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Semtech Corporation RCLAMP0512TQTNT
- Part No.:
- RCLAMP0512TQTNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
RCLAMP0512TQTNT.pdf
- Description:
- TVS DIODE 5VWM 8.5VC SGP1006N3T
- Quantity:
- Payment:
- Shipping:
Inventory:11,667
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Product details
Overview
RClamp0512TQTNT from Semtech is a dual-line transient voltage suppression (TVS) diode array designed for secondary ESD and surge protection on high-speed data lines operating at 5V. It delivers 30kV IEC 61000-4-2 contact/air ESD immunity, 20A IEC 61000-4-5 lightning surge capability, and ultra-low 3pF max junction capacitance-enabling use in 10/100/1000 Ethernet and USB 2.0 interfaces without signal integrity degradation.
For engineers reviewing the RClamp0512TQTNT datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 Grade 1 qualification (-40°C to +125°C), SGP1006N3T 3-pin flow-through package, snap-back clamping architecture, and verified performance in differential line protection with pin 3 as common ground reference.
Technical Context
RClamp0512TQTNT employs silicon-avalanche snap-back ("crow-bar") technology to achieve low clamping voltage (8.5V @ 20A) and extremely low dynamic resistance (0.075Ω typical). Its multi-junction structure switches from high-impedance off-state (≤0.1μA leakage at 5V) to low-impedance conduction when voltage exceeds 6.5V breakdown threshold, then returns to off-state once current falls below 75–250mA holding current.
The device protects two independent 5V data lines (pins 1 and 2 referenced to pin 3) with differential capacitance of ≤2pF between pins 1–2 and ≤3pF from either pin to ground-critical for preserving 100MHz+ signal bandwidth. Its 1.0 × 0.6 × 0.4 mm SGP1006N3T package enables compact placement adjacent to RJ-45 magnetics or USB connectors to minimize parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Maximum continuous DC operating voltage across protected lines without leakage or conduction. |
| ESD Withstand | ±30 kV (IEC 61000-4-2 contact/air) - Survives worst-case human-body ESD events without degradation. |
| Surge Current | 20 A (8/20 µs) - Handles lightning-induced surges per IEC 61000-4-5 with clamping voltage ≤8.5 V. |
| Junction Capacitance | ≤3 pF (pin-to-ground), ≤2 pF (pin-to-pin) - Enables use on 1000BASE-T and USB 2.0 without measurable signal distortion. |
| Dynamic Resistance | 0.075 Ω (typ) - Minimizes voltage overshoot during fast transients (e.g., ESD rise time <1 ns). |
| Breakdown Voltage | 6.5–11.5 V - Ensures reliable triggering above 5V working voltage while avoiding false trips. |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C) - Validated for under-hood automotive Ethernet and infotainment systems. |
Pinout & Package
Package: SGP1006N3T - 3-pin, flow-through, lead-free NiAu-finished surface-mount package measuring 1.0 × 0.6 × 0.4 mm; optimized for minimal PCB area (0.6 mm²) and low-inductance grounding via pin 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Data Line A Anode | Connects to first high-speed signal line (e.g., ETH_TX+, USB_D+); forms one half of dual-line protection path. |
| Pin 2 | Data Line B Anode | Connects to second high-speed signal line (e.g., ETH_TX−, USB_D−); paired with Pin 1 for differential protection. |
| Pin 3 | Common Cathode / Ground Reference | Must be connected directly to solid ground plane via low-inductance path; serves as shared return for both protected lines. |
Key Features
| Feature | Design Value |
|---|---|
| Snap-back clamping architecture | Reduces clamping voltage by >30% vs. standard TVS diodes under 20A surge, limiting stress on PHY ICs. |
| Ultra-low 3pF max capacitance | Preserves signal integrity on 1000BASE-T and USB 2.0 differential pairs up to 480 Mbps without equalization. |
| AEC-Q100 Grade 1 qualification | Validates reliability for automotive Ethernet gateways, ADAS camera links, and infotainment head units. |
| Flow-through SGP1006N3T package | Enables straight trace routing through pins 1–2, eliminating stubs and reducing impedance discontinuity. |
| 0.075Ω dynamic resistance | Minimizes voltage overshoot during sub-nanosecond ESD events, critical for protecting 28nm/16nm PHYs. |
Applications
| Automotive Ethernet | Industrial 1000BASE-T |
|---|---|
|
Use Scenario: Protecting 1000BASE-T PHY interfaces in vehicle domain controllers exposed to ESD from service port access and cable discharge events. IC Role / Device Role / Timing Role: Secondary surge suppressor placed on PHY side of integrated magnetics; clamps transients before they reach Ethernet MAC/PHY silicon. Use Value: Prevents latch-up or permanent damage to automotive-grade PHYs while maintaining <1 ns jitter impact due to 3pF capacitance. |
Use Scenario: Securing industrial Ethernet ports on PLCs and HMIs connected to factory-floor cabling prone to lightning-induced surges. IC Role / Device Role / Timing Role: Dual-line TVS array suppressing common-mode and differential transients on twisted-pair data lanes per IEC 61000-4-5 Level 4. Use Value: Enables 20A surge survivability without derating at +85°C ambient, supporting extended industrial temperature operation. |
| USB 2.0 Host/Device Ports | RJ-45 Integrated Magnetics |
|
Use Scenario: ESD protection for D+/D− lines in USB 2.0 peripherals and host controllers subjected to ±15kV ISO-10605 contact discharge. IC Role / Device Role / Timing Role: Bidirectional clamping diode array referenced to system ground; pins 1/2 route D+/D−, pin 3 connects to ground plane. Use Value: Achieves <4.3V ESD clamping at 4A TLP, preventing data corruption and interface reset during hot-plug events. |
Use Scenario: Placement directly adjacent to RJ-45 connector magnetics to suppress fast-rising EFT (4kV) and ESD (30kV) coupled onto Ethernet pairs. IC Role / Device Role / Timing Role: Low-inductance transient suppressor mounted on same PCB side as magnetics; minimizes loop area for ground return path. Use Value: Reduces peak clamping voltage by up to 30V versus 2nH layout inductance-critical for protecting 1.8V/3.3V PHY I/O cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line ESD/surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-01UTG | Higher 5.5V working voltage; 0.5pF lower capacitance (2.5pF max); no AEC-Q100 qualification. | Better suited for 3.3V logic interfaces; lacks automotive temperature validation. | Select when protecting 3.3V USB or LVDS lines where lower capacitance outweighs automotive compliance needs. |
| ESD5Z5.0T1G | Single-line configuration; 5.0V working voltage; 12pF capacitance (4× higher); no 20A surge rating. | Limited to low-speed or non-differential applications; insufficient for 1000BASE-T or USB 2.0. | Only consider for cost-sensitive, non-high-speed applications where 3pF capacitance is not required. |
Compared with RClamp0512TQTNT, SP1003-01UTG offers tighter capacitance control but sacrifices automotive qualification, while ESD5Z5.0T1G lacks dual-line integration and surge robustness-making RClamp0512TQTNT the only option qualified for AEC-Q100 Grade 1 5V high-speed data line protection.
