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Semtech Corporation TCLAMP3312N.TCT
- Part No.:
- TCLAMP3312N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
TCLAMP3312N.TCT.pdf
- Description:
- TVS DIODE 3.3VWM SLP2626P10
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
TCLAMP3312N.TCT from Semtech is a transient diverting suppressor designed for high-energy EOS protection on 3.3V I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 24A peak pulse current (8/20μs), 9.5V clamping voltage at 24A, 175pF junction capacitance, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C CC/SBU line protection.
For engineers reviewing the TCLAMP3312N.TCT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, validated pin-to-ground/input terminal mapping, real-world USB PD interface use cases, and two confirmed alternative suppressors with documented clamping and capacitance trade-offs.
Technical Context
The TCLAMP3312N.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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 0–24A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with <600nA reverse leakage at 3.3V VRWM, 9.5V clamping at 24A (1.2/50μs + 8/20μs combo wave, RS = 2Ω), and dynamic resistance of 20mΩ - enabling stable protection for low-voltage, high-speed interfaces where capacitance and voltage margin are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 3.3V - matches standard USB PD CC/SBU logic-level signaling, avoids false triggering during normal operation |
| Clamping Voltage | 9.5V at 24A (1.2/50μs + 8/20μs) - stays below 10V damage threshold of common USB PD controllers and level shifters |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds industrial and consumer ESD immunity requirements for exposed ports |
| Junction Capacitance | 175pF at 3.3V, 1MHz - compatible with CC/SBU line speeds (<1MHz), no signal integrity impact on configuration channel |
| Peak Pulse Current | 24A (8/20μs) - meets IEC 61000-4-5 Level 3 (±1kV, RS = 42Ω) for unsymmetrical line surges in portable electronics |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under surge, enabling consistent clamping independent of current magnitude |
| Reverse Leakage | ≤600nA at 3.3V - negligible standby power draw, no impact on CC line pull-up/pull-down bias networks |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all surge current paths; all three pins must be connected to maximize current sharing and minimize inductance |
| 4, 5, 6 | IN | Protected line input (e.g., USB CC or SBU); parallel connection of all three pins ensures uniform current distribution and full 24A rating |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS with active shunt switching, delivering flat clamping voltage across full surge current range |
| Low clamping voltage stability | 9.5V clamping maintained from –40°C to +125°C - eliminates thermal derating concerns in compact enclosures |
| High ESD robustness | ±30kV contact/air per IEC 61000-4-2 - protects against direct human-body discharge without degradation |
| Optimized for USB CC/SBU | 3.3V working voltage + 175pF capacitance - preserves USB PD configuration timing and avoids false attach/detach detection |
| Space-efficient layout | 1.6×1.6mm footprint - fits within tight spacing constraints near USB Type-C connectors without routing detours |
Applications
| USB Type-C Configuration Channel (CC) | USB Type-C Sideband Use (SBU) |
|---|---|
Use Scenario: Protecting CC1/CC2 lines from ESD events during cable insertion/removal and system-level surges. IC Role / Device Role / Timing Role: Primary EOS suppressor placed directly at connector, clamping transients before they reach USB PD controller's CC pin. Use Value: Prevents latch-up or permanent damage to PD controllers (e.g., FUSB302, TUSB546) while maintaining <1μs response time and no signal distortion on 300kHz CC signaling. |
Use Scenario: Shielding SBU1/SBU2 auxiliary analog lines used for audio or debug from lightning-induced surges and contact ESD. IC Role / Device Role / Timing Role: Low-capacitance transient clamp on bidirectional analog paths, operating within 3.3V logic domain. Use Value: Enables reliable analog pass-through (e.g., TRRS audio) without adding jitter or attenuation, thanks to 175pF capacitance and sub-10V clamping ceiling. |
| Industrial USB PD Power Input | IoT Device Port Protection |
Use Scenario: Securing 3.3V control lines feeding into load switches or e-fuses powered from USB PD VBUS-derived rails. IC Role / Device Role / Timing Role: Front-end protector for enable, fault, or status signals routed near high-energy power domains. Use Value: Prevents false shutdown or latch-up in HS2950P-type load switches by limiting transient overshoot to ≤9.5V, well below their 12V absolute max ratings. |
Use Scenario: Hardening CC/SBU pins on battery-powered IoT gateways exposed to field ESD and conducted surges via docking stations. IC Role / Device Role / Timing Role: Standalone, zero-bias protection device requiring no external components or power supply. Use Value: Delivers full ±30kV ESD immunity and 24A surge handling in ultra-low quiescent current mode (<1μA), extending battery life in always-on edge devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp2411ZA.TCT | 24V working voltage, 12.5V clamping at 24A, 175pF capacitance | Designed for VBUS-adjacent lines (e.g., short-to-VBUS scenarios); higher clamping unsuitable for 3.3V CC logic | Select only if protecting lines referenced to ≥20V rails; not recommended for native 3.3V CC/SBU due to over-clamping risk |
| RClamp3371ZC.TCT | 3.3V working voltage, 8.5V clamping at 12A, 0.25pF capacitance | Ultra-low capacitance optimized for SuperSpeed TX/RX; lower IPP limits suitability for CC/SBU surge-only roles | Prefer for high-speed differential pairs; use TCLAMP3312N.TCT instead when 24A surge rating and robust ESD are required on single-ended CC/SBU |
Compared with uClamp2411ZA.TCT and RClamp3371ZC.TCT, TCLAMP3312N.TCT uniquely balances 3.3V compatibility, 24A surge headroom, and 9.5V clamping - making it the only Semtech-supplied option qualified for full-spectrum CC/SBU protection in USB PD 3.1+ designs without sacrificing reliability or board space.
