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Vishay General Semiconductor - Diodes Division SA36CA-E3/54
- Part No.:
- SA36CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA36CA-E3/54.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,846
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Product details
Overview
SA36CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 500 W peak pulse power (10/1000 μs), 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR at 1.0 mA), 8.6 A peak pulse current (IPPM), and 58.1 V maximum clamping voltage (VC) - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits.
For engineers reviewing the SA36CA-E3/54 datasheet, SA36CA-E3/54 pinout, SA36CA-E3/54 application, or SA36CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, AEC-Q101 qualification, low leakage (<1.0 μA at VWM), and thermal stability up to +175 °C junction temperature.
Technical Context
The SA36CA-E3/54 operates as a symmetric avalanche diode with identical forward and reverse breakdown characteristics, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance.
It delivers 500 W transient suppression under standardized 10/1000 μs waveform conditions with 0.01 % duty cycle, and maintains clamping performance across -55 °C to +175 °C operating range. The device is rated for 3.0 W steady-state power dissipation at TL = 75 °C on an infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Ensures reliable, repeatable avalanche initiation within tight tolerance for predictable protection timing |
| VC @ IPPM | 58.1 V - Clamped voltage during 8.6 A transient; limits stress on downstream ICs to survivable levels |
| IPPM | 8.6 A - Peak surge current it can safely divert without degradation; validated per 10/1000 μs waveform |
| PPPM | 500 W - Transient energy-handling capacity; supports robust protection against inductive switching spikes and ESD-like events |
| TJ max. | +175 °C - Enables use in high-temperature environments such as automotive engine compartments or industrial motor drives |
| Leakage @ VWM | <1.0 μA - Minimizes standby power loss and avoids false triggering in low-power sensor or battery-operated systems |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded case with matte tin-plated leads. No polarity marking - consistent with bidirectional function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either lead functions identically; no cathode band - enables placement flexibility in AC or differential lines |
| Lead 1 | Terminal for PCB mounting and heat conduction | Provides mechanical anchoring and limited thermal path; solderable per J-STD-002/JESD 22-B102 |
| Lead 2 | Terminal for PCB mounting and heat conduction | Matches Lead 1 electrically and thermally; symmetry supports automated placement and reflow |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift over temperature and lifetime |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 500 W peak pulse rating (10/1000 μs) | Handles common industrial surge threats like IEC 61000-4-5 Level 3 (1 kV/2 Ω) without failure |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for safety-critical industrial and transportation equipment |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage overshoot during fast transients, improving protection margin for 3.3 V or 5 V logic |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
Use Scenario: Protection of encoder feedback lines and gate driver control inputs against back-EMF spikes from brushless DC motors. IC Role / Device Role: Bidirectional clamping element placed directly at connector entry point to limit transient voltage to ≤58.1 V. Use Value: Prevents latch-up or permanent damage to isolated gate drivers (e.g., Si823x) and microcontroller GPIOs exposed to 100 V+ inductive kick. | Use Scenario: Shielding LIN bus transceivers and pressure/temperature sensor analog outputs from load dump and jump-start surges. IC Role / Device Role: Primary line-level TVS on bidirectional data and supply rails in AEC-Q100-compliant modules. Use Value: Maintains signal integrity during 12 V system transients up to ±100 V while meeting automotive EMC immunity standards (ISO 7637-2). |
| Industrial PLC I/O Modules | Consumer Appliance Control Boards |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges and relay contact bounce. IC Role / Device Role: First-stage protection before optocoupler or Schmitt-trigger input conditioning circuitry. Use Value: Extends mean time between failures (MTBF) by absorbing repetitive 500 W pulses without parameter shift or leakage increase. | Use Scenario: Protecting touch controller supply rails and USB-C power delivery negotiation lines in smart home hubs. IC Role / Device Role: Secondary surge clamp after primary MOV, providing precise low-clamp response for sensitive mixed-signal ICs. Use Value: Limits VC to 58.1 V while maintaining <1 μA leakage - avoids brownout or reset issues in always-on subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Same VWM (36 V), higher PPPM (600 W), SMC (DO-214AB) package - 2.5× larger footprint, lower thermal resistance | Preferred where board space allows and higher surge margin is required (e.g., outdoor telecom cabinets) | Select SMBJ36CA when PCB layout permits larger SMC package and 600 W rating is needed for IEC 61000-4-5 Level 4 compliance |
| P6KE36CA | Same VWM (36 V), same DO-15 package, but lower PPPM (600 W only at 1.5 kW peak for 1 ms - derated to 500 W at 10/1000 μs), older platform | Legacy replacement where form-factor match is critical but newer AEC-Q101 qualification is not required | Choose P6KE36CA only for cost-sensitive, non-automotive designs where AEC-Q101 is unnecessary and existing P6KE footprint reuse is mandatory |
Compared with SMBJ36CA and P6KE36CA, the SA36CA-E3/54 offers AEC-Q101 qualification in the compact DO-15 package with verified 500 W performance and <1 μA leakage - making it optimal for space-constrained, automotive-qualified, or high-reliability industrial I/O protection.
