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Vishay General Semiconductor - Diodes Division SA6.5CHE3/73
- Part No.:
- SA6.5CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA6.5CHE3/73.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,911
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Product details
Overview
SA6.5CHE3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 44.7 A peak pulse current (IPPM), 11.2 V maximum clamping voltage (VC) at IPPM, and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SA6.5CHE3/73 datasheet, SA6.5CHE3/73 pinout, SA6.5CHE3/73 application, or SA6.5CHE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-15 mechanical data, clamping performance under surge conditions, and direct alternatives for circuit protection design-in.
Technical Context
The SA6.5CHE3/73 operates as a bi-directional avalanche diode, symmetrically clamping positive and negative transients above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling consistent response to repetitive 10/1000 μs surges at 0.01 % duty cycle.
It is rated for -55 °C to +175 °C operating junction temperature, supports 275 °C solder dip (10 s), and meets JESD 201 Class 2 whisker resistance (HE3 suffix). No polarity marking is present - confirming bi-directional construction per Vishay's SAxxCA family designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - tight 5 % tolerance ensures predictable turn-on across production lots |
| VC @ IPPM | 11.2 V at 44.7 A - clamping voltage during 10/1000 μs transient; limits stress on downstream components |
| PPPM | 500 W - peak transient energy absorption capability under standard 10/1000 μs waveform |
| ID @ VWM | 400 μA - low leakage at stand-off voltage preserves signal integrity in high-impedance circuits |
| TJ max. | +175 °C - extended thermal range supports under-hood automotive and industrial environments |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SA6.5CHE3/73 uses the DO-204AC (DO-15) axial-leaded package: molded epoxy body, matte tin-plated leads, UL 94 V-0 rated compound, and no polarity marking - consistent with bi-directional TVS construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between leads; interchangeable in PCB layout |
| Lead 1 | Terminal | Matte tin-plated, solderable per J-STD-002; supports wave/soldering up to 275 °C for 10 s |
| Lead 2 | Terminal | Identical to Lead 1; enables bidirectional mounting without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| 500 W peak pulse power (10/1000 μs) | Handles common lightning-induced and inductive-switching transients without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio suppressors |
| DO-204AC mechanical robustness | Withstands board flex and thermal cycling per JESD22-A108; lead bond strength >5 g |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O against load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role: Bi-directional transient clamp on power rail and signal line inputs. Use Value: Clamps 11.2 V at 44.7 A, preventing latch-up or gate oxide damage in 5 V-tolerant automotive MCUs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input modules. IC Role / Device Role: Low-leakage (400 μA) transient suppressor placed directly at connector entry point. Use Value: Maintains signal fidelity during ESD events while surviving repeated 500 W surges per ISO 7637-2 Pulse 1/2a. |
| Consumer Appliance Motor Control | Telecom Power Supply Input Stage |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machine control boards. IC Role / Device Role: Primary clamping device across motor driver half-bridge supply rails. Use Value: Withstands 70 A non-repetitive forward surge (IFSM) and dissipates 500 W transient energy without failure. |
Use Scenario: Front-end protection of AC/DC adapter inputs against lightning-induced surges per IEC 61000-4-5 Level 3. IC Role / Device Role: First-stage TVS on primary-side rectifier output before bulk capacitor. Use Value: 175 °C max junction temperature allows operation near hot transformers; DO-15 footprint fits compact layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6.5CAHE3/A | Same VWM (6.5 V), identical DO-214AC (SMA) package; 10 % higher VC (12.3 V) due to different junction geometry | Surface-mount alternative requiring PCB redesign; better thermal dissipation in high-density layouts | Select when automated assembly and space constraints favor SMD over axial DO-15 |
| P6KE6.8CA | Higher VWM (6.8 V), same DO-204AC package; 10 % lower PPPM (400 W); ±10 % VBR tolerance vs. ±5 % for SA6.5CHE3/73 | General-purpose industrial use where AEC-Q101 is not required; lower cost but reduced precision | Choose for non-automotive applications where tighter VBR control and automotive qualification are unnecessary |
Compared with SMA6.5CAHE3/A and P6KE6.8CA, SA6.5CHE3/73 offers superior VBR tolerance (±5 %), AEC-Q101 validation, and optimal clamping ratio (11.2 V/7.6 V ≈ 1.47) - making it preferred for safety-critical automotive and high-reliability industrial designs where axial mounting is acceptable.
Availability
SA6.5CHE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, consumer appliance motor controllers, and telecom power supply front-ends requiring stable component supply and long-term lifecycle support.
Supply support for SA6.5CHE3/73 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, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SAxxCHE3 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, repeatable transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the polarity configuration of SA6.5CHE3/73?
SA6.5CHE3/73 is a bi-directional TVS diode with no polarity marking on the DO-204AC package. Both leads are functionally identical, allowing installation in either orientation. This symmetry enables clamping of both positive and negative transients - confirmed by its "CA" suffix and specification of matched VBR in both directions.
Is SA6.5CHE3/73 qualified for automotive applications?
Yes, SA6.5CHE3/73 carries the HE3 suffix, indicating AEC-Q101 qualification per Vishay's ordering nomenclature. It has undergone stress testing including temperature cycling, highly accelerated life testing (HALT), and surge endurance - validating suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of SA6.5CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of SA6.5CHE3/73 is 11.2 V at 44.7 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value represents the upper limit of voltage imposed on protected circuitry during standardized transient events - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces.
How does SA6.5CHE3/73 differ from uni-directional SA6.5A variants?
SA6.5CHE3/73 is bi-directional with no cathode band and symmetrical VBR (7.22–7.98 V) in both polarities, whereas SA6.5A is uni-directional with a cathode band and specified VF (3.5 V) only in forward bias. SA6.5CHE3/73 cannot replace SA6.5A in DC-biased circuits requiring unidirectional conduction - their electrical roles are fundamentally distinct.
What packaging and compliance standards apply to SA6.5CHE3/73?
SA6.5CHE3/73 uses DO-204AC (DO-15) packaging with RoHS-compliant matte tin-plated leads and UL 94 V-0 epoxy molding. The HE3 suffix confirms JESD 201 Class 2 whisker resistance and AEC-Q101 qualification - meeting automotive and industrial requirements for long-term reliability and process compatibility.
SA6.5CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 40.7A
- 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)
SA6.5CHE3/73 FAQ
1.How can I place an order for SA6.5CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA6.5CHE3/73 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 SA6.5CHE3/73 reliable?
The price and inventory of SA6.5CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6.5CHE3/73 is usually 5 days.
3.What payment methods are accepted for SA6.5CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6.5CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA6.5CHE3/73?
SA6.5CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA6.5CHE3/73 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 SA6.5CHE3/73?
For technical support, including SA6.5CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6.5CHE3/73 requirements.
6.How does Aetrix verify that SA6.5CHE3/73 is sourced from the original manufacturer or authorized distributors?
All SA6.5CHE3/73 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 SA6.5CHE3/73 meets industry standards.
7.What is the process for return or replacement of SA6.5CHE3/73?
All SA6.5CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA6.5CHE3/73, 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 SA6.5CHE3/73 part is unused and in its original packaging.
Return procedure for SA6.5CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA6.5CHE3/73 Tags
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