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Semtech Corporation SCH15000
- Part No.:
- SCH15000
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
SCH15000.pdf
- Description:
- DIODE GEN PURP 5KV 500MA AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,658
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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 capability, 27.5–28V clamping voltage at 40A, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C PD input protection and industrial load switch front-end safeguarding.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and current, low dynamic resistance (20mΩ), junction capacitance (175pF @ 22V), and verified 22V working voltage compliance for robust bus-level surge resilience.
Technical Context
The TDS2211P uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown threshold - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its operation avoids the linear VC = VBR + IPP × RDYN behavior typical of conventional TVS diodes.
Clamping remains stable from −40°C to +125°C due to FET-based shunting with negligible RDS(on) variation; dynamic resistance is measured between 1A and 40A (8/20μs), and junction capacitance is specified at 175pF under 22V reverse bias and 1MHz test conditions.
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 waveform, RS = 2Ω) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (tp = 8/20μs) - supports compliance with IEC 61000-4-5 Level 4 industrial surge immunity requirements. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds standard ESD immunity requirements for consumer and industrial interfaces. |
| Dynamic Resistance | 20mΩ - enables low-voltage drop during high-current transients, minimizing energy dissipation in the device and improving thermal margin. |
| Junction Capacitance | 175pF @ VR = 22V, f = 1MHz - compatible with medium-speed data/power lines (e.g., USB PD VBUS, load switch inputs) without signal integrity degradation. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, tape-and-reel packaging (3,000 pcs/reel).
| 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 handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or power rail); parallel connection of all three pins ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. current | Clamping stays within 27.5–28V from 24A to 40A - eliminates design margin uncertainty caused by rising VC in traditional TVS devices. |
| Temperature-stable clamping | Clamping voltage deviation <0.5V across −40°C to +125°C - enables reliable protection in automotive and industrial ambient conditions. |
| FET-based shunt architecture | Surge-rated MOSFET with sub-0.1Ω RDS(on) replaces PN-junction avalanche - reduces thermal stress and improves longevity under repeated surges. |
| Low dynamic resistance | 20mΩ measured over 1–40A range - minimizes IR drop during surge, preserving voltage headroom for protected ICs. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V USB PD VBUS lines against lightning-induced surges and connector hot-plug ESD events in portable and docking station designs. IC Role / Device Role / Timing Role: Front-end transient suppressor placed adjacent to Type-C connector, clamping transients before they reach PD controller and buck/boost converters. Use Value: Maintains 27.5–28V clamping at full 40A surge while staying well below 30V damage threshold of common PD controllers (e.g., STUSB4500, CYPD3177). |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P, TPS22990) against EOS in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary surge diverter on VIN rail, preventing gate oxide damage and internal FET failure during 1.2/50μs + 8/20μs combo-wave surges. Use Value: Limits clamping to ≤28V across temperature - avoids exceeding 30V absolute max rating of load switch input stages, extending field reliability. |
| IoT Edge Device Power Bus Protection | Storage Device 22V Rail Protection |
Use Scenario: Securing 22V auxiliary rails in battery-powered IoT gateways and edge nodes exposed to electrostatic discharge during field servicing or environmental coupling. IC Role / Device Role / Timing Role: Single-point EOS guard on always-on power domain feeding MCU, PMIC, and wireless SoC subsystems. Use Value: Delivers ±30kV ESD immunity and 40A surge capacity in 1.6×1.6mm footprint - enables compact, ruggedized PCB layouts without sacrificing protection level. |
Use Scenario: Protecting 22V backup or auxiliary supply rails in NVMe SSD enclosures and enterprise storage controllers subjected to system-level surge testing. IC Role / Device Role / Timing Role: Transient suppression on non-data-critical power rail, complementing low-capacitance TVS on high-speed lanes. Use Value: 175pF junction capacitance avoids resonance or attenuation on 22V bias rails - unlike sub-10pF TVS, it balances ESD robustness and board-space efficiency. |
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; clamping rises to ~42V at 40A (8/20μs), higher dynamic resistance (~0.5Ω), no temperature compensation. | Limited to lower-temperature environments and lower-surge applications where clamping margin >14V is acceptable. | Select SMAJ22A only if cost sensitivity outweighs clamping precision and thermal stability requirements. |
| SP1003-220K | Bi-directional polymer ESD suppressor; rated for 30A (8/20μs), but clamping undefined above 10A; 12V working voltage max. | Not suitable for 22V bus protection; intended for low-voltage data lines (e.g., USB 2.0, I²C) with <15V operating range. | Reject SP1003-220K for 22V applications - violates VRWM rating and lacks guaranteed clamping at rated current. |
Compared with SMAJ22A and SP1003-220K, the TDS2211P delivers superior clamping consistency (27.5–28V vs. >40V), wider temperature stability (−40°C to +125°C), and validated 22V working voltage compliance - making it the only option qualified for industrial 22V bus protection where voltage margin and thermal derating are critical.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT edge device power buses requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
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 solutions.
