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Vishay General Semiconductor - Diodes Division SMA5J9.0A-E3/61
- Part No.:
- SMA5J9.0A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0A-E3/61.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,052
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Product details
Overview
SMA5J9.0A-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage at 5.0 A peak pulse current (IPPM), 500 W peak pulse power (PPPM), and 1.0 µA max reverse leakage at VWM.
For engineers reviewing the SMA5J9.0A-E3/61 datasheet, SMA5J9.0A-E3/61 pinout, SMA5J9.0A-E3/61 application, or SMA5J9.0A-E3/61 equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal resistance data, AEC-Q101 qualification status, and real-world protection use cases for automotive and industrial electronics.
Technical Context
The SMA5J9.0A-E3/61 operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transients. Its clamping behavior is defined by a 10/1000 µs waveform, with 15.4 V VC limiting surge energy delivered to downstream ICs during ESD or load-switching events.
Thermal performance is characterized by RθJA = 80 °C/W and RθJL = 25 °C/W, supporting operation from –55 °C to +150 °C. The cathode band marking confirms polarity, and the device meets J-STD-020 MSL Level 1 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets safe DC rail margin. |
| VBR (min/max) | 10.0 V / 11.1 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold consistency. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on protected circuitry. |
| PPPM | 500 W - Peak pulse power handling capability; enables suppression of high-energy transients without failure. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off voltage; ensures minimal quiescent power loss in battery-powered systems. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive and high-ambient industrial deployment. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal layout requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or lower-potential node in unidirectional TVS configuration. | Provides return path for surge current when cathode is tied to protected line; polarity must match system grounding scheme. |
| Cathode | Current exit terminal in forward bias; marked with black band; connected to protected line (e.g., 9 V rail or sensor output). | Defines directionality: clamps positive transients above VWM to ~15.4 V while blocking normal 9 V operation; incorrect orientation causes open-circuit failure. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables automated placement on space-constrained PCBs; compatible with standard SMT reflow profiles up to 260 °C peak. |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime; improves reliability vs. epoxy-passivated alternatives. |
| AEC-Q101 qualified option | Available as SMA5J9.0AHE3_A variant; validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
| MSL Level 1 rating | Permits unlimited floor life and single-reflow processing without baking; reduces manufacturing overhead in high-volume production. |
| 500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 12 V systems with margin; eliminates need for cascaded protection stages. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 9 V supply rail in body control modules against load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 9 V rail and chassis ground to clamp positive spikes above 15.4 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers operating at 9 V nominal. |
Use Scenario: Safeguarding analog output (0–10 V) of pressure sensors in factory automation equipment. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to absorb ESD events and cable-induced surges. Use Value: Maintains signal integrity below 15.4 V clamping level, preserving 12-bit ADC resolution and avoiding false fault triggers. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
|
Use Scenario: Securing 9 V input of USB-C PD adapter secondary-side regulation stage against hot-swap transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on input capacitor node to limit voltage overshoot during plug insertion. Use Value: Limits peak stress to <15.4 V, preventing gate oxide rupture in synchronous rectifier MOSFETs rated for 20 V. |
Use Scenario: Protecting -48 V telecom power feeders from lightning-induced surges in remote radio units. IC Role / Device Role / Timing Role: Unidirectional TVS oriented to clamp negative-going transients on the return line relative to chassis ground. Use Value: Withstands 500 W pulses without degradation, meeting GR-1089-CORE Level 3 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0A-M3/61 | Halogogen-free, RoHS-compliant variant with identical electrical specs and thermal performance. | No difference in protection function; selected where halogen-free BOM compliance is mandated (e.g., EU public infrastructure projects). | Choose SMA5J9.0A-M3/61 when environmental compliance requires absence of brominated flame retardants. |
| SMA5J9.0AHE3_A | AEC-Q101 qualified version with extended reliability testing (HTOL, TC, UHAST); same VWM, VBR, VC, PPPM. | Required for automotive applications subject to ISO/TS 16949; not suitable for cost-sensitive consumer designs lacking qualification needs. | Specify SMA5J9.0AHE3_A for under-hood ECUs, ADAS cameras, or any automotive OEM design requiring certified component qualification. |
Compared with SMA5J9.0A-E3/61, the M3 variant adds halogen-free materials without altering surge performance, while the HE3 variant adds automotive qualification rigor-neither changes pinout, footprint, or electrical interface, making both drop-in replacements for their respective compliance domains.
Availability
SMA5J9.0A-E3/61 is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial PLC analog I/O modules, and telecom DC distribution systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J9.0A-E3/61 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 was developed to deliver 500 W transient suppression in the compact SMA package for space-constrained automotive and industrial applications where thermal efficiency and AEC-Q101 compliance are critical.
FAQ
What is the clamping voltage of the SMA5J9.0A-E3/61 and how is it measured?
The SMA5J9.0A-E3/61 has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM), tested using a standardized 10/1000 µs double-exponential waveform. This value represents the highest voltage the device allows across its terminals during a surge event, directly protecting downstream components from overvoltage stress. The SMA5J9.0A-E3/61 maintains this clamping performance across its full operating temperature range.
Is the SMA5J9.0A-E3/61 suitable for automotive applications?
The base SMA5J9.0A-E3/61 is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. For automotive use, Vishay offers the SMA5J9.0AHE3_A variant, which undergoes full AEC-Q101 stress testing. The SMA5J9.0A-E3/61 itself may be used in non-safety-critical automotive subsystems where qualification is not mandated, but design validation remains the customer's responsibility.
How does the polarity marking work on the SMA5J9.0A-E3/61?
The SMA5J9.0A-E3/61 uses a black cathode band to identify the cathode terminal. In unidirectional configuration, the cathode connects to the line being protected (e.g., 9 V rail), and the anode connects to ground. Reversing this connection renders the device non-functional for transient suppression, as it blocks conduction in both directions. The SMA5J9.0A-E3/61 has no marking for bidirectional use-it is strictly unidirectional.
What is the thermal resistance of the SMA5J9.0A-E3/61 and how does it affect PCB layout?
The SMA5J9.0A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and thermal vias. Reducing pad size or omitting thermal relief increases RθJA, risking thermal runaway during high-duty-cycle transients.
Does the SMA5J9.0A-E3/61 meet moisture sensitivity level (MSL) requirements for surface-mount assembly?
Yes, the SMA5J9.0A-E3/61 meets J-STD-020 MSL Level 1 with a maximum reflow peak temperature of 260 °C, meaning it has unlimited floor life and can undergo standard lead-free reflow without preconditioning or baking. This simplifies manufacturing logistics and avoids yield loss from moisture-related popcorning during assembly.
SMA5J9.0A-E3/61 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMA5J9.0A-E3/61 FAQ
1.How can I place an order for SMA5J9.0A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0A-E3/61 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 SMA5J9.0A-E3/61 reliable?
The price and inventory of SMA5J9.0A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J9.0A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0A-E3/61?
SMA5J9.0A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0A-E3/61 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 SMA5J9.0A-E3/61?
For technical support, including SMA5J9.0A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0A-E3/61 requirements.
6.How does Aetrix verify that SMA5J9.0A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0A-E3/61 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 SMA5J9.0A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J9.0A-E3/61?
All SMA5J9.0A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0A-E3/61, 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 SMA5J9.0A-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J9.0A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0A-E3/61 Tags
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