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Semtech Corporation M30
- Part No.:
- M30
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
M30.pdf
- Description:
- DIODE GEN PURP 3KV 330MA AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,509
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Product details
Overview
TDS2211P from Semtech is a transient diverting suppressor designed to protect single 22V I/O or power lines against high-energy EOS events including ±30kV ESD (IEC 61000-4-2), 40A surge (8/20μs), and ±4kV EFT (IEC 61000-4-4); it uses a surge-rated FET with precision trigger circuitry for stable clamping in USB Type-C PD, industrial equipment, and IoT device input protection.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include its constant 27.5–28V clamping across 24–40A surge current, 20mΩ dynamic resistance, 175pF junction capacitance at 22V, DFN 1.6×1.6mm 6-lead package, and operation from –40°C to +125°C.
Technical Context
The TDS2211P implements a voltage-triggered shunt architecture using a surge-rated MOSFET as the primary conduction element, activated by an integrated precision reference and drive circuit when transient voltage exceeds ~27V breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly flat due to decreasing RDS(on) under increasing surge current.
It operates as a bidirectional, single-line protector with three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3), requiring all six pins to be connected for full 40A rating. Its low 20mΩ dynamic resistance and minimal temperature coefficient ensure stable clamping from –40°C to +125°C without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or degradation |
| Clamping Voltage | 27.5–28V at 24–40A (1.2/50μs + 8/20μs combo wave, RS=2Ω) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V bus protection |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards without external staging |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with USB Type-C VBUS protection where signal integrity is secondary to robustness |
| Dynamic Resistance | 20mΩ (measured 1–40A, 8/20μs) - enables near-constant clamping by counteracting current-induced voltage rise |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, marked "T22" + date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to maximize surge current handling and minimize clamping overshoot |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., USB PD VBUS); all three required for full 40A rating and optimal thermal distribution |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage across 24–40A | Enables predictable protection margin for 24V-rated downstream ICs without current-dependent voltage rise |
| Stable clamping over –40°C to +125°C | Eliminates thermal derating calculations required for standard TVS diodes in industrial environments |
| Surge-rated FET + precision trigger circuit | Provides lower dynamic resistance and faster turn-on than avalanche diode-based TVS, reducing let-through energy |
| 175pF junction capacitance at 22V | Acceptable for DC power rail and low-speed control line protection without compromising surge robustness |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/100W PD negotiation. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to clamp lightning-induced surges and contact ESD before reaching PD controller and load switch. Use Value: Maintains clamping at ≤28V across full 40A surge and temperature range, preventing latch-up or gate oxide damage in 24V-tolerant PD controllers. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients in remote meters or robotics. IC Role / Device Role / Timing Role: Primary front-end EOS protector that limits voltage stress on the load switch's internal FET during 1.2/50μs + 8/20μs combination wave events. Use Value: Prevents premature failure of load switch due to overvoltage-induced avalanche breakdown by holding clamping voltage well below VDS(max). |
| IoT Device Power Rail Protection | Storage Device DC Input Protection |
Use Scenario: Securing 22V DC input rails in battery-powered or PoE-powered edge IoT gateways subject to ESD and induced surges. IC Role / Device Role / Timing Role: Single-line transient suppressor bridging unregulated input to PMIC or buck converter, absorbing fast-rising ESD and slower 8/20μs surges. Use Value: Delivers ±30kV ESD immunity and 40A surge capability in <2.6 mm² footprint-enabling compact, ruggedized designs without discrete TVS arrays. |
Use Scenario: Protecting SATA or NVMe storage module 22V auxiliary power inputs against hot-plug transients and board-level ESD. IC Role / Device Role / Timing Role: Standalone EOS suppressor on VCC rail upstream of LDO or DC-DC regulator, ensuring clean startup after transient exposure. Use Value: Low 20mΩ dynamic resistance minimizes voltage droop during surge, preserving regulation stability and avoiding brown-out resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A (8/20μs), higher clamping voltage rises with current and temperature | Limited to lower-energy surges; requires larger layout area and cannot meet 40A IEC 61000-4-5 without parallel devices | Choose SMAJ22A only if cost sensitivity outweighs clamping stability and space constraints. |
| SP1003-02HTG | Bi-directional TVS array; 24V VRWM, 38.9V VC @ 12A (8/20μs); higher capacitance (350pF), no temperature-stable clamping | Designed for data line protection; not rated for 40A single-line surge; unsuitable for VBUS due to excessive clamping | Select SP1003-02HTG only for low-capacitance, multi-line signal protection-not for 22V power rail suppression. |
Compared with SMAJ22A and SP1003-02HTG, the TDS2211P delivers significantly lower and thermally stable clamping (27.5–28V vs. ≥35.5V), supports full 40A surge in a 1.6×1.6mm DFN, and eliminates current- and temperature-dependent voltage drift-making it uniquely suited for high-reliability 22V power rail protection.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT device power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for TDS2211P 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.
