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Semtech Corporation SDHD5K
- Part No.:
- SDHD5K
- Manufacturer:
- Semtech Corporation
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
SDHD5K.pdf
- Description:
- DIODE ARRAY GEN PURP 5000V 600MA
- Quantity:
- Payment:
- Shipping:
Inventory:7,912
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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 its constant-clamp behavior across temperature and current, low 175pF junction capacitance at 22V, DFN 1.6×1.6mm 6-lead package, and FET-based shunt architecture enabling superior thermal stability versus conventional TVS diodes.
Technical Context
The TDS2211P implements a precision-triggered surge-rated FET as its primary protection element, activated by an internal reference circuit when transient voltage exceeds breakdown threshold. Its clamping voltage remains stable because RDS(on) collapses under surge, minimizing VC = VBR + IPP × RDYN dependency.
Unlike standard TVS diodes, TDS2211P delivers near-constant clamping (27.5–28V) from −40°C to +125°C and across 24–40A IPP, with dynamic resistance guaranteed at 20mΩ (8/20μs). It supports unsymmetrical line protection per IEC 61000-4-5 with ±1kV (1.2/50μs, RS=42Ω) 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 conduction. |
| Clamping Voltage | 27.5–28V at 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 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards for connector-facing protection. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for USB Type-C VBUS protection without signal integrity impact on DC power path. |
| Dynamic Resistance | 20mΩ (8/20μs, 1–40A range) - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Package | DFN 1.6mm × 1.6mm × 0.55mm, 6-lead - enables ultra-compact placement adjacent to USB-C connectors or load switch inputs. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground terminals - all three must be connected to PCB ground plane via low-inductance paths (multiple vias recommended) to sustain full 40A surge current capability. |
| 4, 5, 6 | IN | Protected line input - tied together to interface with single 22V bus (e.g., USB-C VBUS or load switch VIN); parallel connection maximizes current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Replaces traditional pn-junction TVS with low-RDS(on) MOSFET, enabling <0.1Ω effective conduction path and eliminating linear VC vs. IPP rise. |
| Temperature-stable clamping | Clamping voltage varies ≤0.5V from −40°C to +125°C at 40A - eliminates derating uncertainty in industrial or automotive under-hood environments. |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - sustains repeated 40A surges without parametric shift or failure, critical for remote metering and robotics. |
| Low leakage & capacitance | 600nA max reverse leakage at 22V and 175pF at 22V/1MHz - prevents power loss and avoids loading on 22V DC bus or load switch control paths. |
| Unsymmetrical line rating | ±1kV (1.2/50μs, RS=42Ω) compliance - validated for industrial power-line-coupled surges where ground reference is not symmetrical. |
Applications
| USB Type-C Power Delivery Bus Protection | Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBUS line of a USB-C port supporting up to 20V/5A PD negotiation against lightning-induced surges and hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping across temperature and current - keeps PD controller gate oxide and internal FETs within safe operating area where conventional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients in remote meters or factory automation nodes. IC Role / Device Role / Timing Role: Primary front-end surge clamp on VIN rail, upstream of OVP, UVLO, and current-limit circuitry. Use Value: Prevents latch-up or gate oxide rupture in the load switch's internal high-side FET by limiting transient overvoltage to ≤28V - enabling reliable operation in ungrounded or floating supply environments. |
| Industrial IoT Sensor Hub Power Input | Tablet/Notebook DC Power Rail Protection |
|
Use Scenario: Securing 22V auxiliary power input of edge AI sensor hubs subjected to EFT bursts (±4kV, 5/50ns) and indirect lightning surges in harsh factory settings. IC Role / Device Role / Timing Role: First-stage EOS protector on main DC input before PMIC and battery charging circuitry. Use Value: Delivers 40A surge current handling with 20mΩ dynamic resistance - dissipates energy in the FET channel rather than junction, avoiding thermal runaway during repetitive EFT exposure. |
Use Scenario: Hardening the 20V–22V adapter input rail of thin-and-light notebooks and tablets against accidental AC mains coupling and ESD from user ports. IC Role / Device Role / Timing Role: Compact, low-capacitance transient suppressor co-located with USB-C receptacle on system board edge. Use Value: 1.6×1.6mm DFN footprint saves >60% board area versus SOD-123 TVS solutions while maintaining 22V working voltage and ±30kV ESD robustness required for CE/FCC certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-020 | 20V working voltage, 30A IPP (8/20μs), 33V clamping at 30A, SOD-323 package (2.7×1.4mm) | Limited to ≤20V systems; higher clamping voltage reduces margin for 24V-rated downstream ICs. | Select only if system nominal voltage is ≤20V and board space allows larger SOD-323 footprint. |
| SM712 | 12V/24V dual-rail TVS, 35A IPP, 30V clamping at 35A, SOT-23 package | Fixed 12V/24V dual-biased structure - not optimized for single 22V rail; lacks temperature-stable clamping. | Use only for legacy designs requiring dual-rail protection; avoid where precise 22V clamping and thermal stability are required. |
Compared with SP1003-020 and SM712, TDS2211P offers 22V working voltage alignment, 40A surge capacity, and flat 27.5–28V clamping across temperature - making it uniquely suited for next-gen USB-C PD and industrial 22V power rail protection where margin and reliability are non-negotiable.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial IoT power inputs, and notebook/tablet DC rail protection requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
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 ICs for precision sensing, power management, and transient protection.
