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Semtech Corporation SET111403
- Part No.:
- SET111403
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
SET111403.pdf
- Description:
- DIODE GEN PURP 1KV 45A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:7,871
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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 peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance - deployed in USB Type-C PD bus protection and load switch input safeguarding.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance for flat VC response, DFN-6 package layout constraints, and compatibility with 22V working voltage systems requiring industrial surge compliance (±1kV, 1.2/50μs).
Technical Context
The TDS2211P uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and drives the shunt FET into low-RDS(on) conduction. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing FET on-resistance under surge.
It operates across –40°C to +125°C with stable junction capacitance (175pF @ 22V, 1MHz) and reverse leakage (<600nA @ 22V), and is rated for 1120W peak pulse power. The device protects one line with symmetrical bidirectional capability and requires all six pins connected - three IN and three GND - for full 40A rating.
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 @ 40A (8/20μs + 1.2/50μs combo wave, RS=2Ω) - ensures downstream 24V-rated 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 surge immunity for industrial equipment and USB PD interfaces. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Class 4 ESD requirements for handheld and connector-facing applications. |
| Dynamic Resistance | 20mΩ - enables flat clamping behavior; reduces VC rise vs. current compared to TVS diodes (ΔVC < 0.5V from 24A to 40A). |
| Junction Capacitance | 175pF @ 22V, 1MHz - suitable for DC/low-speed power and control lines; not intended for >100MHz signal paths. |
| Package | DFN-6 (1.6 × 1.6 × 0.55 mm) - enables compact placement near connectors; requires all GND and IN pins tied in parallel for rated performance. |
Pinout & Package
Package: DFN-6, 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Exposed thermal pad not required; energy dissipation occurs within silicon FET structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected with low-inductance routing to maximize 40A capability. |
| 4, 5, 6 | IN | Protected line input (bidirectional); connects to VBus, USB PD power rail, or load switch input; all three pins in parallel reduce trace inductance and distribute current. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across full 24–40A surge range - eliminates need for overrating IPP to meet VC limits. |
| Temperature-stable clamping | VC remains 27.5–28V from –40°C to +125°C - enables reliable protection in automotive under-hood or industrial ambient conditions. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - minimizes IR drop during surge, preserving voltage margin for downstream components. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated surges per IEC 61000-4-5 without parameter shift or failure. |
| Integrated trigger + drive circuit | Eliminates external bias or timing components; activates shunt FET within nanoseconds of overvoltage detection. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V USB PD power bus against lightning-induced surges and connector ESD during hot-plug events. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between VBus and GND, upstream of PD controller and load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to 24V-tolerant PD controllers without derating. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) exposed to 42Ω-coupled ±1kV surges in remote meters or robotics. IC Role / Device Role / Timing Role: Front-end transient diverter that clamps before internal FET breakdown, extending switch lifetime and reliability. Use Value: Limits voltage stress on load switch drain-source junction to <28V - avoids avalanche failure and gate oxide degradation during repeated surges. |
| Notebook/Tablet DC Power Rail Protection | IoT Device Battery Charging Interface Protection |
|
Use Scenario: Securing 19–22V DC input rails in portable computing devices against ESD and conducted transients from AC adapters. IC Role / Device Role / Timing Role: Standalone overvoltage protector on main system power input, co-located with connector. Use Value: 175pF capacitance and 22V working voltage allow integration without affecting power-up sequencing or ripple performance. |
Use Scenario: Shielding battery charging circuits (e.g., USB-C to Li-ion chargers) in smart sensors and edge nodes from field-induced surges. IC Role / Device Role / Timing Role: Low-leakage (≤600nA) protector enabling always-on operation without battery drain impact. Use Value: –40°C to +125°C operation supports deployment in uncontrolled environments (e.g., outdoor gateways, factory floors). |
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; 35.1V min VBR, 36.5V max VC @ 24.7A; higher dynamic resistance (~0.5Ω); VC rises with temperature and current. | Limited to lower-energy surges; unsuitable where flat clamping or high-temp stability is required (e.g., USB PD at 85°C ambient). | Select SMAJ22A only for cost-sensitive, non-critical 22V lines with <20A surge exposure and room-temperature operation. |
| TPD2E007DRYR | Low-capacitance (1.5pF) dual-channel ESD protector; 22V VRWM; rated for 4A (8/20μs); no high-energy surge capability. | Designed for data-line ESD only (e.g., USB 2.0 D+/D–); cannot handle 40A surges or ±1kV IEC 61000-4-5 events. | Use TPD2E007DRYR for signal-line ESD; pair with TDS2211P for complete USB-C solution - power rail + data line protection. |
Compared with SMAJ22A and TPD2E007DRYR, the TDS2211P uniquely delivers 40A surge handling with temperature-invariant clamping - making it the sole option among the three for robust 22V bus protection in industrial and USB PD systems.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and notebook DC power rails requiring stable component supply, long-term lifecycle support, and 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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The TDS series was developed to replace conventional TVS diodes in high-reliability 22V–36V power rail protection, addressing clamping instability and thermal derating limitations in industrial and USB-C applications.
