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Semtech Corporation 1N5552
- Part No.:
- 1N5552
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
1N5552.pdf
- Description:
- DIODE GEN PURP 600V 5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,183
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Product details
Overview
TDS2211P from Semtech is a transient diverting suppressor designed for high-energy EOS protection on 22V voltage buses or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, and stable 27.5–28V clamping across temperature and current range; it protects USB Type-C power delivery lines, load switch inputs, and industrial I/O interfaces.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, DFN-6 thermal and layout performance, 175pF junction capacitance at 22V, and compatibility with 22V working voltage systems requiring robust EOS resilience without TVS-like voltage drift.
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 - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its dynamic resistance is 20mΩ (8/20μs), far lower than conventional TVS diodes.
Unlike standard TVS devices whose clamping voltage rises linearly with IPP (VC = VBR + IPP × RDYN), the TDS2211P maintains ~27.5–28V clamping from 24A to 40A and across –40°C to +125°C due to decreasing RDS(on) under surge. It is rated for ±1kV (1.2/50μs, RS = 42Ω) unsymmetrical line surges and meets IEC 61000-4-4 (±4kV EFT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22V - maximum continuous DC operating voltage before leakage exceeds 600nA; defines safe bus voltage ceiling for USB PD and industrial 22V rails. |
| Clamping Voltage (VC) | 27.5–28V at 40A (8/20μs) - ensures protected ICs (e.g., USB PD controllers) remain below damage threshold even during worst-case surge events. |
| Peak Pulse Current (IPP) | 40A (8/20μs) - supports compliance with IEC 61000-4-5 Level 4 industrial surge immunity requirements on single-line protection. |
| Junction Capacitance (CJ) | 175pF at 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact; not suitable for high-speed data lines. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards, enabling use in exposed connector interfaces. |
| Dynamic Resistance (RDYN) | 20mΩ (8/20μs) - enables flat clamping behavior; reduces voltage overshoot compared to TVS diodes with fixed RDYN >1Ω. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground terminals - all three must be connected to minimize parasitic inductance and maximize 40A surge current path to PCB ground plane. |
| 4, 5, 6 | IN | Protected line input - tied together to the 22V bus or power rail; simultaneous connection ensures balanced current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage remains stable at ~27.5–28V from 24A to 40A and –40°C to +125°C - eliminates derating uncertainty in thermal or high-current designs. |
| FET-based shunt protection | Surge-rated MOSFET replaces PN-junction TVS - achieves 20mΩ dynamic resistance and avoids junction heating limitations of traditional TVS devices. |
| High-energy EOS resilience | 1120W peak pulse power (8/20μs) - sustains 40A surges without degradation, supporting long-life deployment in industrial equipment and IoT gateways. |
| Low-leakage standby | 600nA max reverse leakage at 22V - minimizes quiescent power loss in always-on 22V systems such as remote meters and battery-backed controllers. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C connectors supporting up to 20V/100W PD, where transient overvoltage can damage PD controllers or e-fuses. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector entry point, clamping surges before they reach downstream PD controller ICs. Use Value: Maintains 27.5–28V clamping across temperature and current - avoids over-clamp failures common with TVS diodes at elevated ambient temperatures. |
Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) against lightning-induced surges in remote metering, robotics, and factory automation. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage stress on the load switch's internal FET gate oxide and drain-source junction. Use Value: Prevents latch-up or permanent failure of the load switch by holding clamping voltage below its absolute maximum rating (typically ≤30V). |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT edge nodes exposed to ESD during field servicing or environmental transients. IC Role / Device Role / Timing Role: Single-device solution for EOS suppression on non-data power lines, replacing multi-component TVS+RC networks. Use Value: 1.6mm × 1.6mm footprint saves >60% board area vs. discrete TVS + series resistor solutions while delivering superior clamping consistency. |
Use Scenario: Protecting 22V backup supplies in enterprise SSDs or NVMe storage modules against power-rail surges during hot-plug or system reset events. IC Role / Device Role / Timing Role: Standby-mode protector on the 22V VCC_BKUP rail, ensuring sustained reliability during extended retention periods. Use Value: 130–600nA leakage at 22V prevents measurable battery drain over multi-year operation in mission-critical storage applications. |
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 clamping at 12.3A (8/20μs); higher RDYN (~0.8Ω); clamping rises with temperature and current. | Lower surge rating (12.3A vs. 40A); suitable only for light-duty ESD, not industrial-level EOS. | Select SMAJ22A only for cost-sensitive, low-energy applications where clamping voltage drift is acceptable and peak current <15A. |
| TPD2E001DRYR | 2-channel, 5.5V-rated ESD protector; 0.25pF per line; ±12kV contact ESD; no 22V capability or 40A surge rating. | Designed for high-speed data lines (USB 2.0, HDMI), not power rails; incompatible with 22V working voltage. | Use TPD2E001DRYR only for DP/DM or CC/SBU line protection alongside TDS2211P - never as a replacement for 22V bus protection. |
Compared with SMAJ22A and TPD2E001DRYR, the TDS2211P uniquely delivers 40A surge handling with thermally stable 27.5–28V clamping at 22V working voltage - making it the only viable option for industrial USB PD, load switch, and 22V backup rail protection where TVS voltage drift and energy limits are unacceptable.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and 22V backup power rails requiring stable component supply, long-term lifecycle support, and verified EOS resilience.
