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Microchip Technology SM16LC08CE3/TR13
- Part No.:
- SM16LC08CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SM16LC08CE3/TR13.pdf
- Description:
- TVS DIODE 8VWM 13.4VC 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,820
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Product details
Overview
SM16LC08CE3/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), 8.0 V standoff voltage (VWM), and 13.4 V clamping voltage at 1 A. It provides board-level ESD protection per IEC 61000-4-2 (±15 kV contact) and EFT immunity per IEC 61000-4-4 for 3.3 V–24 V interfaces including DRAM, SRAM, and low-voltage I/O transceivers.
For engineers reviewing the SM16LC08CE3/TR13 datasheet, SM16LC08CE3/TR13 pinout, SM16LC08CE3/TR13 application, or SM16LC08CE3/TR13 equivalent, key selection criteria include standoff voltage matching system operating voltage, clamping performance under 1–5 A transient current, bidirectional protection capability, SO-16 footprint compatibility, and sub-25 pF line capacitance for high-speed signal integrity.
Technical Context
This TVS array integrates eight independent, electrically isolated bidirectional avalanche diode pairs in a single SO-16 package. Each channel features symmetric breakdown (VBR min = 8.5 V @ 1 mA) and low clamping (VC = 13.4 V @ 1 A, 16.6 V @ 5 A), enabling robust suppression of fast-rising transients without affecting normal signal operation.
Designed for board-level I/O protection, it operates across –55 °C to +150 °C, meets UL 94V-0 flammability, and supports tape-and-reel delivery (EIA-481-1-A, 2500 pcs/reel). Its 25 pF typical capacitance at 1 MHz and 0 V bias ensures minimal signal distortion on data lines up to ~100 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 8.0 V - Maximum continuous operating voltage before conduction; matches 3.3 V–8 V digital I/O rails. |
| Breakdown Voltage (VBR) | 8.5 V min @ 1 mA - Ensures reliable turn-on during transients while avoiding false triggering. |
| Clamping Voltage (VC) | 13.4 V @ 1 A - Limits voltage seen by protected IC during 8/20 µs surge, preserving downstream logic. |
| Peak Pulse Power | 300 W @ 8/20 µs - Sustains high-energy ESD/EFT events without degradation. |
| Line Capacitance | 25 pF @ 1 MHz, 0 V - Enables use on USB 1.1, RS-232, and other ≤100 Mbps interfaces. |
| Operating Temp Range | –55 °C to +150 °C - Supports automotive under-hood and industrial control environments. |
| ESD Rating | ±15 kV contact per IEC 61000-4-2 - Meets industrial and telecom equipment immunity requirements. |
Pinout & Package
Molded SO-16 surface-mount package (JEDEC MS-013AC), 10.10 × 5.23 mm body, 1.27 mm pitch, UL 94V-0 rated epoxy. Pin #1 identified by dot marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9, 11, 13, 15 | I/O Line Anode/Cathode Pair Input | Each odd-numbered pin connects to one bidirectional TVS channel input; paired with adjacent even pin. |
| 2, 4, 6, 8, 10, 12, 14, 16 | Common Cathode/Anode Return | Even pins serve as shared return paths-pins 2/4/6/8 tied internally to one common node, pins 10/12/14/16 to second common node (dual-common configuration). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 8-line protection | Enables symmetrical clamping on AC-coupled or differential buses (e.g., RS-485, CAN) without polarity constraints. |
| Electrically isolated channels | Prevents fault propagation between protected lines-critical for multi-channel I/O systems like parallel memory buses. |
| Low 25 pF capacitance | Maintains signal rise/fall time integrity on high-speed digital lines; avoids timing skew or reflection issues. |
| Dual common-node architecture | Reduces PCB routing complexity by grouping four lines per common return, minimizing ground loop area. |
| –55 °C to +150 °C operation | Validates use in extended-temperature applications including engine control units and outdoor telecom gear. |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Protecting 24 V digital input channels against load dump and EFT in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Board-level transient suppressor placed directly at connector entry point, shunting surges before reaching microcontroller GPIO or optocoupler inputs. Use Value: Prevents latch-up or permanent damage to 24 V-tolerant interface ICs during field installation or maintenance-induced transients. | Use Scenario: Safeguarding LIN bus transceivers and sensor signal lines (e.g., temperature, position) in door modules exposed to ESD during assembly or service. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with LIN data line and supply rail, clamping ±8 kV ESD pulses without distorting 19.2 kbps signaling. Use Value: Eliminates need for external RC filters or ferrites, reducing BOM count while maintaining full LIN compliance. |
| Telecom Line Card Interfaces | Embedded Memory Subsystems |
Use Scenario: Shielding RS-232/RS-485 transceiver pins on carrier-grade line cards subjected to lightning-induced surges in central office environments. IC Role / Device Role / Timing Role: Primary protection device mounted adjacent to DB9/DB25 connectors, absorbing >300 W transients before they reach MAX3232 or SN65HVD7x ICs. Use Value: Achieves IEC 61000-4-5 Level 3 (1 kV line-earth) immunity without derating or parallel staging. | Use Scenario: Guarding parallel address/data buses between SoC and DDR2/DDR3 SDRAM in networking appliances where board-level ESD is a reliability risk. IC Role / Device Role / Timing Role: Per-line TVS on each DQ, DQS, and address bit, placed within 5 mm of memory connector to minimize inductance and ensure sub-15 V clamping. Use Value: Prevents bit errors or memory controller reset caused by ESD-induced voltage overshoot on 1.8 V/3.3 V memory interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A (onsemi) | Single-line unidirectional TVS; 8.0 V VWM, 12.8 V VC @ 1 A; 300 W rating; DO-214AC package. | Requires 8 discrete devices + layout area; no integrated dual-common return; higher total capacitance if paralleled. | Use when space allows discrete placement and only unidirectional protection is needed (e.g., DC-biased power rails). |
| SP1003-08UTG (Littelfuse) | 8-line bidirectional TVS in SO-16; 8.0 V VWM, 15 V VC @ 1 A; 25 pF; same footprint but different internal topology. | Higher clamping voltage increases stress on protected ICs; identical pinout enables drop-in replacement only after validation. | Consider for new designs where Littelfuse supply chain preference applies; verify clamping margin with target IC's absolute max ratings. |
Compared with SMAJ8.0A, SM16LC08CE3/TR13 reduces component count and PCB area by integrating eight channels with dual common returns; versus SP1003-08UTG, it offers lower clamping (13.4 V vs. 15 V), tighter VBR tolerance, and proven legacy qualification for industrial temperature cycling.
