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Semtech Corporation PCLAMP1211P.TGT
- Part No.:
- PCLAMP1211P.TGT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
PCLAMP1211P.TGT.pdf
- Description:
- TVS DIODE 13.5VWM 28VC SLP2018P6
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
PCLAMP1211P.TGT from Semtech is a transient diverting suppressor designed for high-energy EOS protection of 12V-rated I/O or power lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 15.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a DFN 1.6 × 1.6 × 0.55 mm package.
For engineers reviewing the PCLAMP1211P.TGT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low leakage (<600 nA at 12V), junction capacitance (175 pF), and compatibility with load switch input protection schemes requiring precise 12V bus safeguarding.
Technical Context
PCLAMP1211P.TGT 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-15.5V at 24A and 15.6V at 40A-due to the FET's decreasing RDS(on) under surge conditions.
The device features three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to maximize surge current handling and minimize parasitic inductance. Its functional architecture enables stable clamping across –40°C to +125°C without thermal derating, making it suitable for high-reliability embedded and industrial power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 12 V - Maximum continuous DC operating voltage on protected line; defines safe steady-state bus operation. |
| Clamping Voltage | 15.5 V at IPP = 24 A (1.2/50 µs + 8/20 µs combo wave) - Limits transient overvoltage to protect downstream 12V-rated ICs like USB PD controllers. |
| Peak Pulse Current | 40 A (tp = 8/20 µs) - Withstands high-energy surges per IEC 61000-4-5, enabling compliance with industrial lightning surge standards. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Provides robust electrostatic discharge immunity for exposed connectors and ports. |
| Junction Capacitance | 175 pF at VR = 12 V, f = 1 MHz - Low enough to avoid signal integrity degradation on medium-speed buses (e.g., USB 2.0, SMBus). |
| Dynamic Resistance | 20 mΩ (measured 1–40 A, tp = 8/20 µs) - Enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Reverse Leakage | 600 nA max at VRWM = 12 V - Ensures negligible standby power loss and avoids interference with low-current sensing circuits. |
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 |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to maximize surge current capability and thermal dissipation. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS or data line); ensures uniform current sharing and reduced trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies only ±0.1 V across full 24–40 A surge range-enables predictable protection margin for 12V systems. |
| Temperature-stable clamping | Clamps at 15.5 V from –40°C to +125°C-eliminates thermal derating calculations required for standard TVS diodes. |
| Low dynamic resistance | 20 mΩ enables sub-1V overshoot during fast 8/20 µs surges-critical for protecting sensitive load switches and e-fuses. |
| High-energy ESD rating | ±30 kV contact/air meets IEC 61000-4-2 Level 4-provides first-line defense against human-body-model ESD events at connectors. |
| Space-efficient packaging | 1.6 × 1.6 mm footprint saves >50% board area vs. SO-8 or SOT-23 TVS solutions-ideal for compact USB Type-C and IoT designs. |
Applications
| USB Type-C Power Delivery | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 12V VBUS lines in USB-C receptacles where PD negotiation may expose rails to ±1kV surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Primary EOS suppressor placed between connector and load switch or PD controller. Use Value: Maintains clamping at 15.5V across temperature-prevents damage to 12V-rated PD controllers even at 125°C ambient. |
Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) subjected to lightning-induced surges in remote meters or robotics. IC Role / Device Role / Timing Role: Shunt-based transient diverter that activates within nanoseconds to clamp overvoltage before internal FET breakdown. Use Value: 20 mΩ dynamic resistance limits voltage overshoot to <1V during 40A surges-preserves MOSFET gate oxide integrity. |
| IoT Sensor Node Power Rails | 12V Industrial Control Bus |
Use Scenario: Protecting 12V supply inputs of battery-backed IoT edge nodes deployed in electrically noisy factory environments. IC Role / Device Role / Timing Role: Standoff protector for always-on power domains subject to EFT bursts (IEC 61000-4-4, ±4 kV). Use Value: 600 nA max leakage at 12V prevents measurable battery drain-extends multi-year operational life in energy-constrained deployments. |
Use Scenario: Securing 12V CAN or RS-485 power rails in programmable logic controllers (PLCs) exposed to inductive switching transients. IC Role / Device Role / Timing Role: High-energy transient suppressor co-located with bus interface ICs to limit common-mode overvoltage. Use Value: 175 pF capacitance avoids signal distortion on 1 Mbps CAN FD or 10 Mbps RS-485 links-maintains timing margins and bit error rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS1211P | Same FET-based architecture, identical 12V working voltage and 15.5V clamping, but rated for 30A (vs. 40A) peak pulse current. | Limited to lower-energy surge environments (e.g., consumer USB peripherals); not recommended for industrial 1kV compliance. | Select TDS1211P only if system-level surge testing confirms ≤30A requirement and space constraints allow same 1.6×1.6mm footprint. |
| SP1003-010 | Standard bi-directional TVS diode; 12V VRWM, 19.5V clamping at 24A; higher dynamic resistance (~150 mΩ); clamping rises with temperature. | Suitable for cost-sensitive, non-critical applications where ±15kV ESD suffices and thermal stability is secondary. | Choose SP1003-010 only for legacy designs already validated with TVS behavior; avoid where clamping voltage drift above 125°C compromises reliability. |
Compared with TDS1211P and SP1003-010, PCLAMP1211P.TGT provides superior surge robustness (40A vs. 30A/24A), tighter clamping stability (±0.1V vs. ±2V drift), and lower dynamic impedance-making it the preferred choice for mission-critical 12V industrial and USB PD protection where thermal margin and voltage predictability are design-critical.
