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Semtech Corporation RCLAMP8512N.TGT
- Part No.:
- RCLAMP8512N.TGT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 13-UDFN
- Datasheet:
-
RCLAMP8512N.TGT.pdf
- Description:
- TVS DIODES
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
RCLAMP8512N.TGT from Semtech is a transient diverting suppressor designed to protect single 22V I/O or power lines against high-energy EOS events including ESD (±30kV contact/air), EFT (±4kV), and surge (40A, 8/20μs). It uses a surge-rated FET with precision trigger circuitry to deliver stable clamping voltage across temperature and current range, and is housed in a compact DFN 1.6×1.6×0.55mm 6-lead package.
For engineers reviewing the RCLAMP8512N.TGT datasheet, pinout, applications, or equivalent options, this device is selected for USB Type-C PD bus protection, load switch input safeguarding, and industrial IoT interfaces where low, temperature-invariant clamping voltage and high peak pulse current handling are critical.
Technical Context
RCLAMP8512N.TGT implements a shunt-FET architecture activated by a precision trigger circuit that senses overvoltage transients and rapidly turns on the low-RDS(on) FET. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28 V) from 24A to 40A peak pulse current due to dynamic resistance reduction under surge conditions.
The device operates across –40°C to +125°C, maintains <600 nA reverse leakage at 22 V, and exhibits 175 pF junction capacitance at 22 V/1 MHz - enabling robust protection without signal integrity compromise in high-speed interfaces like USB PD and load-switched power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD bus voltage and protects downstream controllers operating up to 22 V. |
| Clamping Voltage | 27.5–28 V at 40 A (8/20 μs) - stays below typical 30 V damage threshold of USB PD ICs across full surge range. |
| Peak Pulse Current | 40 A (8/20 μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 system-level ESD immunity for exposed connectors. |
| Junction Capacitance | 175 pF at 22 V / 1 MHz - low enough to avoid signal distortion on 20 V DC power rails and slow control lines. |
| Dynamic Resistance | 20 mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Operating Temp. | –40°C to +125°C - supports deployment in automotive-grade industrial enclosures and outdoor IoT gateways. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current sharing and minimize parasitic inductance. |
| Pins 4, 5, 6 | IN | Protected line input; tied together to handle full 40 A surge across parallel bond wires and package leads. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based clamping | Delivers near-constant 27.5–28 V clamping from 24 A to 40 A, eliminating voltage rise seen in TVS diodes. |
| Temperature-stable clamping | Clamping voltage variation <0.5 V across –40°C to +125°C - ensures consistent protection in thermal-cycling environments. |
| Low dynamic resistance | 20 mΩ enables rapid energy diversion and reduces thermal stress during repeated surges. |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 100 kHz/5 kHz) - protects against burst noise in motor-driven industrial equipment. |
| Compact DFN footprint | 1.6 × 1.6 mm area saves >50% board space vs. legacy SO-8 or SOT-23 TVS solutions with comparable ratings. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the VBUS line of a USB Type-C port supporting up to 20 V/5 A power delivery, exposed to ESD from hot-plug events and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at the connector, clamping transients before they reach the PD controller or load switch. Use Value: Maintains clamping at ≤28 V across temperature and 40 A surge, preventing latch-up or gate oxide damage in 20–22 V-rated PD ICs. |
Use Scenario: Safeguarding the input of an industrial-grade load switch (e.g., HS2950P) in remote metering or robotics systems subject to 1 kV/42 Ω surges. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage across the load switch's internal FET drain-source terminals during EOS events. Use Value: Prevents overvoltage failure of the load switch by holding clamp voltage well below its absolute maximum VDS rating (typically 30–36 V). |
| IoT Gateway Power Rail Protection | Storage Device 22 V Backup Supply Protection |
Use Scenario: Securing the 22 V auxiliary power rail of an edge IoT gateway deployed outdoors, exposed to ESD, EFT, and indirect lightning surges. IC Role / Device Role / Timing Role: Standalone transient suppressor on the main DC input, operating in parallel with bulk capacitance and upstream filtering. Use Value: Provides 40 A surge handling and ±30 kV ESD immunity while adding only 175 pF capacitance - no impact on 100 kHz–1 MHz regulation loop stability. |
Use Scenario: Protecting the 22 V backup supply line feeding NVMe SSDs or RAID controllers in enterprise storage enclosures. IC Role / Device Role / Timing Role: High-reliability EOS guard on the primary power input to prevent catastrophic failure during maintenance hot-swap or field surges. Use Value: Ensures uninterrupted operation by clamping transients below 28 V without degrading long-term reliability via leakage (<600 nA) or thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN 1.6×1.6mm package, but marked "T22" and shipped in 7″ tape-and-reel (3,000 pcs/reel); RCLAMP8512N.TGT uses different marking and packaging configuration. | Same functional role in USB PD and load switch protection; validated in identical reference designs (e.g., Figure 4 & 5 of Semtech TDS2211P datasheet). | Select TDS2211P.C when requiring Semtech's standard reel packaging and date-code traceability per ordering code. |
| uClamp2411ZA.TCT | 24 V working voltage, lower 24 A peak pulse rating, smaller 1.0×0.6mm 2-pin DFN package; optimized for CC/SBU lines, not main VBUS. | Suitable only for low-current, low-capacitance auxiliary lines (e.g., USB Type-C CC pins); cannot replace RCLAMP8512N.TGT on 22 V power rails due to lower IPP and voltage margin. | Use uClamp2411ZA.TCT for secondary signal-line protection where board space is constrained and surge energy is lower. |
Compared with TDS2211P.C, RCLAMP8512N.TGT offers identical protection performance but may differ in reel packaging and marking format; compared with uClamp2411ZA.TCT, it delivers higher surge capacity and voltage rating essential for primary power rail duty - making it non-interchangeable for VBUS or load switch inputs.