The TDS family was engineered specifically to replace conventional TVS diodes in high-reliability 12–36V power and interface rails, delivering stable clamping, superior surge endurance, and compact packaging for space-constrained industrial and consumer electronics.
FAQ
What is the maximum continuous operating voltage for 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 or conduction. This makes TDS2211P ideal for protecting 20V USB PD VBUS lines and 22V industrial power rails where sustained voltage stress is present.
How does TDS2211P achieve constant clamping voltage across temperature?
TDS2211P achieves constant clamping by using a surge-rated FET as the conduction element instead of a pn-junction diode. When triggered, the FET enters a low-RDS(on) state (<0.1Ω), causing clamping voltage to track the trigger circuit's breakdown voltage rather than rising with IPP or temperature - resulting in ≤0.5V variation from −40°C to +125°C at 40A.
Can TDS2211P replace a standard TVS diode in an existing 22V design?
Yes, TDS2211P can directly replace many 22V TVS diodes in board-level surge protection, but requires verification of pin compatibility (6-pin DFN vs. 2-pin SOD/SMA) and layout adaptation - especially grounding all three GND pins and tying all three IN pins together. Its lower clamping (27.5–28V vs. typical 35–40V) may allow relaxation of downstream voltage ratings.
What is the significance of 20mΩ dynamic resistance in TDS2211P?
The 20mΩ dynamic resistance (RDYN) of TDS2211P - measured between 1A and 40A under 8/20μs surge - reflects its ability to maintain minimal voltage rise during fast transients. This enables predictable, low-overshoot clamping essential for protecting sensitive 24V-rated controllers and load switches without overvoltage-induced failure.
Is TDS2211P suitable for protecting USB-C SuperSpeed data lines?
No, TDS2211P is not intended for USB-C SuperSpeed (TX/RX) differential pairs due to its 175pF junction capacitance - which would severely degrade signal integrity. It is designed exclusively for VBUS, CC, SBU, and power-related lines. For SuperSpeed lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF).
SDHD5K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 5000 V
- Current - Average Rectified (Io) (per Diode):
- 600mA
- Voltage - Forward (Vf) (Max) @ If:
- 7 V @ 250 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5000 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
SDHD5K FAQ
1.How can I place an order for SDHD5K through Aetrix?
Please submit a Request for Quotation (RFQ) for SDHD5K 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 SDHD5K reliable?
The price and inventory of SDHD5K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDHD5K is usually 5 days.
3.What payment methods are accepted for SDHD5K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDHD5K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDHD5K?
SDHD5K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDHD5K 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 SDHD5K?
For technical support, including SDHD5K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDHD5K requirements.
6.How does Aetrix verify that SDHD5K is sourced from the original manufacturer or authorized distributors?
All SDHD5K 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 SDHD5K meets industry standards.
7.What is the process for return or replacement of SDHD5K?
All SDHD5K units undergo pre-shipment inspection (PSI). If there is an issue with SDHD5K, 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 SDHD5K part is unused and in its original packaging.
Return procedure for SDHD5K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDHD5K Tags
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