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Vishay General Semiconductor - Diodes Division SA15CA-E3/54
- Part No.:
- SA15CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA15CA-E3/54.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,925
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Product details
Overview
SA15CA-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 500 W peak pulse power (10/1000 μs), 16.7–18.5 V breakdown voltage (VBR), 15 V stand-off voltage (VWM), 20.5 A peak pulse current (IPPM), and 24.4 V maximum clamping voltage (VC) at rated IPPM, enabling robust protection of MOSFETs and ICs in industrial and automotive sensor interfaces.
For engineers reviewing the SA15CA-E3/54 datasheet, SA15CA-E3/54 pinout, SA15CA-E3/54 application, or SA15CA-E3/54 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, DO-15 mechanical data, AEC-Q101 qualification status, and real-world use cases in inductive load switching and lighting surge environments - all confirmed from Vishay's official SA5.0A–SA170CA specification document (Rev. 27-Sep-2021, Doc. #88378).
Technical Context
This TVS diode operates symmetrically in both directions, with identical VBR min/max (16.7–18.5 V) and VC (24.4 V) specifications for positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs pulses at 0.01% duty cycle.
Rated for -55 °C to +175 °C junction temperature, it supports high-reliability deployment in under-hood automotive modules and industrial motor drives. The device exhibits a +16 mV/°C temperature coefficient of VBR, confirming predictable thermal drift across operating range - critical for precision clamping in wide-temperature applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA; defines safe operating window for signal/power line biasing. |
| VBR (min/max) | 16.7 V / 18.5 V - Breakdown initiates within this band at 1.0 mA test current; ensures consistent transient detection threshold. |
| VC @ IPPM | 24.4 V - Clamped voltage during 20.5 A 10/1000 μs surge; limits downstream component stress to safe levels. |
| PPPM | 500 W - Peak pulse power handling capability; sustains single or repetitive surges without degradation when derated per Fig. 2. |
| IPPM | 20.5 A - Maximum non-repetitive surge current supported; directly determines protection margin against IEC 61000-4-5 Level 4 events. |
| TJ max | +175 °C - Maximum junction temperature rating; enables operation in high-ambient environments such as engine control units. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47. |
Pinout & Package
SA15CA-E3/54 is housed in a DO-15 (DO-204AC) axial-leaded package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as input/output for clamping; no cathode band - eliminates orientation errors during manual or automated assembly. |
| Lead 1 / Lead 2 | Current-carrying interface to PCB | Leads support 275 °C solder dip (10 s max); compliant with JESD 22-B106; RoHS-compliant matte tin plating ensures reliable solder joint formation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 500 W peak pulse power (10/1000 μs) | Provides sufficient energy absorption for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 2 Ω/42 Ω coupling network surges. |
| AEC-Q101 qualified | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field performance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection effectiveness for sensitive CMOS inputs. |
| UL 94 V-0 molded epoxy case | Ensures flame-retardant housing integrity during fault conditions, meeting IPC-CC-830B and automotive flammability requirements. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensors from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (load dump up to 60 V) by clamping to ≤24.4 V while absorbing 500 W peak energy. |
Use Scenario: Safeguarding gate drivers and microcontrollers in variable-frequency drives exposed to relay contact bounce and coil de-energization spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus or logic-level control lines to suppress >1 kV, <100 ns transients induced by IGBT switching. Use Value: Limits voltage overshoot to 24.4 V at 20.5 A, preventing latch-up or oxide breakdown in 3.3 V/5 V logic circuits operating near thermal limits. |
| Telecom Line Surge Protection | Consumer Appliance Power Input |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges entering via RJ45 ports in outdoor base stations. IC Role / Device Role / Timing Role: First-stage protector in hybrid surge suppression circuit, working with GDTs and series impedance to divert >5 kA surges. Use Value: Responds in <1 ps to clamp common-mode transients to 24.4 V, preserving PHY functionality without disrupting 100BASE-TX timing margins. |
Use Scenario: Guarding AC-DC converter primary-side controllers in washing machines and HVAC systems against mains-borne surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Across-line (L-N) or line-to-ground placement to clamp differential-mode surges before reaching bridge rectifier and controller IC. Use Value: Withstands 500 W pulses at 10/1000 μs waveform, reducing risk of controller reset or MOSFET avalanche failure during brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same VWM (15 V) and VC (24.4 V), but SMC (DO-214AB) package; 600 W PPPM; lower thermal resistance (1.2 °C/W vs. DO-15's ~50 °C/W). | Preferred where board space allows surface-mount layout and higher surge repetition rate is required. | Select SMBJ15CA when upgrading from through-hole to SMT for improved power density and thermal performance in high-volume production. |
| P6KE15CA | Same DO-15 package and VWM/VBR specs, but lower PPPM (600 W) and higher VC (25.5 V); legacy series with wider VBR tolerance (±10%). | Suitable for cost-sensitive consumer applications where AEC-Q101 is not mandated. | Choose P6KE15CA only if AEC-Q101 qualification is unnecessary and 1.1 V higher clamping voltage is acceptable in system-level margin analysis. |
Compared with SMBJ15CA and P6KE15CA, SA15CA-E3/54 offers AEC-Q101 qualification and tighter VBR tolerance (±5.5%) in the proven DO-15 through-hole form factor - making it the preferred choice for automotive and industrial designs requiring traceable reliability and consistent clamping behavior across temperature and life cycle.
