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Microchip Technology SMDA24C-5E3/TR13
- Part No.:
- SMDA24C-5E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA24C-5E3/TR13.pdf
- Description:
- TVS DIODE 24VWM 55VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:9,047
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Product details
Overview
SMDA24C-5E3/TR13 from Microsemi (now Microchip Technology) is a 5-line bidirectional transient voltage suppressor (TVS) array in SO-8 package, rated for 300 W peak pulse power (8/20 µs), 24 V standoff voltage (VWM), and 43 V clamping voltage at 1 A. It protects I/O transceivers, microprocessors, and memory interfaces against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges.
For engineers reviewing the SMDA24C-5E3/TR13 datasheet, SMDA24C-5E3/TR13 pinout, SMDA24C-5E3/TR13 application, or SMDA24C-5E3/TR13 equivalent, key selection criteria include VWM ≥ 24 V circuit operating voltage, sub-35 pF line capacitance for high-speed data integrity, and SO-8 footprint compatibility with board-level ESD protection layouts.
Technical Context
This TVS array uses silicon avalanche diode technology to provide fast-response (sub-nanosecond) clamping across five independent bidirectional channels. Each channel features symmetrical breakdown (VBR min = 26.7 V, max = 30 V @ 1 mA) and low leakage (<1 µA @ 24 V).
The device operates from –55 °C to +150 °C and maintains stable clamping performance under repeated surge stress (<0.01% duty cycle). Its SO-8 layout integrates a common GND terminal (Pin 5) with four signal lines (Pins 1, 2, 3, 4) and two no-connect terminals (Pins 6, 7), enabling compact routing for multi-line interface protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 24 V - Maximum continuous operating voltage before conduction begins; matches 24 V industrial I/O bus systems. |
| Breakdown Voltage (VBR) | 26.7–30 V @ 1 mA - Ensures reliable triggering above normal signal swing while avoiding false trips. |
| Clamping Voltage (VC) | 43 V @ 1 A, 55 V @ 5 A - Limits transient energy delivered to downstream ICs during ESD/EFT events. |
| Peak Pulse Power | 300 W (8/20 µs) - Withstands IEC 61000-4-5 Level 3 surges (1 kV source impedance) on protected lines. |
| Line Capacitance | 35 pF @ 0 V, 1 MHz - Low enough to avoid signal integrity degradation on RS-485, CAN, or USB 2.0 lines. |
| Operating Temperature | –55 °C to +150 °C - Supports deployment in automotive engine control units and industrial motor drives. |
Pinout & Package
SO-8 surface-mount package (JEDEC MS-012AC), molded plastic body, 0.150" width, 1.27 mm pitch, 0.050" lead thickness. Pin #1 identified by dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Line 1 (Bidirectional) | ESD protection path for first I/O signal; connects to external trace routed to protected IC pin. |
| 2 | Line 2 (Bidirectional) | Second independent protection channel; electrically isolated from other lines except shared GND. |
| 3 | Line 3 (Bidirectional) | Third protected line; identical electrical specs to Pins 1–2 and 4. |
| 4 | Line 4 (Bidirectional) | Fourth protected line; supports differential or single-ended interface signals. |
| 5 | Ground (GND) | Common cathode connection for all four TVS diodes; must be low-inductance PCB plane tie. |
| 6, 7 | No Connect (N.C.) | Internally unconnected; no PCB trace or thermal pad required; may be left floating or grounded per layout. |
| 8 | Not assigned / N.C. | Unused terminal per SO-8 mechanical outline; not bonded internally. |
Key Features
| Feature | Design Value |
|---|---|
| 5-line bidirectional protection | Enables single-component safeguarding of full RS-485 transceiver (A/B, DE, RE, GND-referenced) or quad-SPI bus. |
| 300 W peak pulse rating (8/20 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial equipment without derating. |
| 35 pF line capacitance | Preserves signal rise/fall times on 10 Mbps RS-485 or 12 Mbps CAN FD links without added jitter. |
| –55 °C to +150 °C operation | Validates use in under-hood automotive modules and high-temp factory automation controllers. |
| IEC 61000-4-2 Level 4 compliance | Withstands ±15 kV contact / ±20 kV air discharge ESD without parametric shift or failure. |
Applications
| Industrial RS-485 Networks | Automotive Body Control Modules |
|---|---|
Use Scenario: Protecting half-duplex RS-485 transceivers in factory floor PLC networks exposed to cable coupling and ground loop transients. IC Role / Device Role: Board-level TVS array clamping A/B differential lines and driver enable/receive enable control pins. Use Value: Prevents latch-up or gate oxide damage in MAX13487E or SN65HVD72 transceivers during 4 kV EFT bursts. | Use Scenario: Shielding LIN bus transceivers and sensor inputs in door module ECUs subject to ISO 10605 ESD pulses. IC Role / Device Role: Bidirectional clamping of LIN data line, wake-up input, and switch sense inputs referenced to chassis ground. Use Value: Maintains <1 µA leakage at 12 V battery rail while suppressing ±8 kV contact discharges per ISO 10605. |
| Medical Patient Monitoring Ports | Point-of-Sale Terminal Interfaces |
