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Vishay General Semiconductor - Diodes Division SA150CA-E3/54
- Part No.:
- SA150CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150CA-E3/54.pdf
- Description:
- TVS DIODE 150VWM 243VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,785
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Product details
Overview
SA150CA-E3/54 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-15 package, rated for 150 V standoff voltage (VWM), 178–197 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 μs), 2.1 A peak pulse current (IPPM), and 243 V clamping voltage (VC) at rated surge. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in industrial and automotive electronics.
For engineers reviewing the SA150CA-E3/54 datasheet, SA150CA-E3/54 pinout, SA150CA-E3/54 application, or SA150CA-E3/54 equivalent, key selection criteria include bidirectional clamping behavior, DO-15 mechanical compatibility, AEC-Q101 qualification, 175 °C maximum junction temperature, and 243 V clamping voltage under 2.1 A 10/1000 μs surge.
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical avalanche breakdown in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, critical for consistent clamping performance across repetitive surge events.
Designed for unclamped inductive load switching (e.g., relay coils, solenoids) and telecom line protection, it delivers 500 W peak pulse power with 0.01 % duty cycle and derates linearly above 25 °C ambient per Vishay's Fig. 2. The 175 °C TJ max supports operation in high-temperature engine bay or industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 178 V / 197 V - Breakdown initiates within this band at 1 mA test current; ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 243 V - Clamping voltage measured at 2.1 A 10/1000 μs surge; determines worst-case overvoltage seen by downstream components. |
| PPPM | 500 W - Peak transient energy absorption capability under standard 10/1000 μs waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| TJ max | +175 °C - Maximum junction temperature rating; enables reliable operation in under-hood or enclosed industrial enclosures without forced cooling. |
| Package | DO-15 (DO-204AC) - Standard axial-leaded through-hole package with 0.242–0.258 inch body length; compatible with legacy PCB layouts and wave-solder processes. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TC, UHAST, and ESD; supports functional safety-relevant designs. |
Pinout & Package
DO-15 (DO-204AC) package: axial-leaded, molded epoxy case with matte tin-plated leads; no polarity marking for bidirectional configuration; lead length ≥ 1.0 inch (25.4 mm); solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during negative transient | Enables symmetrical clamping: conducts when voltage at this terminal falls >178 V below cathode potential. |
| Cathode | Current entry terminal during positive transient | Conducts when voltage at this terminal rises >178 V above anode potential; forms bidirectional avalanche path with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures ±5 % VBR tolerance and stable leakage (<1.0 μA at 150 V), critical for precision clamping in low-power sensor interfaces. |
| 500 W peak pulse power (10/1000 μs) | Withstands 2.1 A surge current without degradation-validates compliance with IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| AEC-Q101 qualification | Confirms reliability under automotive thermal cycling, humidity, and vibration stresses-supports use in ADAS camera modules and body control units. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during fast transients-protects 150 V-rated MOSFETs and gate drivers without overdesigning margin. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical industrial and telecom infrastructure applications. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails feeding electronic control units (ECUs) from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt TVS diode placed at ECU input stage to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Withstands 500 W surges up to 175 °C junction temperature, eliminating need for external heatsinking in compact ECU housings. | Use Scenario: Safeguarding analog input channels (e.g., 4–20 mA loops) in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element across signal and return lines to suppress differential-mode transients without polarity concerns. Use Value: Symmetrical VBR (178–197 V) and VC (243 V) ensure equal protection for positive/negative surges common in factory floor wiring environments. |
| Telecom Line Interface | Sensor Signal Conditioning |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at connector entry point, upstream of common-mode chokes and data-line TVS arrays. Use Value: 500 W rating and fast response time limit voltage excursion to ≤243 V, preserving integrity of 3.3 V/5 V interface ICs behind isolation barriers. | Use Scenario: Protecting analog outputs of pressure/temperature sensors connected to long cables in HVAC or process control systems. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA at 150 V) bidirectional clamp preventing sensor output saturation during cable-coupled ESD events. Use Value: Glass-passivated junction maintains stable leakage across temperature, avoiding measurement drift in precision 16-bit ADC front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150CA | Same 150 V VWM and bidirectional DO-214AC package; lower PPPM (400 W) and higher VC (243 V vs. 244 V); RoHS-compliant but not AEC-Q101 qualified. | Lacks automotive qualification; suitable for commercial/industrial boards where AEC-Q101 is not mandated. | Select SMAJ150CA for cost-sensitive non-automotive designs requiring surface-mount footprint instead of axial DO-15. |
| P6SMB150CA | Same 150 V VWM and DO-214AA package; identical 500 W PPPM and 243 V VC; AEC-Q101 qualified; slightly higher VBR (179–199 V). | Matches SA150CA-E3/54 performance in all key parameters but uses SMB package for higher board density. | Choose P6SMB150CA when space-constrained PCB layouts require SMD mounting without sacrificing automotive qualification or clamping performance. |
Compared with SMAJ150CA and P6SMB150CA, SA150CA-E3/54 offers identical clamping voltage and AEC-Q101 qualification but uses through-hole DO-15 packaging-ideal for high-reliability prototyping, manual assembly, or legacy industrial systems where axial leads simplify rework and thermal management.
