My Inquiry
My Account
Microchip Technology SMDA15C-5E3/TR13
- Part No.:
- SMDA15C-5E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA15C-5E3/TR13.pdf
- Description:
- TVS DIODE 15VWM 30VC 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,674
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMDA15C-5E3/TR13 from Microsemi (now Microchip Technology) is a 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 five I/O lines in industrial and telecom interface circuits against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges.
For engineers reviewing the SMDA15C-5E3/TR13 datasheet, SMDA15C-5E3/TR13 pinout, SMDA15C-5E3/TR13 application, or SMDA15C-5E3/TR13 equivalent, key selection criteria include VWM ≥ circuit operating voltage, clamping performance under 1–5 A surge current, SO-8 thermal and layout compatibility, and leakage current ≤1 µA at 15 V.
Technical Context
This TVS array uses silicon avalanche diode technology with five symmetrical bidirectional channels sharing a common GND terminal. Each channel provides low-capacitance (50 pF @ 0 V, 1 MHz) protection without signal distortion on high-speed data lines.
It operates across –55 °C to +150 °C and maintains stable breakdown voltage (16.7 V min, 18.5 V max @ 1 mA) with a temperature coefficient of +13 mV/°C - enabling predictable clamping behavior in thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM Standoff Voltage | 15.0 V - maximum continuous working voltage before conduction; must match or exceed circuit's peak DC or AC signal voltage |
| VBR Breakdown Voltage | 16.7–18.5 V @ 1 mA - precise avalanche initiation threshold ensuring reliable turn-on during transients |
| VC Clamping Voltage | 24.0 V @ 1 A, 30.0 V @ 5 A - limits voltage seen by protected ICs during surge events per IEC 61000-4-2/4-4 |
| IPP Peak Pulse Power | 300 W (8/20 µs waveform) - sustains high-energy surges without failure, validated per Figure 1 in MSC0331A.PDF |
| CJ Junction Capacitance | 50 pF @ 0 V, 1 MHz - low enough for USB 2.0, RS-485, CAN, and other <10 Mbps interfaces |
| ID Leakage Current | ≤1 µA @ 15 V - negligible standby loading on signal lines, preserving logic thresholds and power integrity |
Pinout & Package
SO-8 surface-mount package with gull-wing leads, 1.27 mm pitch, and pin #1 identified by dot marking. Total weight ≈ 0.066 g. Compliant with EIA-481-1-A tape-and-reel packaging (13″ reel, 2500 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Line 1 Anode/Cathode | Bidirectional ESD path for first protected I/O line; symmetric avalanche structure |
| 2 | Line 2 Anode/Cathode | Independent bidirectional path for second I/O line; electrically isolated from others |
| 3 | Line 3 Anode/Cathode | Third dedicated protection channel; shares no internal connection with pins 1–2 or 4–5 |
| 4 | GND | Common cathode return for all five channels; must be low-inductance PCB connection to system ground |
| 5 | Line 4 Anode/Cathode | Fourth independent bidirectional path; routed separately to avoid coupling |
| 6 | N.C. | No internal connection; left floating or tied to GND only if required by board layout constraints |
| 7 | N.C. | No internal connection; unused terminal per SO-8 footprint and device internal configuration |
| 8 | Line 5 Anode/Cathode | Fifth and final protected line; completes full 5-line board-level I/O protection set |
Key Features
| Feature | Design Value |
|---|---|
| 5-channel bidirectional protection | Enables single-device safeguarding of multi-line interfaces (e.g., RS-485 bus + control signals) without discrete diode arrays |
| 300 W peak pulse rating (8/20 µs) | Withstands repeated 1 kV ESD contact discharges and 4 kV EFT bursts without degradation |
| Low 50 pF capacitance per line | Preserves signal edge rate and eye diagram integrity on 10–25 Mbps digital buses |
| –55 °C to +150 °C operation | Validated for under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| IEC 61000-4-2 Level 4 compliance | Guarantees 15 kV air / 8 kV contact ESD immunity when properly mounted and grounded |
Applications
| Industrial RS-485 Networks | Automotive Body Control Modules |
|---|---|
Use Scenario: Protecting half-duplex RS-485 transceivers (e.g., MAX13487, SN65HVD72) in factory automation PLCs exposed to cable-induced surges. IC Role / Device Role: Board-level TVS clamp placed directly at connector entry point, shunting transients before reaching transceiver ESD structures. Use Value: Prevents latch-up or permanent damage to transceivers during 4 kV EFT bursts while maintaining <1% signal attenuation at 10 Mbps. | Use Scenario: Safeguarding LIN bus and sensor I/O lines (e.g., temperature, position) in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary transient suppression element for low-speed vehicle networks operating up to 20 kbps. Use Value: Delivers 15 kV ESD immunity per IEC 61000-4-2 and clamps induced spikes to <30 V, keeping microcontroller GPIOs within safe operating area. |
| Point-of-Sale Terminal Interfaces | Medical Patient Monitor Ports |
Use Scenario: Shielding USB 2.0 D+/D−, UART, and GPIO lines in retail kiosks handling frequent operator ESD events. IC Role / Device Role: First-line defense at external ports, reducing stress on internal level-shifters and USB PHYs. Use Value: 50 pF capacitance avoids USB signal integrity loss; 24 V clamping ensures downstream 3.3 V logic remains undamaged during 8 kV contact discharge. | Use Scenario: Protecting isolated analog front-end inputs (ECG, SpO₂) and serial diagnostic ports in Class II medical devices requiring IEC 60601-1-2 compliance. IC Role / Device Role: Secondary surge barrier after isolation barriers, suppressing post-isolation transients entering sensitive analog paths. Use Value: Sub-1 µA leakage prevents DC offset drift in µV-level biopotential amplifiers; 150 °C rating supports sterilization cycle thermal profiles. |
