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Microchip Technology SMDA05C-8E3/TR13
- Part No.:
- SMDA05C-8E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05C-8E3/TR13.pdf
- Description:
- TVS DIODE 5VWM 11VC 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,625
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Product details
Overview
SMDA05C-8E3/TR13 from Microsemi (now Microchip Technology) is a bi-directional 8-line transient voltage suppressor (TVS) diode array in SO-14 package, rated for 300 W peak pulse power (8/20 µs), 5.0 V standoff voltage (VWM), 6.0 V minimum breakdown (VBR @1 mA), and clamping to ≤9.8 V at 1 A - designed to protect 3.3 V/5 V digital interfaces including I/O transceivers, DRAM, SRAM, and HSIC against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges.
For engineers reviewing the SMDA05C-8E3/TR13 datasheet, SMDA05C-8E3/TR13 pinout, SMDA05C-8E3/TR13 application, or SMDA05C-8E3/TR13 equivalent, key selection criteria include verified 5.0 V stand-off compatibility with 3.3–5 V logic rails, sub-10 V clamping at 1 A, 200 pF capacitance at 0 V (1 MHz), -55°C to +150°C operating range, and SO-14 surface-mount mechanical form factor.
Technical Context
This TVS array implements eight independent, electrically isolated bi-directional protection channels in a single SO-14 package, each channel featuring a symmetrical back-to-back diode configuration enabling bidirectional surge clamping without polarity constraints. It operates within a wide thermal envelope (-55°C to +150°C) and meets UL 94V-0 flammability requirements.
The device is characterized for transient suppression under standardized 8/20 µs current pulses, delivering 300 W peak pulse power per channel with <0.01% pulse repetition rate. Its 40 µA max leakage at VWM ensures minimal impact on low-voltage signal integrity in high-speed digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 5.0 V - matches nominal 5 V supply rails; prevents conduction during normal operation |
| Breakdown Voltage (VBR) | 6.0 V min @ 1 mA - ensures reliable triggering above system operating voltage |
| Clamping Voltage (VC) | ≤9.8 V @ 1 A - limits transient overvoltage to safe levels for 3.3/5 V ICs |
| Peak Pulse Power | 300 W (8/20 µs) - withstands high-energy ESD/EFT events per IEC standards |
| Capacitance (C) | 200 pF @ 0 V, 1 MHz - suitable for moderate-speed data lines (e.g., UART, SPI, I²C) |
| Operating Temperature | -55°C to +150°C - supports industrial and automotive under-hood environments |
| Leakage Current (ID) | ≤40 µA @ VWM - avoids DC loading of sensitive low-power inputs |
Pinout & Package
SO-14 surface-mount package, molded plastic body marked "SDB8", pin #1 identified by dot on top surface, UL 94V-0 compliant encapsulation, weight ≈0.127 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9, 11, 13, 14 | I/O Channel Anode/Cathode Pair | Eight independent bi-directional protection paths; pins 1–14 configured as four differential pairs plus two singles (per internal schematic) |
| 2, 4, 6, 8, 10, 12 | Common Cathode / Ground Reference | Shared cathode connection for all eight channels; must be tied to clean local ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional 8-line protection | Enables single-device safeguarding of parallel data buses or multi-channel I/O without polarity concerns |
| Electrically isolated channels | Prevents cross-talk or failure propagation between protected lines |
| SO-14 surface-mount packaging | Supports automated PCB assembly and achieves compact board-level integration |
| UL 94V-0 flammability rating | Meets safety requirements for end equipment in industrial and consumer applications |
| Low clamping voltage (≤9.8 V @1 A) | Ensures downstream 5 V logic remains within absolute maximum ratings during surge events |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Protecting RS-485/RS-232 transceiver lines in programmable logic controller backplanes exposed to field wiring transients. IC Role / Device Role: Board-level transient suppressor placed directly at connector entry points before signal conditioning circuitry. Use Value: Clamps induced surges to ≤9.8 V while maintaining 200 pF loading compatible with 250 kbps RS-485 signaling. | Use Scenario: Safeguarding LIN bus and sensor interface lines in door module ECUs subject to ESD and load dump coupling. IC Role / Device Role: Primary ESD clamp on low-voltage (5 V) analog and digital sensor inputs and LIN transceiver pins. Use Value: Withstands -55°C to +150°C ambient and delivers <40 µA leakage to preserve battery-sensitive sleep current budgets. |
| Medical Diagnostic Equipment | Network Edge Routers |