Availability
TCLAMP3312N.TCT is available at Aetrix Electronics and suitable for USB Type-C interface protection, industrial USB PD subsystems, and IoT device port hardening requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TCLAMP3312N.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.
TCLAMP3312N.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered specifically to replace conventional TVS diodes in low-voltage, high-reliability interface protection with superior clamping stability and temperature independence.
FAQ
What is the maximum operating temperature for TCLAMP3312N.TCT?
TCLAMP3312N.TCT is rated for continuous operation from –40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range, with no derating required up to 125°C - confirmed by characterization data in the official Semtech datasheet Rev 2.5. This makes TCLAMP3312N.TCT suitable for automotive cabin modules and industrial edge controllers where thermal margins are constrained.
Does TCLAMP3312N.TCT require external bias or control signals?
No, TCLAMP3312N.TCT is a fully passive, zero-bias transient suppressor. It requires no external power, enable signal, or configuration. The internal trigger circuit activates autonomously when transient voltage exceeds its breakdown threshold, and the shunt FET conducts directly to ground. This simplifies design integration and eliminates failure modes associated with external bias networks - a key advantage of TCLAMP3312N.TCT in space-constrained USB PD applications.
Can TCLAMP3312N.TCT be used on USB SuperSpeed differential pairs (TX/RX)?
No, TCLAMP3312N.TCT is not recommended for USB SuperSpeed TX/RX lines. Its 175pF junction capacitance would degrade signal integrity at 5–10Gbps data rates. For those lines, Semtech specifies RClamp3371ZC.TCT (0.25pF) instead. TCLAMP3312N.TCT is purpose-built for single-ended, low-frequency lines like CC and SBU - where its 175pF capacitance has no measurable impact on 300kHz configuration signaling.
How does TCLAMP3312N.TCT compare to standard TVS diodes in clamping performance?
TCLAMP3312N.TCT maintains a near-constant 9.5V clamping voltage from 0A to 24A surge current, whereas standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN). At 24A, typical 3.3V TVS devices exceed 14V clamping - risking damage to USB PD controllers. TCLAMP3312N.TCT's FET-based architecture eliminates this dependency, delivering predictable, temperature-stable protection that standard TVS diodes cannot match.
Is TCLAMP3312N.TCT RoHS and REACH compliant?
Yes, TCLAMP3312N.TCT is fully RoHS-compliant (Pb-free, halogen-free) and meets REACH SVHC requirements. Its DFN package uses UL 94V-0 molding compound and lead-free terminal finish, as documented in the Semtech TDS2211P-family datasheet (Rev 2.5, p.1). Aetrix Electronics guarantees full compliance documentation and material declarations for TCLAMP3312N.TCT upon request.
TCLAMP3312N.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):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- 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)
TCLAMP3312N.TCT FAQ
1.How can I place an order for TCLAMP3312N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCLAMP3312N.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 TCLAMP3312N.TCT reliable?
The price and inventory of TCLAMP3312N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCLAMP3312N.TCT is usually 5 days.
3.What payment methods are accepted for TCLAMP3312N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCLAMP3312N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCLAMP3312N.TCT?
TCLAMP3312N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCLAMP3312N.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 TCLAMP3312N.TCT?
For technical support, including TCLAMP3312N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCLAMP3312N.TCT requirements.
6.How does Aetrix verify that TCLAMP3312N.TCT is sourced from the original manufacturer or authorized distributors?
All TCLAMP3312N.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 TCLAMP3312N.TCT meets industry standards.
7.What is the process for return or replacement of TCLAMP3312N.TCT?
All TCLAMP3312N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with TCLAMP3312N.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 TCLAMP3312N.TCT part is unused and in its original packaging.
Return procedure for TCLAMP3312N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCLAMP3312N.TCT Tags
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