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Vishay General Semiconductor - Diodes Division SMA5J36CA-E3/5A
- Part No.:
- SMA5J36CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36CA-E3/5A.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J36CA-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 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR at 1 mA), 500 W peak pulse power (10/1000 µs), clamping voltage of 58.1 V at 8.6 A, and operates from –55 °C to +150 °C junction temperature.
For engineers reviewing the SMA5J36CA-E3/5A datasheet, SMA5J36CA-E3/5A pinout, SMA5J36CA-E3/5A application, or SMA5J36CA-E3/5A equivalent, this device is selected for robust ESD and lightning surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line cards where bidirectional clamping and low leakage (<1 µA at VWM) are critical.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, supporting fast transient response (<1 ns) to ESD (IEC 61000-4-2) and surge (IEC 61000-4-5 Level 3) events.
The device is mounted on 5.0 mm × 5.0 mm copper pads per terminal, delivering thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). It meets MSL Level 1 (260 °C reflow peak) and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range for protected line. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Tight breakdown window ensures predictable turn-on and avoids false triggering near operating voltage. |
| VC @ IPPM | 58.1 V at 8.6 A - Clamping voltage under 500 W 10/1000 µs surge; limits downstream voltage stress to safe levels. |
| ID @ VWM | <1 µA - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| PPPM | 500 W - Peak pulse power rating determines survivability against lightning-induced surges and inductive switching transients. |
| TJ Range | –55 °C to +150 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with molded UL 94 V-0 compound; cathode band omitted for bidirectional types (no polarity marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional current path | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency. |
| Case (body) | Non-electrical mechanical interface | Thermally conductive plastic body transfers heat to PCB copper; no electrical connection or grounding requirement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and floating sensors without external polarity management. |
| Glass-passivated junction | Ensures long-term VBR stability and low parameter drift over temperature and lifetime, critical for automotive AEC-Q101-compliant variants. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning, simplifying manufacturing integration. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD), improving protection margin for sensitive IC inputs. |
Applications
| Automotive Sensor Protection | Industrial I/O Module |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector interface to clamp ±40 V surges before they reach signal conditioning amplifiers or microcontroller ADC inputs. Use Value: Maintains signal fidelity under ISO 7637-2 Pulse 5a (load dump) and Pulse 1/2b (inductive switch-off), preventing latch-up or damage to 3.3 V/5 V logic. |
Use Scenario: Shielding 24 V digital input channels in PLC backplanes from field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary surge suppression element across input terminals, coordinated with series impedance to limit let-through energy to downstream optocouplers or Schmitt triggers. Use Value: Withstands repeated 500 W transients while maintaining <1 µA leakage at 24 V nominal, ensuring reliable state detection in noisy factory environments. |
| Telecom Line Card | Consumer USB/Display Interface |
Use Scenario: Safeguarding Ethernet PHY or xDSL line drivers against lightning-induced common-mode surges on twisted-pair ports. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to chassis ground, suppressing differential and common-mode transients simultaneously. Use Value: Symmetric 36 V VWM aligns with Ethernet signaling margins; 58.1 V clamping prevents PHY damage during IEC 61000-4-5 Level 3 (2 kV/1 kA) tests. |
Use Scenario: ESD protection on HDMI, USB 2.0, or DisplayPort hot-plug detection and DDC lines in monitors and docking stations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at connector to shunt HBM ±8 kV and CDM ±1 kV discharges. Use Value: Sub-1 µA leakage preserves bus termination integrity; fast response (<1 ns) prevents ESD-induced data corruption or link resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J36CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and package; same thermal and surge ratings. | No difference in circuit function or layout; selected when halogen-free compliance is mandated by OEM environmental policy. | Direct material substitution where halogen content must be minimized; no design or qualification impact. |
| SMA6J36CA-E3/5A | 600 W peak pulse power (vs. 500 W), higher IPPM (10.3 A vs. 8.6 A), same VWM/VBR/VC; larger thermal mass due to SMA (DO-214AC) with enhanced pad layout. | Suitable for higher-energy surge environments (e.g., outdoor base stations, railway signaling) where 20 % extra power margin is required. | Select when system-level surge testing exceeds IEC 61000-4-5 Level 3; verify PCB pad thermal relief matches 600 W derating curve. |
Compared with SMA5J36CA-E3/5A, SMA5J36CA-M3/5A offers identical protection performance with halogen-free construction, while SMA6J36CA-E3/5A provides 20 % higher surge power handling at the cost of slightly larger board footprint and revised thermal layout requirements.
Availability
SMA5J36CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial programmable logic controllers, and telecom line card designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMA5J36CA-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 reliability, power density, and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial control, and infrastructure equipment where AEC-Q101 qualification and robust surge immunity are mandatory.
FAQ
What is the polarity configuration of SMA5J36CA-E3/5A?
The SMA5J36CA-E3/5A is a bidirectional TVS diode, meaning it functions identically in both forward and reverse directions. Unlike unidirectional variants (e.g., SMA5J36A), it has no cathode band marking and provides symmetrical clamping for AC-coupled or floating signal paths. This eliminates polarity concerns during placement and supports protection of differential interfaces such as RS-485 or CAN without additional circuitry.
Does SMA5J36CA-E3/5A meet AEC-Q101 qualification?
The SMA5J36CA-E3/5A itself is not AEC-Q101 qualified; that qualification applies only to variants with HE3 or HM3 suffixes (e.g., SMA5J36CAHE3_A/I). The E3/5A version is commercial-grade, RoHS-compliant, and rated for –55 °C to +150 °C operation, but lacks the extended reliability testing required for automotive under-hood use. For AEC-Q101 applications, specify SMA5J36CAHE3_A/I with appropriate packaging code.
What is the maximum clamping voltage of SMA5J36CA-E3/5A under surge conditions?
The SMA5J36CA-E3/5A clamps to a maximum of 58.1 V when subjected to its rated 8.6 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on recommended 5.0 mm × 5.0 mm copper pads. Clamping voltage increases with junction temperature and decreases with improved PCB thermal design - consult Figure 2 in the datasheet for derating curves.
Can SMA5J36CA-E3/5A be used in place of a unidirectional TVS like SMA5J36A?
No - SMA5J36CA-E3/5A is not a drop-in replacement for SMA5J36A. While both share the same VWM (36 V) and similar VBR, the unidirectional SMA5J36A conducts forward current and requires correct polarity orientation, whereas SMA5J36CA-E3/5A is symmetrical and non-polarized. Substituting one for the other may cause unintended conduction or failure to protect in DC-biased circuits.
What is the junction-to-ambient thermal resistance (RθJA) of SMA5J36CA-E3/5A?
The typical junction-to-ambient thermal resistance of SMA5J36CA-E3/5A is 80 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air conditions and is critical for calculating steady-state temperature rise during repetitive surge events or elevated ambient operation. For improved thermal performance, increase copper area or add thermal vias beneath the pads.
SMA5J36CA-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):
- 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)
SMA5J36CA-E3/5A FAQ
1.How can I place an order for SMA5J36CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36CA-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 SMA5J36CA-E3/5A reliable?
The price and inventory of SMA5J36CA-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 SMA5J36CA-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J36CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36CA-E3/5A?
SMA5J36CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36CA-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 SMA5J36CA-E3/5A?
For technical support, including SMA5J36CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J36CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J36CA-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 SMA5J36CA-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J36CA-E3/5A?
All SMA5J36CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36CA-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 SMA5J36CA-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J36CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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