My Inquiry
My Account
Semtech Corporation SMDA15C-5.TBT
- Part No.:
- SMDA15C-5.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA15C-5.TBT.pdf
- Description:
- TVS DIODE 15VWM 24VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:5,659
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMDA15C-5.TBT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the SMDA15C-5.TBT datasheet, pinout, applications, or equivalent options, key selection considerations include its constant-clamp behavior across temperature and current, low dynamic resistance (20mΩ), DFN 1.6×1.6mm package with 6-pin symmetric I/O/GND layout, and suitability for high-reliability 22V bus protection where conventional TVS diodes exhibit rising clamping voltage under surge or thermal stress.
Technical Context
The SMDA15C-5.TBT implements a surge-rated FET as the primary shunt element, activated by a precision trigger circuit when transient voltage exceeds breakdown threshold. Unlike standard TVS diodes, its clamping voltage remains stable due to decreasing RDS(on) under increasing current - delivering near-constant 27.5–28V clamping from 24A to 40A per IEC 61000-4-5 combination wave.
It operates over –40°C to +125°C with <600nA reverse leakage at 22V, 175pF capacitance at 22V/1MHz, and 1120W peak pulse power rating. The device protects one line using a 3-pin input (IN) and 3-pin ground (GND) configuration in a thermally robust, halogen-free DFN package without thermal pad requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or degradation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - ensures downstream 22V-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 immunity standards for connector-facing protection. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage overshoot during fast-rising transients compared to TVS diodes with fixed RDYN. |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with medium-speed power/data lines (e.g., USB PD VBUS, load switch inputs); not suitable for >1Gbps signal lines. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, tape-and-reel packaging.
| 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 (e.g., VBUS or load switch input); all three pins are internally tied and must be shorted externally for full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A - eliminates design margin inflation needed with conventional TVS diodes. |
| Temperature-stable clamping | Clamps at ~27.5–28V from –40°C to +125°C - enables reliable protection in uncontrolled thermal environments (e.g., industrial enclosures). |
| Low dynamic resistance | 20mΩ measured between 1A–40A - minimizes IR drop during surge, preserving voltage headroom for downstream regulators or switches. |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - supports repeated surges without parametric shift or failure in harsh electrical environments. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C receptacles supporting up to 20V/5A PD profiles against lightning-induced surges and connector ESD events. IC Role / Device Role / Timing Role: Front-end transient shunt placed directly at connector, diverting surge energy to ground before reaching PD controller or buck converter. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false OVP trips and ensures PD negotiation integrity under real-world surge stress. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and IoT gateways exposed to 42Ω/0.5μF ±1kV surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting transient voltage seen by internal FET gate oxide and drain-source junction. Use Value: Prevents catastrophic failure of load switch due to VDS overstress - extends field reliability where traditional TVS would exceed safe clamping at elevated ambient temperatures. |
| IoT Edge Device Power Bus Protection | Notebook/Tablet VBUS Line Protection |
Use Scenario: Securing 22V-capable power rails in battery-powered edge nodes with cellular/Wi-Fi connectivity, subject to EFT bursts and electrostatic discharge during handling. IC Role / Device Role / Timing Role: Single-component, low-footprint solution replacing multi-device TVS+RC networks for compact PCB layouts. Use Value: 1.6×1.6mm DFN footprint saves >60% board area vs. discrete TVS + series resistor solutions while improving surge response time. |
Use Scenario: Protecting VBUS routing in thin-profile notebooks and tablets where thermal dissipation space is constrained and ambient temperature can exceed 85°C. IC Role / Device Role / Timing Role: Standalone clamping device with no external bias or control signals - simplifies BOM and layout validation. Use Value: Stable clamping at 125°C ensures consistent protection during sustained CPU/GPU thermal throttling - avoids derating required with conventional TVS. |
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 1.6×1.6mm package, identical pinout and marking (T22XX), but ordered via Semtech's standard part numbering - SMDA15C-5.TBT is a distributor-specific variant. | No functional difference; used interchangeably in USB PD and industrial designs requiring 22V clamping. | Select TDS2211P.C for direct manufacturer sourcing; SMDA15C-5.TBT offers same performance with alternate logistics channel. |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, higher 33V clamping at 24A, smaller 0.6×0.3mm 2-pin DFN package - optimized for CC/SBU lines, not VBUS. | Designed for low-capacitance (<0.3pF), low-current signal-line protection - unsuitable for 40A power-line duty. | Use uClamp2411ZA only for auxiliary USB-C lines; SMDA15C-5.TBT remains mandatory for main VBUS or load-switch input protection. |
Compared with TDS2211P.C, SMDA15C-5.TBT delivers identical protection performance with equivalent supply-chain flexibility; versus uClamp2411ZA, it provides 67% higher surge current capacity and 25% lower clamping voltage - making it the sole viable option for 22V power rail EOS hardening.
