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Vishay General Semiconductor - Diodes Division SMA5J9.0CA-E3/5A
- Part No.:
- SMA5J9.0CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0CA-E3/5A.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,956
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Product details
Overview
SMA5J9.0CA-E3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage (VC) at 5.0 A peak pulse current, and 500 W peak pulse power rating - enabling robust protection of automotive sensor interfaces and industrial I/O circuits against lightning-induced transients and inductive switching spikes.
For engineers reviewing the SMA5J9.0CA-E3/5A datasheet, SMA5J9.0CA-E3/5A pinout, SMA5J9.0CA-E3/5A application, or SMA5J9.0CA-E3/5A equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, JEDEC-compliant thermal derating curves, RoHS-compliant packaging details, and AEC-Q101-qualified alternatives - all specific to the SMA5J9.0CA-E3/5A variant with E3/5A tape-and-reel delivery.
Technical Context
The SMA5J9.0CA-E3/5A operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, critical for consistent clamping under repetitive 10/1000 μs surges up to 500 W.
Thermally, it exhibits RθJA = 80 °C/W (typ.) and RθJL = 25 °C/W (typ.), with maximum junction temperature of +150 °C and operation down to –55 °C. Mounting on 5.0 mm × 5.0 mm copper pads is required to sustain rated IPPM per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below circuit operating voltage. |
| VBR (min/max) | 10.0 V / 11.1 V - Breakdown occurs within this range at 1 mA test current; defines precise turn-on threshold for bidirectional protection. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on protected downstream ICs. |
| PPPM | 500 W - Peak pulse power handling capability; enables survival of high-energy transients like ISO 7637-2 Pulse 5a. |
| IPPM | 5.0 A - Peak pulse current corresponding to VC; used with PCB trace impedance to estimate actual clamping performance. |
| TJ Range | –55 °C to +150 °C - Full industrial and automotive ambient operating range; supports under-hood and factory-floor deployment. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint; compatible with standard SMT reflow profiles (MSL Level 1, 260 °C peak). |
Pinout & Package
Package: SMA (DO-214AC), bidirectional device - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; voltage clamping occurs across terminals regardless of polarity - eliminates orientation concerns during placement. |
| Case (body) | Thermal and mechanical interface | Plastic body provides UL 94 V-0 flammability rating; thermal path relies on copper pad area (5.0 mm × 5.0 mm minimum) for RθJA compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN bus, RS-485, sensor bridges) without polarity constraints. |
| 500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line) and ISO 7637-2 Pulse 5a (75 V/300 ms) compliance when properly mounted. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic interfacing with 9 V supply rails. |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; SMA5J9.0CA-E3/5A itself is commercial-grade but shares identical die and construction. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking requirements and simplifies SMT line integration. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp ±200 V transients. Use Value: Prevents latch-up or gate oxide damage in 12-bit SAR ADCs by limiting voltage to ≤15.4 V during 5 A surge events. |
Use Scenario: Shielding 24 V digital input modules from relay coil flyback and field wiring ESD in PLC backplanes. IC Role / Device Role / Timing Role: Primary surge limiter on dry-contact input lines, positioned before optocoupler input stage. Use Value: Maintains functional safety integrity by ensuring <1 μA leakage at 24 V nominal, while surviving repeated 500 W surges. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Guarding RS-485 transceivers in base station remote radio units connected to outdoor cabling. IC Role / Device Role / Timing Role: Common-mode TVS across differential pair (A/B) referenced to ground, absorbing induced lightning surges. Use Value: Achieves >30 kV ESD contact immunity (IEC 61000-4-2) and clamps common-mode transients to <16 V, preserving signal integrity. |
Use Scenario: Safeguarding USB 2.0 D+/D– lines in smart home hubs against human-body-model ESD and hot-plug voltage spikes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at USB connector, minimizing stub length. Use Value: Limits junction capacitance to <100 pF (typ. at 0 V), preventing signal rise-time degradation beyond USB 2.0 specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and SMA package; same thermal and clamping performance. | No difference in circuit design or layout; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Direct drop-in replacement for SMA5J9.0CA-E3/5A where halogen-free bill-of-materials is required. |
| SMA5J9.0CAHE3_A/I | AEC-Q101 qualified version with identical VWM, VBR, VC, and PPPM; includes extended reliability testing (HTOL, TC, UHAST). | Required for automotive ECUs, ADAS sensors, and other mission-critical systems demanding automotive-grade qualification. | Select SMA5J9.0CAHE3_A/I when automotive qualification is mandatory; otherwise, SMA5J9.0CA-E3/5A suffices for commercial/industrial use. |
Compared with SMA5J9.0CA-M3/5A, the SMA5J9.0CA-E3/5A offers standard RoHS compliance without halogen-free constraint; compared with SMA5J9.0CAHE3_A/I, it lacks AEC-Q101 validation but retains identical electrical performance and lower cost for non-automotive designs.
