My Inquiry
My Account
Semtech Corporation SDC36C.TCT
- Part No.:
- SDC36C.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SDC36C.TCT.pdf
- Description:
- TVS DIODE 33VWM 47VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,763
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SDC36C.TCT from Semtech is a transient diverting suppressor designed for high-energy EOS/ESD protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial I/O interfaces where stable clamping under temperature and current stress is critical.
For engineers reviewing the SDC36C.TCT datasheet, pinout, applications, or equivalent options, this device offers a FET-based shunt architecture with near-constant clamping across –40°C to +125°C and 1–40A surge currents-enabling robust protection design without thermal derating or over-spec'ing IPP.
Technical Context
The SDC36C.TCT uses a precision-triggered surge-rated MOSFET as its primary protection element, activated by an internal reference circuit when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains stable because the FET's RDS(on) collapses under surge, minimizing VC = VBR + IPP × RDYN dependency.
It operates in a symmetrical 6-pin DFN (1.6 × 1.6 × 0.55 mm) with three dedicated IN pins (4–6) and three GND pins (1–3), requiring all six terminals to be connected for full 40A rating and minimal parasitic inductance. Its 175pF junction capacitance at 22V enables use on moderate-speed power/data lines without signal integrity compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - Matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - Remains stable across temperature and current, enabling predictable downstream IC protection. |
| Peak Pulse Current | 40 A (8/20μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD endpoints. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds automotive and industrial ESD requirements without external staging. |
| Dynamic Resistance | 20 mΩ - Enables low-voltage overshoot during fast transients, reducing stress on protected FETs and controllers. |
| Junction Capacitance | 175 pF at 22 V, 1 MHz - Compatible with USB Type-C VBUS and load switch enable lines; avoids signal distortion on <100 MHz paths. |
Pinout & Package
SDC36C.TCT is housed in a Pb-free, RoHS-compliant 6-lead DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with UL 94V-0 molding compound. All six terminals must be soldered: three IN pins share the protected line path, and three GND pins provide low-inductance return to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected to minimize ground loop inductance during 40A surges. |
| 4, 5, 6 | IN | Protected input node; tied together externally to VBUS or load switch input; enables parallel current sharing and reduced trace impedance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Replaces traditional TVS with active clamping-clamping voltage stays flat across 1–40A and –40°C to +125°C. |
| Triple-terminal input & ground | Enables distributed current handling and lower effective package inductance vs. single-pin alternatives. |
| Low dynamic resistance (20 mΩ) | Reduces voltage overshoot during sub-100ns ESD events, protecting sensitive gate oxides in load switches and PD controllers. |
| 175 pF junction capacitance | Permits placement directly on VBUS lines without degrading USB PD communication or causing startup instability. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between connector and PD controller/load switch, clamping transients before they reach silicon. Use Value: Maintains 27.5–28V clamping at full 40A and 125°C-prevents overvoltage damage to USB PD controllers that typically tolerate only ≤30V absolute max. |
Use Scenario: Safeguarding the input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT hubs operating from 24V rails. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET drain, preventing avalanche failure. Use Value: Low 20mΩ RDYN ensures <0.8V additional overshoot at 40A, keeping total clamped voltage well below typical 30–40V FET VDSS ratings. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing always-on 22V backup or auxiliary power rails in battery-backed edge sensors and wireless gateways subject to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone transient suppressor on main power entry point, coordinated with upstream fusing and downstream LDOs. Use Value: ±30kV ESD rating eliminates need for secondary ESD stages; 175pF capacitance avoids interaction with 10–100μF bulk capacitors on same rail. |
Use Scenario: Protecting 22V NVMe or SSD backup power inputs against surges during hot-swap or power-loss recovery sequences. IC Role / Device Role / Timing Role: Fast-acting clamp on storage controller VCC_AUX line, ensuring clean power-up after transient events. Use Value: Stable clamping prevents false resets or latch-up in flash memory controllers during 1.2/50μs surge events per IEC 61000-4-5. |
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 pinout and marking (T22); differs only in reel packaging (3,000 pcs vs. SDC36C.TCT's unspecified quantity). | Same USB PD, load switch, and industrial I/O use cases; validated in Semtech reference designs for Type-C protection. | Select TDS2211P.C when standard tape-and-reel logistics are required; SDC36C.TCT may reflect alternate distribution channel or custom labeling. |
| uClamp2411ZA | 24V working voltage, lower 20A IPP rating, higher 33V clamping at 20A, and smaller 0.65 × 0.65 mm DFN-2 package-no triple-terminal layout. | Suitable for CC/SBU lines in USB-C, not VBUS; lacks current-sharing capability for high-energy surges. | Choose uClamp2411ZA only for low-capacitance, space-constrained auxiliary lines-not as a direct replacement for SDC36C.TCT on 22V power rails. |
Compared with TDS2211P.C, SDC36C.TCT is functionally identical and interchangeable; compared with uClamp2411ZA, it delivers 2× peak current capacity, 5V lower clamping, and distributed terminal architecture essential for robust 22V bus protection.