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 semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The TDS product line targets high-reliability EOS protection in power delivery, industrial connectivity, and ruggedized IoT systems - addressing the limitations of conventional TVS diodes through FET-based clamping architecture.
FAQ
What is the maximum continuous operating voltage for TDS2211P?
The TDS2211P has a reverse stand-off voltage (VRWM) of 22V, meaning it can safely operate continuously at up to 22V DC without exceeding 600nA leakage current. This makes it suitable for USB PD 20V systems with margin, 22V industrial rails, and backup power supplies where sustained voltage stability is critical. The TDS2211P is not rated for voltages above 22V in normal operation.
How does TDS2211P differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage increases linearly with peak pulse current (VC = VBR + IPP × RDYN), the TDS2211P uses a surge-rated FET to maintain nearly constant clamping - 27.5–28V from 24A to 40A and across –40°C to +125°C. This eliminates thermal derating uncertainty and ensures predictable protection margins in real-world conditions. The TDS2211P achieves this via sub-20mΩ dynamic resistance.
Can TDS2211P be used on high-speed data lines like USB 3.x or PCIe?
No, the TDS2211P is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V would severely degrade signal integrity on differential pairs operating above 100MHz. It is designed exclusively for 22V power rails and low-frequency I/O lines. For USB 3.x or PCIe, low-capacitance TVS devices like RClamp3371ZC (<0.25pF) must be used instead - the TDS2211P complements them in multi-layer protection schemes.
What is the recommended PCB layout for optimal surge performance of TDS2211P?
For optimal surge performance, place the TDS2211P as close as possible to the protected connector. Connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Avoid stubs or splits in the ground path - parasitic inductance must be minimized to preserve 40A capability. No thermal pad is required; energy is dissipated in the FET channel, not the junction.
Is TDS2211P compatible with automated SMT assembly processes?
Yes, the TDS2211P uses a standard DFN-6 package (1.6mm × 1.6mm × 0.55mm) with JEDEC-compliant land pattern and lead-free finish, fully compatible with reflow soldering per IPC/JEDEC J-STD-020. Its marking code "T22" and pin-1 dot support automated optical inspection (AOI). Tape-and-reel packaging (3,000 units per 7-inch reel) is optimized for pick-and-place machines. The device meets RoHS and halogen-free requirements.
1N5552 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):
- 600 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 92pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
1N5552 FAQ
1.How can I place an order for 1N5552 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5552 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 1N5552 reliable?
The price and inventory of 1N5552 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5552 is usually 5 days.
3.What payment methods are accepted for 1N5552?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5552 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5552?
1N5552 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5552 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 1N5552?
For technical support, including 1N5552 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5552 requirements.
6.How does Aetrix verify that 1N5552 is sourced from the original manufacturer or authorized distributors?
All 1N5552 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 1N5552 meets industry standards.
7.What is the process for return or replacement of 1N5552?
All 1N5552 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5552, 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 1N5552 part is unused and in its original packaging.
Return procedure for 1N5552:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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