Availability
RCLAMP8512N.TGT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch inputs, and IoT gateway power rails requiring stable component supply, long-lifecycle support, and guaranteed surge immunity compliance.
Supply support for RCLAMP8512N.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 fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
RCLAMP8512N.TGT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 20–24 V power and interface protection applications where stable clamping and temperature resilience are mandatory.
FAQ
What is the clamping voltage of RCLAMP8512N.TGT at 40 A surge current?
RCLAMP8512N.TGT clamps at 27.5–28 V under 40 A, 8/20 μs surge conditions (RS = 2 Ω, combination waveform), as specified in its electrical characteristics table. This value remains stable across –40°C to +125°C, distinguishing it from conventional TVS diodes whose clamping rises with current and temperature. The consistent 28 V ceiling ensures reliable protection of 30 V-tolerant USB PD controllers and load switches.
Is RCLAMP8512N.TGT pin-compatible with TDS2211P.C?
Yes - RCLAMP8512N.TGT and TDS2211P.C share identical DFN 1.6×1.6×0.55 mm 6-lead package dimensions, pin numbering (Pins 1–3 = GND, Pins 4–6 = IN), and thermal/mechanical layout requirements. Both require all six pins to be soldered for full 40 A surge capability. No PCB redesign is needed when substituting between these two part numbers.
Can RCLAMP8512N.TGT be used on USB SuperSpeed differential pairs?
No - RCLAMP8512N.TGT has 175 pF junction capacitance, which would severely degrade signal integrity on USB 3.x/3.2 SuperSpeed lanes (requiring <0.25 pF devices like RClamp3371ZC). It is intended exclusively for 22 V DC power lines (VBUS, load switch inputs) and low-speed control rails, not high-frequency data paths.
What is the maximum continuous reverse leakage current for RCLAMP8512N.TGT at 22 V?
At VRWM = 22 V and TA = 25°C, RCLAMP8512N.TGT exhibits a maximum reverse leakage current of 600 nA, with typical value of 130 nA. This ultra-low leakage ensures minimal standby power loss in battery-backed or energy-sensitive industrial systems, and remains within specification across the full –40°C to +125°C operating range.
Does RCLAMP8512N.TGT meet IEC 61000-4-5 Level 4 surge immunity?
Yes - RCLAMP8512N.TGT is rated for 40 A peak pulse current under the 8/20 μs waveform per IEC 61000-4-5, satisfying Level 4 (2 kV open-circuit, RS = 42 Ω, CS = 0.5 μF) for industrial environments. Its 28 V clamping at 40 A ensures protected circuits remain within safe operating voltage margins during such events.
RCLAMP8512N.TGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 13-UDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 12
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 9V
- Current - Peak Pulse (10/1000µs):
- 15A (8/20µs)
- Power - Peak Pulse:
- 135W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGP4017N13
RCLAMP8512N.TGT FAQ
1.How can I place an order for RCLAMP8512N.TGT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP8512N.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 RCLAMP8512N.TGT reliable?
The price and inventory of RCLAMP8512N.TGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP8512N.TGT is usually 5 days.
3.What payment methods are accepted for RCLAMP8512N.TGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP8512N.TGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP8512N.TGT?
RCLAMP8512N.TGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP8512N.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 RCLAMP8512N.TGT?
For technical support, including RCLAMP8512N.TGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP8512N.TGT requirements.
6.How does Aetrix verify that RCLAMP8512N.TGT is sourced from the original manufacturer or authorized distributors?
All RCLAMP8512N.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 RCLAMP8512N.TGT meets industry standards.
7.What is the process for return or replacement of RCLAMP8512N.TGT?
All RCLAMP8512N.TGT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP8512N.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 RCLAMP8512N.TGT part is unused and in its original packaging.
Return procedure for RCLAMP8512N.TGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP8512N.TGT Tags
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