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Semtech Corporation TCLAMP2512N.TCT
- Part No.:
- TCLAMP2512N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
TCLAMP2512N.TCT.pdf
- Description:
- TVS DIODE 2.5VWM SLP2626P10
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TCLAMP2512N.TCT from Semtech is a transient diverting suppressor designed for high-energy EOS protection on 25V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.6V clamping at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance at 22V.
For engineers reviewing the TCLAMP2512N.TCT datasheet, pinout, applications, or equivalent options, this device delivers stable clamping voltage across temperature (–40°C to +125°C) and pulse current range-critical for USB PD, industrial load switch input protection, and high-reliability 25V bus interfaces where conventional TVS diodes exhibit rising clamping with current and temperature.
Technical Context
The TCLAMP2512N.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 standard TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under surge, not fixed dynamic resistance.
It operates as a bidirectional shunt protector between six terminals: three dedicated ground pins (1–3) and three input pins (4–6), requiring all six pins to be connected for full 40A rating. Its DFN 1.6×1.6×0.55mm package enables compact placement near connectors with minimal parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 25V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or degradation |
| Clamping Voltage | 27.6V at 40A (8/20μs) - ensures downstream 25V-rated ICs (e.g., USB PD controllers, load switches) remain below damage threshold during worst-case surge |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 25V systems |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards without derating |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 25V power rail protection without signal integrity impact on adjacent traces |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and achieve full 40A rating |
| 4, 5, 6 | IN | Protected line input (bidirectional); connects directly to 25V bus or power rail; all three pins share same electrical node |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across 24–40A surge range and –40°C to +125°C - eliminates thermal derating and simplifies margin analysis vs. TVS diodes |
| FET-based shunt architecture | Surge-rated MOSFET triggered by precision breakdown circuit - achieves <0.1Ω effective on-resistance under surge, enabling low-voltage clamping |
| Low dynamic resistance | 20mΩ measured between 1A and 40A - reduces voltage overshoot during fast transients and improves energy handling linearity |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive burst noise in industrial motor drives and PLC I/O |
Applications
| USB Power Delivery (PD) Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–25V VBUS lines in USB-C ports supporting up to 100W PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt suppressor placed between VBUS and chassis/system ground, clamping transients before they reach PD controller or buck converter. Use Value: Maintains 27.6V clamping at 40A and 125°C - prevents overvoltage damage to 25V-rated PD controllers (e.g., STUSB4500, TUSB7320) where TVS devices would exceed 35V at same conditions. |
Use Scenario: Safeguarding input of high-side load switches (e.g., HS2950P, TPS229xx) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end transient shunt placed upstream of load switch VIN pin to limit voltage stress on internal FET gate oxide and drain-source junction. Use Value: Clamps to 27.6V at 40A - keeps load switch VDS(max) margin intact (e.g., HS2950P rated 36V) while avoiding thermal runaway common with TVS-based solutions. |
| IoT Edge Node Power Rail Protection | 25V Industrial Sensor Interface Protection |
Use Scenario: Securing 24VDC input rails of battery-backed IoT gateways and cellular modems deployed in outdoor or ungrounded environments. IC Role / Device Role / Timing Role: Standalone EOS protector on main DC input, coordinated with upstream fuse and downstream LDO/regulator. Use Value: Delivers ±30kV ESD and 40A surge capability in 1.6×1.6mm footprint - enables compact, certified Class B EMC designs without external MOVs or large TVS arrays. |
Use Scenario: Protecting analog front-end inputs of 25V-powered industrial sensors (e.g., pressure transmitters, RTD conditioners) connected to long cables susceptible to induced surges. IC Role / Device Role / Timing Role: Bidirectional shunt clamp on sensor supply rail (VSUPPLY) referenced to local ground, placed at PCB entry point. Use Value: Stable 27.6V clamping across –40°C to +125°C - ensures consistent protection in wide-temperature enclosures without recalculating margins per ambient condition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | 22V working voltage, 27.6V clamping at 40A, identical DFN-6 package and pinout | Optimized for 20–22V USB-C VBUS; lower working voltage limits use in 25V systems | Select when protecting ≤22V rails where tighter clamping margin is required and 25V headroom is unnecessary |
| SP1003-02HTG | 24V working voltage, 33V clamping at 30A (8/20μs), SOD-323 package, higher dynamic resistance (~100mΩ) | Higher clamping voltage and smaller surge rating; suitable only for lower-energy 24V applications | Choose for cost-sensitive, space-constrained 24V designs where 33V clamping is acceptable and 40A surge is not required |
Compared with TDS2211P and SP1003-02HTG, TCLAMP2512N.TCT uniquely supports 25V continuous operation with 27.6V clamping at full 40A - enabling direct replacement of legacy TVS solutions in upgraded 25V industrial and USB PD systems without layout or margin rework.
