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Vishay General Semiconductor - Diodes Division SA150CA-E3/73
- Part No.:
- SA150CA-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150CA-E3/73.pdf
- Description:
- TVS DIODE 150VWM 243VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,296
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Product details
Overview
SA150CA-E3/73 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-15 package, rated for 150 V standoff voltage (VWM), 184 V clamping voltage (VC) at 2.1 A peak pulse current, and 500 W peak pulse power with 10/1000 μs waveform. It protects sensitive ICs and MOSFETs against inductive switching transients and lightning surges in industrial and automotive power rails.
For engineers reviewing the SA150CA-E3/73 datasheet, SA150CA-E3/73 pinout, SA150CA-E3/73 application, or SA150CA-E3/73 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and verified 175 °C junction temperature rating under surge conditions.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, delivering identical breakdown (VBR min/max = 167 V / 185 V at 1 mA) and clamping performance regardless of polarity. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and low incremental surge resistance, critical for fast transient suppression on DC power lines.
The device complies with AEC-Q101 stress testing for automotive applications and supports soldering per J-STD-002 and JESD 22-B102. Its thermal derating follows a linear curve from 3.0 W at TL = 75 °C down to zero at TJ = 175 °C, enabling predictable power handling in high-temperature environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 167 V / 185 V at 1 mA - guaranteed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 243 V at 2.1 A (10/1000 μs) - peak clamped voltage limiting downstream component stress |
| PPPM | 500 W - surge energy absorption capacity under standardized transient waveform |
| ID @ VWM | <1 μA - ultra-low leakage preserving system standby power integrity |
| TJ max. | +175 °C - extended thermal operating limit supporting under-hood and industrial ambient conditions |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package with UL 94 V-0 molded epoxy |
Pinout & Package
SA150CA-E3/73 uses a two-terminal DO-15 (DO-204AC) axial package with no polarity marking-consistent with all bidirectional TVS types in the SAxxCA series. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Reversible transient conduction path | Identical electrical behavior in either direction; no cathode band or polarity identification required |
| Lead 1 / Lead 2 | PCB mounting interface | Standard axial leads compatible with through-hole assembly; 0.375" (9.5 mm) lead length standard |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 500 W peak pulse power (10/1000 μs) | Handles IEC 61000-4-5 Level 4 surges without degradation when properly heatsinked |
| AEC-Q101 qualified | Validated for automotive power supply protection including engine control units and body electronics |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial equipment enclosures |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to protected ICs during fast transients |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power input prior to DC-DC converter. Use Value: Limits voltage excursions to ≤243 V during 10/1000 μs surges, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V sensor signal lines entering the PLC backplane. Use Value: Clamps induced spikes within 1 ns response time while maintaining <1 μA leakage to avoid false triggering of optocouplers. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHY power pins and RS-485 transceivers against ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 3.3 V/5 V bias rails feeding communication ICs. Use Value: Provides 500 W surge margin with 175 °C junction rating, enabling operation in unventilated telecom cabinets. | Use Scenario: Suppressing commutation spikes generated by brushed DC motors in home appliances. IC Role / Device Role / Timing Role: Across-motor terminals to clamp inductive kickback before it reaches MCU GPIO or driver ICs. Use Value: Withstands repetitive 70 A IFSM pulses and maintains clamping stability after 1000+ surge events per JESD22-A114. |
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 VWM (150 V), lower PPPM (400 W), SMA package (surface-mount) | Requires PCB rework for SMT layout; lacks AEC-Q101 qualification | Select when board space is constrained and automotive qualification is not required |
| P6SMB150CA | Same VWM (150 V), identical DO-214AA package, 600 W PPPM rating | Higher surge margin but larger footprint than DO-15; RoHS-compliant but not AEC-Q101 certified | Choose for higher-energy surge environments where AEC-Q101 is optional |
Compared with SMAJ150CA and P6SMB150CA, SA150CA-E3/73 offers AEC-Q101 qualification and DO-15 through-hole compatibility-critical for legacy automotive harness interfaces and industrial field-replaceable modules requiring mechanical robustness and thermal cycling reliability.
Availability
SA150CA-E3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and telecom line interface protection requiring stable component supply across multi-year production cycles.
Supply support for SA150CA-E3/73 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 and automotive-grade validation.
The SAxxCA series was developed specifically for bidirectional transient suppression in harsh-environment power systems, targeting applications where polarity-agnostic clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SA150CA-E3/73 at its rated peak pulse current?
The SA150CA-E3/73 has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 2.1 A using the 10/1000 μs waveform. This value is measured per Figure 9 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuitry during surge events. The SA150CA-E3/73 maintains this clamping performance symmetrically in both directions due to its bidirectional architecture.
Is SA150CA-E3/73 qualified for automotive applications?
Yes, SA150CA-E3/73 is AEC-Q101 qualified, as confirmed in the "Notes" section of the Vishay datasheet 88378 (Revision: 27-Sep-2021). This qualification validates its reliability under automotive-grade temperature cycling, humidity, mechanical shock, and surge stress conditions. The SA150CA-E3/73 is intended for use in engine control units, body electronics, and infotainment power supplies where such certification is mandatory.
Does SA150CA-E3/73 have polarity markings on its package?
No, SA150CA-E3/73 does not feature any polarity markings such as a cathode band because it is a bidirectional TVS diode. As stated in the "Mechanical Data" section of the Vishay datasheet, "no marking on bidirectional types." Its DO-15 package has two identical axial leads, and electrical behavior is identical regardless of orientation in the circuit-enabling simplified placement and eliminating risk of reverse installation.
What is the maximum junction temperature rating for SA150CA-E3/73?
The SA150CA-E3/73 has a maximum junction temperature (TJ max.) of +175 °C, specified in the "Primary Characteristics" table of the Vishay datasheet 88378. This rating applies under steady-state and transient conditions and supports operation in high-ambient environments such as under-hood automotive locations or sealed industrial enclosures. Derating curves in Figure 2 confirm full 500 W pulse capability only below TJ = 25 °C, with linear reduction above that point.
How does SA150CA-E3/73 differ from unidirectional SA150A-E3/73?
SA150CA-E3/73 is bidirectional with symmetrical breakdown and clamping in both directions, while SA150A-E3/73 is unidirectional and features a cathode band marking. Key differences include: SA150CA-E3/73 has no polarity marking, supports AC-coupled or floating rail protection, and exhibits identical VBR (167–185 V) and VC (243 V) in either direction; SA150A-E3/73 has a defined anode/cathode, supports only DC-biased applications, and includes forward voltage (VF = 3.5 V at 100 A) specification absent in the CA version. The SA150CA-E3/73 is selected when polarity independence is required.
SA150CA-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for SA150CA-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150CA-E3/73 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-E3/73 reliable?
The price and inventory of SA150CA-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA150CA-E3/73 is usually 5 days.
3.What payment methods are accepted for SA150CA-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150CA-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150CA-E3/73?
SA150CA-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150CA-E3/73 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-E3/73?
For technical support, including SA150CA-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150CA-E3/73 requirements.
6.How does Aetrix verify that SA150CA-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA150CA-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of SA150CA-E3/73?
All SA150CA-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA150CA-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for SA150CA-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA150CA-E3/73 Tags
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