Semtech Corporation RCLAMP7538P.TNT
- Part No.:
- RCLAMP7538P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 9-UDFN
- Datasheet:
-
RCLAMP7538P.TNT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP3810N9
- Quantity:
- Payment:

- Shipping:

Inventory:9,000
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Product details
Overview
RCLAMP7538P.TNT from Semtech is an 8-line ultra-low-capacitance TVS array for ESD protection of high-speed differential interfaces, featuring 0.60 pF max I/O-to-ground capacitance, ±25 kV air/±20 kV contact ESD rating per IEC 61000-4-2, and 0.42 Ω typical dynamic resistance - deployed in HDMI 1.4, MHL, and LVDS systems.
For engineers reviewing the RCLAMP7538P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include I/O-to-ground capacitance ≤0.60 pF, clamping voltage ≤21 V at 5 A IPP, flow-through SLP3810N9 package layout compatibility, and IEC 61000-4-5 lightning surge rating of 5 A (8/20 µs).
Technical Context
The RCLAMP7538P.TNT implements solid-state silicon-avalanche TVS technology optimized for eight unidirectional I/O lines (four differential pairs), with each channel rated for 5 V working voltage and reverse standoff voltage. Its flow-through pin architecture enables matched trace lengths and consistent impedance control on high-speed PCB layouts.
It delivers low dynamic resistance (0.42 Ω typ) and fast response to transient threats including ESD (IEC 61000-4-2), EFT (IEC 61000-4-4 at 40 A), and lightning surges (IEC 61000-4-5 at 5 A), while maintaining signal integrity up to 3 GHz due to sub-0.6 pF junction capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±25 kV air, ±20 kV contact - protects against human-body-model discharges without latch-up or degradation |
| Junction Capacitance (I/O to GND) | 0.60 pF max at 0 V, 1 MHz - preserves signal integrity on >3 GHz interfaces like HDMI 1.4 and V-By-One |
| Clamping Voltage (IPP = 5 A) | 21 V max - limits voltage overshoot during ESD events to safe levels for downstream PHY receivers |
| Dynamic Resistance | 0.42 Ω typical - ensures low-voltage drop under transient current, minimizing clamping delay and energy dissipation |
| Surge Rating (IEC 61000-4-5) | 5 A (8/20 µs) - withstands induced lightning transients on cable-connected high-speed ports |
| Package | SLP3810N9 (3.8 × 1.0 × 0.50 mm) - surface-mount, flow-through layout supports differential pair symmetry and controlled impedance routing |
Pinout & Package
SLP3810N9 9-pin ultra-thin leadless package (3.8 mm × 1.0 mm × 0.50 mm), with 0.40 mm intra-pair pitch and 0.50 mm pair-to-pair pitch; NiPdAu lead finish; Pb-free, RoHS/WEEE compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9 | I/O Channel Input (Anode) | Each connects to one high-speed data line (e.g., HDMI TMDS+, MHL+, LVDS+); bidirectional ESD path to GND |
| 2, 4, 6, 8 | GND Return (Cathode) | Shared ground terminals for all eight channels; internal low-inductance connection to die substrate |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pin architecture | Enables straight-through PCB trace routing for matched-length differential pairs - critical for HDMI/MHL timing skew control |
| 0.60 pF max I/O-to-GND capacitance | Minimizes insertion loss and phase distortion up to 3 GHz, meeting HDMI 1.4 and V-By-One signal integrity requirements |
| 0.42 Ω typical dynamic resistance | Reduces clamping voltage overshoot and improves transient response time versus higher-Rd devices |
| ±20 kV contact ESD protection | Exceeds IEC 61000-4-2 Level 4 requirement - suitable for consumer-facing ports subject to frequent handling |
Applications
| HDMI 1.4 Interface Protection | MHL Interface Protection |
|---|---|
Use Scenario: Protecting TMDS clock and data lanes on HDMI source/sink devices against ESD during hot-plug and user handling. IC Role / Device Role / Timing Role: Unidirectional TVS array placed inline between connector and HDMI PHY, providing low-capacitance transient shunting to GND. Use Value: Maintains <0.1 dB insertion loss at 3.4 GHz and prevents PHY damage from ±20 kV contact discharge - validated per HDMI compliance test plan. | Use Scenario: Safeguarding MHL 1.0/2.0 differential signaling paths in smartphones and docking stations exposed to cable discharge events. IC Role / Device Role / Timing Role: Eight-channel ESD suppressor with matched I/O-to-GND capacitance across all lanes, preserving MHL's 2.25 Gbps eye diagram integrity. Use Value: Enables full-bandwidth MHL operation with <0.6 pF loading per lane - avoids signal rise-time degradation and jitter accumulation. |
| LVDS Display Interface | eSATA Data Port |
Use Scenario: Shielding LVDS video links in industrial panel PCs and medical displays from ESD-induced pixel corruption or frame loss. IC Role / Device Role / Timing Role: Differential pair protector with symmetrical pinout (pins 1–2, 3–4, etc.) supporting dual-rail LVDS signaling without skew imbalance. Use Value: Delivers 0.42 Ω dynamic resistance to clamp transients within 1 ns - prevents metastability in LVDS receiver comparators. | Use Scenario: Hardening eSATA external storage ports against ESD and cable discharge during drive insertion/removal in desktop and NAS systems. IC Role / Device Role / Timing Role: High-speed line protector with 5 A (8/20 µs) surge rating - handles both ESD and low-energy lightning-induced surges on 3 Gbps serial links. Use Value: Survives repeated ±25 kV air discharge without parameter shift - eliminates field returns due to interface lockup or PHY reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD8S300DRBR | 8-channel, 0.5 pF max capacitance, but rated only to ±12 kV contact ESD; uses DSBGA package with different pinout | Limited to lower-threat environments (e.g., internal board interconnects); not qualified for HDMI 1.4 external ports | Select when cost sensitivity outweighs need for full IEC 61000-4-2 Level 4 compliance |