Use Scenario: Safeguarding USB 2.0 and UART debug ports on bedside vital sign monitors subjected to clinical ESD events. IC Role / Device Role: Low-capacitance TVS on D+, D−, TX, RX, and VBUS lines to preserve signal fidelity and prevent firmware lockups. Use Value: 35 pF capacitance avoids USB 2.0 eye diagram closure; 43 V clamping prevents overvoltage on FT232RL or CP2102 USB-UART bridges. | Use Scenario: Hardening RS-232 and GPIO lines on retail payment terminals against customer-handling ESD and AC line transients. IC Role / Device Role: Multi-line suppression of serial port pins, keypad scan lines, and LED driver controls sharing common ground return. Use Value: Single SO-8 footprint replaces five discrete 0805 TVS diodes, reducing BOM count and PCB area by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-Q | Single-line unidirectional TVS; 24 V VWM, 38.9 V VC @ 1 A; 1.5 kW peak power; SMA package. | Requires five discrete devices and additional routing; lacks integrated multi-line GND reference. | Use when higher single-line surge margin is needed and board space allows discrete implementation. |
| SP1015-050 | 5-line bidirectional array; 24 V VWM; 40 V VC @ 1 A; 200 W peak power; 25 pF capacitance; SO-8. | Lower clamping voltage but reduced surge rating; optimized for USB 2.0 rather than industrial EFT. | Prefer for consumer-grade USB/HDMI ports where lower capacitance outweighs 300 W requirement. |
Compared with SMAJ24A-Q and SP1015-050, the SMDA24C-5E3/TR13 uniquely balances 300 W surge capacity, SO-8 integration, and 35 pF capacitance-making it optimal for industrial RS-485 and automotive LIN where both robustness and layout efficiency are mandatory.
Availability
SMDA24C-5E3/TR13 is available at Aetrix Electronics and suitable for industrial communications, automotive body electronics, and medical device interfaces requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SMDA24C-5E3/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-5 series was developed specifically for board-level ESD/EFT protection of multi-line digital interfaces in harsh environments, emphasizing thermal stability, low capacitance, and standardized SO-8 manufacturability.
FAQ
What is the standoff voltage rating of the SMDA24C-5E3/TR13?
The SMDA24C-5E3/TR13 has a standoff voltage (VWM) of 24 V, meaning it remains non-conductive up to this DC or continuous peak AC voltage. This rating ensures compatibility with 24 V industrial control buses and prevents false triggering during normal operation while still responding rapidly to transients exceeding 26.7 V breakdown threshold.
Does the SMDA24C-5E3/TR13 meet IEC 61000-4-2 ESD immunity standards?
Yes, the SMDA24C-5E3/TR13 is designed and characterized to meet IEC 61000-4-2 Level 4 (±15 kV contact, ±20 kV air discharge). Its sub-nanosecond response time and 43 V clamping voltage at 1 A ensure protected circuits remain functional after repeated ESD events without parameter shift or latent damage.
How many protected lines does the SMDA24C-5E3/TR13 support?
The SMDA24C-5E3/TR13 provides protection for four bidirectional signal lines plus a common ground (Pin 5), totaling five active protection paths. Pins 6 and 7 are no-connect terminals per the SO-8 mechanical drawing and internal die configuration, confirmed in MSC0331A.PDF revision N.
What is the line-to-line capacitance of the SMDA24C-5E3/TR13?
The SMDA24C-5E3/TR13 exhibits 35 pF typical capacitance per line at 0 V bias and 1 MHz, measured across each protected channel to ground. This value is verified in the Electrical Characteristics table of MSC0331A.PDF and enables use on 10+ Mbps serial interfaces without measurable signal distortion or timing skew.
Is the SMDA24C-5E3/TR13 compatible with lead-free reflow soldering processes?
Yes, the SMDA24C-5E3/TR13 is qualified for standard lead-free reflow per J-STD-020, with a maximum peak temperature of 260 °C. Its SO-8 package and molding compound withstand IPC/JEDEC moisture sensitivity level 1 (MSL-1), eliminating pre-bake requirements for most production environments.
SMDA24C-5E3/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:
- 5
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 55V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 35pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SMDA24C-5E3/TR13 FAQ
1.How can I place an order for SMDA24C-5E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA24C-5E3/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 SMDA24C-5E3/TR13 reliable?
The price and inventory of SMDA24C-5E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA24C-5E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA24C-5E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA24C-5E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA24C-5E3/TR13?
SMDA24C-5E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA24C-5E3/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 SMDA24C-5E3/TR13?
For technical support, including SMDA24C-5E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA24C-5E3/TR13 requirements.
6.How does Aetrix verify that SMDA24C-5E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA24C-5E3/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 SMDA24C-5E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA24C-5E3/TR13?
All SMDA24C-5E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA24C-5E3/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 SMDA24C-5E3/TR13 part is unused and in its original packaging.
Return procedure for SMDA24C-5E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA24C-5E3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
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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