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-5/TR7 | Same electrical specs and SO-8 package; differs only in packaging format (7″ reel, 750 pcs vs. 13″ reel, 2500 pcs) | Identical protection function; selected for smaller batch production or prototyping runs | Choose SMDA15C-5E3/TR13 for high-volume manufacturing; SMDA15C-5/TR7 for evaluation or low-MOQ builds |
| SP1003-010 | 5-channel unidirectional array (not bidirectional); 10 V VWM, 15 V VC @ 1 A; 30 pF capacitance | Requires separate GND and VCC connections per channel; unsuitable for AC-coupled or true bidirectional lines | Select only for DC-biased interfaces where polarity is fixed and lower clamping voltage justifies added routing complexity |
Compared with SMDA15C-5/TR7, the SMDA15C-5E3/TR13 offers identical protection performance with optimized logistics for volume production. Against SP1003-010, it provides native bidirectionality and higher VWM, simplifying design for RS-485, CAN, or USB while maintaining robust 300 W surge handling.
Availability
SMDA15C-5E3/TR13 is available at Aetrix Electronics and suitable for industrial communication gateways, automotive body electronics, and medical I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMDA15C-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 TVS array series was engineered specifically for board-level ESD/EFT protection of multi-line digital interfaces, balancing low capacitance, precise clamping, and wide temperature resilience in compact SO-8 form.
FAQ
What is the standoff voltage rating of the SMDA15C-5E3/TR13?
The SMDA15C-5E3/TR13 has a standoff voltage (VWM) of 15.0 V, meaning it remains non-conductive up to this DC or peak AC voltage. This value ensures compatibility with 12 V nominal systems and 3.3 V/5 V logic interfaces when derated per IEC 61000-4-2 guidelines. The SMDA15C-5E3/TR13 is designed to activate only during transient overvoltage events exceeding its breakdown threshold of 16.7 V.
Does the SMDA15C-5E3/TR13 support bidirectional signal lines like RS-485 or CAN?
Yes, the SMDA15C-5E3/TR13 integrates five fully bidirectional TVS elements, each capable of clamping positive and negative transients symmetrically. Its circuit diagram confirms shared GND with independent anode/cathode pairs per line - making it suitable for AC-coupled or differential buses including RS-485, CAN, and LVDS. The SMDA15C-5E3/TR13 does not require external biasing or polarity assignment.
What is the clamping voltage of the SMDA15C-5E3/TR13 at 5 A surge current?
The SMDA15C-5E3/TR13 clamps to a maximum of 30.0 V when subjected to a 5 A (8/20 µs) surge current, as specified in the Electrical Characteristics table of MSC0331A.PDF. This value ensures downstream 3.3 V or 5 V ICs remain within absolute maximum ratings during multi-pulse EFT events. The SMDA15C-5E3/TR13 maintains this performance across its full operating temperature range.
Is the SMDA15C-5E3/TR13 compliant with IEC 61000-4-2 ESD testing?
Yes, the SMDA15C-5E3/TR13 is explicitly rated for IEC 61000-4-2 Level 4 ESD immunity (±15 kV air, ±8 kV contact) per its product description and test validation in MSC0331A.PDF. When implemented with proper PCB layout - including short traces to GND and low-inductance grounding - the SMDA15C-5E3/TR13 reliably diverts ESD energy away from sensitive transceivers and microcontrollers.
What package type and pin count does the SMDA15C-5E3/TR13 use?
The SMDA15C-5E3/TR13 uses an SO-8 surface-mount package with eight gull-wing leads and a 1.27 mm pitch. Pin #1 is marked by a dot on the top surface. The device implements five protected lines plus one common GND and two no-connect terminals, matching the mechanical drawing in MSC0331A.PDF. The SMDA15C-5E3/TR13 is not compatible with SOIC-8 footprints requiring all eight pins to be functional.
SMDA15C-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):
- 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:
- 50pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SMDA15C-5E3/TR13 FAQ
1.How can I place an order for SMDA15C-5E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA15C-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 SMDA15C-5E3/TR13 reliable?
The price and inventory of SMDA15C-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 SMDA15C-5E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMDA15C-5E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA15C-5E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA15C-5E3/TR13?
SMDA15C-5E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA15C-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 SMDA15C-5E3/TR13?
For technical support, including SMDA15C-5E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA15C-5E3/TR13 requirements.
6.How does Aetrix verify that SMDA15C-5E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMDA15C-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 SMDA15C-5E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMDA15C-5E3/TR13?
All SMDA15C-5E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMDA15C-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 SMDA15C-5E3/TR13 part is unused and in its original packaging.
Return procedure for SMDA15C-5E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA15C-5E3/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…
