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Microchip Technology SM16LC24C/TR13
- Part No.:
- SM16LC24C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SM16LC24C/TR13.pdf
- Description:
- TVS DIODE 24VWM 55VC 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
SM16LC24C/TR13 from Microsemi (now Microchip) is a bidirectional 8-line transient voltage suppressor (TVS) diode array in SO-16 package, rated for 300 W peak pulse power (8/20 µs), 24 V standoff voltage (VWM), and clamping voltage of 43 V at 1 A - designed to protect low-voltage I/O transceivers, DRAM/SRAM interfaces, and 3.3–24 V digital logic against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges.
For engineers reviewing the SM16LC24C/TR13 datasheet, SM16LC24C/TR13 pinout, SM16LC24C/TR13 application, or SM16LC24C/TR13 equivalent, key selection criteria include verified 24 V stand-off rating, bidirectional per-line protection, sub-25 pF capacitance at 0 V, -55°C to +150°C operating range, and SO-16 tape-and-reel packaging per EIA-481-1-A.
Technical Context
This TVS array implements eight independent, electrically isolated, bidirectional clamping diodes in a single SO-16 surface-mount package. Each channel features a 24 V working maximum (VWM), 26.7 V minimum breakdown (VBR @ 1 mA), and clamps to ≤43 V at 1 A and ≤55 V at 5 A per IEC 61000-4-2 waveform conditions.
It operates across -55°C to +150°C with <1 µA leakage at VWM, 25 pF typical junction capacitance at 0 V / 1 MHz, and a positive temperature coefficient of VBR (+28 mV/°C), enabling stable overvoltage response in thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 24 V - continuous operating voltage threshold before clamping begins; matches 24 V system rails and higher-voltage I/O interfaces. |
| Breakdown Voltage (VBR) | 26.7 V min @ 1 mA - ensures reliable turn-on above normal operating voltage while avoiding false triggering. |
| Clamping Voltage (VC) | 43 V max @ 1 A - limits transient energy delivered to protected ICs during ESD events per IEC 61000-4-2. |
| Junction Capacitance | 25 pF typ @ 0 V, 1 MHz - low enough to avoid signal integrity degradation on high-speed data lines (e.g., USB, RS-485, LVDS). |
| Peak Pulse Power | 300 W @ 8/20 µs - sustains high-energy surge suppression without thermal failure under standardized lightning/EFT stress. |
| Operating Temperature | -55°C to +150°C - supports deployment in automotive engine compartments, industrial PLCs, and outdoor telecom equipment. |
| Leakage Current | <1 µA @ VWM - prevents DC loading or battery drain in always-on low-power systems. |
Pinout & Package
Molded SO-16 surface-mount package (JEDEC MS-013AC), UL 94V-0 rated, 0.128 g weight, pin #1 identified by dot marking. Compatible with standard reflow profiles and automated pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9, 11, 13, 15 | Anode of bidirectional TVS pair | Each odd-numbered pin connects to one side of a symmetrical clamping diode pair protecting its associated line. |
| 2, 4, 6, 8, 10, 12, 14, 16 | Cathode of bidirectional TVS pair | Each even-numbered pin completes the dual-diode path; pins are not shared - eight fully independent channels. |
| Pin #1 | Reference marker | Dot-marked corner pin; used for orientation alignment during PCB layout and automated assembly verification. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 8-line protection | Enables symmetric clamping on AC-coupled or differential buses (e.g., RS-485, CAN, LVDS) without polarity constraints. |
| 25 pF typical capacitance | Preserves signal rise/fall times on data lines up to ~100 Mbps without measurable jitter or reflection. |
| Electrically isolated channels | Prevents cross-talk or fault propagation between protected lines - critical for multi-channel I/O buffers and transceivers. |
| UL 94V-0 encapsulation | Meets flammability safety requirements for enclosed industrial and medical electronics enclosures. |
| SO-16 tape-and-reel (TR13) | Supports high-volume SMT production with EIA-481-1-A compliance and 2,500-unit 13-inch reels. |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Protecting 24 V digital input channels from load dump and inductive switching transients in programmable logic controllers. IC Role / Device Role: Board-level transient suppressor placed directly at connector entry points before signal conditioning circuitry. Use Value: Clamps 300 W surges to ≤55 V while maintaining <1 µA leakage - ensuring sensor interface stability and long-term reliability. | Use Scenario: Safeguarding LIN bus and switch inputs in door modules exposed to ESD during assembly and field service. IC Role / Device Role: Bidirectional TVS array guarding multiple low-voltage control lines against human-body-model (HBM) discharges. Use Value: 24 V VWM aligns with automotive 24 V supply rails; 25 pF capacitance avoids LIN timing distortion. |
| Telecom Line Card Interfaces | Medical Diagnostic Equipment Ports |
Use Scenario: Shielding RS-485/RS-422 differential pairs on base station backplane cards from induced lightning surges. IC Role / Device Role: Per-line clamping device mounted adjacent to transceiver ICs to minimize trace inductance and clamping overshoot. Use Value: Independent 8-channel structure allows discrete protection of TX+/TX−, RX+/RX−, and auxiliary control lines without shared impedance. | Use Scenario: Securing USB 2.0 and UART ports on portable ultrasound and patient monitor devices against clinical ESD events. IC Role / Device Role: Low-capacitance TVS array placed at port connectors to meet IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact) immunity. Use Value: 43 V clamping at 1 A ensures downstream PHY ICs remain within absolute maximum ratings during worst-case discharge. |
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 | Single-line unidirectional TVS; 24 V VWM, 38.9 V VC @ 1 A; 150 W rating; DO-214AC package. | Requires 8 separate devices and routing; no integrated channel isolation; unsuitable for bidirectional AC signals. | Select when board space permits discrete placement and only unidirectional protection is needed. |
| SP1003-02HTG | 8-line bidirectional array; 24 V VWM; 40 V VC @ 1 A; 20 pF capacitance; SOT-23-8 package (2×4 configuration). | Smaller footprint but lower 150 W peak power; limited to lower-energy transients and shorter trace lengths. | Select when ultra-low capacitance and compact size outweigh need for 300 W surge handling. |
Compared with SMAJ24A and SP1003-02HTG, the SM16LC24C/TR13 uniquely delivers 300 W per line in an SO-16 format with verified 25 pF capacitance and full electrical channel isolation - making it optimal for high-reliability, multi-line 24 V I/O protection where surge robustness and layout simplicity are jointly critical.
