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Microchip Technology SMDA05C-7/TR13
- Part No.:
- SMDA05C-7/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05C-7/TR13.pdf
- Description:
- TVS DIODE 5VWM 11VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,410
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Product details
Overview
SMDA05C-7/TR13 from Diodes Incorporated is a bidirectional transient voltage suppressor (TVS) array in SO-8 package, rated for 300 W peak pulse power (8/20 µs), 5.0 V standoff voltage (VWM), and 9.8 V clamping voltage at 1 A. It protects up to 7 I/O lines in ESD-sensitive digital interfaces including USB, RS-485, and parallel bus transceivers.
For engineers reviewing the SMDA05C-7/TR13 datasheet, SMDA05C-7/TR13 pinout, SMDA05C-7/TR13 application, or SMDA05C-7/TR13 equivalent, key selection criteria include IEC 61000-4-2 ±15 kV contact ESD rating, low 40 µA leakage at VWM, 200 pF line capacitance at 0 V, -55°C to +150°C operating range, and SO-8 mechanical compatibility with standard board-level surge protection layouts.
Technical Context
This TVS array implements seven independent bidirectional avalanche diode pairs in a single SO-8 package, each pair configured as a back-to-back Zener structure for symmetrical clamping of positive and negative transients. Its 5.0 V standoff voltage ensures compatibility with 5 V TTL/CMOS logic families without false triggering during normal operation.
The device meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and secondary lightning surge immunity standards, with a 300 W peak pulse power rating defined for 8/20 µs current waveforms and <0.01% pulse repetition rate. Clamping performance is specified at 1 A (9.8 V) and 5 A (11 V), enabling robust protection of high-speed data lines while limiting voltage overshoot to safe levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 5.0 V - Maximum continuous working voltage before conduction; matches 5 V logic supply rails |
| VBR @1 mA | 6.0 V min - Breakdown threshold ensuring reliable turn-on during transients |
| VC @1 A | 9.8 V max - Clamped voltage seen by protected circuit under 1 A surge |
| VC @5 A | 11 V max - Voltage limit sustained during higher-energy 5 A surges |
| ID @VWM | 40 µA max - Low leakage preserves signal integrity and power efficiency |
| C @0 V, 1 MHz | 200 pF - Capacitance compatible with ≤10 Mbps data rates on protected lines |
| Operating Temp | -55°C to +150°C - Supports industrial and automotive under-hood environments |
| Peak Power | 300 W (8/20 µs) - Withstands IEC 61000-4-2 Level 4 and IEC 61000-4-4 burst events |
Pinout & Package
SO-8 surface-mount package (JEDEC MS-012AC), molded plastic body, 0.150 inch wide, 1.27 mm pitch, pin #1 marked by dot on top surface. Weight: 0.066 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Line 1 | Input terminal for first protected bidirectional data line |
| 2 | Cathode of Line 1 | Return path for Line 1; forms back-to-back pair with Pin 1 |
| 3 | Anode of Line 2 | Input terminal for second protected bidirectional data line |
| 4 | Cathode of Line 2 | Return path for Line 2; forms back-to-back pair with Pin 3 |
| 5 | Anode of Line 3 | Input terminal for third protected bidirectional data line |
| 6 | Cathode of Line 3 | Return path for Line 3; forms back-to-back pair with Pin 5 |
| 7 | Anode of Line 4 | Input terminal for fourth protected bidirectional data line |
| 8 | Common Cathode Bus | Shared cathode connection for Lines 5–7; Pins 1–6 serve Lines 1–3 only |
Key Features
| Feature | Design Value |
|---|---|
| 7-line bidirectional protection | Enables single-package suppression for multi-line interfaces like parallel buses or multi-channel UARTs |
| IEC 61000-4-2 compliant | Guarantees ±15 kV contact / ±25 kV air discharge ESD immunity per line |
| Low clamping voltage (9.8 V @1 A) | Keeps protected ICs within absolute maximum ratings during fast transients |
| 200 pF line capacitance | Minimizes signal distortion on 5 V digital I/O lines operating up to ~10 Mbps |
| SO-8 footprint | Allows drop-in replacement in existing layouts designed for standard 8-pin SOIC packages |
| -55°C to +150°C operation | Supports extended temperature deployment in industrial control and automotive ECUs |
Applications
| Industrial PLC I/O Modules | USB 2.0 Host/Peripheral Ports |
|---|---|
Use Scenario: Protection of 24 V digital input/output channels against induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Board-level TVS array clamping fast transients from relay switching, motor drive noise, and ground bounce. Use Value: Prevents latch-up or permanent damage to microcontroller GPIOs and level translators exposed to >1 kV EFT bursts. | Use Scenario: ESD safeguarding of D+ and D− lines in embedded USB host controllers and peripheral hubs. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed immediately at USB connector to shunt ESD before reaching PHY. Use Value: Maintains signal integrity below 480 Mbps while meeting USB-IF ESD compliance requirements. |
| RS-485 Transceiver Interfaces | Parallel Memory Bus Protection |
Use Scenario: Surge protection for half-duplex RS-485 nodes in building management systems with long cable runs. IC Role / Device Role / Timing Role: Line-side TVS array absorbing lightning-induced common-mode transients on A/B differential pairs. Use Value: Limits voltage excursion to <12 V during 300 W 8/20 µs surges, preserving transceiver fault tolerance. | Use Scenario: Clamping electrostatic discharge on address/data/control lines of SRAM or DRAM modules in industrial HMIs. IC Role / Device Role / Timing Role: Multi-line TVS array placed at memory socket edge to protect all 16–32 bit bus signals simultaneously. Use Value: 200 pF capacitance avoids timing skew across parallel bus lines while suppressing ±15 kV contact ESD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Single-line unidirectional TVS; 5.0 V VWM, 9.2 V VC@1 A; 400 W peak power | Requires 7 discrete devices for same line count; no shared cathode architecture | Preferred when board space allows discrete placement and unidirectional protection suffices |
| SP1003-050 | 7-line bidirectional array; 5.0 V VWM, 14.5 V VC@1 A; 150 W peak power; 30 pF capacitance | Lower capacitance but higher clamping voltage; optimized for high-speed USB 3.0/PCIe | Chosen when <30 pF is mandatory and 14.5 V clamping is acceptable for downstream ICs |
Compared with SMAJ5.0A, SMDA05C-7/TR13 reduces component count and layout complexity for multi-line protection; versus SP1003-050, it trades lower capacitance for tighter clamping and higher surge handling-ideal for cost-sensitive 5 V industrial I/O where speed is secondary to robustness.