Availability
SM16LC08CE3/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-term lifecycle support, and traceable sourcing.
Supply support for SM16LC08CE3/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 SM16CxxC TVSarray™ series was developed to deliver standardized, high-power board-level ESD/EFT protection for mission-critical embedded systems operating across extreme temperatures and harsh electrical environments.
FAQ
What is the standoff voltage rating of SM16LC08CE3/TR13, and how does it relate to system voltage selection?
The SM16LC08CE3/TR13 has a standoff voltage (VWM) of 8.0 V, meaning it remains non-conductive below this DC or RMS voltage. This rating is selected to match or slightly exceed the maximum continuous operating voltage of the protected circuit-such as 3.3 V or 5 V logic rails with margin-ensuring no leakage or false triggering during normal operation while allowing rapid clamping during transients. The SM16LC08CE3/TR13 is not suitable for 12 V or higher nominal systems without verification of transient margin.
Does SM16LC08CE3/TR13 support bidirectional signal lines like RS-485 or CAN, and how is that implemented?
Yes, SM16LC08CE3/TR13 supports bidirectional signal lines because each of its eight channels consists of back-to-back avalanche diodes, enabling symmetrical clamping for both positive and negative transients. This architecture makes it suitable for AC-coupled or differential buses such as RS-485, LIN, and low-speed CAN. The SM16LC08CE3/TR13 achieves this without external biasing or polarity constraints, unlike unidirectional TVS arrays that require careful DC offset alignment.
What is the clamping voltage of SM16LC08CE3/TR13 at 5 A, and why does that matter for system protection?
The SM16LC08CE3/TR13 clamps to a maximum of 16.6 V at 5 A for an 8/20 µs transient waveform. This value defines the worst-case voltage imposed on the protected IC during high-current surges-such as nearby lightning strikes or inductive switching events. To ensure safety, the protected device's absolute maximum voltage rating must exceed 16.6 V; otherwise, secondary failure may occur. The SM16LC08CE3/TR13's 16.6 V clamping is validated per Figure 2 in MSC0884.PDF and confirmed across production lots.
Is SM16LC08CE3/TR13 compatible with automated SMT assembly, and what packaging format does it ship in?
Yes, SM16LC08CE3/TR13 is fully compatible with standard surface-mount technology processes, including reflow soldering per J-STD-020 profiles. It ships in EIA-481-1-A compliant tape-and-reel format on 13-inch reels containing 2,500 units, with optional carrier tubes (48 pcs) available. The SO-16 package features gull-wing leads, JEDEC-standard dimensions, and UL 94V-0 molding compound-ensuring reliable pick-and-place accuracy and thermal stability during manufacturing.
How does the dual common-node configuration of SM16LC08CE3/TR13 affect PCB layout and grounding strategy?
The SM16LC08CE3/TR13 groups its eight channels into two sets of four lines each, with pins 2/4/6/8 sharing one common node and pins 10/12/14/16 sharing another. This requires separate low-inductance ground traces or planes for each common node to prevent coupling between channel groups. Proper layout minimizes ground bounce and ensures consistent clamping across all lines. The SM16LC08CE3/TR13 datasheet recommends direct connection to dedicated ground pours with multiple vias-especially critical in high-noise environments like motor drives or RF modules.
SM16LC08CE3/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):
- 8V
- Voltage - Breakdown (Min):
- 8.5V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- 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
SM16LC08CE3/TR13 FAQ
1.How can I place an order for SM16LC08CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM16LC08CE3/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 SM16LC08CE3/TR13 reliable?
The price and inventory of SM16LC08CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM16LC08CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SM16LC08CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM16LC08CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM16LC08CE3/TR13?
SM16LC08CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM16LC08CE3/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 SM16LC08CE3/TR13?
For technical support, including SM16LC08CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM16LC08CE3/TR13 requirements.
6.How does Aetrix verify that SM16LC08CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SM16LC08CE3/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 SM16LC08CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SM16LC08CE3/TR13?
All SM16LC08CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SM16LC08CE3/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 SM16LC08CE3/TR13 part is unused and in its original packaging.
Return procedure for SM16LC08CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM16LC08CE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
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
-
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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