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Vishay General Semiconductor - Diodes Division SA64CA-E3/54
- Part No.:
- SA64CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA64CA-E3/54.pdf
- Description:
- TVS DIODE 64VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,702
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Product details
Overview
SA64CA-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 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), 103 V maximum clamping voltage at 4.9 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA64CA-E3/54 datasheet, SA64CA-E3/54 pinout, SA64CA-E3/54 application, or SA64CA-E3/54 equivalent, this device is selected for robust ESD and surge protection in bidirectional DC rails, sensor interfaces, and automotive control modules where low-leakage, fast response (<1 ns), and stable clamping under repetitive transients are required.
Technical Context
The SA64CA-E3/54 operates as a symmetrical avalanche diode with identical forward and reverse breakdown characteristics, enabling bidirectional transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR over temperature and long-term reliability under surge stress.
It delivers 500 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derates linearly above 25 °C per Fig. 2, and maintains ≤1.0 μA reverse leakage at 64 V (VWM). The device supports operating junction temperatures from –55 °C to +175 °C and meets JESD22-B106 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse working voltage before clamping begins; defines safe DC operating margin. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Ensures predictable turn-on across production lot and temperature; critical for system-level overvoltage threshold design. |
| VC @ IPPM | 103 V at 4.9 A - Clamping voltage during 10/1000 μs surge; determines maximum stress imposed on protected downstream ICs. |
| PPPM | 500 W - Peak transient energy handling capability; validates suitability for IEC 61000-4-5 Level 3/4 surge events. |
| ID @ VWM | ≤1.0 μA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor or CAN bus nodes. |
| TJ Range | –55 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor power electronics. |
| AEC-Q101 | Qualified - Confirms reliability for automotive electronic control units (ECUs), body controllers, and ADAS sensor interfaces. |
Pinout & Package
Package: DO-15 (DO-204AC), axial leaded, epoxy-molded, RoHS-compliant, matte tin-plated leads. No polarity marking - symmetric bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either end functions identically; no orientation required during PCB placement - simplifies layout and assembly. |
| Lead 1 | Terminal connection to P-side of junction | Electrically interchangeable with Lead 2; forms low-inductance path for transient current diversion to ground or rail. |
| Lead 2 | Terminal connection to N-side of junction | Matches Lead 1 in electrical behavior; enables placement across any two-point voltage node needing bidirectional clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR over 1000+ surge cycles and eliminates parameter drift due to moisture or contamination. |
| 500 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment. |
| AEC-Q101 qualified | Confirms qualification for automotive applications including engine control, lighting, and infotainment systems. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin. |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation electronics enclosures. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and chassis ground to shunt >100 V spikes within nanoseconds. Use Value: Limits rail voltage to ≤103 V during 4.9 A surge, preventing damage to microcontrollers and CAN transceivers rated for 36 V absolute max. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) from ESD and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS placed differential across signal pair to suppress ±8 kV contact ESD without distorting low-bandwidth analog signals. Use Value: ≤1.0 μA leakage at 64 V avoids loading precision current sources; symmetric clamping prevents polarity-dependent failure modes. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceiver I/O pins from lightning-induced surges on building-wide communication buses. IC Role / Device Role / Timing Role: Bidirectional TVS mounted at connector entry point to clamp common-mode transients before they reach isolation barriers or PHY ICs. Use Value: 103 V clamping voltage ensures transceiver inputs remain below 12 V absolute maximum rating even under 500 W surge conditions. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drive). IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback energy and prevent MOSFET drain-source breakdown. Use Value: 500 W peak power rating handles repetitive 10/1000 μs pulses during motor commutation; DO-15 package allows direct through-hole mounting near motor leads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-E3/57 | Unidirectional; same VWM/VBR/VC specs but asymmetric conduction; requires correct polarity placement. | Only suitable where polarity is fixed and ground-referenced clamping suffices; not usable in floating or AC-coupled paths. | Select SMAJ64A-E3/57 only when board layout enforces unidirectional signal flow and polarity-aware routing is feasible. |
| 1.5KE68CA | Higher PPPM (1500 W); larger DO-201 package; higher clamping voltage (118 V at 12.5 A); same bidirectional symmetry. | Better suited for high-energy surge environments (e.g., outdoor telecom cabinets), but requires more PCB area and thermal margin. | Choose 1.5KE68CA when system-level surge testing exceeds IEC 61000-4-5 Level 4 and DO-15 footprint constraints are relaxed. |
Compared with SMAJ64A-E3/57 and 1.5KE68CA, the SA64CA-E3/54 offers optimal balance of compact DO-15 footprint, AEC-Q101 qualification, and precise 103 V clamping-making it preferred for space-constrained automotive and industrial modules requiring verified automotive-grade reliability.
