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Semtech Corporation F30
- Part No.:
- F30
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
F30.pdf
- Description:
- DIODE GEN PURP 3KV 350MA AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,182
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Product details
Overview
TDS2211P from Semtech is a transient diverting suppressor designed for high-energy EOS protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, and stable 27.5–28V clamping voltage across temperature and current range-used in USB Type-C PD bus protection and industrial load switch input stages.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world clamping behavior vs. conventional TVS, and validated alternatives for 22V EOS protection in space-constrained USB PD and IoT designs.
Technical Context
The TDS2211P 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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with <20mΩ dynamic resistance (8/20μs), 175pF junction capacitance at 22V/1MHz, and reverse leakage ≤600nA at VRWM. Its functional architecture enables stable 27.5–28V clamping across 24–40A IPP and full temperature range-critical for USB PD controller survivability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or degradation |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - ensures protected ICs (e.g., USB PD controllers) stay below damage threshold |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds common system-level ESD requirements for consumer and industrial ports |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces |
| Dynamic Resistance | 20mΩ (8/20μs, 1–40A range) - enables flat clamping curve and minimal voltage rise under increasing surge current |
| Package | DFN 1.6×1.6×0.55mm, 6-lead - enables compact placement near USB-C connectors or load switch inputs with minimal PCB area |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Thermal pad not required; all GND and IN pins must be connected for rated surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to minimize inductance and maximize 40A capability |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB-C); parallel connection ensures uniform current sharing and optimal clamping stability |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage across IPP and temperature | 27.5–28V from –40°C to +125°C and 24–40A - eliminates derating uncertainty in thermal-critical applications |
| FET-based shunt architecture | Replaces fixed-RDYN TVS with active switching - reduces clamping voltage by ~10V vs. typical 22V TVS at 40A/125°C |
| Low dynamic resistance | 20mΩ - minimizes IR drop during surge, enabling tighter voltage margin control for sensitive downstream ICs |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - protects against repetitive fast transients in industrial motor drives and PLCs |
| Small-footprint DFN package | 1.6×1.6mm - saves >50% board area vs. comparable SO-8 or SOT-23 TVS solutions while maintaining 1120W peak power rating |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the 20–22V VBUS line in USB-C receptacles supporting up to 100W PD, exposed to ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting surge energy to ground before reaching PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping across temperature and 40A surge-prevents overvoltage damage to PD controllers rated for ≤30V absolute max. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation where 22V rails face repeated EOS events. IC Role / Device Role / Timing Role: Primary front-end protector for load switch VIN pin, limiting transient voltage to preserve internal FET gate oxide integrity. Use Value: Prevents latch-up or permanent failure of load switches by holding clamping voltage well below their 30–35V breakdown limits under 40A surge conditions. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V backup or auxiliary power rails in battery-powered IoT edge nodes deployed in electrically noisy environments (e.g., smart sensors in HVAC or lighting systems). IC Role / Device Role / Timing Role: Standalone EOS protector on non-data power lines, operating continuously across –40°C to +125°C ambient. Use Value: Delivers stable clamping without thermal runaway or parameter drift-enabling reliable long-term operation in unventilated enclosures. |
Use Scenario: Protecting 22V supercapacitor or LiFePO₄ backup supplies in enterprise SSDs or NAS units against ESD and system-level surges during hot-swap events. IC Role / Device Role / Timing Role: Low-capacitance, high-power suppressor on backup supply input, co-located with connector to minimize trace inductance. Use Value: 175pF capacitance avoids loading effects on backup supply regulation, while 40A rating handles worst-case capacitor discharge transients. |
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, no temperature stability | Higher clamping voltage limits use with 30V-tolerant ICs; requires derating above 85°C | Lower-cost option where 35.5V clamping is acceptable and thermal margin exists |
| SP1003-022 | Bi-directional TVS array; 22V VRWM, 36V VC @ 12A; 0.5pF per line, but only 12A rating | Designed for data-line protection (e.g., CC/SBU), not power-line duty; insufficient for 40A surge | Only suitable for low-current signal lines-not a direct replacement for TDS2211P's power-rail role |
Compared with SMAJ22A and SP1003-022, the TDS2211P uniquely delivers 40A surge handling with sub-28V clamping across –40°C to +125°C-making it the only viable choice for robust 22V power rail protection in thermally demanding USB PD and industrial applications.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch protection, and IoT 22V backup power systems requiring stable component supply, long-lifecycle support, and guaranteed RoHS/WEEE compliance.
