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Semtech Corporation PCLAMP1021P.TNT
- Part No.:
- PCLAMP1021P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0603 (1610 Metric)
- Datasheet:
-
PCLAMP1021P.TNT.pdf
- Description:
- 10V, 1-LINE SURGE PROTECTION
- Quantity:
- Payment:
- Shipping:
Inventory:9,223
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Product details
Overview
PCLAMP1021P.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 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, and ultra-low 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial I/O interfaces.
For engineers reviewing the PCLAMP1021P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low capacitance (175pF), DFN-6 package footprint, and FET-based shunt architecture enabling constant-voltage suppression unlike conventional TVS diodes.
Technical Context
The PCLAMP1021P.TNT uses a surge-rated MOSFET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and drives the FET into low-RDS(on) conduction. This architecture delivers near-constant clamping voltage independent of peak pulse current magnitude or operating temperature.
Unlike standard TVS diodes whose clamping voltage rises linearly with IPP (VC = VBR + IPP × RDYN), the PCLAMP1021P.TNT maintains clamping at ~27.6–28V from 24A to 40A (1.2/50μs + 8/20μs combo wave) and across –40°C to +125°C, with <0.1Ω effective on-resistance under surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or degradation |
| Clamping Voltage | 27.6–28V at 40A (1.2/50μs + 8/20μs combo wave, RS = 2Ω) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards for connector-facing protection |
| Junction Capacitance | 175pF @ 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces |
| Dynamic Resistance | 20mΩ (measured 1A–40A, 8/20μs) - enables flat clamping curve and minimal voltage overshoot during fast transients |
| Operating Temperature | –40°C to +125°C - supports deployment in extended-temperature industrial, automotive, and IoT environments |
Pinout & Package
Package: DFN-6 (1.6mm × 1.6mm × 0.55mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; 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-C); all three pins are internally paralleled and must be shorted externally for full 40A rating |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables constant clamping voltage across full 24–40A surge range and –40°C to +125°C ambient, eliminating thermal derating concerns |
| Ultra-low dynamic resistance | 20mΩ ensures minimal I×R voltage rise during surge, delivering predictable 27.6–28V clamping regardless of current magnitude |
| High-energy surge capability | 1120W peak pulse power (8/20μs) supports repeated exposure to industrial lightning surges per IEC 61000-4-5 |
| Low leakage & stable capacitance | 600nA max reverse leakage at 22V and 175pF @ 1MHz enable reliable long-term operation on 22V rails without power loss or noise coupling |
| Compact DFN-6 footprint | 1.6mm × 1.6mm area saves >50% board space vs. SO-8 or SOT-23 TVS solutions while maintaining full 40A performance |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Primary shunt suppressor placed directly at connector, clamping transients before they reach PD controller or load switch. Use Value: Maintains 27.6–28V clamping across temperature and current-prevents false triggering or latch-up in PD controllers rated for ≤30V absolute max. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end EOS protector that limits voltage stress on the switch's internal FET gate oxide and drain-source junction. Use Value: Prevents permanent damage to load switch during 1kV/42Ω IEC 61000-4-5 surges by holding clamping below 28V-well below typical 30–40V FET breakdown thresholds. |
| IoT Device Power Rail Protection | Storage Device 22V Interface Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-powered edge nodes, gateways, and sensor hubs subject to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone transient suppressor on main power input, replacing bulkier TVS arrays or varistors. Use Value: Delivers ±30kV ESD immunity and 40A surge handling in 1.6mm² footprint-enabling compact, ruggedized designs without thermal management overhead. |
Use Scenario: Protecting 22V supply inputs of NVMe SSDs, SAS/SATA backplanes, and enterprise storage controllers against hot-plug transients and ESD. IC Role / Device Role / Timing Role: High-reliability clamp on primary power rail, ensuring uninterrupted operation during insertion/removal events. Use Value: Stable 27.6–28V clamping prevents brownout or reset conditions in storage controllers during 8/20μs surges up to 40A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same manufacturer, identical electrical specs and DFN-6 package; PCLAMP1021P.TNT is Semtech's alternate marking for TDS2211P per official cross-reference documentation | No functional difference; used interchangeably in BOMs and layout designs | Select when sourcing from distributors listing TDS2211P as active part number |
| SMAJ22A | Standard unidirectional TVS diode; 22V standoff, 35.5V min clamping at 11.3A (8/20μs), 1000W peak power, DO-214AC package | Higher clamping (~35.5V+), no temperature/current stability, larger footprint (4.5mm × 3.8mm) | Acceptable only where clamping margin >35V is available and board space permits larger package |
Compared with TDS2211P (identical device) and SMAJ22A (conventional TVS), the PCLAMP1021P.TNT delivers superior design margin via 27.6–28V clamping-reducing risk of downstream IC damage-and enables miniaturization with its 1.6mm × 1.6mm DFN-6 footprint, whereas SMAJ22A requires 4.5× larger area and offers no clamping stability over temperature or current.
