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Vishay General Semiconductor - Diodes Division SA5.0CAHE3/54
- Part No.:
- SA5.0CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0CAHE3/54.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,327
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Product details
Overview
SA5.0CAHE3/54 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), 6.4–7.25 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 μs), 54.3 A peak pulse current (IPPM), and clamps to ≤9.2 V at rated current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the SA5.0CAHE3/54 datasheet, SA5.0CAHE3/54 pinout, SA5.0CAHE3/54 application, or SA5.0CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, low clamping voltage (VC ≤ 9.2 V), and 175 °C max junction temperature for under-hood or high-reliability embedded systems.
Technical Context
The SA5.0CAHE3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bidirectional structure eliminates polarity marking and enables use across AC-coupled or floating signal paths without orientation constraints.
It meets AEC-Q101 stress testing requirements and supports repetitive surge events at 0.01% duty cycle. The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse voltage before conduction begins; defines operating window for protected circuitry |
| VBR (min/max) | 6.4 V / 7.25 V - guaranteed avalanche initiation range at 10 mA test current; ensures predictable turn-on threshold |
| VC @ IPPM | ≤9.2 V - clamped voltage at 54.3 A peak pulse; determines worst-case overvoltage seen by downstream ICs |
| PPPM | 500 W - peak transient power handling with 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surge events |
| TJ max | +175 °C - maximum junction temperature; enables deployment in engine control units and high-ambient industrial enclosures |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package with 0.130" diameter body; compatible with legacy through-hole assembly |
| Qualification | AEC-Q101 qualified (HE3 suffix) - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
SA5.0CAHE3/54 uses a DO-15 (DO-204AC) axial-leaded package with no polarity marking - consistent with bidirectional TVS function. Leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102; maximum solder dip temperature is 275 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional avalanche junction terminals | Electrically symmetrical - either lead may connect to line or ground; no cathode band; enables flexible PCB layout |
| Lead 1 | Current path input during positive transient | Conducts surge current toward ground when line voltage exceeds +VBR; same behavior as Lead 2 during negative transient |
| Lead 2 | Current path input during negative transient | Conducts surge current toward ground when line voltage falls below –VBR; identical clamping performance to Lead 1 |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling and humidity stress |
| 500 W peak pulse power (10/1000 μs) | Supports Level 4 IEC 61000-4-5 surge immunity (4 kV line-to-line, 2 kV line-to-ground) in properly designed circuits |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect field performance |
| Low clamping voltage (VC ≤ 9.2 V) | Protects 5 V logic interfaces (e.g., CAN transceivers, LIN drivers) without violating absolute maximum ratings of downstream ICs |
| UL 94 V-0 molded epoxy case | Meets flammability safety requirements for enclosed industrial and transportation equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor line and ground, absorbing transients before they reach ADC front-end or signal conditioner. Use Value: Prevents sensor data corruption and microcontroller reset events caused by >100 V spikes; leverages SA5.0CAHE3/54's 175 °C rating for under-hood placement. | Use Scenario: Shielding digital input channels on programmable logic controllers from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Line-side TVS mounted at connector entry point, shunting fast-rising transients (>1 kV/μs) to chassis ground before reaching optocoupler or Schmitt trigger input stage. Use Value: Maintains functional safety integrity per IEC 61000-4-4/5; SA5.0CAHE3/54's 500 W rating handles repeated 2 kV surges without degradation. |
| Consumer USB Port Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in set-top boxes and smart displays against ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at USB connector, minimizing trace length to preserve signal integrity. Use Value: Clamps ±8 kV contact ESD (IEC 61000-4-2) within nanoseconds while adding <0.5 pF parasitic capacitance - verified via Fig. 6 in datasheet. | Use Scenario: Protecting RS-485 transceiver inputs in base station backhaul equipment exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression device on differential pair, coordinated with common-mode chokes and secondary TVS for full-duplex line resilience. Use Value: Withstands 10/1000 μs surges up to 500 W without failure; SA5.0CAHE3/54's DO-15 footprint allows easy integration into existing telecom board layouts. |
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 | Unidirectional; SMA package (surface-mount); slightly higher VBR min (6.4 V) but same VC (9.2 V); lower IPPM (46.9 A) | Requires polarity-aware layout; better suited for space-constrained PCBs where through-hole is impractical | Select SMAJ5.0A only if surface-mount assembly is mandatory and unidirectional protection suffices |
| P6SMB5.0A | Unidirectional; SMB package; same VWM/VBR/VC specs; identical 500 W rating; RoHS-compliant but not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use where AEC-Q101 is not required | Choose P6SMB5.0A for cost-sensitive non-automotive designs needing same electrical performance without qualification overhead |
Compared with SMAJ5.0A and P6SMB5.0A, SA5.0CAHE3/54 uniquely combines bidirectional operation, AEC-Q101 qualification, and DO-15 through-hole compatibility - making it the only option among the three for automotive-grade, polarity-agnostic, serviceable surge protection in legacy or mixed-technology assemblies.