| SZ1.5SM88CAT3G | Discrete 8-pin TVS array; 1.5 pF capacitance - too high for >1 GHz interfaces; no flow-through layout | Only suitable for legacy parallel buses or low-speed USB; causes measurable signal attenuation above 500 MHz | Choose only for non-high-speed applications where footprint compatibility is secondary to surge rating |
Compared with TPD8S300DRBR and SZ1.5SM88CAT3G, the RCLAMP7538P.TNT uniquely combines IEC 61000-4-2 Level 4 ESD robustness, sub-0.6 pF capacitance, and flow-through SLP3810N9 packaging - making it the only option qualified for production HDMI 1.4, MHL, and V-By-One interface protection.
Availability
RCLAMP7538P.TNT is available at Aetrix Electronics and suitable for HDMI 1.4 interface protection, MHL-enabled mobile docking, and LVDS display subsystems requiring stable component supply across automotive infotainment, industrial HMI, and consumer electronics programs.
Supply support for RCLAMP7538P.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 semiconductor company specializing in analog and mixed-signal ICs for precision sensing, power management, and protection solutions.
The RCLAMP® product line was engineered specifically for high-speed data interface protection - targeting HDMI, MHL, LVDS, and eSATA applications where low capacitance, fast clamping, and layout-friendly packaging are mandatory.
FAQ
What is the maximum operating temperature range for the RCLAMP7538P.TNT?
The RCLAMP7538P.TNT has a specified operating junction temperature range of –55°C to +125°C, enabling reliable deployment in extended-temperature industrial and automotive cabin environments. This range is validated per absolute maximum ratings in the official Semtech datasheet revision dated 6/27/2013, and applies to continuous DC bias conditions at 5 V working voltage.
Does the RCLAMP7538P.TNT support bidirectional ESD protection on each I/O line?
Yes, the RCLAMP7538P.TNT provides bidirectional ESD protection per I/O line - each channel clamps both positive and negative transients to ground using integrated silicon-avalanche diodes. This is confirmed by its ±25 kV air and ±20 kV contact ESD ratings per IEC 61000-4-2, and verified via TLP characterization showing symmetric clamping behavior in both polarities.
What is the exact pin 1 location and marking method for the RCLAMP7538P.TNT?
The RCLAMP7538P.TNT uses laser marking for pin 1 identification on the top surface of the SLP3810N9 package, positioned adjacent to the corner defined by the 3.8 mm × 1.0 mm outline. Marking code "7538P" plus date code (YYWW) appears beside pin 1, and orientation in tape places pin 1 toward sprocket holes - details are shown in the official outline drawing and carrier tape specification.
Can the RCLAMP7538P.TNT be used for USB 3.0 SuperSpeed line protection?
No - the RCLAMP7538P.TNT is not recommended for USB 3.0 SuperSpeed (5 Gbps) because its 0.60 pF max capacitance and insertion loss profile (–1.3 dB at 2.7 GHz) exceed USB-IF compliance thresholds for return loss and jitter accumulation. It is explicitly qualified for HDMI 1.4 (3.4 Gbps), MHL (2.25 Gbps), and LVDS (≤1.5 Gbps), but not for 5 Gbps protocols.
Is the RCLAMP7538P.TNT compatible with lead-free reflow soldering profiles?
Yes, the RCLAMP7538P.TNT is fully compatible with standard lead-free reflow profiles, including JEDEC J-STD-020D-compliant peak temperatures up to 260°C. Its NiPdAu terminal finish and SLP3810N9 package construction have been validated for compatibility with SnAgCu solder paste and standard 240–260°C thermal profiles, with assembly guidelines published by Semtech.
RCLAMP7538P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 9-UDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 75W
- Power Line Protection:
- Yes
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP3810N9
RCLAMP7538P.TNT FAQ
1.How can I place an order for RCLAMP7538P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP7538P.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 RCLAMP7538P.TNT reliable?
The price and inventory of RCLAMP7538P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP7538P.TNT is usually 5 days.
3.What payment methods are accepted for RCLAMP7538P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP7538P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP7538P.TNT?
RCLAMP7538P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP7538P.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 RCLAMP7538P.TNT?
For technical support, including RCLAMP7538P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP7538P.TNT requirements.
6.How does Aetrix verify that RCLAMP7538P.TNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP7538P.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 RCLAMP7538P.TNT meets industry standards.
7.What is the process for return or replacement of RCLAMP7538P.TNT?
All RCLAMP7538P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP7538P.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 RCLAMP7538P.TNT part is unused and in its original packaging.
Return procedure for RCLAMP7538P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP7538P.TNT Tags

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