My Inquiry
My Account
Microchip Technology SMDA05C-4E3/TR13
- Part No.:
- SMDA05C-4E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05C-4E3/TR13.pdf
- Description:
- TVS DIODE 5VWM 11VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:9,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMDA05C-4E3/TR13 from Microsemi (now Microchip Technology) is a 4-channel 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 clamping voltage of 9.8 V at 1 A. It protects I/O transceivers, microprocessors, and SRAM/DRAM interfaces against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges.
For engineers reviewing the SMDA05C-4E3/TR13 datasheet, SMDA05C-4E3/TR13 pinout, SMDA05C-4E3/TR13 application, or SMDA05C-4E3/TR13 equivalent, key selection criteria include bidirectional line count, VWM ≥ 5.0 V, clamping performance at 1–5 A, SO-8 thermal and layout compatibility, and board-level surge compliance per IEC 61000-4-2/4-4.
Technical Context
This TVS array integrates four identical, symmetrical avalanche diode pairs in a single SO-8 package, enabling simultaneous protection of four bidirectional signal lines without polarity constraints. Each channel operates with a minimum breakdown voltage of 6.0 V and maximum leakage current of 400 µA at 5.0 V standoff.
The device sustains operation across –55 °C to +150 °C and delivers consistent clamping (9.8 V @ 1 A, 11 V @ 5 A) under standardized 8/20 µs surge waveforms, supporting robust board-level immunity in industrial and telecom I/O stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 5.0 V - Maximum continuous operating voltage before conduction; must match or exceed circuit's peak signal voltage. |
| Breakdown Voltage (VBR) | 6.0 V min @ 1 mA - Guaranteed avalanche onset threshold ensuring reliable turn-on during transients. |
| Clamping Voltage (VC) | 9.8 V @ 1 A - Limits line voltage to safe level during 1-A surge, protecting downstream CMOS/TTL inputs. |
| Peak Pulse Power | 300 W @ 8/20 µs - Sustains high-energy transients without failure, per IEC 61000-4-2 Level 4 (15 kV contact). |
| Capacitance @ 0 V | 200 pF - Low enough to avoid signal integrity degradation on moderate-speed digital I/O (e.g., RS-232, USB 1.1). |
| Operating Temp Range | –55 °C to +150 °C - Enables deployment in automotive engine control units and industrial PLC backplanes. |
Pinout & Package
SO-8 surface-mount package (JEDEC MS-012AC), 4.9 mm × 6.0 mm footprint, 1.75 mm max height, pin #1 marked by dot. Molded plastic body with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Anode/Cathode pair per channel | Bidirectional clamping path - each pin pair (e.g., Pin 1–2) forms one protected line; no polarity assignment required. |
| 5, 6, 7, 8 | Anode/Cathode pair per channel | Complementary terminals completing four independent TVS paths; pins are paired as (1–2), (3–4), (5–6), (7–8). |
Key Features
| Feature | Design Value |
|---|---|
| 4-channel bidirectional protection | Single SO-8 device replaces four discrete TVS diodes, reducing PCB area and assembly cost. |
| IEC 61000-4-2/4-4 compliance | Validated for ±15 kV contact / ±20 kV air discharge ESD and 4 kV EFT bursts - meets industrial immunity standards. |
| Low clamping ratio (VC/VBR) | 1.63 (9.8 V / 6.0 V) - Minimizes overvoltage stress on protected ICs during fast transients. |
| High-temperature operation | Rated up to +150 °C - Suitable for under-hood automotive modules and high-power industrial enclosures. |
Applications
| RS-232 Transceiver Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting RS-232 driver/receiver ICs (e.g., MAX232) from ESD events during cable hot-plug or field maintenance. IC Role / Device Role / Timing Role: Board-level transient clamp placed directly at connector entry point, shunting surge energy before it reaches transceiver pins. Use Value: Prevents latch-up or gate oxide damage in RS-232 ICs by limiting line voltage to ≤9.8 V during 1-A ESD strike. | Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers exposed to relay coil flyback and EFT noise in factory floors. IC Role / Device Role / Timing Role: Front-end surge suppression for optocoupler input stages, absorbing repetitive 4-kV EFT bursts per IEC 61000-4-4. Use Value: Maintains signal integrity and prevents false triggering by clamping transients within 1 ns response time and 300-W peak capacity. |
| USB 1.1 Data Line Protection | Automotive Body Control Module I/O |
Use Scenario: Shielding D+ and D– lines of legacy USB 1.1 peripherals (e.g., HID devices) from user-hand ESD in consumer electronics. IC Role / Device Role / Timing Role: Bidirectional TVS pair per differential line, placed adjacent to USB connector with minimal trace length. Use Value: 200 pF capacitance avoids signal rise-time degradation while clamping ±15 kV ESD to <10 V at the PHY interface. | Use Scenario: Protecting LIN bus and sensor input lines in automotive body control units subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary surge guard after primary LC filtering, handling residual fast transients near microcontroller GPIOs. Use Value: Withstands –55 °C to +150 °C ambient and clamps secondary lightning-induced surges to safe levels for ASIL-B compliant systems. |
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 | Unidirectional, single-line, DO-214AC package; 5.0 V VWM, 9.2 V VC @ 1 A | Requires four separate devices and polarity-aware routing; higher board area and assembly cost | Choose when discrete placement or unidirectional protection (e.g., DC power rail) is required. |
| SP1003-04UTG | 4-channel bidirectional, SOT-23-6 package; 5.0 V VWM, 14.5 V VC @ 1 A, 30 pF capacitance | Lower capacitance but higher clamping voltage; suited for high-speed data (e.g., USB 2.0), less robust for high-energy EFT | Prefer for space-constrained, high-frequency designs where 14.5 V clamping is acceptable. |
Compared with SMAJ5.0A and SP1003-04UTG, the SMDA05C-4E3/TR13 uniquely balances 4-line integration, 9.8 V low-clamp performance, and SO-8 thermal mass for high-reliability industrial I/O - offering superior surge handling without sacrificing layout simplicity.
