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Vishay General Semiconductor - Diodes Division SA150-E3/73
- Part No.:
- SA150-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150-E3/73.pdf
- Description:
- TVS DIODE 150VWM 268VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,795
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Product details
Overview
SA150-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 243 V at 2.1 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA150-E3/73 datasheet, SA150-E3/73 pinout, SA150-E3/73 application, or SA150-E3/73 equivalent, this page delivers verified electrical parameters, mechanical package details, real-world protection use cases, and validated alternative parts - all aligned with Vishay's official SA5.0A–SA170A family specification document #88378 (Rev. 18-Sep-12).
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages above its VWM threshold. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns), while the DO-204AC package supports manual or automated through-hole assembly with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
The device is rated for 70 A non-repetitive forward surge current (IFSM, 10 ms half-sine), 3.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C, and operates across –55 °C to +175 °C junction temperature range - making it suitable for under-hood automotive, industrial power supply, and telecom infrastructure applications where thermal robustness and surge immunity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V/24 V/48 V systems. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - Confirmed avalanche breakdown range; ensures predictable turn-on during transients without premature conduction. |
| VC @ IPPM | 243 V at 2.1 A (10/1000 μs) - Clamped voltage seen by protected circuit; determines residual stress on downstream ICs or MOSFETs. |
| PPPM | 500 W - Peak surge energy handling capability; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IFSM | 70 A - Single-cycle surge current rating; supports protection against inductive kickback from solenoids, relays, or motors. |
| TJ max | +175 °C - High-temperature junction rating enables placement near heat sources (e.g., power converters) without derating concerns. |
| Leakage ID | 1.0 μA max at VWM - Ultra-low reverse leakage preserves battery life in always-on automotive modules and low-power sensors. |
Pinout & Package
SA150-E3/73 is housed in a DO-204AC (DO-15) molded epoxy package with axial leads. The cathode is marked by a color band on the body; polarity must be observed during PCB layout to ensure correct clamping direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path when transient exceeds VWM. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 150 V bus); avalanche conduction occurs from cathode to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage over lifetime, even under thermal cycling and humidity exposure. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units (ECUs), body control modules (BCMs), and ADAS power domains. |
| 500 W peak pulse power (10/1000 μs) | Provides robust protection against repetitive load dump and alternator surge events per ISO 16750-2. |
| Matte tin-plated leads | Enables reliable solderability per J-STD-002 and eliminates whisker risk (JESD 201 Class 1A, E3 suffix). |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment enclosures. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
|
Use Scenario: Protecting 150 V nominal battery-fed circuits in commercial vehicle telematics modules against load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 150 V rail and chassis ground to shunt surge energy away from PMICs and microcontrollers. Use Value: Limits clamped voltage to ≤243 V, preventing damage to 200 V-rated input capacitors and enabling compliance with ISO 16750-2 Test Pulse 5a. |
Use Scenario: Safeguarding programmable logic controller (PLC) analog input cards from field-wiring induced surges in factory automation environments. IC Role / Device Role / Timing Role: Front-end transient suppressor on 150 V auxiliary supply line feeding isolated ADCs and signal conditioners. Use Value: Withstands 70 A single-pulse surges and maintains <1.0 μA leakage at 150 V, preserving measurement accuracy and long-term calibration stability. |
| Telecom DC Distribution | Renewable Energy Inverter Control |
|
Use Scenario: Shielding remote radio head (RRH) power interfaces from lightning-induced surges on outdoor 150 V DC feeder lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input stage upstream of DC/DC converters and FPGA power sequencing circuits. Use Value: Delivers 500 W surge handling with 243 V clamping, reducing downstream TVS stress and extending system-level surge test pass margin. |
Use Scenario: Protecting solar inverter gate driver supplies from switching transients generated by high-dV/dt IGBT stacks. IC Role / Device Role / Timing Role: Rail-to-ground TVS on isolated 150 V auxiliary supply powering optocouplers and bootstrap circuits. Use Value: Operates reliably from –55 °C to +175 °C, supporting wide ambient ranges in outdoor inverters without thermal derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/5T | Same VWM (150 V), lower PPPM (400 W), SMA package (surface-mount), 2.0 A IPPM vs. 2.1 A. | Designed for space-constrained PCBs; lacks AEC-Q101 qualification and has higher thermal resistance than DO-15. | Select when board area is limited and automotive qualification is not required. |
| 1.5KE150A | Same VWM (150 V), identical DO-201AD package, but higher VC (243 V → 250 V), same PPPM (500 W), no AEC-Q101. | Legacy through-hole alternative with broader industry availability but no automotive reliability validation. | Choose for cost-sensitive industrial designs where AEC-Q101 is unnecessary and legacy BOM reuse is prioritized. |
Compared with SMAJ150A-E3/5T and 1.5KE150A, SA150-E3/73 offers AEC-Q101 qualification, lower thermal resistance via DO-204AC leads, and tighter VBR tolerance - making it the preferred choice for automotive and high-reliability industrial deployments requiring validated surge endurance.
