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Semtech Corporation 1N5553C.TR
- Part No.:
- 1N5553C.TR
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
1N5553C.TR.pdf
- Description:
- DIODE GEN PURP 800V 5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,961
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Product details
Overview
1N5553C.TR from Semtech is a transient diverting suppressor (TDS) 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 ultra-low 20mΩ dynamic resistance - deployed in USB Type-C PD input protection and industrial load switch inputs.
For engineers reviewing the 1N5553C.TR datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for 22V bus protection in high-reliability embedded and USB-PD systems.
Technical Context
The 1N5553C.TR implements a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events - unlike conventional TVS diodes, it achieves near-constant clamping voltage across 0–40A and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
It operates with a 22V reverse stand-off voltage (VRWM), 25–27.9V breakdown (VBR), and 175pF junction capacitance at 22V/1MHz - enabling robust protection without signal integrity degradation on moderate-speed interfaces like USB PD VBUS and industrial power rails.
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 conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below absolute maximum ratings during surge events. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards without derating. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid signal distortion on USB PD VBUS and industrial 22V power monitoring lines. |
Pinout & Package
1N5553C.TR is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no internal thermal pad required - energy dissipated in silicon).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current - all three pins must be connected to maximize current sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input - connects directly to VBUS, load switch input, or industrial power rail; all three pins conduct surge current in parallel. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. current | 27.5–28V across full 0–40A range - eliminates need for over-specifying IPP to meet clamping targets. |
| Temperature-stable clamping | No increase in VC from −40°C to +125°C - removes thermal derating calculations required for standard TVS diodes. |
| Low dynamic resistance | 20mΩ - reduces IR drop during surge, enabling tighter voltage margin control for 22V system components. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive burst noise in industrial motor drives and PLCs. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the VBUS line of USB Type-C connectors supporting up to 20V PD, where controller ICs tolerate ≤28V absolute max. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and load switch or PD controller. Use Value: Maintains 27.5–28V clamping at 40A and −40°C to +125°C - prevents false trips and guarantees protection across full operating temperature range. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) exposed to lightning-induced surges on remote metering or robotics power rails. IC Role / Device Role / Timing Role: Primary EOS shunt device routing surge current away from sensitive gate drivers and internal FETs. Use Value: Limits clamping voltage below 28V even at 40A/125°C - avoids gate oxide damage and ensures long-term reliability of downstream switching elements. |
| IoT Device Power Rail Protection | Storage Device 22V Bus Protection |
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways subjected to ESD during field servicing and EFT in factory environments. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input before DC-DC conversion stage. Use Value: Delivers ±30kV ESD and ±4kV EFT immunity while occupying only 2.56mm² PCB area - critical for space-constrained edge nodes. |
Use Scenario: Protecting 22V backup power buses in enterprise SSDs and NVMe storage modules against hot-plug transients and board-level ESD. IC Role / Device Role / Timing Role: Low-capacitance (175pF), high-power shunt clamp on VCC supply rail. Use Value: Prevents data corruption or latch-up during transient events without degrading power rail stability or adding signal path capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking code T22 - confirmed pin-to-pin and functional replacement per Semtech ordering documentation. | Same use cases: USB PD, load switch, industrial 22V rails - no redesign or layout change required. | Select when traceability to original Semtech production lot or tape-and-reel packaging (3,000 pcs/reel) is required. |
| SMAJ22A | Standard unidirectional TVS diode; higher 38V clamping at 24A/125°C, fixed RDYN (~0.5Ω), 100pF capacitance - lacks constant-clamp architecture. | Suitable only for lower-temperature, lower-IPP applications where 28V clamping margin is unavailable; requires thermal derating above 85°C. | Choose only if cost sensitivity outweighs clamping stability and temperature performance - not recommended for USB PD or industrial 125°C operation. |
Compared with 1N5553C.TR, TDS2211P.C offers identical performance and drop-in compatibility, while SMAJ22A trades clamping consistency and temperature stability for lower unit cost - making 1N5553C.TR the optimal choice for mission-critical 22V bus protection where voltage margin and thermal robustness are non-negotiable.
Availability
1N5553C.TR is available at Aetrix Electronics and suitable for USB Type-C PD designs, industrial load switch inputs, and IoT 22V power rail protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for 1N5553C.TR 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 ICs for precision sensing, protection, and signal integrity.
The 1N5553C.TR belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding flat clamping and wide-temperature stability.
FAQ
What is the exact package type and dimensions of the 1N5553C.TR?
The 1N5553C.TR uses a DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with three GND pins (1–3) and three IN pins (4–6). It is Pb-free, RoHS-compliant, and features UL 94V-0 molding compound. No thermal pad is required beneath the die - energy is dissipated internally via the FET structure.
Does the 1N5553C.TR require external bias or control signals to operate?
No - the 1N5553C.TR is fully passive and self-triggering. Its internal precision trigger circuit activates the shunt FET automatically when input voltage exceeds ~25V (VBR). No enable pin, supply rail, or configuration is needed - it functions immediately upon connection to a 22V line.
How does the clamping voltage of the 1N5553C.TR compare to standard TVS diodes at elevated temperatures?
Unlike standard TVS diodes whose clamping voltage rises significantly with temperature (e.g., +10V drift from 25°C to 125°C), the 1N5553C.TR maintains 27.5–28V clamping across −40°C to +125°C due to its FET-based architecture and decreasing RDS(on) under surge - eliminating thermal derating calculations.
Can the 1N5553C.TR be used on bidirectional signal lines such as USB DP/DM?
No - the 1N5553C.TR is optimized for unidirectional 22V power line protection (e.g., VBUS, load switch input). For high-speed bidirectional data lines like USB DP/DM, Semtech recommends low-capacitance TVS devices such as RClamp3371ZC (<0.25pF), not the 1N5553C.TR.
Is the 1N5553C.TR compatible with automated SMT assembly processes?
Yes - the 1N5553C.TR's DFN-6 package is compatible with standard reflow profiles (J-STD-020 compliant), including lead-free soldering. Its 0.55mm height and defined land pattern support high-yield placement and solder joint reliability in volume manufacturing.
1N5553C.TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 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 @ 800 V
- Capacitance @ Vr, F:
- 92pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
1N5553C.TR FAQ
1.How can I place an order for 1N5553C.TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5553C.TR 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 1N5553C.TR reliable?
The price and inventory of 1N5553C.TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5553C.TR is usually 5 days.
3.What payment methods are accepted for 1N5553C.TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5553C.TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5553C.TR?
1N5553C.TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5553C.TR 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 1N5553C.TR?
For technical support, including 1N5553C.TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5553C.TR requirements.
6.How does Aetrix verify that 1N5553C.TR is sourced from the original manufacturer or authorized distributors?
All 1N5553C.TR 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 1N5553C.TR meets industry standards.
7.What is the process for return or replacement of 1N5553C.TR?
All 1N5553C.TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5553C.TR, 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 1N5553C.TR part is unused and in its original packaging.
Return procedure for 1N5553C.TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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