My Inquiry
My Account
Microchip Technology SMDA15C-7E3/TR13
- Part No.:
- SMDA15C-7E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA15C-7E3/TR13.pdf
- Description:
- TVS DIODE 15VWM 30VC 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,847
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMDA15C-7E3/TR13 from Diodes Incorporated is a 7-channel bidirectional transient voltage suppressor (TVS) array in SO-8 package, rated for 300 W peak pulse power (8/20 µs), 15 V standoff voltage (VWM), and clamping voltage of 24 V at 1 A. It protects I/O transceivers, microprocessors, and memory interfaces against ESD per IEC 61000-4-2, EFT per IEC 61000-4-4, and lightning-induced surges.
For engineers reviewing the SMDA15C-7E3/TR13 datasheet, SMDA15C-7E3/TR13 pinout, SMDA15C-7E3/TR13 application, or SMDA15C-7E3/TR13 equivalent, key selection criteria include VWM ≥ circuit operating voltage, low clamping ratio (VC/VBR = 24/16.7 ≈ 1.44), sub-70 pF line capacitance at 1 MHz, and SO-8 thermal/mounting compatibility with board-level surge protection layouts.
Technical Context
This TVS array integrates seven identical, symmetrical, bidirectional avalanche diode pairs in a single SO-8 package, each channel providing common-mode and differential-mode transient suppression. Its breakdown voltage is 16.7 V (min) to 18.5 V (max) at 1 mA, with clamping voltage specified at both 1 A (24 V max) and 5 A (30 V max) for robust surge handling across varying current magnitudes.
The device operates from –55 °C to +150 °C and exhibits a positive temperature coefficient of VBR (+11 mV/°C), ensuring stable breakdown behavior under thermal stress. Leakage current remains ≤1 µA at 15 V standoff, supporting low-power interface integrity without signal loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 15 V - Maximum continuous DC or RMS operating voltage the protected line can sustain without triggering conduction |
| VBR @1 mA | 16.7 V (min) - Ensures reliable turn-on above normal signal swing while avoiding false triggering |
| VC @1 A | 24 V (max) - Limits transient voltage seen by downstream ICs during 1 A surge, preserving TTL/CMOS logic thresholds |
| VC @5 A | 30 V (max) - Maintains safe clamping under higher-energy 8/20 µs surges typical of EFT and induced lightning events |
| Capacitance @1 MHz | 70 pF (max) - Low enough to avoid signal integrity degradation on high-speed data lines (e.g., USB 2.0, RS-485) |
| Peak Pulse Power | 300 W (8/20 µs) - Supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity testing compliance |
| Operating Temp | –55 °C to +150 °C - Enables use in automotive engine control units and industrial motor drives |
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 | Anode of Channel 1 | Connects to first protected data line; forms one side of bidirectional clamp pair with Pin 2 |
| 2 | Cathode of Channel 1 | Common cathode node shared with Pins 4, 6, 8 - ties all channels to ground reference plane |
| 3 | Anode of Channel 2 | Second protected line input; symmetric structure ensures equal clamping in both directions |
| 4 | Cathode of Channel 2 | Shared cathode node - minimizes ground path inductance for multi-line surge current return |
| 5 | Anode of Channel 3 | Third protected line; pin assignment follows linear channel sequence (Ch1–Ch7 on Pins 1,3,5,7,8,6,4) |
| 6 | Cathode of Channel 3 | Shared cathode - enables compact PCB layout with single ground pour beneath all cathodes |
| 7 | Anode of Channel 4 | Fourth protected line; SO-8 layout supports 4 anodes on odd pins, 4 cathodes on even pins (Pins 2,4,6,8) |
| 8 | Cathode of Channel 4 / Anode of Channel 5 | Multi-function terminal: cathode for Ch4, anode for Ch5 - enables 7-channel density in 8-pin package |
Key Features
| Feature | Design Value |
|---|---|
| 7-channel bidirectional protection | Single SO-8 device replaces seven discrete TVS diodes, reducing BOM count and PCB area by >60% |
| IEC 61000-4-2 ESD rating | ±15 kV air, ±8 kV contact - exceeds industrial and telecom immunity requirements without external shielding |
| Low 70 pF line capacitance | Preserves signal rise time on 10–50 Mbps interfaces (e.g., CAN, RS-232, GPIO) without added jitter or reflection |
| 150 °C operating max temp | Supports placement near heat-generating components (e.g., power MOSFETs, DC-DC converters) without derating |
| Tape-and-reel packaging | TR13 variant supplied on 13-inch reel (2500 pcs) - compatible with automated SMT pick-and-place systems |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Protecting 24 V digital input channels from load dump and relay coil flyback in programmable logic controllers. IC Role / Device Role / Timing Role: Board-level transient suppressor placed directly at connector entry point before signal conditioning circuitry. Use Value: Clamps 30 V transients to <30 V within nanoseconds, preventing latch-up in optocoupler input stages and extending system MTBF. | Use Scenario: Shielding LIN bus transceivers and sensor inputs from battery voltage spikes and ESD during assembly/handling. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on each LIN data line (LIN_H/L), referenced to chassis ground. Use Value: 70 pF capacitance avoids LIN timing distortion (bit rate 19.2 kbps), while 300 W rating absorbs ISO 7637-2 Pulse 1/2b surges. |
| Medical Patient Monitor Ports | Point-of-Sale Terminal Interfaces |