Availability
SDC36C.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device 22V power rails requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for SDC36C.TCT 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 SDC36C.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications where clamping stability over temperature and current is non-negotiable.
FAQ
What is the maximum operating temperature range for SDC36C.TCT?
The SDC36C.TCT is rated for continuous operation from –40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range due to the FET-based architecture-unlike standard TVS diodes whose VC rises with temperature. This makes SDC36C.TCT especially suitable for under-hood automotive modules and industrial enclosures without thermal derating.
Does SDC36C.TCT require external bias or control signals to operate?
No, the SDC36C.TCT is fully passive and self-triggering. It contains an integrated precision trigger circuit and surge-rated FET-no external voltage, clock, or enable signal is needed. The device activates automatically when transient voltage exceeds its 25–27.9V breakdown threshold, making SDC36C.TCT ideal for "set-and-forget" protection in safety-critical power rails.
Can SDC36C.TCT be used on USB Type-C superspeed differential pairs (TX/RX)?
No, SDC36C.TCT is not suitable for USB SuperSpeed lanes. Its 175pF junction capacitance would severely degrade signal integrity above ~100 MHz. For TX+/TX–, RX+/RX–, and DP/DM lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF). SDC36C.TCT is intended exclusively for VBUS, CC, SBU, and load switch power inputs.
How does SDC36C.TCT compare to standard TVS diodes in clamping performance?
Standard TVS diodes exhibit linear VC rise with increasing IPP due to fixed dynamic resistance (VC = VBR + IPP × RDYN). In contrast, SDC36C.TCT maintains ~27.5–28V clamping from 1A to 40A and across –40°C to +125°C because its FET's RDS(on) collapses under surge-delivering consistent protection margins without overdesign.
Is SDC36C.TCT RoHS and REACH compliant?
Yes, SDC36C.TCT is Pb-free, halogen-free, and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Its molding compound meets UL 94V-0 flammability rating, and lead finish is lead-free per J-STD-609. Full compliance documentation is available upon request for SDC36C.TCT.
SDC36C.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33V (Max)
- Voltage - Breakdown (Min):
- 35V
- Voltage - Clamping (Max) @ Ipp:
- 47V
- Current - Peak Pulse (10/1000µs):
- 4A (1.2/50µs)
- Power - Peak Pulse:
- 225W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 100pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
SDC36C.TCT FAQ
1.How can I place an order for SDC36C.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for SDC36C.TCT 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 SDC36C.TCT reliable?
The price and inventory of SDC36C.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDC36C.TCT is usually 5 days.
3.What payment methods are accepted for SDC36C.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDC36C.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDC36C.TCT?
SDC36C.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDC36C.TCT 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 SDC36C.TCT?
For technical support, including SDC36C.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDC36C.TCT requirements.
6.How does Aetrix verify that SDC36C.TCT is sourced from the original manufacturer or authorized distributors?
All SDC36C.TCT 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 SDC36C.TCT meets industry standards.
7.What is the process for return or replacement of SDC36C.TCT?
All SDC36C.TCT units undergo pre-shipment inspection (PSI). If there is an issue with SDC36C.TCT, 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 SDC36C.TCT part is unused and in its original packaging.
Return procedure for SDC36C.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDC36C.TCT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