Availability
SA150-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply, RoHS-compliant packaging, and AEC-Q101 traceability.
Supply support for SA150-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SAxxA series was developed specifically for robust, cost-effective transient suppression in automotive, industrial, and communications systems - balancing high surge capacity, tight parametric control, and qualification-grade manufacturing consistency.
FAQ
What is the maximum clamping voltage of SA150-E3/73 at its rated peak pulse current?
The SA150-E3/73 exhibits a maximum clamping voltage (VC) of 243 V when subjected to its specified peak pulse current of 2.1 A under the 10/1000 μs waveform. This value is measured per Vishay's Document Number 88378 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is SA150-E3/73 suitable for automotive applications?
Yes, SA150-E3/73 is AEC-Q101 qualified and explicitly intended for automotive use. Its construction - including glass-passivated junction, matte tin-plated leads (JESD 201 Class 1A), and operation up to +175 °C - meets stringent automotive reliability requirements. It is commonly deployed in ECUs, body control modules, and telematics units for load dump and ISO 7637-2 transient protection.
What does the "E3/73" suffix indicate in SA150-E3/73?
The "E3" suffix denotes RoHS-compliant, commercial-grade packaging with matte tin plating and JESD 201 Class 1A whisker resistance. The "/73" indicates tape-and-reel packaging in 73-inch reels - a standard delivery format for through-hole DO-204AC devices at Vishay, enabling automated insertion and traceable lot control.
How does SA150-E3/73 differ from bi-directional variants like SA150CA?
SA150-E3/73 is unidirectional and features a cathode band for polarity-sensitive placement; SA150CA is bi-directional with no marking and symmetrical clamping in both directions. The SA150-E3/73 is used for DC rail protection where polarity is fixed, whereas SA150CA suits AC-coupled or floating signal lines - they are not interchangeable without circuit redesign.
What is the reverse leakage current of SA150-E3/73 at its stand-off voltage?
At its rated stand-off voltage (VWM) of 150 V and TA = 25 °C, SA150-E3/73 guarantees a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage preserves power integrity in always-on systems such as automotive infotainment wake-up circuits and battery-backed industrial sensors.
SA150-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 268V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- 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)
SA150-E3/73 FAQ
1.How can I place an order for SA150-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150-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 SA150-E3/73 reliable?
The price and inventory of SA150-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 SA150-E3/73 is usually 5 days.
3.What payment methods are accepted for SA150-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150-E3/73?
SA150-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150-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 SA150-E3/73?
For technical support, including SA150-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150-E3/73 requirements.
6.How does Aetrix verify that SA150-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA150-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 SA150-E3/73 meets industry standards.
7.What is the process for return or replacement of SA150-E3/73?
All SA150-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA150-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 SA150-E3/73 part is unused and in its original packaging.
Return procedure for SA150-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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