Use Scenario: Safeguarding isolated USB and RS-232 ports connecting to external diagnostic peripherals in Class II medical devices. IC Role / Device Role / Timing Role: Primary ESD barrier between unshielded external cables and internal isolated UART transceivers. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air) without increasing creepage distance, maintaining 4 kV reinforced isolation integrity. | Use Scenario: Protecting serial, USB, and GPIO lines on retail payment terminals exposed to frequent operator ESD events. IC Role / Device Role / Timing Role: Front-end TVS array on all user-accessible ports, mounted adjacent to connectors with short trace routing. Use Value: Sub-1 µA leakage at 15 V prevents false wake-up in battery-backed sleep modes, extending terminal uptime between charges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMDA15C-7 | No "E3/TR13" suffix - standard SO-8, tape-and-reel not specified; same electrical specs and SO-8 footprint | Same board-level protection function; differs only in packaging format (bulk vs. TR13 reel) | Select SMDA15C-7E3/TR13 when automated SMT production requires EIA-481-1-A compliant 13″ reels (2500 pcs) |
| SMAJ15A | Single-line unidirectional TVS; 400 W rating; 15 V VWM; 24.4 V VC@1 A; DO-214AC package | Requires 7 separate placements and routing; no shared cathode; higher layout complexity and inductance | Choose SMAJ15A only if discrete placement is required for thermal isolation or asymmetric protection schemes |
Compared with SMDA15C-7 and SMAJ15A, the SMDA15C-7E3/TR13 delivers integrated 7-line protection with optimized ground inductance and automated assembly readiness - critical for high-volume industrial and automotive PCBs where layout density and manufacturing efficiency are prioritized.
Availability
SMDA15C-7E3/TR13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical patient monitor ports requiring stable component supply, consistent surge performance, and long-term obsolescence management.
Supply support for SMDA15C-7E3/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 analog ICs, specializing in protection, signal integrity, and power management solutions for industrial, automotive, and computing markets.
The SMDAxxC-7 series was developed specifically for high-density board-level ESD and surge protection of multi-line interfaces, balancing low capacitance, precise VWM, and robust 300 W pulse handling in standard SO-8 packaging.
FAQ
What is the standoff voltage (VWM) of the SMDA15C-7E3/TR13?
The SMDA15C-7E3/TR13 has a standoff voltage (VWM) of 15 V, meaning it remains non-conductive up to this DC or RMS voltage level. This value is selected to match or exceed the peak operating voltage of protected circuits such as 12 V or 15 V I/O buses, ensuring no false triggering during normal operation while providing margin for ripple and tolerance.
Does the SMDA15C-7E3/TR13 meet IEC 61000-4-2 ESD requirements?
Yes, the SMDA15C-7E3/TR13 is designed and characterized to meet IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact). Its bidirectional clamping action and fast response time (<1 ns) suppress ESD events before they reach sensitive downstream components like microcontrollers or transceivers, making it suitable for end-equipment certification.
What is the maximum clamping voltage of the SMDA15C-7E3/TR13 at 5 A?
The SMDA15C-7E3/TR13 has a maximum clamping voltage (VC) of 30 V at 5 A for an 8/20 µs surge waveform. This ensures that even under higher-energy transients-such as those from electrical fast transients (EFT) or secondary lightning coupling-the protected circuit sees no more than 30 V, safeguarding 3.3 V, 5 V, and 12 V logic interfaces.
Is the SMDA15C-7E3/TR13 compatible with automated SMT assembly?
Yes, the SMDA15C-7E3/TR13 is supplied in EIA-481-1-A compliant tape-and-reel format on 13-inch reels containing 2,500 units. Its SO-8 gull-wing lead geometry and standardized land pattern align with IPC-7351B, enabling reliable placement using standard pick-and-place equipment without modification.
How does the SMDA15C-7E3/TR13 differ from the SMDA15C-7 part number?
The SMDA15C-7E3/TR13 is functionally identical to SMDA15C-7 in electrical and thermal specifications, but includes explicit packaging and reel configuration identifiers: "E3" denotes the Diodes Incorporated date code format, and "TR13" specifies 13-inch tape-and-reel packaging (2,500 pcs). The base SMDA15C-7 may be offered in bulk or alternate reel sizes.
SMDA15C-7E3/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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 30V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 70pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SMDA15C-7E3/TR13 FAQ
1.How can I place an order for SMDA15C-7E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA15C-7E3/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 SMDA15C-7E3/TR13 reliable?
The price and inventory of SMDA15C-7E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA15C-7E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA15C-7E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA15C-7E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA15C-7E3/TR13?
SMDA15C-7E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA15C-7E3/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 SMDA15C-7E3/TR13?
For technical support, including SMDA15C-7E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA15C-7E3/TR13 requirements.
6.How does Aetrix verify that SMDA15C-7E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA15C-7E3/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 SMDA15C-7E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA15C-7E3/TR13?
All SMDA15C-7E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA15C-7E3/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 SMDA15C-7E3/TR13 part is unused and in its original packaging.
Return procedure for SMDA15C-7E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA15C-7E3/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
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…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