Availability
SA64CA-E3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line interfaces, and consumer appliance motor controls requiring stable component supply and full traceability.
Supply support for SA64CA-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 protection devices with emphasis on reliability, efficiency, and automotive qualification.
The SAxxCA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for high-reliability transient suppression in harsh environments-including under-hood automotive, industrial automation, and infrastructure communications.
FAQ
What is the maximum clamping voltage of the SA64CA-E3/54 under standard surge conditions?
The SA64CA-E3/54 has a maximum clamping voltage (VC) of 103 V at 4.9 A peak pulse current (IPPM), measured using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 500 W transient event and is confirmed in the Vishay datasheet Document Number 88378, page 2. The SA64CA-E3/54 maintains this clamping performance across its full operating temperature range.
Is the SA64CA-E3/54 suitable for automotive applications?
Yes, the SA64CA-E3/54 is AEC-Q101 qualified, confirming its reliability for automotive electronic systems including engine control units, body electronics, and ADAS sensor interfaces. Its –55 °C to +175 °C operating junction temperature range, glass-passivated junction, and DO-15 mechanical robustness meet automotive environmental stress requirements. The SA64CA-E3/54 is explicitly listed in Vishay's AEC-Q101 qualified products table.
Does the SA64CA-E3/54 have polarity markings, and how is it installed on PCB?
No, the SA64CA-E3/54 has no polarity marking because it is a bidirectional TVS diode with symmetrical avalanche characteristics. Either lead may connect to either side of the protected node - installation requires no orientation check. This simplifies automated placement and eliminates risk of reverse-mounting errors. The SA64CA-E3/54 is designed for through-hole mounting in DO-15 footprint.
What is the reverse leakage current of the SA64CA-E3/54 at its rated stand-off voltage?
The SA64CA-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 64 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and minimizes standby power loss in battery-powered systems. The value is specified in the Electrical Characteristics table of the Vishay SA5.0A–SA170CA datasheet (Document Number 88378, page 2).
How does the SA64CA-E3/54 compare to unidirectional TVS diodes like the SA64A-E3/54?
The SA64CA-E3/54 is bidirectional with symmetrical clamping in both directions, while the SA64A-E3/54 is unidirectional and conducts only in reverse bias - requiring correct cathode orientation. The SA64CA-E3/54 eliminates polarity dependency, making it ideal for AC-coupled, floating, or differential signal paths. Both share identical VWM, VBR, and VC specs, but only the SA64CA-E3/54 supports true bidirectional protection without redesigning layout or adding external components.
SA64CA-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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- 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)
SA64CA-E3/54 FAQ
1.How can I place an order for SA64CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA64CA-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 SA64CA-E3/54 reliable?
The price and inventory of SA64CA-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 SA64CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA64CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA64CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA64CA-E3/54?
SA64CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA64CA-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 SA64CA-E3/54?
For technical support, including SA64CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA64CA-E3/54 requirements.
6.How does Aetrix verify that SA64CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA64CA-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 SA64CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA64CA-E3/54?
All SA64CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA64CA-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 SA64CA-E3/54 part is unused and in its original packaging.
Return procedure for SA64CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA64CA-E3/54 Tags
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