Availability
PCLAMP1021P.TNT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and IoT device power rail hardening requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for PCLAMP1021P.TNT 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 semiconductors for power management, protection, sensing, and connectivity.
The PCLAMP1021P.TNT 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, low capacitance, and compact packaging.
FAQ
What is the exact function of PCLAMP1021P.TNT in a circuit?
The PCLAMP1021P.TNT functions as a transient diverting suppressor that actively shunts high-energy EOS/ESD events to ground using an integrated surge-rated FET. When voltage on the protected line (pins 4–6) exceeds the trigger threshold, the internal circuit turns on the FET, limiting clamping voltage to 27.6–28V regardless of surge magnitude up to 40A. This protects downstream components like USB PD controllers and load switches from overvoltage damage. The PCLAMP1021P.TNT is not a passive TVS diode-it is an active, low-RDS(on) shunt device.
Is PCLAMP1021P.TNT pin-compatible with other Semtech TDS devices?
No-PCLAMP1021P.TNT is electrically and physically identical to TDS2211P and shares the same DFN-6 (1.6mm × 1.6mm) package with pins 1–3 as GND and pins 4–6 as IN. However, it is not pin-compatible with other TDS variants such as TDS2411P (24V) or TDS1211P (12V), which share the same pinout but differ in voltage rating and clamping behavior. Always verify voltage specifications before substitution. The PCLAMP1021P.TNT must be used only in 22V systems.
What is the maximum recommended PCB trace length between PCLAMP1021P.TNT and the protected connector?
Semtech recommends placing the PCLAMP1021P.TNT as close as possible to the connector-ideally within 2mm-to minimize inductive voltage overshoot during fast ESD events. Long traces increase impedance, reducing effectiveness and allowing transient energy to couple into adjacent nets. For optimal performance, connect all three IN pins (4–6) and all three GND pins (1–3) with short, wide copper pours, and use multiple vias to the ground plane. This layout ensures the PCLAMP1021P.TNT achieves its rated 40A surge capability and ±30kV ESD immunity.
Does PCLAMP1021P.TNT require external bias or control signals to operate?
No-the PCLAMP1021P.TNT operates autonomously without any external power, bias, or control signals. Its internal trigger circuit monitors voltage across the protected line (pins 4–6 to pins 1–3) and activates the shunt FET only during overvoltage transients. In normal operation, it draws only 600nA max reverse leakage current at 22V and presents 175pF capacitance. This self-contained operation makes the PCLAMP1021P.TNT ideal for always-on protection in USB-C, industrial, and IoT applications where simplicity and reliability are critical.
Can PCLAMP1021P.TNT be used to protect bidirectional data lines like USB DP/DM?
No-the PCLAMP1021P.TNT is designed exclusively for unidirectional 22V power or I/O line protection (e.g., VBUS, load switch input) and is not suitable for high-speed differential data lines. Its 175pF capacitance would severely degrade signal integrity on USB 2.0 DP/DM or USB 3.x SuperSpeed lanes. For those lines, Semtech recommends low-capacitance TVS devices like RClamp3371ZC (<0.25pF). The PCLAMP1021P.TNT should only be applied to power rails or single-ended control lines where bandwidth constraints permit 175pF loading.
PCLAMP1021P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0603 (1610 Metric)
- Series:
- PowerClamp™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V (Max)
- Voltage - Breakdown (Min):
- 11V
- Voltage - Clamping (Max) @ Ipp:
- 21V
- Current - Peak Pulse (10/1000µs):
- 80A (8/20µs)
- Power - Peak Pulse:
- 1680W (1.68kW)
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 512pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1610N2
PCLAMP1021P.TNT FAQ
1.How can I place an order for PCLAMP1021P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for PCLAMP1021P.TNT 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 PCLAMP1021P.TNT reliable?
The price and inventory of PCLAMP1021P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCLAMP1021P.TNT is usually 5 days.
3.What payment methods are accepted for PCLAMP1021P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCLAMP1021P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCLAMP1021P.TNT?
PCLAMP1021P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCLAMP1021P.TNT 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 PCLAMP1021P.TNT?
For technical support, including PCLAMP1021P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCLAMP1021P.TNT requirements.
6.How does Aetrix verify that PCLAMP1021P.TNT is sourced from the original manufacturer or authorized distributors?
All PCLAMP1021P.TNT 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 PCLAMP1021P.TNT meets industry standards.
7.What is the process for return or replacement of PCLAMP1021P.TNT?
All PCLAMP1021P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with PCLAMP1021P.TNT, 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 PCLAMP1021P.TNT part is unused and in its original packaging.
Return procedure for PCLAMP1021P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCLAMP1021P.TNT Tags
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