Availability
TCLAMP2512N.TCT is available at Aetrix Electronics and suitable for USB Power Delivery, industrial load switch inputs, and 25V IoT edge node power rails requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for TCLAMP2512N.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.
TCLAMP2512N.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 24–28V power rail protection with superior clamping stability and surge endurance.
FAQ
What is the maximum continuous operating voltage for TCLAMP2512N.TCT?
The TCLAMP2512N.TCT has a reverse stand-off voltage (VRWM) of 25V, meaning it can continuously withstand up to 25V DC or RMS on its input pins without significant leakage or degradation. This makes it suitable for 24V industrial systems and USB PD 5V–20V variable bus applications where 25V headroom is required. Exceeding 25V risks premature triggering or accelerated wear.
How does TCLAMP2512N.TCT achieve constant clamping voltage across surge current and temperature?
TCLAMP2512N.TCT uses a surge-rated FET as its core protection element, activated by a precision trigger circuit. As surge current increases, the FET's RDS(on) decreases, maintaining clamping voltage near the trigger circuit's breakdown level (≈27.6V). This architecture avoids the linear VC = VBR + IPP × RDYN behavior of TVS diodes, delivering stable clamping from –40°C to +125°C and 1A to 40A.
Can TCLAMP2512N.TCT be used in place of a standard TVS diode on a 24V power rail?
Yes - TCLAMP2512N.TCT is a drop-in functional replacement for 24V TVS diodes in most cases, offering superior performance: 27.6V clamping at 40A versus typical TVS values of 36–42V, plus stable voltage across temperature. However, its DFN-6 pinout requires matching PCB layout; unlike two-terminal TVS devices, it uses three input and three ground pins that must all be connected to achieve rated performance.
What is the recommended PCB layout for TCLAMP2512N.TCT to ensure full 40A surge capability?
To achieve full 40A rating, TCLAMP2512N.TCT requires all three input pins (4–6) tied together via a single low-inductance trace to the protected line, and all three ground pins (1–3) connected to a solid ground plane using multiple vias. Place the device within 5mm of the connector or surge entry point. Avoid stubs or splits in the GND or IN traces - any discontinuity increases inductance and degrades clamping response during fast transients like ESD.
Does TCLAMP2512N.TCT meet IEC 61000-4-5 surge immunity requirements for industrial equipment?
Yes - TCLAMP2512N.TCT is rated for 40A peak pulse current with 8/20μs waveform per IEC 61000-4-5, meeting Level 4 (2kV line-to-ground, 1kV line-to-line) requirements for industrial environments when used with appropriate source impedance (e.g., 2Ω series resistor). Its 27.6V clamping ensures protected circuits remain within safe operating area even under worst-case surge conditions at elevated temperatures.
TCLAMP2512N.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UFDFN Exposed Pad
- Series:
- TransClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- 2.7V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 120A (8/20µs)
- Power - Peak Pulse:
- 2300W (2.3kW)
- Power Line Protection:
- Yes
- Applications:
- Ethernet, Telecom
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2626P10 (2.6x2.6)
TCLAMP2512N.TCT FAQ
1.How can I place an order for TCLAMP2512N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCLAMP2512N.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 TCLAMP2512N.TCT reliable?
The price and inventory of TCLAMP2512N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCLAMP2512N.TCT is usually 5 days.
3.What payment methods are accepted for TCLAMP2512N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCLAMP2512N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCLAMP2512N.TCT?
TCLAMP2512N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCLAMP2512N.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 TCLAMP2512N.TCT?
For technical support, including TCLAMP2512N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCLAMP2512N.TCT requirements.
6.How does Aetrix verify that TCLAMP2512N.TCT is sourced from the original manufacturer or authorized distributors?
All TCLAMP2512N.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 TCLAMP2512N.TCT meets industry standards.
7.What is the process for return or replacement of TCLAMP2512N.TCT?
All TCLAMP2512N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with TCLAMP2512N.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 TCLAMP2512N.TCT part is unused and in its original packaging.
Return procedure for TCLAMP2512N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCLAMP2512N.TCT Tags
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Diodes Incorporated
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