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Diodes Incorporated SMAJ5.0CA-13-F
- Part No.:
- SMAJ5.0CA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ5.0CA-13-F.pdf
- Description:
- TVS DIODE 5VWM 9.2VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:174,893
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Product details
Overview
SMAJ5.0CA-13-F from Diodes Incorporated is a bidirectional 400W transient voltage suppressor (TVS) diode in SMA package, designed for clamping ESD and surge transients on data lines and power rails. It features a 5.0V reverse standoff voltage, 9.2V max clamping voltage at 43.5A peak pulse current, and fast response time under 1ns. Used in USB ports, automotive infotainment interfaces, and industrial I/O protection circuits.
For engineers reviewing the SMAJ5.0CA-13-F datasheet, SMAJ5.0CA-13-F pinout, SMAJ5.0CA-13-F application, or SMAJ5.0CA-13-F equivalent, key selection criteria include clamping voltage margin relative to system operating voltage, peak pulse current capability under 8.3ms waveform, unidirectional vs. bidirectional polarity requirements, and RoHS-compliant lead-free plating for reflow compatibility.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage specified at 6.40–7.25V (min/max) under 10mA test current. Its clamping behavior is characterized by a low dynamic impedance that limits voltage overshoot during 400W transient events.
Thermal performance is defined by a -55°C to +150°C operating junction temperature range and 1.0W steady-state power dissipation at TL = +75°C. The device uses glass-passivated die construction and meets J-STD-020 moisture sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 8.3ms half-sine surges without failure |
| Reverse Standoff Voltage | 5.0V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage | 9.2V @ 43.5A - maximum voltage seen by protected circuit during rated surge |
| Breakdown Voltage | 6.40–7.25V @ 10mA - ensures reliable conduction onset above normal operating voltage |
| Leakage Current | 800µA @ 5.0V - minimal loading on 5V logic or interface lines at standby |
| Package | SMA - surface-mount outline compatible with IPC-7351B standard pad layout |
| RoHS Compliance | Lead-free, halogen-free, antimony-free - meets EU Directive 2015/863/EU |
Pinout & Package
Two-terminal bidirectional TVS in SMA package (JEDEC DO-214AC), with cathode band omitted per bidirectional configuration. Terminals are matte tin-plated for solderability per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | Connects to line being protected; conducts when voltage exceeds +VBR |
| Cathode | Transient current entry (negative polarity) | Connects to line being protected; conducts when voltage falls below –VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 5V buses |
| Glass-passivated die | Improves long-term reliability and stability of VBR under thermal cycling and humidity |
| Bidirectional symmetry | Protects AC-coupled or dual-polarity signals (e.g., RS-485, CAN, USB D+/D−) without polarity concerns |
| Fast response time | Sub-nanosecond turn-on limits voltage overshoot during ESD events per IEC 61000-4-2 |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cost and risk of popcorning |
Applications
| USB 2.0 Data Line Protection | Automotive Infotainment Display Interface |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 peripherals from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional clamping device placed directly at connector, shunting transients to ground before reaching PHY IC. Use Value: Maintains signal integrity with <0.5pF typical capacitance while clamping to ≤9.2V - well below USB 2.0 receiver absolute maximum rating of 3.6V (VDD+0.3V). | Use Scenario: Safeguarding LVDS or FPD-Link II video data lanes between head unit and TFT display in vehicles. IC Role / Device Role / Timing Role: Transient suppression element on high-speed differential pairs exposed to load dump and ISO 7637-2 pulses. Use Value: Withstands 43.5A peak pulse current and clamps to 9.2V, preventing latch-up or damage to serializer/deserializer ICs operating at 3.3V nominal supply. |
| Industrial PLC Digital Input Module | Smart Meter Communication Port |
Use Scenario: Protecting 24V DC digital input channels from field-induced surges and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminal, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Clamps 8.3ms surges up to 400W without degradation, enabling compliance with IEC 61000-4-4 (electrical fast transients) and IEC 61000-4-5 (surge immunity). | Use Scenario: Securing RS-485 or M-Bus communication ports in electricity/water meters against lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed across A/B lines to limit common-mode and differential-mode transients before transceiver IC. Use Value: Symmetrical clamping ensures equal protection regardless of surge polarity; 9.2V VC allows safe operation with 5V transceivers having ±12V common-mode range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-13-F | Unidirectional version; same VRWM, VC, PPK, but conducts only for positive transients | Requires external polarity coordination; unsuitable for AC or bidirectional signal lines | Select only when protecting DC rails with known polarity and no negative excursions |
| SMBJ5.0CA | Same electrical specs but SMB package (higher PPK = 600W); 2.5mm × 4.5mm footprint vs. SMA's 2.9mm × 4.6mm | Offers higher surge margin but requires PCB layout change; not drop-in compatible | Choose when surge threat level exceeds 400W or existing design has margin for larger footprint |
Compared with SMAJ5.0A-13-F, the bidirectional variant eliminates polarity dependency in differential or AC-coupled paths; compared with SMBJ5.0CA, it trades 200W peak power headroom for smaller board area and lower assembly cost in space-constrained 5V interface designs.
Availability
SMAJ5.0CA-13-F is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment displays, and industrial PLC digital input modules requiring stable component supply and full traceability.
Supply support for SMAJ5.0CA-13-F 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability board-level surge and ESD protection in automotive, industrial, and consumer electronics where compact size and repeatable clamping performance are critical.
FAQ
What does the "C" suffix in SMAJ5.0CA-13-F indicate?
The "C" denotes bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative transients. Unlike unidirectional versions (e.g., SMAJ5.0A-13-F), it has no cathode band marking and functions identically in either orientation across the protected line pair.
Can SMAJ5.0CA-13-F be used on a 3.3V system?
Yes, but with careful design consideration: its 5.0V standoff voltage provides adequate margin above 3.3V nominal, and 9.2V clamping voltage remains within the absolute maximum ratings of most 3.3V transceivers. Ensure system-level testing confirms no false triggering during normal operation or hot-swap events.
How does the SMA package compare to SMB in surge handling?
The SMA package supports 400W peak pulse power, while the physically larger SMB package (e.g., SMBJ5.0CA) supports 600W. Thermal resistance and silicon die size differ - SMAJ5.0CA-13-F achieves its rating with optimized die-to-package thermal path, verified per JEDEC JESD22-A114E ESD testing and IEC 61000-4-5 surge waveforms.
Is this part qualified for automotive use?
The standard SMAJ5.0CA-13-F is not AEC-Q200 qualified. Diodes offers an automotive-grade variant, SMAJ5.0CAQ-13-F, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities. For automotive applications, specify the "Q" suffix version.
SMAJ5.0CA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 43.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ5.0CA-13-F FAQ
1.How can I place an order for SMAJ5.0CA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ5.0CA-13-F 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 SMAJ5.0CA-13-F reliable?
The price and inventory of SMAJ5.0CA-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ5.0CA-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ5.0CA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ5.0CA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ5.0CA-13-F?
SMAJ5.0CA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ5.0CA-13-F 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 SMAJ5.0CA-13-F?
For technical support, including SMAJ5.0CA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ5.0CA-13-F requirements.
6.How does Aetrix verify that SMAJ5.0CA-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ5.0CA-13-F 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 SMAJ5.0CA-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ5.0CA-13-F?
All SMAJ5.0CA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ5.0CA-13-F, 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 SMAJ5.0CA-13-F part is unused and in its original packaging.
Return procedure for SMAJ5.0CA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ5.0CA-13-F Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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