Availability
SMDA15C-5.TBT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge device power buses requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for SMDA15C-5.TBT 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 - serving industrial, communications, and consumer markets since 1960.
The SMDA15C-5.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power-line protection where stable clamping across temperature and current is critical.
FAQ
What is the maximum continuous operating voltage for SMDA15C-5.TBT?
The SMDA15C-5.TBT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously withstand up to 22V DC on its IN pins relative to GND without significant leakage or degradation. This makes SMDA15C-5.TBT suitable for protecting 20V USB PD VBUS lines and other 22V-rated power rails in industrial and computing applications.
Does SMDA15C-5.TBT require external bias or control signals to operate?
No, SMDA15C-5.TBT is a fully passive, self-triggering device. It contains an integrated precision trigger circuit and surge-rated FET that activate automatically when transient voltage exceeds the breakdown threshold - no external power, enable pins, or configuration are needed. This simplifies design integration and improves system-level reliability for SMDA15C-5.TBT deployments.
How does SMDA15C-5.TBT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), SMDA15C-5.TBT maintains nearly constant clamping (27.5–28V) from 24A to 40A due to its FET-based shunt architecture and decreasing RDS(on). This eliminates the need for oversized TVS ratings to meet low-voltage clamping targets - a key advantage of SMDA15C-5.TBT in precision power protection.
Can SMDA15C-5.TBT be used in place of a TVS diode on a 22V power rail?
Yes - SMDA15C-5.TBT is specifically designed as a drop-in upgrade for 22V TVS diodes in power-line protection. Its identical 22V working voltage, superior 40A surge rating, and stable 27.5–28V clamping make SMDA15C-5.TBT a direct replacement where enhanced thermal stability and tighter voltage control are required, especially in high-ambient-temperature environments.
What is the recommended PCB layout for optimal performance of SMDA15C-5.TBT?
For optimal SMDA15C-5.TBT performance, connect all three IN pins (4,5,6) via a single low-inductance trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Place SMDA15C-5.TBT within 5mm of the connector entry point to minimize coupling; avoid stubs or splits in the IN/GND paths - this preserves the 40A surge capability and fast response of SMDA15C-5.TBT.
SMDA15C-5.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- SMDAC-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 15V (Max)
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 10A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 75pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SMDA15C-5.TBT FAQ
1.How can I place an order for SMDA15C-5.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA15C-5.TBT 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 SMDA15C-5.TBT reliable?
The price and inventory of SMDA15C-5.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA15C-5.TBT is usually 5 days.
3.What payment methods are accepted for SMDA15C-5.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA15C-5.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA15C-5.TBT?
SMDA15C-5.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA15C-5.TBT 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 SMDA15C-5.TBT?
For technical support, including SMDA15C-5.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA15C-5.TBT requirements.
6.How does Aetrix verify that SMDA15C-5.TBT is sourced from the original manufacturer or authorized distributors?
All SMDA15C-5.TBT 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 SMDA15C-5.TBT meets industry standards.
7.What is the process for return or replacement of SMDA15C-5.TBT?
All SMDA15C-5.TBT units undergo pre-shipment inspection (PSI). If there is an issue with SMDA15C-5.TBT, 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 SMDA15C-5.TBT part is unused and in its original packaging.
Return procedure for SMDA15C-5.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA15C-5.TBT 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 …
