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Vishay General Semiconductor - Diodes Division SMA5J36A-E3/5A
- Part No.:
- SMA5J36A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36A-E3/5A.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J36A-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.1 V clamping voltage (VC) at 8.6 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J36A-E3/5A datasheet, SMA5J36A-E3/5A pinout, SMA5J36A-E3/5A application, or SMA5J36A-E3/5A equivalent, key selection criteria include clamping performance under 8.6 A surge, thermal resistance (RθJA = 80 °C/W), unidirectional polarity marking, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (40.0–44.2 V), it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and long-term reliability under repetitive transients.
Rated for -55 °C to +150 °C junction temperature, it supports high-reliability applications requiring AEC-Q101 qualification (available in HE3/HM3 variants); the SMA5J36A-E3/5A itself is commercial-grade, RoHS-compliant, and meets JESD201 Class 2 whisker resistance with MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (min/max) | 40.0 V / 44.2 V - guaranteed avalanche initiation range at 1 mA test current; ensures consistent turn-on across production lots |
| VC @ IPPM | 58.1 V at 8.6 A - maximum clamped voltage during 10/1000 µs surge; determines worst-case stress on protected ICs |
| PPPM | 500 W - peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges |
| RθJA | 80 °C/W - junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm pads; informs derating above 25 °C ambient |
| IFSM | 40 A - non-repetitive forward surge rating (8.3 ms half-sine); supports inrush current suppression in DC power rails |
| TJ max. | +150 °C - maximum junction temperature; allows operation in under-hood automotive or enclosed industrial enclosures |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band at one end; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; forms series path with cathode during clamping |
| Cathode (banded end) | Reverse-biased terminal | Connected to higher-potential rail (e.g., VCC or signal line); avalanche conduction occurs when VCATHODE – VANODE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over temperature and lifetime |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, load dump) |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without pre-baking; compatible with high-volume SMT assembly |
| Automated placement optimized | Standardized SMA footprint and lead geometry support high-yield pick-and-place at >30,000 UPH |
| RoHS-compliant, halogen-free option available | E3 suffix denotes lead-free, RoHS-compliant construction; M3 suffix adds halogen-free molding compound |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in body control modules against ISO 7637-2 load dump transients up to 60 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND to clamp surges before they reach PMICs or microcontrollers. Use Value: Clamps to 58.1 V at 8.6 A, limiting stress on downstream 36 V-rated input stages while surviving 500 W pulses. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to motor switching noise. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMA5J36A-E3/5A used on supply-side only to suppress positive-going transients on VSENSE rails. Use Value: 40.0–44.2 V VBR aligns with 36 V system nominal, ensuring no false triggering during normal operation while responding in <1 ns. |
| Consumer Power Adapter Input Stage | Telecom DC-DC Converter Input |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters feeding USB-PD or PoE-powered devices. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals to absorb flyback spikes from transformer leakage inductance. Use Value: 500 W PPPM handles repeated 10/1000 µs surges without degradation; RθJA = 80 °C/W enables thermal stability on compact PCBs. | Use Scenario: Input rail protection for isolated DC-DC converters in base station power systems subject to lightning-induced surges. IC Role / Device Role / Timing Role: Placed upstream of primary-side controller IC to prevent latch-up or gate oxide damage from line transients. Use Value: 8.6 A IPPM and 58.1 V VC ensure protected ICs see <60 V stress even during worst-case 1 kV/0.5 Ω IEC 61000-4-5 coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J36AHE3_A/I | AEC-Q101 qualified; identical electrical specs but certified for automotive under-hood use | Required for automotive OEM designs needing PPAP documentation and extended temperature validation | Select SMA5J36AHE3_A/I when qualifying for automotive safety-critical subsystems; SMA5J36A-E3/5A suffices for commercial industrial use |
| SMCJ36A-E3/57T | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VC ratings | Used where higher surge energy (e.g., IEC 61000-4-5 Level 5) or board-level mechanical robustness is required | Choose SMCJ36A-E3/57T if 500 W is insufficient; note larger footprint and different thermal profile (RθJA ≈ 35 °C/W) |
Compared with SMA5J36AHE3_A/I, the SMA5J36A-E3/5A lacks AEC-Q101 certification but offers identical clamping and surge performance at lower cost; versus SMCJ36A-E3/57T, it trades 1500 W capability for 60 % smaller PCB area and tighter thermal constraints.
