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Vishay General Semiconductor - Diodes Division SA5.0CA-E3/54
- Part No.:
- SA5.0CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0CA-E3/54.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,898
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Product details
Overview
SA5.0CA-E3/54 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 μs), 54.3 V clamping voltage at 12.5 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA5.0CA-E3/54 datasheet, SA5.0CA-E3/54 pinout, SA5.0CA-E3/54 application, or SA5.0CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, low VWM/VBR ratio, DO-15 mechanical compatibility, TJ = –55 °C to +175 °C operating range, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
The SA5.0CA-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling symmetrical clamping in both polarities. Its bidirectional structure eliminates polarity marking and supports AC-coupled or floating-line protection without orientation constraints.
It delivers 500 W peak pulse power under 10/1000 μs waveform with 0.01 % duty cycle, exhibits ≤7.25 V maximum VBR (per note 4), and maintains <5 μA reverse leakage at 5.0 V VWM - critical for low-power sensor interface and automotive CAN/LIN bus line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse voltage before significant leakage; sets upper limit for protected circuit DC bias |
| VBR min/max | 6.4 V / 7.07 V at 10 mA - defines reliable avalanche initiation window; ensures consistent turn-on across temperature and unit variation |
| VC @ IPPM | 54.3 V at 12.5 A - clamping voltage during 10/1000 μs surge; determines maximum stress imposed on downstream ICs |
| PPPM | 500 W - peak transient energy handling capacity; enables robust protection against ESD, lightning, and inductive switching spikes |
| TJ max | +175 °C - extended junction temperature rating; supports under-hood automotive placement and high-ambient industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package with 0.130" diameter body; compatible with legacy through-hole assembly and manual repair |
Pinout & Package
SA5.0CA-E3/54 uses a two-terminal DO-15 (DO-204AC) axial package with no polarity marking - consistent with its bidirectional function. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction between leads; either terminal may connect to line or ground - simplifies PCB layout and eliminates orientation errors |
| Lead 1 / Lead 2 | Current path for transient conduction | Both leads carry equal surge current magnitude in opposite directions during clamping; requires symmetric trace routing for balanced impedance |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; prevents moisture-induced degradation in humid environments |
| 500 W peak pulse power (10/1000 μs) | Withstands automotive load-dump surges and industrial relay-switching transients without degradation or thermal runaway |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge), improving system-level immunity margin |
| UL 94 V-0 molding compound | Self-extinguishing epoxy housing meets fire-safety requirements for enclosed industrial and transportation equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to ISO 7637-2 pulse 1, 2a, and 5a. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between sensor signal line and ground, limiting transient voltage to <55 V during 100 V/50 ms load dump events. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V ADC front-ends while maintaining <5 μA leakage at nominal 5 V supply. | Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback caused by solenoid valve switching. IC Role / Device Role / Timing Role: Line-to-ground TVS on each isolated input channel, activated within <1 ns to clamp 600 V/1 A transients to <60 V. Use Value: Enables reliable operation in harsh factory environments without requiring optocoupler isolation or additional RC filtering. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines behind primary polymer-based TVS, meeting IEC 61000-4-2 ±15 kV air/±8 kV contact. IC Role / Device Role / Timing Role: Fast-response silicon avalanche clamp absorbing residual ESD energy after polymer TVS triggers, limiting voltage to <12 V peak. Use Value: Preserves signal integrity up to 480 Mbps while preventing gate oxide rupture in USB transceivers. | Use Scenario: Primary surge protection on twisted-pair DSL lines subjected to induced lightning surges per ITU-T K.20/K.21. IC Role / Device Role / Timing Role: Bidirectional line-to-line and line-to-ground suppressor mounted at DSL modem entrance, rated for 500 W 10/1000 μs impulses. Use Value: Maintains <1 pF capacitance impact on high-frequency DSL signals while surviving repeated 1 kV/500 A surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-E3/5T | Unidirectional; SMA package; 600 W PPPM; VF = 3.5 V forward drop | Requires polarity-aware layout; unsuitable for AC-coupled or floating lines without external diode bridge | Select when higher pulse power is needed and unidirectional operation is acceptable |
| P6SMB5.0A | Unidirectional; SMB package; 600 W PPPM; VBR = 6.4–7.0 V; no AEC-Q101 qualification | Lacks automotive qualification; smaller footprint but lower thermal mass than DO-15 | Select for cost-sensitive consumer applications where AEC-Q101 is not required |
Compared with SMAJ5.0A-E3/5T and P6SMB5.0A, the SA5.0CA-E3/54 uniquely provides bidirectional clamping in a through-hole DO-15 package with AEC-Q101 validation - making it the only option among the three qualified for automotive under-hood sensor protection without polarity constraints or rework risk.
