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Vishay General Semiconductor - Diodes Division SA90CAHE3/54
- Part No.:
- SA90CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA90CAHE3/54.pdf
- Description:
- TVS DIODE 90VWM 146VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,126
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Product details
Overview
SA90CAHE3/54 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 54 V standoff voltage (VWM), 60 V minimum breakdown voltage (VBR), 500 W peak pulse power (10/1000 μs), 3.4 A peak pulse current (IPPM), and AEC-Q101 qualification for automotive-grade reliability in harsh environments.
For engineers reviewing the SA90CAHE3/54 datasheet, SA90CAHE3/54 pinout, SA90CAHE3/54 application, or SA90CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, 175 °C max junction temperature, low clamping voltage (VC = 146 V at IPPM), and RoHS-compliant AEC-Q101 qualification for automotive electronics protection.
Technical Context
This TVS diode operates symmetrically in both directions, with identical VBR (60–66.3 V), VC (146 V), and ID (1.0 μA) specifications for reverse and forward quadrants. Its glass-passivated junction ensures stable breakdown behavior and fast response (<1 ns) to ESD and lightning-induced surges.
The device uses a unidirectional-like chip structure configured as bidirectional via internal back-to-back diode arrangement - confirmed by absence of polarity marking and matched VBR min/max in both directions per datasheet Table on page 2. Thermal derating follows standard DO-15 lead-temperature curves (Fig. 5), supporting 3.0 W steady-state dissipation at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 60 V - guaranteed breakdown initiates no lower than this, ensuring margin above VWM |
| VC @ IPPM | 146 V - clamped voltage during 3.4 A 10/1000 μs surge, defining protected circuit stress level |
| PPPM | 500 W - peak transient energy handling capacity under standardized surge waveform |
| ID @ VWM | 1.0 μA - leakage current at rated standoff, critical for low-power sensor line integrity |
| TJ max | +175 °C - enables operation in under-hood automotive or industrial high-temp environments |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. No polarity marking - bidirectional symmetry confirmed per datasheet note "no marking on bidirectional types".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked ends) | Bidirectional terminal pair | Internally connected back-to-back; either end functions identically - no cathode band required |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable breakdown voltage with <±5 % VBR tolerance and minimal drift over life |
| 500 W 10/1000 μs rating | Protects against IEC 61000-4-5 Level 3 (1 kV surge) on 50 Ω source impedance lines |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| DO-15 mechanical standard | Ensures drop-in replacement compatibility with legacy PCB footprints and automated insertion equipment |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and transportation enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus or 12 V power rails in automotive door modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and ground, absorbing surge energy without affecting normal DC bias. Use Value: With 54 V VWM and 146 V VC, it safeguards downstream 48 V tolerant CAN/LIN transceivers while surviving repeated 100 V/500 W pulses per AEC-Q101 stress profiles. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure or temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) bidirectional shunt clamp across signal and return, activated only during >60 V transients. Use Value: Maintains signal fidelity during normal operation due to sub-μA leakage, while clamping ESD events (IEC 61000-4-2 ±8 kV contact) within safe voltage margins for precision ADC front-ends. |
| Telecom Line Surge Suppression | Consumer Appliance Motor Control Protection |
Use Scenario: Safeguarding Ethernet PHY interface power pins (e.g., PoE midspan injectors) against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, diverting surge current to chassis ground before reaching IC-level protection. Use Value: 500 W rating and 146 V clamping enable compliance with ITU-T K.20/21 secondary protection requirements for telecom infrastructure equipment. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Across-motor terminals or between motor supply and ground, clamping inductive kickback exceeding 54 V. Use Value: DO-15 package allows direct mounting near motor terminals; 175 °C TJ rating supports sustained operation near heat-generating motor windings and controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54CA | Same VWM (54 V), but SMA package (surface-mount); 400 W PPPM vs. 500 W | Requires PCB rework for SMT layout; lower power rating limits use in high-energy surge zones | Select when board space is constrained and surge threat level is ≤400 W (e.g., secondary protection) |
| P6KE54CA | Same DO-15 package and 54 V VWM, but 600 W PPPM and higher IPPM (4.4 A); larger DO-204AL body | Physically longer (1.0" min vs. 0.258" SA90CAHE3/54), may not fit existing DO-15 cutouts | Select when higher surge margin is needed and mechanical envelope permits longer leads |
Compared with SMAJ54CA and P6KE54CA, SA90CAHE3/54 offers optimal balance of 500 W surge capability, strict DO-15 footprint compliance, and AEC-Q101 qualification - making it preferred for automotive and industrial designs where qualification, form factor, and defined energy handling are jointly critical.
Availability
SA90CAHE3/54 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and telecom line surge suppression requiring stable component supply across production lifecycles.
Supply support for SA90CAHE3/54 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 qualification.
The SAxxCA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and precise clamping performance are mandatory.
FAQ
What does the "HE3/54" suffix mean in SA90CAHE3/54?
The HE3 suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; the "/54" denotes packaging in 13" paper tape and reel with 4000-unit quantity per reel. This distinguishes SA90CAHE3/54 from commercial-grade E3 variants and confirms its suitability for automotive production use.
Is SA90CAHE3/54 unidirectional or bidirectional, and how is polarity identified?
SA90CAHE3/54 is a bidirectional TVS diode, as confirmed by the "CA" suffix and explicit datasheet statement: "for bidirectional types, no marking on bidirectional types." It has symmetrical electrical characteristics in both directions - identical VBR min/max, VC, and ID - and requires no cathode band or orientation during placement.
What is the clamping voltage of SA90CAHE3/54 under surge conditions?
The clamping voltage (VC) of SA90CAHE3/54 is 146 V at its rated peak pulse current (IPPM) of 3.4 A, measured with a 10/1000 μs waveform. This value defines the maximum voltage imposed on protected circuitry during a standardized surge event and is verified per Figure 9 in the Vishay datasheet 88378.
Can SA90CAHE3/54 replace SA90A in an existing design?
No - SA90CAHE3/54 is bidirectional while SA90A is unidirectional; they differ in polarity configuration, forward voltage behavior, and surge response symmetry. Substitution would require validation of reverse-conduction paths and may compromise protection in circuits relying on unidirectional blocking. Always verify schematic topology before interchange.
Does SA90CAHE3/54 meet automotive qualification standards?
Yes, SA90CAHE3/54 is explicitly AEC-Q101 qualified per datasheet Note (1) on page 3 and ordering information footnote. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge - confirming suitability for automotive powertrain, body, and ADAS applications.
SA90CAHE3/54 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA90CAHE3/54 FAQ
1.How can I place an order for SA90CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA90CAHE3/54 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 SA90CAHE3/54 reliable?
The price and inventory of SA90CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA90CAHE3/54 is usually 5 days.
3.What payment methods are accepted for SA90CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA90CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA90CAHE3/54?
SA90CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA90CAHE3/54 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 SA90CAHE3/54?
For technical support, including SA90CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA90CAHE3/54 requirements.
6.How does Aetrix verify that SA90CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA90CAHE3/54 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 SA90CAHE3/54 meets industry standards.
7.What is the process for return or replacement of SA90CAHE3/54?
All SA90CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA90CAHE3/54, 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 SA90CAHE3/54 part is unused and in its original packaging.
Return procedure for SA90CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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