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Semtech Corporation SRDA05-6.TBT
- Part No.:
- SRDA05-6.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SRDA05-6.TBT.pdf
- Description:
- TVS DIODE 5VWM 20VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,858
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Product details
Overview
SRDA05-6.TBT from Semtech is a transient diverting suppressor designed for high-energy EOS 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 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the SRDA05-6.TBT 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 compact, high-reliability designs.
Technical Context
The SRDA05-6.TBT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with <20mΩ dynamic resistance, 22V reverse stand-off voltage, and stable 27.5–28V clamping up to 40A - enabling robust protection for USB PD buses and load switch inputs without thermal derating penalties typical of junction-based TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV (RS = 42Ω) industrial surge testing. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 requirements for handheld and portable electronics interfaces. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
Pinout & Package
SRDA05-6.TBT is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed pad-less construction and UL 94V-0 molding compound.
| 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 terminal; connects directly to VBus or power/data line requiring 22V EOS protection - all three pins are internally tied and must be routed together. |
Key Features
| Feature | Design Value |
|---|---|
| Constant Clamping Voltage | 27.5–28V across full 24–40A surge range - eliminates need for oversized IPP margining to meet downstream IC voltage limits. |
| Temperature-Stable Protection | Clamping voltage unchanged from –40°C to +125°C - removes thermal derating uncertainty in industrial or automotive under-hood environments. |
| FET-Based Surge Path | Shunt FET with sub-0.1Ω RDS(on) - dissipates energy in channel rather than PN junction, avoiding thermal runaway and enabling higher single-pulse energy handling. |
| Low-Leakage Operation | ≤600nA at 22V - prevents measurable power loss or voltage droop on always-on 22V rails in battery-powered IoT devices. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor placed between connector and PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - keeps PD controller gate oxide and internal FETs within safe operating voltage while eliminating thermal derating calculations. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary EOS barrier on VIN or EN node, preventing latch-up or gate oxide rupture during field surges. Use Value: Limits voltage excursion to ≤28V during 40A transients - protects internal MOSFETs and control logic without requiring external series resistors or RC snubbers. |
| IoT Device Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Securing 22V-capable power inputs on battery-backed edge sensors, smart actuators, and wireless gateways deployed in uncontrolled environments. IC Role / Device Role / Timing Role: Standalone surge clamp on main DC input before PMIC or charging IC. Use Value: Delivers ±30kV ESD immunity and 40A surge rating in 1.6×1.6mm footprint - enables compact, certified designs without sacrificing reliability. |
Use Scenario: Hardening 20V-class adapter inputs on ultrabooks and tablets against accidental AC mains coupling and ESD during hot-plug events. IC Role / Device Role / Timing Role: First-line defense on DC jack or USB-C port VBus path prior to system power management ICs. Use Value: Provides stable 28V clamping independent of ambient temperature - ensures consistent protection margin across seasonal operating conditions and chassis thermal gradients. |
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 - direct Semtech-manufactured variant with tape-and-reel packaging. | No functional difference; used interchangeably in production where reel quantity (3,000 pcs) matches procurement scale. | Select TDS2211P.C when sourcing full reels for high-volume manufacturing; SRDA05-6.TBT may be available in smaller quantities or alternate packaging formats. |
| SRDA05-4.TBT | Same family architecture but rated for 5V working voltage (VRWM = 5V), lower clamping (~7.5V), and reduced 20A IPP - not suitable for 22V systems. | Designed for USB 2.0/3.x data lines or 5V logic rails; cannot replace SRDA05-6.TBT in 22V power path applications. | Only consider SRDA05-4.TBT for lower-voltage signal line protection - never as drop-in replacement for SRDA05-6.TBT in VBus or load switch input roles. |
Compared with TDS2211P.C, SRDA05-6.TBT shares identical protection performance and package but may differ in reel configuration or traceability labeling; versus SRDA05-4.TBT, it provides 4.4× higher working voltage and 2× higher surge current capability - making it the only viable option for 22V industrial and USB PD power rail protection.
Availability
SRDA05-6.TBT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, IoT device power rails, and notebook/tablet DC input protection requiring stable component supply across extended temperature ranges and high-reliability surge standards.
Supply support for SRDA05-6.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 applications.
The SRDA05-6.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace traditional TVS diodes in high-voltage, high-energy EOS protection scenarios where stable clamping and temperature independence are critical.
FAQ
What is the maximum continuous operating voltage for SRDA05-6.TBT?
The SRDA05-6.TBT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes SRDA05-6.TBT suitable for protecting 20V USB PD buses and other 22V-rated power rails where sustained voltage exposure occurs during normal operation.
Does SRDA05-6.TBT meet IEC 61000-4-5 surge immunity requirements?
Yes, SRDA05-6.TBT is rated for 40A peak pulse current using the 8/20μs waveform per IEC 61000-4-5, and supports the common industrial ±1kV test level (1.2/50μs voltage + 8/20μs current, RS = 42Ω). Its 27.5–28V clamping ensures protected circuits remain within safe voltage margins during such events.
How does SRDA05-6.TBT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SRDA05-6.TBT uses a triggered FET architecture that maintains ~27.5–28V clamping from 24A to 40A. This flat response eliminates the need to overspecify IPP just to meet downstream voltage limits.
What is the recommended PCB layout for optimal performance of SRDA05-6.TBT?
Place SRDA05-6.TBT as close as possible to the protected connector. Route all three IN pins (4,5,6) together via a single short, wide trace, and connect all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Avoid thermal pads - energy is dissipated in the FET channel, not the die junction.
Is SRDA05-6.TBT compatible with lead-free reflow processes?
Yes, SRDA05-6.TBT is Pb-free, halogen-free, and RoHS/WEEE compliant, with a lead finish qualified for standard JEDEC J-STD-020 moisture sensitivity level (MSL) 1 reflow profiles. Its DFN-6 package withstands peak temperatures up to 260°C during lead-free soldering without degradation.
SRDA05-6.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- RailClamp®, SRDA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 6
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SRDA05-6.TBT FAQ
1.How can I place an order for SRDA05-6.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for SRDA05-6.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 SRDA05-6.TBT reliable?
The price and inventory of SRDA05-6.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRDA05-6.TBT is usually 5 days.
3.What payment methods are accepted for SRDA05-6.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRDA05-6.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRDA05-6.TBT?
SRDA05-6.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRDA05-6.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 SRDA05-6.TBT?
For technical support, including SRDA05-6.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRDA05-6.TBT requirements.
6.How does Aetrix verify that SRDA05-6.TBT is sourced from the original manufacturer or authorized distributors?
All SRDA05-6.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 SRDA05-6.TBT meets industry standards.
7.What is the process for return or replacement of SRDA05-6.TBT?
All SRDA05-6.TBT units undergo pre-shipment inspection (PSI). If there is an issue with SRDA05-6.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 SRDA05-6.TBT part is unused and in its original packaging.
Return procedure for SRDA05-6.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SRDA05-6.TBT Tags
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