Availability
SA150CA-E3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom line interfaces, and sensor signal conditioning circuits requiring stable component supply and long-term lifecycle support.
Supply support for SA150CA-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, MOSFETs, and TVS devices with emphasis on reliability, power handling, and automotive-grade qualification.
The SAxxCA series targets high-energy transient suppression in harsh environments; designed specifically for bidirectional clamping in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 175 °C operation are mandatory.
FAQ
What is the clamping voltage of SA150CA-E3/54 at its rated peak pulse current?
The SA150CA-E3/54 has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current (IPPM) of 2.1 A under the standard 10/1000 μs waveform. This value is measured per Vishay Document Number 88378 and defines the upper voltage limit imposed on protected circuitry during surge events. Maintaining VC below 243 V ensures compatibility with 150 V-rated downstream components such as power MOSFETs and gate drivers in the SA150CA-E3/54 application circuit.
Is SA150CA-E3/54 suitable for automotive applications?
Yes, SA150CA-E3/54 is AEC-Q101 qualified per Vishay's documentation, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS subsystems. The device operates reliably from –55 °C to +175 °C junction temperature and passes stress tests for high-temperature operating life, thermal cycling, and unbiased highly accelerated stress testing. This qualification makes SA150CA-E3/54 appropriate for under-hood and cabin-mounted systems where sustained thermal and mechanical reliability is required.
How does the bidirectional nature of SA150CA-E3/54 affect its circuit placement?
The bidirectional design of SA150CA-E3/54 means it provides symmetrical clamping for both positive and negative transients without polarity sensitivity-no cathode marking is present on the DO-15 package. This allows direct placement across any two nodes subject to differential surges (e.g., signal pair, power/return), eliminating orientation errors during assembly. In contrast to unidirectional TVS diodes, SA150CA-E3/54 simplifies layout for AC-coupled or floating interfaces like RS-485 or sensor bridges where voltage polarity reversal is possible.
What is the maximum steady-state power dissipation for SA150CA-E3/54?
The SA150CA-E3/54 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at a lead temperature (TL) of 75 °C, as specified in Vishay Document Number 88378. This rating applies only to continuous DC or low-frequency conditions-not transient suppression-and must be derated linearly above 75 °C TL per Fig. 5. For typical surge protection use, PD is not limiting; the device relies on its 500 W peak pulse rating rather than continuous power handling.
Does SA150CA-E3/54 have a defined capacitance value for high-speed signal lines?
No, the SA150CA-E3/54 datasheet does not specify junction capacitance (CJ); Figure 6 shows CJ curves only for VWM ≤ 85 V devices in the SAxxA/CA family, with no data plotted for 150 V and higher variants. Therefore, SA150CA-E3/54 is not characterized for high-speed data line protection (e.g., USB, HDMI). It is intended for power rail and low-bandwidth analog/sensor line protection where capacitance is non-critical. For signal integrity–sensitive applications, a low-capacitance TVS such as the Vishay ESD9L5.0ST5G should be evaluated instead of SA150CA-E3/54.
SA150CA-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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.1A
- 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)
SA150CA-E3/54 FAQ
1.How can I place an order for SA150CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150CA-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 SA150CA-E3/54 reliable?
The price and inventory of SA150CA-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 SA150CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA150CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150CA-E3/54?
SA150CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150CA-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 SA150CA-E3/54?
For technical support, including SA150CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150CA-E3/54 requirements.
6.How does Aetrix verify that SA150CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA150CA-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 SA150CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA150CA-E3/54?
All SA150CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA150CA-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 SA150CA-E3/54 part is unused and in its original packaging.
Return procedure for SA150CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA150CA-E3/54 Tags
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