Availability
SMA5J36A-E3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC-DC converter input applications requiring stable component supply, full traceability, and volume-ready packaging.
Supply support for SMA5J36A-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, TVS devices, and optoelectronics with emphasis on reliability, power density, and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT designs, targeting automotive, industrial, and telecom systems where rapid clamping and repeatable surge endurance are critical.
FAQ
What is the clamping voltage of the SMA5J36A-E3/5A under a 10/1000 µs surge?
The SMA5J36A-E3/5A clamps to a maximum of 58.1 V when subjected to its rated peak pulse current of 8.6 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC standards and represents the worst-case voltage seen by protected circuitry during surge events - critical for verifying margin against downstream IC absolute maximum ratings. The SMA5J36A-E3/5A maintains this clamping performance across its full operating temperature range.
Is the SMA5J36A-E3/5A suitable for automotive applications?
The SMA5J36A-E3/5A is RoHS-compliant and rated for -55 °C to +150 °C operation, but it is not AEC-Q101 qualified. For automotive applications requiring formal qualification (e.g., body control modules or ADAS ECUs), the pin-compatible SMA5J36AHE3_A/I variant must be used. The SMA5J36A-E3/5A remains appropriate for non-safety-critical commercial automotive subsystems where full PPAP documentation is not mandated.
What does the "E3/5A" suffix mean in SMA5J36A-E3/5A?
The "E3" suffix indicates RoHS-compliant, lead-free construction with matte tin-plated leads; "5A" specifies packaging in 13-inch diameter plastic tape and reel, with a base quantity of 7500 units per reel. This format supports high-speed SMT placement and is distinct from the "61" code (7-inch reel, 1800 units). The SMA5J36A-E3/5A uses the same die and electrical characteristics as other SMA5J36A variants - only packaging and compliance differ.
How does the SMA5J36A-E3/5A compare to bidirectional TVS diodes like SMA5J36CA?
The SMA5J36A-E3/5A is unidirectional and features a cathode band for polarity identification, while SMA5J36CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The SMA5J36A-E3/5A has lower leakage (<1.0 µA at 36 V) and supports forward surge current (IFSM = 40 A), making it suitable for DC power rail protection. SMA5J36CA is preferred for AC signal lines or differential buses where polarity reversal occurs.
What PCB layout guidance applies to the SMA5J36A-E3/5A for optimal thermal performance?
For optimal thermal dissipation, the SMA5J36A-E3/5A must be mounted on minimum recommended copper pads: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, per Vishay's datasheet Fig. 2 derating curves. Reducing pad size increases RθJA beyond the rated 80 °C/W, risking thermal runaway during repeated surges. Avoid thermal relief spokes on high-current paths; solid copper pours connected directly to both anode and cathode pads maximize heat spreading. The SMA5J36A-E3/5A performs reliably only when these layout conditions are met.
SMA5J36A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 8.6A
- 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)
SMA5J36A-E3/5A FAQ
1.How can I place an order for SMA5J36A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36A-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 SMA5J36A-E3/5A reliable?
The price and inventory of SMA5J36A-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 SMA5J36A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J36A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36A-E3/5A?
SMA5J36A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36A-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 SMA5J36A-E3/5A?
For technical support, including SMA5J36A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36A-E3/5A requirements.
6.How does Aetrix verify that SMA5J36A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J36A-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 SMA5J36A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J36A-E3/5A?
All SMA5J36A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36A-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 SMA5J36A-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J36A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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