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Semtech Corporation SC104IMLTRT
- Part No.:
- SC104IMLTRT
- Manufacturer:
- Semtech Corporation
- Category:
- LED Drivers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
SC104IMLTRT.pdf
- Description:
- IC LED DRIVER RGLTR 8MLPD
- Quantity:
- Payment:
- Shipping:
Inventory:1,540
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Product details
Overview
SC104IMLTRT from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 24–40A, and 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the SC104IMLTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for EOS-critical bus protection designs.
Technical Context
The SC104IMLTRT 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. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and junction capacitance of 175pF at 22V/1MHz. Its 6-pin DFN package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 24–40A (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. |
| Dynamic Resistance | 20mΩ (8/20μs, 1–40A range) - enables flat clamping response and low voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with moderate-speed power bus protection; not suitable for >100MHz signal lines. |
Pinout & Package
SC104IMLTRT is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no internal thermal pad required; energy dissipated in silicon). All six terminals must be connected per functional role to achieve rated surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to low-inductance ground plane via multiple vias. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected bus (e.g., USB PD VBus); connection of all three maximizes current sharing and reduces trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across full 24–40A surge range - eliminates design margin inflation needed with traditional TVS diodes. |
| Temperature-stable protection | Clamping remains ~27.5–28V from −40°C to +125°C - enables reliable operation in uncontrolled thermal environments (e.g., industrial enclosures). |
| Low dynamic resistance | 20mΩ enables <1V overshoot during 100A/μs dI/dt events - critical for protecting sensitive load switches and e-fuses. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated lightning-induced surges in outdoor or factory-floor equipment. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBus lines in USB-C receptacles against ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, diverting surge current to ground before reaching PD controller or power multiplexer. Use Value: Maintains clamping ≤28V across temperature and current range - prevents latch-up or gate oxide damage in 24V-tolerant PD ICs like STUSB4500 or TUSB7320. |
Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P, TPS229xx) in remote meters, robotics, and IoT edge nodes. IC Role / Device Role / Timing Role: Front-end transient suppressor placed upstream of load switch VIN, limiting voltage seen by internal FET's drain-source junction. Use Value: Keeps clamped voltage below 30V - avoids avalanche failure or gate-source overvoltage in 30V-rated load switches during 1kV/42Ω surges. |
| Industrial Equipment Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Securing 24V auxiliary rails in PLC I/O modules, motor drives, and programmable logic controllers against field-wiring transients. IC Role / Device Role / Timing Role: Standalone EOS suppressor on main DC input, coordinated with upstream fuse and downstream LDO/regulator. Use Value: Delivers 40A surge handling with minimal board area - replaces bulkier multi-chip TVS+MOV solutions while meeting IEC 61000-4-5 Level 4. |
Use Scenario: Protecting 20V DC-in ports on ultrabooks and tablets against accidental adapter misconnection and ESD during docking/undocking. IC Role / Device Role / Timing Role: Secondary-level protection between barrel jack/USB-C port and system PMIC input, complementing primary front-end TVS. Use Value: 175pF capacitance avoids signal integrity issues on 20V rail - unlike sub-10pF data-line TVS, it balances surge robustness and layout simplicity. |
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-6 package, identical marking (T22), and shared Semtech datasheet - confirmed drop-in replacement per ordering documentation. | No functional difference; used interchangeably in USB-C and industrial designs where tape-and-reel packaging matches production flow. | Select TDS2211P.C when standard 3,000-unit 7″ reel packaging is required for SMT line compatibility. |
| SP1002-02WTG | Lower 30A IPP rating, higher 33V clamping at 24A, and 220pF capacitance - lacks flat-clamp FET architecture; uses stacked Zener + thyristor topology. | Less suitable for temperature-critical or high-IPP applications; requires larger voltage margin for PD controller survival at 125°C. | Choose SP1002-02WTG only if legacy qualification or dual-sourcing mandates non-Semtech parts, accepting reduced clamping stability. |
Compared with SC104IMLTRT, TDS2211P.C offers identical performance and form factor with standardized reel packaging, while SP1002-02WTG trades clamping flatness and temperature stability for broader distributor availability - making SC104IMLTRT optimal for new designs demanding predictable, low-voltage EOS protection.
Availability
SC104IMLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and 22V DC power rail protection requiring stable component supply, long-term lifecycle support, and consistent surge performance across temperature extremes.
Supply support for SC104IMLTRT 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.
The SC104IMLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 20–24V power bus protection where flat clamping and temperature stability are mandatory.
FAQ
What is the exact package type and dimensions of SC104IMLTRT?
SC104IMLTRT uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed copper pad (no thermal slug). Pin pitch is 0.5mm, and pin 1 is marked by a laser dot. The land pattern follows Semtech's recommended footprint in the TDS2211P datasheet, Rev 2.5, page 8.
Does SC104IMLTRT require a thermal pad or heatsink on the PCB?
No. SC104IMLTRT dissipates surge energy within the silicon die, not through conduction to the PCB. Semtech explicitly states "no thermal pad is needed" in the datasheet (page 6). Ground connections via multiple vias to an inner-layer ground plane provide sufficient thermal and current-handling capability.
Can SC104IMLTRT protect high-speed data lines such as USB SuperSpeed or PCIe?
No. SC104IMLTRT has 175pF junction capacitance at 22V - too high for signal integrity on >100MHz differential pairs. It is intended solely for power or low-speed control lines (e.g., VBus, CC, SBU, enable inputs). For data lines, Semtech recommends RClamp3371ZC (<0.25pF) alongside SC104IMLTRT in full USB-C protection schemes.
How does SC104IMLTRT's clamping behavior differ from standard TVS diodes?
Unlike TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SC104IMLTRT maintains ~27.5–28V clamping from 24A to 40A due to its FET-based shunt architecture. This eliminates derating for temperature or current - a key advantage confirmed in Figure 3 of the TDS2211P datasheet.
Is SC104IMLTRT compliant with RoHS, REACH, and halogen-free standards?
Yes. SC104IMLTRT is Pb-free, halogen-free, and compliant with RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU. Its molding compound meets UL 94V-0 flammability rating, and lead finish is 100% matte tin, as specified in the Mechanical Characteristics section of the TDS2211P datasheet.
SC104IMLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 1.55V
- Voltage - Supply (Max):
- 10V
- Voltage - Output:
- 38V
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLPD (3x3)
SC104IMLTRT FAQ
1.How can I place an order for SC104IMLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC104IMLTRT 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 SC104IMLTRT reliable?
The price and inventory of SC104IMLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC104IMLTRT is usually 5 days.
3.What payment methods are accepted for SC104IMLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC104IMLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC104IMLTRT?
SC104IMLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC104IMLTRT 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 SC104IMLTRT?
For technical support, including SC104IMLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC104IMLTRT requirements.
6.How does Aetrix verify that SC104IMLTRT is sourced from the original manufacturer or authorized distributors?
All SC104IMLTRT 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 SC104IMLTRT meets industry standards.
7.What is the process for return or replacement of SC104IMLTRT?
All SC104IMLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC104IMLTRT, 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 SC104IMLTRT part is unused and in its original packaging.
Return procedure for SC104IMLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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