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Vishay General Semiconductor - Diodes Division P4KE180-E3/73
- Part No.:
- P4KE180-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE180-E3/73.pdf
- Description:
- TVS DIODE 146VWM 258VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,065
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Product details
Overview
P4KE180-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level overvoltage protection. It features a 154 V standoff voltage (VWM), 171–189 V breakdown range (VBR at 1.0 mA), 246 V maximum clamping voltage (VC) at 1.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed to safeguard MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and automotive systems.
For engineers reviewing the P4KE180-E3/73 datasheet, P4KE180-E3/73 pinout, P4KE180-E3/73 application, or P4KE180-E3/73 equivalent, this page delivers verified electrical parameters, DO-41 terminal mapping, real-world protection use cases, and validated alternative parts for ESD/surge design validation and BOM continuity planning.
Technical Context
The P4KE180-E3/73 operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltages and low incremental surge resistance for stable clamping under repetitive surges. Its unidirectional polarity uses a cathode band marking and supports DC-biased protection paths where reverse conduction must be blocked.
Rated for 175 °C maximum junction temperature and compliant with AEC-Q101 (E3 suffix denotes RoHS-compliant commercial grade), it sustains 1.5 W steady-state power dissipation on infinite heatsink and withstands 40 A non-repetitive forward surge (8.3 ms half-sine) - confirming suitability for high-energy transient suppression in power supply rails and motor drive interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 154 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (Breakdown Voltage) | 171–189 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 246 V at 1.6 A (10/1000 μs) - Peak voltage seen by protected circuit during rated surge; limits stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability per transient event; validates robustness against IEC 61000-4-5 Level 3 surges. |
| IPPM (Peak Pulse Current) | 1.6 A - Maximum surge current handled at rated clamping voltage; determines minimum series impedance required. |
| TJmax | 175 °C - Enables operation in under-hood automotive and industrial ambient environments without thermal derating failure. |
| RθJL | 66 °C/W - Junction-to-lead thermal resistance supports reliable heat transfer through PCB copper pour or lead frame. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads solderable per J-STD-002; meets UL 94 V-0 flammability rating. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-impedance surge return | Connected to ground or low-side reference; carries full surge current during clamping. |
| Cathode | Protected line connection / high-impedance blocking node | Connected to signal/power line being protected; blocks reverse leakage up to 154 V. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable avalanche characteristics and long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| AEC-Q101 qualified (E3 suffix) | Confirms qualification for automotive electronics applications including engine control and body modules. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during transient events, reducing risk of downstream component damage. |
| 175 °C max junction temperature | Supports operation in high-ambient environments such as power converters and motor drives. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going spikes above 154 V. Use Value: Limits peak voltage to 246 V during 1.6 A surges, preventing latch-up or gate oxide rupture in microcontrollers and CAN transceivers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair to shunt fast transients without distorting millivolt-level signals. Use Value: Sub-1 ns response time and 1.0 μA leakage at 154 V preserve signal integrity and measurement accuracy in 16-bit ADC front-ends. |
| Motor Drive Gate Driver Protection | Telecom Power Supply Input Stage |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes during switching. IC Role / Device Role / Timing Role: TVS mounted between gate and source to clamp dv/dt-induced overshoot exceeding VGS(max). Use Value: 246 V clamping voltage prevents gate oxide breakdown while allowing normal 10–15 V gate drive swing. |
Use Scenario: Front-end surge suppression on AC/DC adapter inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary unidirectional TVS on rectified DC bus to absorb 400 W pulses before bulk capacitor and controller IC. Use Value: 400 W rating handles multiple IEC 61000-4-5 combination wave surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | DO-214AA package; 180 V VBR, 292 V VC at 1.37 A; lower clamping ratio (1.62) but higher surge current rating. | Better suited for space-constrained PCBs requiring surface-mount assembly; not axial-leaded. | Select SMBJ180A when board layout mandates SMD placement and thermal management via copper area is available. |
| 1N5388B | DO-41 package; 180 V Zener voltage, 5 W steady-state power; no specified 10/1000 μs surge rating or clamping data. | Limited to low-energy regulation; lacks TVS-specific surge endurance and fast response. | Use 1N5388B only for DC voltage reference or low-power overvoltage limiting - not for transient suppression. |
Compared with SMBJ180A and 1N5388B, the P4KE180-E3/73 uniquely combines axial DO-41 form factor, AEC-Q101 qualification, 400 W surge rating, and verified 246 V clamping performance - making it the preferred choice for through-hole industrial and automotive transient protection where legacy mounting and proven surge margin are critical.
Availability
P4KE180-E3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface guarding, and motor drive gate driver safeguarding requiring stable component supply across multi-year production cycles.
Supply support for P4KE180-E3/73 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, power handling, and automotive-grade qualification.
The P4KE180-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the clamping voltage of the P4KE180-E3/73 under standard test conditions?
The P4KE180-E3/73 has a maximum clamping voltage (VC) of 246 V when subjected to a 10/1000 μs waveform at 1.6 A peak pulse current. This value is measured per JEDEC standards and reflects the highest voltage the protected circuit will experience during a defined transient event - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P4KE180-E3/73 suitable for automotive applications?
Yes, the P4KE180-E3/73 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and powertrain applications. Its glass-passivated junction and 400 W surge capability meet stringent automotive transient immunity requirements, including ISO 7637-2 and ISO 16750-2 pulse tests.
How does the P4KE180-E3/73 differ from bidirectional TVS diodes like P4KE180CA?
The P4KE180-E3/73 is unidirectional and features a cathode band for polarity identification, blocking reverse current up to 154 V. In contrast, P4KE180CA is bidirectional with symmetrical clamping in both directions and no polarity marking - used where AC-coupled or floating signal lines require protection against bipolar transients.
What is the thermal resistance of the P4KE180-E3/73, and how does it affect PCB layout?
The P4KE180-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W. To maintain reliability during repetitive surges, PCB traces connected to its leads should provide adequate copper area for heat spreading - especially important when operating near its 1.5 W steady-state power limit at elevated ambient temperatures.
Can the P4KE180-E3/73 replace older P4KE180A variants without design changes?
Yes, the P4KE180-E3/73 is a direct replacement for legacy P4KE180A parts with identical electrical specifications, DO-41 mechanical outline, and cathode band marking. The "E3/73" suffix indicates RoHS-compliant commercial-grade packaging with JESD 201 Class 1A whisker resistance - no PCB or schematic modifications are required.
P4KE180-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 1.6A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE180-E3/73 FAQ
1.How can I place an order for P4KE180-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE180-E3/73 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 P4KE180-E3/73 reliable?
The price and inventory of P4KE180-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE180-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE180-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE180-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE180-E3/73?
P4KE180-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE180-E3/73 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 P4KE180-E3/73?
For technical support, including P4KE180-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE180-E3/73 requirements.
6.How does Aetrix verify that P4KE180-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE180-E3/73 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 P4KE180-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE180-E3/73?
All P4KE180-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE180-E3/73, 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 P4KE180-E3/73 part is unused and in its original packaging.
Return procedure for P4KE180-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE180-E3/73 Tags
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