Availability
SA15CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive protection, telecom line surge suppression, and consumer appliance power input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SA15CA-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 application-specific optimization.
The SAxxCA series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where voltage spikes from inductive switching or lightning must be reliably clamped without degradation.
FAQ
What is the breakdown voltage range for SA15CA-E3/54?
The SA15CA-E3/54 has a guaranteed breakdown voltage (VBR) range of 16.7 V to 18.5 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight ±5.5% tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for maintaining protection margins in safety-critical automotive ECUs where SA15CA-E3/54 is commonly deployed.
Is SA15CA-E3/54 suitable for automotive applications?
Yes - SA15CA-E3/54 is explicitly AEC-Q101 qualified per Vishay's documentation (Doc. #88378, Rev. 27-Sep-2021), having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD. Its DO-15 package, 175 °C max junction temperature, and stable bidirectional clamping make SA15CA-E3/54 appropriate for engine control, body electronics, and ADAS sensor interfaces subject to ISO 7637-2 and ISO 16750-2 requirements.
How does the clamping voltage of SA15CA-E3/54 compare to its stand-off voltage?
SA15CA-E3/54 has a 15 V stand-off voltage (VWM) and clamps to 24.4 V at its rated 20.5 A peak pulse current (IPPM). This 9.4 V differential reflects low incremental surge resistance and ensures protected circuits remain well below absolute maximum ratings - for example, keeping a 24 V-rated microcontroller input within safe operating limits during a 1 kV surge event where SA15CA-E3/54 activates.
Does SA15CA-E3/54 have polarity markings?
No - SA15CA-E3/54 is a bidirectional TVS diode with symmetrical construction; there is no cathode band or polarity marking on the DO-15 package. Both leads are electrically identical, allowing flexible placement across differential lines or supply rails without orientation constraints - a key design simplification confirmed in Vishay's SA5.0A–SA170CA datasheet section "Polarity".
What is the maximum junction temperature rating for SA15CA-E3/54?
The SA15CA-E3/54 is rated for a maximum junction temperature (TJ) of +175 °C, validated per JEDEC standards and documented in the "Maximum Ratings" table of Vishay's official datasheet. This high-temperature capability supports reliable operation in under-hood automotive modules and industrial motor drives where ambient temperatures exceed 125 °C - ensuring SA15CA-E3/54 maintains clamping integrity without thermal runaway.
SA15CA-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 20.5A
- 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)
SA15CA-E3/54 FAQ
1.How can I place an order for SA15CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA15CA-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 SA15CA-E3/54 reliable?
The price and inventory of SA15CA-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 SA15CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA15CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA15CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA15CA-E3/54?
SA15CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA15CA-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 SA15CA-E3/54?
For technical support, including SA15CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA15CA-E3/54 requirements.
6.How does Aetrix verify that SA15CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA15CA-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 SA15CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA15CA-E3/54?
All SA15CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA15CA-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 SA15CA-E3/54 part is unused and in its original packaging.
Return procedure for SA15CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA15CA-E3/54 Tags
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