The TDS2211P belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-energy EOS protection applications where stable clamping, wide temperature operation, and compact size are critical.
FAQ
What is the maximum continuous operating voltage for the TDS2211P?
The TDS2211P has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC or RMS without significant leakage current. This makes it suitable for protecting 20V USB PD VBUS lines and other 22V-rated power rails. Exceeding this voltage risks increased reverse leakage and potential device degradation over time.
How does the TDS2211P achieve constant clamping voltage across varying surge currents?
The TDS2211P achieves constant clamping by using a surge-rated FET whose RDS(on) decreases as surge current increases, counteracting the I×R voltage rise seen in conventional TVS diodes. Its precision trigger circuit activates the FET at ~27V, and the resulting clamping stays within 27.5–28V from 24A to 40A-verified per IEC 61000-4-5 combo-wave testing.
Can the TDS2211P be used to protect USB Type-C superspeed differential pairs?
No-the TDS2211P is not suitable for USB Type-C superspeed (TX/RX) lines due to its 175pF junction capacitance, which would severely degrade signal integrity. Semtech recommends low-capacitance TVS devices like RClamp3371ZC (<0.25pF) for those lines. The TDS2211P is intended exclusively for VBUS, CC, SBU, or other low-speed/high-energy protection points.
Why must all six pins of the TDS2211P be connected in the PCB layout?
All three GND pins (1–3) and all three IN pins (4–6) must be connected to achieve the full 40A peak pulse current rating and minimize parasitic inductance. Splitting connections reduces surge current sharing, raises clamping voltage, and risks localized overheating. Layout guidelines specify direct routing and multiple vias to ground plane to maintain performance.
Is the TDS2211P compliant with RoHS and halogen-free standards?
Yes-the TDS2211P is Pb-free, halogen-free, and fully compliant with RoHS and WEEE directives. Its molding compound meets UL 94V-0 flammability rating, and lead finish is lead-free. These compliance attributes are confirmed in the official Semtech datasheet Rev 2.5 and supported by Semtech's material declarations.
M30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 3000 V
- Current - Average Rectified (Io):
- 330mA
- Voltage - Forward (Vf) (Max) @ If:
- 5 V @ 125 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 250 nA @ 3000 V
- Capacitance @ Vr, F:
- 1.7pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -65°C ~ 175°C
M30 FAQ
1.How can I place an order for M30 through Aetrix?
Please submit a Request for Quotation (RFQ) for M30 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 M30 reliable?
The price and inventory of M30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30 is usually 5 days.
3.What payment methods are accepted for M30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30?
M30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30 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 M30?
For technical support, including M30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30 requirements.
6.How does Aetrix verify that M30 is sourced from the original manufacturer or authorized distributors?
All M30 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 M30 meets industry standards.
7.What is the process for return or replacement of M30?
All M30 units undergo pre-shipment inspection (PSI). If there is an issue with M30, 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 M30 part is unused and in its original packaging.
Return procedure for M30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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