Use Scenario: Shielding USB 2.0 and UART debug ports on portable ultrasound or patient monitor boards from handling ESD. IC Role / Device Role: I/O port protector mounted adjacent to connectors to minimize trace inductance during fast ESD discharge. Use Value: 300 W peak power rating handles ±15 kV contact discharge (IEC 61000-4-2 Level 4) without degradation. | Use Scenario: Protecting Ethernet PHY management interfaces (MDIO/MDC) and SMBus lines in fanless enterprise switches. IC Role / Device Role: Secondary surge protection stage after common-mode chokes, targeting differential-mode transients. Use Value: 6.0 V min VBR ensures no false triggering during 3.3 V rail ripple, while 200 pF avoids signal edge distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMDA05C-8T/R | Same electrical specs; tape-and-reel packaging differs (TR13 = 2,500 pcs/reel; T/R unspecified reel size) | No functional difference; identical SO-14 footprint and pinout | Select SMDA05C-8T/R only if alternate reel quantity or carrier specification required |
| SP1003-050 | Lower clamping (≤7.5 V @1 A), higher capacitance (350 pF), same VWM and package | Better clamping but higher signal loading - suited for lower-speed interfaces (<10 Mbps) | Choose SP1003-050 where tighter voltage limiting outweighs speed penalty; verify 350 pF compatibility |
Compared with SMDA05C-8E3/TR13, SMDA05C-8T/R offers identical protection performance with alternate packaging logistics, while SP1003-050 trades higher capacitance for improved clamping - making SMDA05C-8E3/TR13 optimal for balanced speed, leakage, and robustness in 5 V mixed-signal I/O.
Availability
SMDA05C-8E3/TR13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and high-reliability surge immunity.
Supply support for SMDA05C-8E3/TR13 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
Microsemi (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The TVSarray™ series - including SMDA05C-8E3/TR13 - was developed specifically for board-level ESD/EFT protection of low-voltage digital interfaces in harsh electromagnetic environments.
FAQ
What is the standoff voltage rating of SMDA05C-8E3/TR13?
The SMDA05C-8E3/TR13 has a standoff voltage (VWM) of 5.0 V, meaning it remains non-conductive under normal 5 V rail operation while reliably triggering above 6.0 V to clamp transients. This rating ensures compatibility with standard 5 V logic families and prevents false triggering during typical power supply ripple or noise.
Does SMDA05C-8E3/TR13 meet IEC 61000-4-2 ESD immunity requirements?
Yes, the SMDA05C-8E3/TR13 is explicitly designed to protect circuits against electrostatic discharge per IEC 61000-4-2, supporting up to ±15 kV contact discharge. Its 300 W peak pulse power rating and ≤9.8 V clamping voltage at 1 A ensure downstream 5 V components remain within safe operating limits during standardized ESD events.
What is the package type and pin count of SMDA05C-8E3/TR13?
SMDA05C-8E3/TR13 uses a molded SO-14 surface-mount package with 14 pins. Pin #1 is marked by a dot on the top surface, and the device follows EIA-481-1-A tape-and-reel packaging standard with 2,500 units per 13-inch reel (TR13 designation).
Can SMDA05C-8E3/TR13 be used to protect 3.3 V interfaces?
Yes, SMDA05C-8E3/TR13 is rated for protecting 3.0/3.3 V components as stated in its official documentation. Its 5.0 V standoff voltage provides sufficient margin above 3.3 V nominal rails, and its low leakage (≤40 µA) avoids loading sensitive 3.3 V inputs - making it suitable for DRAM, SRAM, HCMOS, and HSIC interfaces.
What is the maximum clamping voltage of SMDA05C-8E3/TR13 at 5 A?
The maximum clamping voltage of SMDA05C-8E3/TR13 is 11 V at 5 A (per Figure 2 in MSC0976.PDF). This value defines the upper voltage limit imposed on protected lines during high-current transients, ensuring continued safety margin for 5 V systems even under severe surge conditions.
SMDA05C-8E3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- TVSarray™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 8
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 200pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
SMDA05C-8E3/TR13 FAQ
1.How can I place an order for SMDA05C-8E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05C-8E3/TR13 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 SMDA05C-8E3/TR13 reliable?
The price and inventory of SMDA05C-8E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA05C-8E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA05C-8E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05C-8E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05C-8E3/TR13?
SMDA05C-8E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05C-8E3/TR13 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 SMDA05C-8E3/TR13?
For technical support, including SMDA05C-8E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05C-8E3/TR13 requirements.
6.How does Aetrix verify that SMDA05C-8E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA05C-8E3/TR13 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 SMDA05C-8E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA05C-8E3/TR13?
All SMDA05C-8E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05C-8E3/TR13, 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 SMDA05C-8E3/TR13 part is unused and in its original packaging.
Return procedure for SMDA05C-8E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05C-8E3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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