Availability
RClamp0512TQTNT is available at Aetrix Electronics and suitable for automotive Ethernet gateways, industrial 1000BASE-T equipment, and USB 2.0 peripheral designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for RClamp0512TQTNT 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, power management, and protection solutions.
The RClamp® product line targets high-reliability transient protection for high-speed digital interfaces-including automotive Ethernet, industrial networking, and consumer connectivity-where low capacitance and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum clamping voltage of RClamp0512TQTNT under a 20A IEC 61000-4-5 surge?
The maximum clamping voltage of RClamp0512TQTNT is 8.5 V when subjected to a 20A (8/20 µs) surge pulse per IEC 61000-4-5. This value is measured between pins 1 or 2 and pin 3, and reflects the device's snap-back behavior that lowers voltage during high-current conduction. The RClamp0512TQTNT achieves this performance while maintaining a 5V working voltage and 0.075Ω dynamic resistance-critical for safeguarding sensitive PHY ICs.
Can RClamp0512TQTNT be used for USB 3.0 SuperSpeed line protection?
No, RClamp0512TQTNT is not recommended for USB 3.0 SuperSpeed (5 Gbps) differential pairs due to its 3pF max capacitance, which exceeds the <0.3pF requirement for minimal insertion loss at 2.5 GHz. Semtech explicitly recommends RClamp3324T for USB 3.0 and RClamp0561Z for USB 3.1 SuperSpeed+. The RClamp0512TQTNT is validated for USB 2.0 (480 Mbps) and 10/100/1000 Ethernet only.
How is pin 3 of RClamp0512TQTNT configured in Ethernet PHY-side protection layouts?
In Ethernet PHY-side protection layouts, pin 3 of RClamp0512TQTNT must be connected directly to the system ground plane using multiple micro-vias to minimize inductance. This configuration establishes the common cathode reference for both protected lines (pins 1 and 2), enabling effective snap-back clamping during ESD or surge events. The RClamp0512TQTNT datasheet specifies that improper grounding of pin 3 increases clamping voltage by up to 30V per nanohenry of inductance-so direct, low-impedance grounding is mandatory.
Does RClamp0512TQTNT meet AEC-Q100 requirements for automotive use?
Yes, RClamp0512TQTNT is fully qualified to AEC-Q100 Grade 1, covering an operating temperature range of −40°C to +125°C. This qualification includes stress testing for thermal cycling, humidity bias, and high-temperature operating life-validating its suitability for under-hood automotive Ethernet applications such as ADAS camera links and gateway modules. The RClamp0512TQTNT datasheet explicitly cites AEC-Q100 Grade 1 compliance on page 1.
What is the junction capacitance between pins 1 and 2 of RClamp0512TQTNT?
The junction capacitance between pins 1 and 2 of RClamp0512TQTNT is 1.1–2.0 pF at 0V reverse bias and 1 MHz frequency, as specified in the Electrical Characteristics table on page 2 of the datasheet. This low inter-line capacitance ensures minimal crosstalk and signal degradation on differential pairs like USB D+/D− or Ethernet TX+/TX−, making the RClamp0512TQTNT suitable for high-speed data interfaces up to 1 Gbps.
RCLAMP0512TQTNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 8.5V
- Current - Peak Pulse (10/1000µs):
- 20A (1.2/50µs)
- Power - Peak Pulse:
- 170W
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 2pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGP1006N3T
RCLAMP0512TQTNT FAQ
1.How can I place an order for RCLAMP0512TQTNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0512TQTNT 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 RCLAMP0512TQTNT reliable?
The price and inventory of RCLAMP0512TQTNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0512TQTNT is usually 5 days.
3.What payment methods are accepted for RCLAMP0512TQTNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0512TQTNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0512TQTNT?
RCLAMP0512TQTNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0512TQTNT 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 RCLAMP0512TQTNT?
For technical support, including RCLAMP0512TQTNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0512TQTNT requirements.
6.How does Aetrix verify that RCLAMP0512TQTNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0512TQTNT 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 RCLAMP0512TQTNT meets industry standards.
7.What is the process for return or replacement of RCLAMP0512TQTNT?
All RCLAMP0512TQTNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0512TQTNT, 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 RCLAMP0512TQTNT part is unused and in its original packaging.
Return procedure for RCLAMP0512TQTNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0512TQTNT Tags
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