Availability
SMDA05C-4E3/TR13 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, RS-232 interface cards, and USB 1.1 peripheral designs requiring stable component supply and long-term obsolescence management.
Supply support for SMDA05C-4E3/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 SMDAxxC-4 series was developed specifically for board-level ESD/EFT protection of multi-line digital interfaces in harsh environments, emphasizing low clamping, thermal robustness, and JEDEC-standard SO-8 manufacturability.
FAQ
What is the standoff voltage rating of the SMDA05C-4E3/TR13?
The SMDA05C-4E3/TR13 has a standoff voltage (VWM) of 5.0 V, meaning it remains non-conductive under normal operating conditions up to this DC or RMS voltage. This value ensures compatibility with 5 V logic families like TTL and HCMOS, and must be selected to equal or exceed the peak working voltage of the protected line to prevent leakage or false triggering during steady-state operation.
Does the SMDA05C-4E3/TR13 support bidirectional signal lines?
Yes, the SMDA05C-4E3/TR13 supports bidirectional protection across all four channels. Its internal structure consists of symmetrical back-to-back diode pairs per line, allowing it to suppress positive and negative transients equally - ideal for AC-coupled or differential interfaces such as RS-232, CAN physical layer stubs, and USB D+/D– lines without polarity concerns.
What is the clamping voltage of the SMDA05C-4E3/TR13 at 5 A surge current?
The SMDA05C-4E3/TR13 clamps to a maximum of 11 V at 5 A (8/20 µs waveform), as specified in the MSC0886 datasheet. This value reflects worst-case voltage seen by protected circuitry during high-current transients, and is critical for ensuring downstream ICs (e.g., microcontroller GPIOs or transceiver inputs) remain within absolute maximum ratings during surge events.
Is the SMDA05C-4E3/TR13 compliant with IEC 61000-4-2 and IEC 61000-4-4?
Yes, the SMDA05C-4E3/TR13 is explicitly designed and tested to meet IEC 61000-4-2 (ESD immunity up to ±15 kV contact) and IEC 61000-4-4 (electrical fast transient burst immunity up to 4 kV). These compliance statements are confirmed in the MSC0886 datasheet under "Features" and "Application" sections, validating its use in industrial and automotive board-level protection schemes.
What package type and pin configuration does the SMDA05C-4E3/TR13 use?
The SMDA05C-4E3/TR13 uses an SO-8 surface-mount package (JEDEC MS-012AC) with eight gull-wing leads. Pins are grouped into four independent bidirectional channels: (Pin 1–2), (Pin 3–4), (Pin 5–6), and (Pin 7–8). Pin #1 is marked by a dot on the top surface, and the device requires standard reflow soldering per J-STD-020.
SMDA05C-4E3/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:
- 4
- 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-4E3/TR13 FAQ
1.How can I place an order for SMDA05C-4E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05C-4E3/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-4E3/TR13 reliable?
The price and inventory of SMDA05C-4E3/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-4E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA05C-4E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05C-4E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05C-4E3/TR13?
SMDA05C-4E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05C-4E3/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-4E3/TR13?
For technical support, including SMDA05C-4E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05C-4E3/TR13 requirements.
6.How does Aetrix verify that SMDA05C-4E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA05C-4E3/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-4E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA05C-4E3/TR13?
All SMDA05C-4E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05C-4E3/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-4E3/TR13 part is unused and in its original packaging.
Return procedure for SMDA05C-4E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05C-4E3/TR13 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