Availability
SM16LC24C/TR13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and telecom line card interfaces requiring stable component supply, long-lifecycle support, and consistent ESD/EFT immunity performance.
Supply support for SM16LC24C/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 SM16LCxxC TVSarray™ series was developed specifically for board-level transient suppression in harsh-environment electronics, emphasizing low capacitance, high surge tolerance, and extended temperature operation across 3.3 V to 24 V systems.
FAQ
What is the standoff voltage rating of the SM16LC24C/TR13?
The SM16LC24C/TR13 has a maximum working standoff voltage (VWM) of 24 V, meaning it remains non-conductive under normal 24 V DC or peak AC conditions while activating only during overvoltage transients. This rating is validated per IEC 61000-4-2 test conditions and aligns with 24 V industrial and automotive power domains. The SM16LC24C/TR13 maintains <1 µA leakage current at this voltage.
Is the SM16LC24C/TR13 bidirectional, and how is that implemented?
Yes, the SM16LC24C/TR13 is a bidirectional TVS array, achieved via eight independent back-to-back diode pairs - one per channel - enabling symmetrical clamping for both positive and negative transients. Each channel uses pins 1&2, 3&4, ..., 15&16 as matched anode/cathode terminals. This architecture makes the SM16LC24C/TR13 suitable for AC-coupled interfaces like RS-485 and LIN without polarity concerns.
What is the clamping voltage of the SM16LC24C/TR13 at 5 A, and why does it matter?
The SM16LC24C/TR13 clamps to a maximum of 55 V at 5 A (8/20 µs pulse), as specified in the MSC0884.PDF datasheet. This value defines the upper voltage limit imposed on protected circuitry during high-current surges such as lightning-induced transients. Keeping clamped voltage below the absolute maximum rating of downstream ICs - e.g., 60 V for many 24 V transceivers - is essential to prevent latch-up or permanent damage, confirming the SM16LC24C/TR13's suitability for 24 V system protection.
Does the SM16LC24C/TR13 meet IEC 61000-4-2 and IEC 61000-4-4 standards?
Yes, the SM16LC24C/TR13 is explicitly designed and characterized to meet IEC 61000-4-2 (ESD immunity up to ±15 kV air, ±8 kV contact) and IEC 61000-4-4 (EFT bursts at 4 kV). Its 300 W peak pulse power rating, low clamping voltage, and fast response time (<1 ns) ensure compliance when correctly laid out - i.e., with minimal trace inductance between the SM16LC24C/TR13 and protected I/O pins.
What is the junction capacitance of the SM16LC24C/TR13, and how does it affect high-speed signals?
The SM16LC24C/TR13 exhibits 25 pF typical junction capacitance per channel at 0 V and 1 MHz, measured across each diode pair. This low value minimizes capacitive loading on data lines, preserving signal integrity for protocols including RS-485, CAN FD, and UART up to ~10 Mbps. Because the SM16LC24C/TR13 maintains consistent capacitance across its operating voltage range, timing skew and rise-time degradation remain negligible in properly terminated designs.
SM16LC24C/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 8
- 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:
- 25pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
SM16LC24C/TR13 FAQ
1.How can I place an order for SM16LC24C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM16LC24C/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 SM16LC24C/TR13 reliable?
The price and inventory of SM16LC24C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM16LC24C/TR13 is usually 5 days.
3.What payment methods are accepted for SM16LC24C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM16LC24C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM16LC24C/TR13?
SM16LC24C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM16LC24C/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 SM16LC24C/TR13?
For technical support, including SM16LC24C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM16LC24C/TR13 requirements.
6.How does Aetrix verify that SM16LC24C/TR13 is sourced from the original manufacturer or authorized distributors?
All SM16LC24C/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 SM16LC24C/TR13 meets industry standards.
7.What is the process for return or replacement of SM16LC24C/TR13?
All SM16LC24C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SM16LC24C/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 SM16LC24C/TR13 part is unused and in its original packaging.
Return procedure for SM16LC24C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM16LC24C/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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