Availability
SA36CA-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, and PLC I/O modules requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for SA36CA-E3/54 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, and protection devices with emphasis on reliability, precision, and automotive qualification.
The SAxxCA series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for bidirectional transient suppression in harsh environments - targeting automotive, industrial automation, and power supply applications where symmetrical clamping and high-temperature operation are essential.
FAQ
What is the clamping voltage of the SA36CA-E3/54 under maximum rated surge current?
The SA36CA-E3/54 has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 8.6 A using the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and guarantees that downstream components experience no more than 58.1 V during transient events - critical for protecting 3.3 V or 5 V logic interfaces. The SA36CA-E3/54 maintains this clamping performance across its full operating temperature range.
Is the SA36CA-E3/54 suitable for automotive applications?
Yes, the SA36CA-E3/54 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and sensor modules. Its construction - glass-passivated junction, UL 94 V-0 molding, and operation from -55 °C to +175 °C - meets stringent automotive reliability requirements. The SA36CA-E3/54 is explicitly listed in Vishay's AEC-Q101 qualified product list, and its bidirectional behavior makes it ideal for protecting LIN, CAN FD, and analog sensor lines subject to load dump or jump-start transients.
Does the SA36CA-E3/54 have polarity markings on the package?
No, the SA36CA-E3/54 does not feature a cathode band or any polarity marking because it is a bidirectional TVS diode. Both terminals are functionally identical, allowing unrestricted orientation during placement on PCBs - a key advantage for differential signal lines, AC-coupled interfaces, or space-constrained layouts where routing symmetry matters. This design eliminates assembly errors and simplifies automated optical inspection (AOI) setup compared to unidirectional variants like SA36A-E3/54.
What is the maximum steady-state power dissipation for the SA36CA-E3/54?
The SA36CA-E3/54 is rated for 3.0 W steady-state power dissipation (PD) when mounted on an infinite heatsink at a lead temperature (TL) of 75 °C, per Figure 5 in the datasheet. In real-world PCB layouts, derating applies based on copper area and ambient temperature - typical practical dissipation is 0.5–1.2 W without forced cooling. This rating supports continuous operation in industrial controls and power supply bias networks, but the SA36CA-E3/54 is primarily intended for transient, not continuous, power handling.
How does the SA36CA-E3/54 compare to unidirectional SA36A-E3/54 in terms of electrical behavior?
The SA36CA-E3/54 and SA36A-E3/54 share identical VWM (36 V), VBR (40.0–44.2 V), and VC (58.1 V) ratings, but differ fundamentally in polarity: SA36CA-E3/54 conducts symmetrically in both directions, while SA36A-E3/54 blocks in reverse and conducts only forward above ~3.5 V. This makes the SA36CA-E3/54 appropriate for AC signals, floating grounds, or differential buses; the SA36A-E3/54 suits DC power rail protection where polarity is fixed. Their DO-15 footprints are identical, enabling layout reuse with functional trade-offs.
SA36CA-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- 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 ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA36CA-E3/54 FAQ
1.How can I place an order for SA36CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA36CA-E3/54 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 SA36CA-E3/54 reliable?
The price and inventory of SA36CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA36CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA36CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA36CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA36CA-E3/54?
SA36CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA36CA-E3/54 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 SA36CA-E3/54?
For technical support, including SA36CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA36CA-E3/54 requirements.
6.How does Aetrix verify that SA36CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA36CA-E3/54 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 SA36CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA36CA-E3/54?
All SA36CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA36CA-E3/54, 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 SA36CA-E3/54 part is unused and in its original packaging.
Return procedure for SA36CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA36CA-E3/54 Tags
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