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 withstand up to 22V DC or RMS on its protected line without significant leakage or degradation. This makes it suitable for nominal 20V USB PD buses and 22V industrial power rails. Operation above 22V risks premature triggering or accelerated wear. The TDS2211P is not rated for sustained overvoltage beyond this limit.
How does the TDS2211P achieve stable clamping voltage across temperature?
The TDS2211P achieves stable clamping via a precision trigger circuit and low-RDS(on) shunt FET architecture - unlike TVS diodes whose VC rises with temperature due to fixed dynamic resistance. Its clamping voltage remains 27.5–28V from –40°C to +125°C because the FET's on-resistance decreases as temperature increases, counteracting thermal drift. This behavior is confirmed in Figure 3 and Table 2 of the TDS2211P datasheet.
Can the TDS2211P be used for bidirectional signal line protection?
No - the TDS2211P is designed exclusively for unidirectional DC power or I/O line protection (IN-to-GND). It lacks symmetrical breakdown characteristics for AC or bidirectional data lines like USB 2.0 D+/D– or RS-485. For such applications, low-capacitance ESD arrays (e.g., RClamp3371ZC) must be used alongside the TDS2211P in a layered protection scheme, as shown in Figure 4 of the TDS2211P datasheet.
Why are all six pins of the TDS2211P required for full 40A rating?
All three IN pins (4, 5, 6) and all three GND pins (1, 2, 3) must be connected in parallel to achieve the full 40A peak pulse current rating. This configuration minimizes parasitic inductance and distributes surge current evenly across bond wires and internal metallization. Omitting any pin reduces effective current-handling capability and may cause localized heating or premature failure during high-energy transients.
Is the TDS2211P compatible with automated optical inspection (AOI) after reflow?
Yes - the TDS2211P's DFN-6 package features laser-marked "T22" identification and a visible pin-1 dot indicator, both compliant with IPC-A-610 Class 2/3 AOI requirements. Its 1.6 mm × 1.6 mm footprint and coplanar leads support standard solder paste stencil design and post-reflow inspection. No special AOI setup is needed beyond standard DFN-6 parameters.
SET111403 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 45A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 9 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Solder
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -55°C ~ 150°C
SET111403 FAQ
1.How can I place an order for SET111403 through Aetrix?
Please submit a Request for Quotation (RFQ) for SET111403 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 SET111403 reliable?
The price and inventory of SET111403 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SET111403 is usually 5 days.
3.What payment methods are accepted for SET111403?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SET111403 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SET111403?
SET111403 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SET111403 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 SET111403?
For technical support, including SET111403 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SET111403 requirements.
6.How does Aetrix verify that SET111403 is sourced from the original manufacturer or authorized distributors?
All SET111403 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 SET111403 meets industry standards.
7.What is the process for return or replacement of SET111403?
All SET111403 units undergo pre-shipment inspection (PSI). If there is an issue with SET111403, 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 SET111403 part is unused and in its original packaging.
Return procedure for SET111403:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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