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Vishay General Semiconductor - Diodes Division P6KA22AHE3/73
- Part No.:
- P6KA22AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA22AHE3/73.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,194
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Product details
Overview
P6KA22AHE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 20.9 V to 23.1 V breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 19.6 A peak pulse current, and operates up to +185 °C junction temperature - deployed in automotive power line and sensor interface protection.
For engineers reviewing the P6KA22AHE3/73 datasheet, P6KA22AHE3/73 pinout, P6KA22AHE3/73 application, or P6KA22AHE3/73 equivalent, key selection criteria include clamping voltage (30.6 V at 19.6 A), unidirectional polarity, DO-204AC (DO-15) package compatibility, AEC-Q101 qualification, and high-temperature reliability for under-hood automotive systems.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for automotive-grade environments where thermal cycling and long-term reliability are critical.
The device delivers low incremental surge resistance and fast response time to clamp transients induced by inductive load switching or ESD events. Clamping occurs at 30.6 V under 19.6 A (10/1000 μs), with only 1.0 μA reverse leakage at 18.8 V and 150 °C - enabling precise protection without system interference during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - ensures reliable triggering above nominal 18.8 V operating rail while avoiding false trips |
| VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA at 150 °C |
| VC @ IPPM | 30.6 V - clamping voltage limits downstream IC/MOSFET stress during 19.6 A surge |
| PPPM | 600 W - handles automotive load-dump and ISO 7637-2 pulse 5a/b energy without failure |
| TJ max. | +185 °C - supports placement near hot components (e.g., engine control units, power converters) |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronic components |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with RoHS-compliant matte tin plating |
Pinout & Package
DO-204AC (DO-15) molded epoxy package with axial leads; cathode denoted by color band on body; matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path during surge | Connected to protected circuit ground or low-side return; enables unidirectional clamping to ground |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V battery rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Stabilizes VBR drift across temperature and lifetime; critical for AEC-Q101 compliance |
| 185 °C junction rating | Enables direct mounting on high-temperature PCBs in engine compartments without derating |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120 V/350 ms without degradation |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes voltage overshoot during transients - protects 3.3 V/5 V logic interfaces downstream |
| HE3 suffix | Meets JESD 201 Class 2 whisker resistance - ensures long-term solder joint integrity |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control modules against load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to downstream regulators and microcontrollers rated for 36 V absolute max. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Line-side transient suppressor on 24 V sensor loop inputs exposed to relay switching noise. Use Value: Sub-1 ns response time and 1.0 μA leakage at 18.8 V ensure signal integrity and minimal offset error in precision measurement circuits. |
| Consumer Appliance Motor Drive Protection | Telecom Power Supply Input Protection |
Use Scenario: Shielding BLDC motor driver gate drivers from inductive kickback in smart HVAC systems. IC Role / Device Role / Timing Role: High-energy TVS placed across H-bridge supply pins to absorb flyback energy. Use Value: 75 A IFSM and 600 W PPPM sustain repeated commutation spikes without parametric shift or thermal runaway. |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs feeding base station backplanes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground on DC distribution bus. Use Value: 185 °C TJ rating allows operation in sealed, fanless enclosures where ambient exceeds 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5AT | Lower PPPM (400 W), same VWM (18.8 V), SMA package (surface-mount) | Not AEC-Q101 qualified; suited for commercial-grade PCBs with space constraints | Select when board area is limited and automotive qualification is not required |
| 1.5KE22A | Higher VC (35.5 V), same PPPM (600 W), DO-201 package (larger than DO-15) | Larger footprint and higher clamping voltage reduce protection margin for 3.3 V/5 V logic | Choose only if legacy DO-201 layout exists and clamping margin >4.9 V is acceptable |
Compared with SMAJ22A-E3/5AT and 1.5KE22A, the P6KA22AHE3/73 provides superior automotive qualification, tighter clamping (30.6 V vs. 35.5 V), and smaller DO-15 footprint - making it optimal for new AEC-Q101-compliant designs requiring high reliability in thermally demanding environments.
Availability
P6KA22AHE3/73 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and consumer appliance motor drive protection requiring stable component supply and full traceability.
Supply support for P6KA22AHE3/73 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 engineered for high reliability and extended temperature operation.
The P6KA22AHE3/73 belongs to Vishay's PAR® series of high-temperature TVS diodes, designed specifically for automotive and industrial applications where sustained operation above 150 °C and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the P6KA22AHE3/73 under peak surge conditions?
The P6KA22AHE3/73 has a maximum clamping voltage (VC) of 30.6 V at 19.6 A peak pulse current (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that downstream components see no more than 30.6 V during standardized surge events - critical for protecting 3.3 V, 5 V, and 12 V ICs in automotive and industrial systems.
Is the P6KA22AHE3/73 qualified for automotive use?
Yes, the P6KA22AHE3/73 is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature. It meets all stress tests defined in the AEC-Q101 standard, including high-temperature operating life, temperature cycling, and surge robustness - making it suitable for under-hood and transmission-control applications.
What does the HE3 suffix indicate on the P6KA22AHE3/73?
On the P6KA22AHE3/73, the HE3 suffix denotes RoHS-compliant construction with matte tin-plated leads that meet JESD 201 Class 2 whisker resistance requirements. It also confirms AEC-Q101 qualification and UL 94 V-0 compliant molding compound - essential for long-term reliability in vibration-prone automotive assemblies.
How does the P6KA22AHE3/73 differ from the non-A variant P6KA22?
The P6KA22AHE3/73 offers tighter VBR tolerance (20.9–23.1 V) versus P6KA22 (19.8–24.2 V), lower VC (30.6 V vs. 31.9 V), and improved consistency in clamping performance. Both share DO-204AC packaging and AEC-Q101 qualification, but the "A" variant is specified for higher-precision protection where voltage margin is constrained.
Can the P6KA22AHE3/73 be used in bidirectional configurations?
No, the P6KA22AHE3/73 is unidirectional only, with cathode marked by a color band. It conducts in reverse bias during overvoltage events and blocks forward current. For bidirectional protection, a separate device such as P6SMB22A or dual-diode array would be required - the P6KA22AHE3/73 must be oriented correctly in-circuit to function as intended.
P6KA22AHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KA22AHE3/73 FAQ
1.How can I place an order for P6KA22AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA22AHE3/73 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 P6KA22AHE3/73 reliable?
The price and inventory of P6KA22AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA22AHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA22AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA22AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA22AHE3/73?
P6KA22AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA22AHE3/73 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 P6KA22AHE3/73?
For technical support, including P6KA22AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA22AHE3/73 requirements.
6.How does Aetrix verify that P6KA22AHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA22AHE3/73 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 P6KA22AHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA22AHE3/73?
All P6KA22AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA22AHE3/73, 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 P6KA22AHE3/73 part is unused and in its original packaging.
Return procedure for P6KA22AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA22AHE3/73 Tags
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