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 TDS family was engineered specifically to replace conventional TVS diodes in high-reliability 22–36V power rail protection, delivering flat clamping, superior thermal stability, and FET-based surge diversion for next-generation USB, industrial, and storage systems.
FAQ
What is the maximum continuous operating voltage for the TDS2211P?
The TDS2211P has a reverse stand-off voltage (VRWM) of 22V, meaning it is rated for continuous DC operation up to 22V on the protected line. Exceeding this voltage risks increased leakage or premature triggering. This specification is confirmed in the Electrical Characteristics table of the official Semtech datasheet Rev 2.5, where VRWM is explicitly listed as 22V under test conditions between pins 4–6 and 1–3.
Does the TDS2211P require a thermal pad on the PCB?
No, the TDS2211P does not require a thermal pad. The datasheet explicitly states "no 'thermal pad' is needed" because surge energy is dissipated within the device structure rather than conducted through the package bottom. Instead, robust grounding via all three GND pins (1, 2, 3) and multiple vias to the ground plane is recommended to minimize parasitic inductance-critical for achieving the rated 40A peak pulse current performance.
How does the clamping voltage of the TDS2211P compare to standard TVS diodes at high temperature?
Unlike standard TVS diodes whose clamping voltage rises significantly with temperature (e.g., +10–15V increase at 125°C), the TDS2211P maintains 27.5–28V clamping across –40°C to +125°C. This stability is achieved via its FET-based architecture and is verified in Figure 4 of the datasheet, which shows flat clamping curves for TDS2211P versus steeply rising curves for conventional TVS at elevated temperatures.
Can the TDS2211P be used to protect USB-C SuperSpeed differential pairs?
No, the TDS2211P is not suitable for USB-C SuperSpeed (TX/RX) line protection. Its 175pF junction capacitance would severely degrade signal integrity at multi-Gbps data rates. The datasheet explicitly recommends low-capacitance TVS devices like RClamp3371ZC (<0.25pF) for those lines. The TDS2211P is intended solely for VBUS, CC, SBU, or other lower-speed, higher-voltage rails-never high-speed data paths.
What is the marking code printed on the TDS2211P package?
The top-side marking on the TDS2211P is "T22" followed by a two-digit date code (e.g., "T2223" for 2023). A laser-marked dot indicates Pin 1 location. This marking scheme is documented in the "Marking Code" section (page 9) of the official Semtech TDS2211P datasheet Rev 2.5 and matches the land pattern and orientation shown in Figure 6.
F30 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):
- 350mA
- Voltage - Forward (Vf) (Max) @ If:
- 5 V @ 100 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 250 nA @ 1500 V
- Capacitance @ Vr, F:
- 2.5pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -65°C ~ 175°C
F30 FAQ
1.How can I place an order for F30 through Aetrix?
Please submit a Request for Quotation (RFQ) for F30 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 F30 reliable?
The price and inventory of F30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for F30 is usually 5 days.
3.What payment methods are accepted for F30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for F30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for F30?
F30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your F30 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 F30?
For technical support, including F30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your F30 requirements.
6.How does Aetrix verify that F30 is sourced from the original manufacturer or authorized distributors?
All F30 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 F30 meets industry standards.
7.What is the process for return or replacement of F30?
All F30 units undergo pre-shipment inspection (PSI). If there is an issue with F30, 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 F30 part is unused and in its original packaging.
Return procedure for F30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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