Availability
SA5.0CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port hardening, and telecom DSL line protection requiring stable component supply and long-term lifecycle support.
Supply support for SA5.0CA-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 qualification.
The SAxxCA series is part of Vishay's TransZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in automotive, industrial, and communications infrastructure where polarity-agnostic protection and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of SA5.0CA-E3/54 under standard 10/1000 μs surge conditions?
The SA5.0CA-E3/54 has a maximum clamping voltage (VC) of 54.3 V at 12.5 A peak pulse current (IPPM), measured using the standardized 10/1000 μs waveform. This value ensures downstream components such as microcontrollers or analog front-ends remain below their absolute maximum voltage ratings during transient events. The SA5.0CA-E3/54 achieves this clamping performance while maintaining low leakage and stable VBR across temperature.
Is SA5.0CA-E3/54 suitable for automotive applications, and what qualification does it hold?
Yes, SA5.0CA-E3/54 is explicitly AEC-Q101 qualified, as confirmed in Vishay's datasheet revision 27-Sep-2021 (Document Number: 88378). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD - validating its suitability for engine control units, body electronics, and ADAS sensor interfaces. The SA5.0CA-E3/54 is rated for TJ = –55 °C to +175 °C, supporting under-hood deployment.
Does SA5.0CA-E3/54 have polarity markings, and how should it be mounted on PCB?
No, SA5.0CA-E3/54 has no polarity marking because it is a bidirectional TVS diode - both terminals are functionally identical. It must be mounted with either lead connected to the protected line and the other to ground (or reference plane), with no orientation dependency. This eliminates assembly errors and simplifies layout for AC-coupled or floating differential lines, unlike unidirectional alternatives such as SMAJ5.0A-E3/5T.
What is the reverse leakage current of SA5.0CA-E3/54 at its rated stand-off voltage?
At VWM = 5.0 V and TA = 25 °C, the SA5.0CA-E3/54 exhibits a maximum reverse leakage current (ID) of 600 μA - significantly lower than many competing TVS devices in the same voltage class. This low leakage preserves battery life in always-on automotive modules and avoids false triggering in high-impedance sensor circuits. The SA5.0CA-E3/54 maintains this performance across its full operating temperature range.
Can SA5.0CA-E3/54 be used in place of unidirectional TVS diodes like SMAJ5.0A?
SA5.0CA-E3/54 can replace unidirectional TVS diodes only in applications where bidirectional clamping is acceptable or required - such as AC signal lines, floating buses, or systems lacking defined ground reference. Unlike SMAJ5.0A, the SA5.0CA-E3/54 does not conduct forward current; it clamps equally in both directions. Substitution requires verifying that system topology tolerates symmetrical clamping and that no forward-bias conduction path exists.
SA5.0CA-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- 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)
SA5.0CA-E3/54 FAQ
1.How can I place an order for SA5.0CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0CA-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 SA5.0CA-E3/54 reliable?
The price and inventory of SA5.0CA-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 SA5.0CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA5.0CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0CA-E3/54?
SA5.0CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0CA-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 SA5.0CA-E3/54?
For technical support, including SA5.0CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0CA-E3/54 requirements.
6.How does Aetrix verify that SA5.0CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA5.0CA-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 SA5.0CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA5.0CA-E3/54?
All SA5.0CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0CA-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 SA5.0CA-E3/54 part is unused and in its original packaging.
Return procedure for SA5.0CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5.0CA-E3/54 Tags
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