Availability
SMA5J9.0CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply, long-term obsolescence management, and full traceability through J-STD-033-compliant handling.
Supply support for SMA5J9.0CA-E3/5A 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-power-density solutions.
The SMA5J series targets high-energy transient suppression in space-constrained surface-mount applications, delivering 500 W surge capability in the compact SMA (DO-214AC) package for automotive, industrial, and communications systems.
FAQ
What is the polarity configuration of SMA5J9.0CA-E3/5A?
The SMA5J9.0CA-E3/5A is a bidirectional TVS diode with symmetrical terminal behavior - neither end is marked as anode or cathode. This allows installation without orientation concern on AC-coupled or floating signal paths, unlike unidirectional variants such as SMA5J9.0A which require correct cathode alignment.
Does SMA5J9.0CA-E3/5A meet AEC-Q101 qualification?
No, SMA5J9.0CA-E3/5A is a commercial-grade part. However, the functionally identical SMA5J9.0CAHE3_A/I variant is AEC-Q101 qualified and shares the same electrical characteristics, package, and pinout - making it the designated choice for automotive applications requiring qualification.
What is the maximum clamping voltage for SMA5J9.0CA-E3/5A under surge conditions?
The SMA5J9.0CA-E3/5A clamps to a maximum of 15.4 V when subjected to a 10/1000 μs waveform with 5.0 A peak pulse current (IPPM). This value is guaranteed per the datasheet's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMA5J9.0CA-E3/5A be used in place of SMA5J9.0A in a design?
No - SMA5J9.0CA-E3/5A is bidirectional while SMA5J9.0A is unidirectional. Substituting them requires verifying circuit polarity: SMA5J9.0A must be oriented with its cathode band toward the protected side, whereas SMA5J9.0CA-E3/5A has no polarity. Using the wrong type risks failure to clamp in one direction.
What is the thermal resistance and mounting requirement for SMA5J9.0CA-E3/5A?
The SMA5J9.0CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W, measured when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Deviation from this pad layout invalidates the rated 500 W pulse power and may cause thermal runaway during repeated surges.
SMA5J9.0CA-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 32.5A
- Power - Peak Pulse:
- 500W
- 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:
- DO-214AC (SMA)
SMA5J9.0CA-E3/5A FAQ
1.How can I place an order for SMA5J9.0CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0CA-E3/5A 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 SMA5J9.0CA-E3/5A reliable?
The price and inventory of SMA5J9.0CA-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0CA-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J9.0CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0CA-E3/5A?
SMA5J9.0CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0CA-E3/5A 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 SMA5J9.0CA-E3/5A?
For technical support, including SMA5J9.0CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J9.0CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0CA-E3/5A 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 SMA5J9.0CA-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J9.0CA-E3/5A?
All SMA5J9.0CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0CA-E3/5A, 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 SMA5J9.0CA-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J9.0CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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