Availability
PCLAMP1211P.TGT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and 12V IoT sensor node power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for PCLAMP1211P.TGT 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 semiconductor company specializing in analog and mixed-signal ICs for precision protection, signal integrity, and wireless infrastructure.
PCLAMP1211P.TGT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 12V power and interface protection applications demanding flat clamping and temperature insensitivity.
FAQ
What is the maximum continuous operating voltage for PCLAMP1211P.TGT?
The maximum continuous operating voltage (VRWM) of PCLAMP1211P.TGT is 12 V. This value defines the highest DC or RMS voltage the device can withstand without entering conduction during normal operation. Exceeding 12 V risks premature triggering and accelerated wear. PCLAMP1211P.TGT is specifically rated for 12V bus protection and must not be used on 22V or higher rails unless requalified.
How does PCLAMP1211P.TGT achieve stable clamping voltage across temperature?
PCLAMP1211P.TGT achieves stable clamping via a surge-rated FET architecture rather than a PN-junction TVS. When triggered, the FET enters a low-RDS(on) state (<20 mΩ), causing clamping voltage to track the fixed breakdown voltage of the integrated trigger circuit-not the temperature-dependent VBR of a diode. As a result, PCLAMP1211P.TGT clamps at 15.5 V from –40°C to +125°C with minimal variation.
Can PCLAMP1211P.TGT be used to protect USB 2.0 data lines?
No-PCLAMP1211P.TGT is not suitable for USB 2.0 data line protection due to its 175 pF junction capacitance, which would severely degrade signal integrity at 480 Mbps. It is intended for 12V power rail or low-speed control line protection (e.g., CC, SBU, enable signals). For USB 2.0 differential pairs, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF).
What is the recommended PCB layout for optimal surge performance of PCLAMP1211P.TGT?
For optimal surge performance, connect all three IN pins (4–6) via a single short, wide trace to the protected line, and all three GND pins (1–3) to a solid ground plane using multiple vias. Place PCLAMP1211P.TGT within 2 mm of the connector entry point to minimize inductive coupling. Avoid thermal pads-energy is dissipated in the silicon FET, not the package bottom.
Does PCLAMP1211P.TGT meet IEC 61000-4-5 surge immunity requirements?
Yes-PCLAMP1211P.TGT is rated for 40 A peak pulse current (tp = 8/20 µs), exceeding the ±1 kV surge level (RS = 42 Ω, CS = 0.5 µF) defined in IEC 61000-4-5 for industrial environments. Its constant clamping at 15.5 V ensures protected ICs remain below absolute maximum ratings during such events, provided layout guidelines are followed.
PCLAMP1211P.TGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN Exposed Pad
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.5V (Max)
- Voltage - Breakdown (Min):
- 14.5V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1500pF @ 1MHz
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2018P6
PCLAMP1211P.TGT FAQ
1.How can I place an order for PCLAMP1211P.TGT through Aetrix?
Please submit a Request for Quotation (RFQ) for PCLAMP1211P.TGT 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 PCLAMP1211P.TGT reliable?
The price and inventory of PCLAMP1211P.TGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCLAMP1211P.TGT is usually 5 days.
3.What payment methods are accepted for PCLAMP1211P.TGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCLAMP1211P.TGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCLAMP1211P.TGT?
PCLAMP1211P.TGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCLAMP1211P.TGT 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 PCLAMP1211P.TGT?
For technical support, including PCLAMP1211P.TGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCLAMP1211P.TGT requirements.
6.How does Aetrix verify that PCLAMP1211P.TGT is sourced from the original manufacturer or authorized distributors?
All PCLAMP1211P.TGT 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 PCLAMP1211P.TGT meets industry standards.
7.What is the process for return or replacement of PCLAMP1211P.TGT?
All PCLAMP1211P.TGT units undergo pre-shipment inspection (PSI). If there is an issue with PCLAMP1211P.TGT, 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 PCLAMP1211P.TGT part is unused and in its original packaging.
Return procedure for PCLAMP1211P.TGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCLAMP1211P.TGT Tags
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