signal integrity impact unlike higher-capacitance TVS arrays. |
Use Scenario: Protecting D+/D− lines in embedded USB 2.0 host/device ports used for firmware updates or diagnostics in medical or test equipment. IC Role / Device Role / Timing Role: Bidirectional shunt clamp on differential pair, conducting common-mode surges while preserving signal fidelity up to 480 Mbps. Use Value: 5.8V clamping prevents forward-biasing internal ESD diodes in USB transceivers (e.g., USB334x, TUSB2036), avoiding latch-up or data corruption during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DPYR | 4-channel array (0.5-pF per line), 3.6V VRWM, 12V VC @ 4A - higher clamping, lower capacitance, lower surge rating | Targeted at high-speed data lines (USB 2.0, HDMI); unsuitable for 24A power-line surge protection | Select when protecting multiple low-capacitance signal lines simultaneously; not a direct replacement for single-line 24A power rail protection |
| SMAJ3.3A | Unidirectional TVS, DO-214AC, 3.3V VRWM, 12.3V VC @ 10A - fixed RDYN, clamping rises with current/temp, larger footprint | General-purpose board-level ESD/surge; lacks flat-clamp behavior and fails to meet 24A IEC 61000-4-5 requirement | Use only in cost-sensitive, low-surge-risk applications where 12V clamping is acceptable and thermal derating is managed externally |
Compared with TPD4E001DPYR and SMAJ3.3A, RCLAMP3324PQTCT uniquely delivers 24A surge capability with stable 5.8V clamping across temperature - making it the only option among the three qualified for USB PD bus and industrial load switch input protection where low-voltage clamping and high-energy handling are jointly required.
Availability
RCLAMP3324PQTCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT sensor node power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for RCLAMP3324PQTCT 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.
RCLAMP3324PQTCT belongs to Semtech's RClamp® family of transient protection devices, engineered specifically for high-fidelity, low-clamp EOS suppression in high-speed and power-sensitive interfaces such as USB, Thunderbolt, and industrial control buses.
FAQ
What is the maximum peak pulse current rating for RCLAMP3324PQTCT?
RCLAMP3324PQTCT is rated for 24 A peak pulse current (tp = 8/20 µs) per IEC 61000-4-5. This value is confirmed in Semtech's official datasheet and reflects the device's ability to safely divert high-energy transients without degradation. The RCLAMP3324PQTCT achieves this with stable clamping at 5.8 V, distinguishing it from conventional TVS diodes whose clamping voltage increases with current.
Does RCLAMP3324PQTCT support bidirectional signal protection?
Yes, RCLAMP3324PQTCT provides bidirectional transient suppression, as verified by its symmetric ±30 kV ESD rating per IEC 61000-4-2 and functional design as a shunt FET-based suppressor. It is commonly deployed on bidirectional 3.3V I/O lines such as USB 2.0 D+/D− or auxiliary power rails in RCLAMP3324PQTCT-based designs.
What is the junction capacitance of RCLAMP3324PQTCT at 3.3V reverse bias?
The junction capacitance of RCLAMP3324PQTCT is 175 pF at VR = 3.3 V and f = 1 MHz, as specified in Semtech's datasheet. This value is measured under actual operating bias and is critical for assessing signal integrity impact on 3.3V digital lines - confirming suitability for USB 2.0 but not for USB 3.x SuperSpeed lanes.
Can RCLAMP3324PQTCT replace a standard TVS diode in a 3.3V power rail?
Yes, RCLAMP3324PQTCT can replace standard TVS diodes on 3.3V rails, but with significant advantages: its 5.8V clamping at 24A is ~6V lower than typical TVS devices (e.g., SMAJ3.3A clamps at 12.3V), and its flat clamping curve avoids temperature- and current-dependent voltage rise. Designers must verify PCB layout - all six pins of RCLAMP3324PQTCT must be properly connected per Semtech's guidelines.
Is RCLAMP3324PQTCT compatible with lead-free reflow soldering processes?
Yes, RCLAMP3324PQTCT is fully compatible with lead-free reflow soldering. It features a lead-free finish, complies with RoHS and WEEE directives, and is rated MSL-1 per IPC-J-STD-020 - meaning it may be stored indefinitely at ambient conditions and processed using standard JEDEC J-STD-020 profile without baking or special handling. This applies to every unit of RCLAMP3324PQTCT shipped by Aetrix Electronics.
RCLAMP3324PQTCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UFDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 4.5V
- Current - Peak Pulse (10/1000µs):
- 4.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 0.65pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGP2510P8
RCLAMP3324PQTCT FAQ
1.How can I place an order for RCLAMP3324PQTCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP3324PQTCT 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 RCLAMP3324PQTCT reliable?
The price and inventory of RCLAMP3324PQTCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP3324PQTCT is usually 5 days.
3.What payment methods are accepted for RCLAMP3324PQTCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP3324PQTCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP3324PQTCT?
RCLAMP3324PQTCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP3324PQTCT 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 RCLAMP3324PQTCT?
For technical support, including RCLAMP3324PQTCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP3324PQTCT requirements.
6.How does Aetrix verify that RCLAMP3324PQTCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP3324PQTCT 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 RCLAMP3324PQTCT meets industry standards.
7.What is the process for return or replacement of RCLAMP3324PQTCT?
All RCLAMP3324PQTCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP3324PQTCT, 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 RCLAMP3324PQTCT part is unused and in its original packaging.
Return procedure for RCLAMP3324PQTCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP3324PQTCT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
