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Semtech Corporation TS30042-M018QFNR
- Part No.:
- TS30042-M018QFNR
- Manufacturer:
- Semtech Corporation
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TS30042-M018QFNR.pdf
- Description:
- IC REG BUCK 1.8V 2A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,300
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Product details
Overview
TS30042-M018QFNR from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and a stable 27.5–28V clamping voltage across temperature and current range - enabling robust USB PD and Type-C bus protection.
For engineers reviewing the TS30042-M018QFNR datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge, low dynamic resistance (<20 mΩ), junction capacitance (175 pF at 22V), and DFN 1.6×1.6mm 6-lead package compatibility with high-density USB and industrial PCB layouts.
Technical Context
The TS30042-M018QFNR uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
It operates across –40°C to +125°C with <600 nA reverse leakage at 22V, 175 pF junction capacitance at 1 MHz, and 1120 W peak pulse power handling - making it suitable for industrial-grade load switch input protection and USB Type-C VBus line safeguarding where thermal drift and voltage overshoot must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs + 1.2/50μs combo wave) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards for connector-facing protection. |
| Dynamic Resistance | 20 mΩ - enables low-voltage-drop shunting, minimizing energy dissipation in silicon and stabilizing clamping across current range. |
| Junction Capacitance | 175 pF at 22V, 1 MHz - compatible with USB PD power path (not signal lines); requires separate low-C TVS for SS/DP/DM lanes. |
Pinout & Package
TS30042-M018QFNR is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads and 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 minimize inductance and maximize 40A capability. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., USB PD VBus); parallel connection ensures uniform current sharing and optimal thermal distribution during transients. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V from 24A to 40A - eliminates need for over-spec'ed IPP rating to meet voltage safety margins. |
| Temperature-stable protection | Clamping remains 27.5–28 V from –40°C to +125°C - avoids derating or thermal shutdown in industrial enclosures. |
| Low dynamic resistance | 20 mΩ enables efficient shunting with minimal self-heating - supports repeated surge events without parameter drift. |
| High-energy surge rating | 1120 W peak pulse power (8/20μs) - sustains multi-event lightning-induced surges per IEC 61000-4-5 without degradation. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V USB PD VBus lines against ESD, lightning-induced surges, and hot-plug transients in portable docking stations and power adapters. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at Type-C connector, clamping transients before they reach PD controller or buck converter. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false OVP trips and ensures reliable operation where standard TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment exposed to 1kV/42Ω surges. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage stress on internal FET gate oxide and drain-source junction during EOS events. Use Value: Clamps below 28V while handling 40A - keeps load switch within safe SOA, avoiding latch-up or permanent failure during field-deployed surge exposure. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Power Line |
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT gateways and edge sensors subjected to EFT bursts (±4kV, 5/50ns) per IEC 61000-4-4. IC Role / Device Role / Timing Role: Solid-state transient suppressor replacing Zener-based solutions to eliminate leakage-induced battery drain and improve long-term reliability. Use Value: Delivers <600 nA leakage at 22V and ±4kV EFT immunity - extends battery life while maintaining fail-safe protection during repetitive noise events. |
Use Scenario: Protecting 22V backup power inputs in enterprise SSDs and NVMe storage modules against EOS during hot-swap or power-fail recovery sequences. IC Role / Device Role / Timing Role: High-reliability shunt device placed upstream of PMIC or charge controller to prevent overvoltage damage during capacitor discharge transients. Use Value: Stable 27.5–28V clamping ensures no voltage overshoot reaches sensitive NAND controller or DRAM buffers - preserving data integrity during power transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | Identical electrical specs, same DFN 1.6×1.6mm package, identical marking code "T22" - confirmed pin-to-pin and functional replacement. | No difference; validated for same USB PD, load switch, and industrial use cases per Semtech documentation. | Select when requiring direct Semtech second-source with identical qualification and traceability. |
| Littelfuse SP3022-01WTG | TVS diode (not TDS architecture); higher clamping (~38V at 24A/125°C), 120 pF capacitance, SOD-323 package - lacks constant-clamp behavior and thermal stability. | Suitable only for lower-temp, lower-IPP applications; cannot replace TS30042-M018QFNR where clamping voltage margin is tight. | Consider only if board space allows larger footprint and design tolerates >10V higher clamping at elevated temperature. |
Compared with TS30042-M018QFNR, TDS2211P offers identical performance and drop-in compatibility, while SP3022-01WTG trades clamping stability and thermal resilience for smaller package size and lower cost - making it viable only in non-critical, ambient-temperature-limited deployments.