Availability
SMDA05C-7/TR13 is available at Aetrix Electronics and suitable for industrial I/O modules, USB 2.0 interface protection, and RS-485 communication systems requiring stable component supply and long-term production continuity.
Supply support for SMDA05C-7/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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-reliability protection, signal integrity, and power management solutions.
The SMDAxxC-7 series is part of Diodes' TVSarray™ portfolio, engineered specifically for board-level ESD and surge protection of multi-line digital interfaces in industrial, computing, and communications equipment.
FAQ
What is the clamping voltage of SMDA05C-7/TR13 at 5 A?
The clamping voltage of SMDA05C-7/TR13 is 11 V maximum at 5 A (8/20 µs waveform), as specified in the MSC0888.PDF datasheet. This value ensures downstream 5 V logic components remain within safe operating limits during moderate-energy surges. The SMDA05C-7/TR13 achieves this with low dynamic impedance across its bidirectional diode structure, maintaining consistent performance over temperature.
Does SMDA05C-7/TR13 meet IEC 61000-4-2 ESD requirements?
Yes, SMDA05C-7/TR13 is designed and characterized to meet IEC 61000-4-2 Level 4 (±15 kV contact, ±25 kV air discharge). Its 300 W peak power rating and sub-10 V clamping at 1 A enable reliable suppression of ESD events without damaging sensitive I/O transceivers. The SMDA05C-7/TR13 performance is validated per the test conditions defined in the official Diodes Incorporated datasheet MSC0888.PDF.
What is the leakage current specification for SMDA05C-7/TR13 at its standoff voltage?
SMDA05C-7/TR13 exhibits a maximum leakage current of 40 µA at its 5.0 V standoff voltage (VWM) and 25°C ambient temperature. This low leakage minimizes standby power loss and prevents unintended biasing of protected signal lines. The SMDA05C-7/TR13 maintains this specification across its full operating temperature range, supporting stable operation in thermally demanding environments.
How many protected lines does SMDA05C-7/TR13 support, and how are they arranged?
SMDA05C-7/TR13 protects exactly seven bidirectional data or interface lines using an SO-8 package with internal back-to-back Zener pairs. Pins 1–6 form three independent line pairs (Lines 1–3), while Pin 8 serves as the common cathode bus for Lines 4–7. This configuration enables compact board-level protection of multi-signal interfaces such as parallel buses or multi-channel serial links using the SMDA05C-7/TR13.
What is the operating temperature range for SMDA05C-7/TR13?
SMDA05C-7/TR13 operates reliably from -55°C to +150°C, making it suitable for harsh-environment applications including industrial controls, automotive engine compartments, and outdoor telecommunications equipment. This extended range is achieved through optimized silicon processing and molding compound selection. The SMDA05C-7/TR13 retains full electrical specifications-including clamping voltage and leakage-across this entire temperature span.
SMDA05C-7/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- TVSarray™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 7
- 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:
- 8-SOIC
SMDA05C-7/TR13 FAQ
1.How can I place an order for SMDA05C-7/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05C-7/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-7/TR13 reliable?
The price and inventory of SMDA05C-7/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-7/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA05C-7/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05C-7/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05C-7/TR13?
SMDA05C-7/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05C-7/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-7/TR13?
For technical support, including SMDA05C-7/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05C-7/TR13 requirements.
6.How does Aetrix verify that SMDA05C-7/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA05C-7/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-7/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA05C-7/TR13?
All SMDA05C-7/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05C-7/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-7/TR13 part is unused and in its original packaging.
Return procedure for SMDA05C-7/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05C-7/TR13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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