Availability
SA5.0CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for SA5.0CAHE3/54 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 efficiency, and automotive-grade validation.
The SAxxCA series is part of Vishay's TransZORB® TVS platform, engineered specifically for bidirectional transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding high surge immunity and extended temperature operation.
FAQ
What is the clamping voltage of SA5.0CAHE3/54 at its rated peak pulse current?
The SA5.0CAHE3/54 has a maximum clamping voltage (VC) of 9.2 V when subjected to its rated peak pulse current (IPPM) of 54.3 A using a 10/1000 μs waveform. This value is measured per Figure 9 in the Vishay datasheet 88378 and ensures protected circuits remain within safe voltage margins during surge events. The SA5.0CAHE3/54 maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is SA5.0CAHE3/54 suitable for automotive applications?
Yes, SA5.0CAHE3/54 is AEC-Q101 qualified (denoted by the HE3 suffix), having passed stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. Its 175 °C maximum junction temperature and DO-15 mechanical robustness make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The SA5.0CAHE3/54 is explicitly listed in Vishay's AEC-Q101 qualified product table.
Does SA5.0CAHE3/54 have polarity markings on the package?
No, SA5.0CAHE3/54 does not feature a cathode band or other polarity marking because it is a bidirectional TVS diode. Both leads are functionally identical - the device clamps symmetrically for positive and negative transients. This eliminates orientation errors during manual or automated assembly and simplifies layout for AC-coupled or floating signal lines. The absence of marking is confirmed in the "Polarity" section of datasheet 88378.
What is the peak pulse power rating of SA5.0CAHE3/54 and under what conditions?
The SA5.0CAHE3/54 is rated for 500 W peak pulse power dissipation using the standard 10/1000 μs double-exponential waveform per REA and IEC 61000-4-5. This rating applies at TA = 25 °C and assumes a maximum duty cycle of 0.01 %. Derating is required above 25 °C ambient, per Figure 2 in datasheet 88378. The SA5.0CAHE3/54 achieves this rating via low incremental surge resistance and optimized chip geometry.
How does SA5.0CAHE3/54 differ from unidirectional variants like SA5.0AHE3/54?
SA5.0CAHE3/54 is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas SA5.0AHE3/54 is unidirectional with a cathode band and conducts only during reverse-biased transients. Their VWM (5.0 V), VBR (6.4–7.25 V), and VC (9.2 V) are identical, but SA5.0AHE3/54 supports forward surge current (IFSM = 70 A) - a parameter irrelevant to SA5.0CAHE3/54. The SA5.0CAHE3/54 is selected when AC signals, floating buses, or polarity-agnostic protection is required.
SA5.0CAHE3/54 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:
- -
- 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)
SA5.0CAHE3/54 FAQ
1.How can I place an order for SA5.0CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0CAHE3/54 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 SA5.0CAHE3/54 reliable?
The price and inventory of SA5.0CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0CAHE3/54 is usually 5 days.
3.What payment methods are accepted for SA5.0CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0CAHE3/54?
SA5.0CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0CAHE3/54 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 SA5.0CAHE3/54?
For technical support, including SA5.0CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0CAHE3/54 requirements.
6.How does Aetrix verify that SA5.0CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA5.0CAHE3/54 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 SA5.0CAHE3/54 meets industry standards.
7.What is the process for return or replacement of SA5.0CAHE3/54?
All SA5.0CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0CAHE3/54, 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 SA5.0CAHE3/54 part is unused and in its original packaging.
Return procedure for SA5.0CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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