Availability
TS30042-M018QFNR is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT 22V rail protection requiring stable component supply, long lifecycle support, and full compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for TS30042-M018QFNR 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 semiconductors for power management, protection, and signal integrity applications.
The TS30042-M018QFNR belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where clamping voltage stability across temperature and current is critical.
FAQ
What is the primary function of the TS30042-M018QFNR in a circuit?
The TS30042-M018QFNR functions as a solid-state transient diverting suppressor that protects 22V-rated power or I/O lines from EOS events including ESD, lightning surges, and EFT bursts. It uses a precision-triggered FET to clamp transients at 27.5–28V with minimal voltage rise across 24–40A and –40°C to +125°C - ensuring downstream components like USB PD controllers remain within safe operating limits. The TS30042-M018QFNR achieves this via low dynamic resistance (20 mΩ) and stable junction characteristics.
How does the TS30042-M018QFNR differ from standard TVS diodes?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), the TS30042-M018QFNR maintains near-constant clamping (27.5–28V) from 24A to 40A due to its FET-based architecture and decreasing RDS(on). It also exhibits stable clamping across temperature - whereas typical TVS devices increase clamping by >5V from –40°C to +125°C. The TS30042-M018QFNR thus enables tighter voltage margins and eliminates need for overrated IPP in thermally demanding designs.
What are the recommended PCB layout practices for TS30042-M018QFNR?
Place TS30042-M018QFNR as close as possible to the protected connector (e.g., USB Type-C port) to minimize trace inductance. Connect all three GND pins (1, 2, 3) to a solid ground plane using multiple vias, and tie all three IN pins (4, 5, 6) together with a short, wide trace. Avoid thermal pads - energy is dissipated in the silicon, not the package. Follow Semtech's land pattern for DFN 1.6×1.6mm; ensure solder mask defined pads and controlled impedance routing for the protected line. This layout preserves the TS30042-M018QFNR's 40A surge capability and fast response.
Can TS30042-M018QFNR be used for USB SuperSpeed (SS) differential pairs?
No, TS30042-M018QFNR is not suitable for USB SuperSpeed (TX/RX) or DP/DM differential signal lines due to its 175 pF junction capacitance at 22V, which would severely degrade signal integrity and violate USB 3.x eye diagram requirements. It is specifically designed for single-ended 22V power rail protection (e.g., VBus). For SS/DP/DM lines, Semtech recommends low-capacitance TVS devices such as RClamp3371ZC (<0.25 pF). The TS30042-M018QFNR must be applied only to power paths, never high-speed data lanes.
Is TS30042-M018QFNR compliant with environmental and safety standards?
Yes, TS30042-M018QFNR is Pb-free, halogen-free, and RoHS/WEEE compliant. Its molding compound meets UL 94V-0 flammability rating. It is qualified per IEC 61000-4-2 (±30kV ESD), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A 8/20μs, ±1kV 1.2/50μs), and operates reliably from –40°C to +125°C. Semtech provides full traceability, tape-and-reel packaging (3,000 units per 7″ reel), and lifecycle management - confirming TS30042-M018QFNR meets industrial and commercial environmental compliance requirements without exemptions.
TS30042-M018QFNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
TS30042-M018QFNR FAQ
1.How can I place an order for TS30042-M018QFNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TS30042-M018QFNR 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 TS30042-M018QFNR reliable?
The price and inventory of TS30042-M018QFNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS30042-M018QFNR is usually 5 days.
3.What payment methods are accepted for TS30042-M018QFNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS30042-M018QFNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS30042-M018QFNR?
TS30042-M018QFNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS30042-M018QFNR 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 TS30042-M018QFNR?
For technical support, including TS30042-M018QFNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS30042-M018QFNR requirements.
6.How does Aetrix verify that TS30042-M018QFNR is sourced from the original manufacturer or authorized distributors?
All TS30042-M018QFNR 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 TS30042-M018QFNR meets industry standards.
7.What is the process for return or replacement of TS30042-M018QFNR?
All TS30042-M018QFNR units undergo pre-shipment inspection (PSI). If there is an issue with TS30042-M018QFNR, 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 TS30042-M018QFNR part is unused and in its original packaging.
Return procedure for TS30042-M018QFNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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