The TDS2211P belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection with FET-based clamping stability and temperature-invariant performance.
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 it suitable for protecting 22V power rails such as USB PD VBUS, industrial auxiliary supplies, and load switch inputs where nominal voltage reaches 20–22V.
How does TDS2211P achieve constant clamping voltage across varying surge currents?
The TDS2211P uses a surge-rated FET activated by a precision trigger circuit. When an EOS event occurs, the FET turns on with extremely low RDS(on), causing clamping voltage to approximate the trigger circuit's breakdown voltage rather than follow VC = VBR + IPP × RDYN. As a result, TDS2211P maintains 27.5–28V clamping from 24A to 40A - confirmed in Figure 3 of the datasheet.
Can TDS2211P replace standard TVS diodes in existing 22V designs without layout changes?
No - TDS2211P requires all six pins to be connected: pins 1–3 to solid ground plane (with multiple vias recommended), and pins 4–6 to the protected line via short, low-inductance traces. Unlike 2-pin TVS devices, its 6-pin DFN demands dedicated land pattern and routing per Figure 7; direct substitution without layout revision compromises surge performance.
What is the junction capacitance of TDS2211P and how does it affect signal integrity?
The TDS2211P exhibits 175pF junction capacitance at VR = 22V and f = 1MHz. This value is appropriate for power-line and medium-speed control-line protection (e.g., VBUS, enable signals, load switch inputs), but not for high-speed differential pairs like USB 3.x or PCIe - where sub-0.3pF devices (e.g., RClamp3371ZC) are required alongside TDS2211P in full-system protection schemes.
Is TDS2211P compliant with industrial surge immunity standards?
Yes - the TDS2211P meets IEC 61000-4-5 Level 4 requirements with 40A (8/20μs) peak pulse current capability and ±1kV (1.2/50μs, RS = 42Ω) unsymmetrical line rating. Its stable clamping and wide temperature range (−40°C to +125°C) make it suitable for industrial equipment, remote meters, and factory automation systems undergoing formal EMC certification.
SCH15000 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):
- 5000 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 5 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -55°C ~ 150°C
SCH15000 FAQ
1.How can I place an order for SCH15000 through Aetrix?
Please submit a Request for Quotation (RFQ) for SCH15000 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 SCH15000 reliable?
The price and inventory of SCH15000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SCH15000 is usually 5 days.
3.What payment methods are accepted for SCH15000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SCH15000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SCH15000?
SCH15000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SCH15000 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 SCH15000?
For technical support, including SCH15000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SCH15000 requirements.
6.How does Aetrix verify that SCH15000 is sourced from the original manufacturer or authorized distributors?
All SCH15000 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 SCH15000 meets industry standards.
7.What is the process for return or replacement of SCH15000?
All SCH15000 units undergo pre-shipment inspection (PSI). If there is an issue with SCH15000, 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 SCH15000 part is unused and in its original packaging.
Return procedure for SCH15000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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