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Vishay General Semiconductor - Diodes Division SA30CA-E3/54
- Part No.:
- SA30CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA30CA-E3/54.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:18,014
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Product details
Overview
SA30CA-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 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 10 mA, 48.4 V clamping voltage (VC) at 10 A peak pulse current, 500 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA30CA-E3/54 datasheet, SA30CA-E3/54 pinout, SA30CA-E3/54 application, or SA30CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, 175 °C max junction temperature, low incremental surge resistance, and compliance with IEC 61000-4-2/4-4/4-5 for ESD and surge protection in automotive sensor interfaces and industrial control inputs.
Technical Context
The SA30CA-E3/54 operates as a symmetrical avalanche diode, conducting in both directions when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 μA at 30 V), while the DO-15 package supports manual or wave soldering per J-STD-002 and JESD 22-B102.
It delivers 500 W transient suppression under 10/1000 μs waveform with 0.01 % duty cycle, and maintains clamping performance across -55 °C to +175 °C operating range. The device exhibits 36 mV/°C temperature coefficient of VBR and meets UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 33.3 V / 36.8 V at 10 mA - defines reliable avalanche onset window for design margining |
| VC @ IPPM | 48.4 V at 10 A - peak clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 500 W - transient energy handling capacity under standard surge waveform |
| ID @ VWM | <1.0 μA - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max | +175 °C - enables use in under-hood automotive environments without derating |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded case with matte tin-plated leads. No polarity marking - symmetric bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (both ends) | Reversible transient conduction path | Identical terminals enable placement without orientation check; clamps positive or negative transients equally |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures tight VBR tolerance (±5 %), stable leakage, and long-term reliability under thermal cycling |
| 500 W peak pulse power (10/1000 μs) | Protects against IEC 61000-4-5 Level 3 surges (1 kV line-to-ground, 2 kV line-to-line) without failure |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and transportation equipment |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio suppressors |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal fidelity with <1.0 μA leakage at 30 V and clamps to 48.4 V at 10 A, preventing damage to 3.3 V or 5 V microcontrollers and ADCs. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input lines, absorbing repetitive 500 W surges without degradation. Use Value: Enables robust operation in factory automation with 175 °C junction rating and AEC-Q101 reliability validation for extended service life. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Clamping |
Use Scenario: Shielding RS-485/RS-422 transceiver pins in base station backhaul modules from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Symmetrical clamping device placed differential-mode across data lines to suppress common-mode and differential-mode transients. Use Value: Bidirectional behavior ensures equal protection for both polarities of fast-rising transients, critical for full-duplex communication integrity. | Use Scenario: Suppressing switch-mode power supply turn-off spikes on AC mains input of smart home appliances (e.g., washing machines, HVAC controllers). IC Role / Device Role / Timing Role: Across-the-line TVS on bridge rectifier output to clamp 300 V+ transients generated by relay coil de-energization. Use Value: Withstands repeated 500 W pulses at 0.01 % duty cycle and maintains clamping stability over -55 °C to +175 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30CA | DO-214AC (SMA) package, 400 W PPPM, slightly higher VC (49.9 V @ 10 A) | Surface-mount layout; lower power rating limits surge repetition rate | Choose SMAJ30CA for space-constrained PCBs where reflow compatibility is required and 400 W suffices |
| P6KE30CA | DO-15 package, 600 W PPPM, higher VC (49.3 V @ 11.5 A), wider VBR range (33.3–36.8 V same) | Higher energy handling but larger DO-15 variant with longer leads; not AEC-Q101 qualified | Choose P6KE30CA when legacy through-hole designs require >500 W margin and automotive qualification is not mandatory |
Compared with SMAJ30CA and P6KE30CA, the SA30CA-E3/54 uniquely combines AEC-Q101 qualification, DO-15 through-hole compatibility, and precise 500 W/48.4 V clamping-making it optimal for new automotive and industrial designs requiring certified reliability without SMT conversion.
Availability
SA30CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer appliance power supply clamping requiring stable component supply and traceable sourcing.
Supply support for SA30CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SAxxCA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SA30CA-E3/54 at 10 A peak pulse current?
The SA30CA-E3/54 has a maximum clamping voltage (VC) of 48.4 V at 10 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and ensures predictable overvoltage limiting for protected circuits. The SA30CA-E3/54 achieves this with low incremental surge resistance, making it suitable for safeguarding sensitive 3.3 V or 5 V logic interfaces.
Is SA30CA-E3/54 suitable for automotive applications?
Yes, SA30CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, glass-passivated junction, and DO-15 mechanical robustness meet stringent automotive reliability requirements. The SA30CA-E3/54 is commonly deployed in engine control modules, body control units, and ADAS sensor interfaces where transient immunity and long-term stability are critical.
Does SA30CA-E3/54 have polarity markings?
No, SA30CA-E3/54 does not have polarity markings because it is a bidirectional TVS diode. Both terminals are functionally identical, allowing unrestricted orientation during board assembly. This symmetry simplifies layout and eliminates risk of incorrect placement-a key advantage over unidirectional variants like SA30A-E3/54, which feature a cathode band.
What is the maximum reverse leakage current of SA30CA-E3/54 at its stand-off voltage?
The SA30CA-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 30 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage preserves signal integrity in high-impedance sensor and communication lines, and remains stable across its full operating temperature range due to the glass-passivated junction structure used in the SA30CA-E3/54.
Can SA30CA-E3/54 be used in place of SA30A-E3/54?
No, SA30CA-E3/54 cannot be directly substituted for SA30A-E3/54 without circuit review. While both share the same VWM (30 V) and package (DO-15), SA30A-E3/54 is unidirectional and requires correct cathode orientation, whereas SA30CA-E3/54 is bidirectional with no polarity. Using SA30CA-E3/54 in a unidirectional design may alter clamping behavior during forward surges, and vice versa.
SA30CA-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 10A
- 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)
SA30CA-E3/54 FAQ
1.How can I place an order for SA30CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA30CA-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 SA30CA-E3/54 reliable?
The price and inventory of SA30CA-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 SA30CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA30CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA30CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA30CA-E3/54?
SA30CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA30CA-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 SA30CA-E3/54?
For technical support, including SA30CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA30CA-E3/54 requirements.
6.How does Aetrix verify that SA30CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA30CA-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 SA30CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA30CA-E3/54?
All SA30CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA30CA-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 SA30CA-E3/54 part is unused and in its original packaging.
Return procedure for SA30CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA30CA-E3/54 Tags
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