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Vishay General Semiconductor - Diodes Division P4KE100-E3/73
- Part No.:
- P4KE100-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE100-E3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
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Product details
Overview
P4KE100-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 85.5 V stand-off voltage (VWM), 95–105 V breakdown voltage (VBR) at 1 mA test current, 137 V maximum clamping voltage at 2.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P4KE100-E3/73 datasheet, P4KE100-E3/73 pinout, P4KE100-E3/73 application, or P4KE100-E3/73 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, junction temperature derating above 25 °C, thermal resistance (66 °C/W junction-to-lead), and compliance with AEC-Q101 for automotive-grade reliability.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1.0 μA reverse leakage at 85.5 V), but triggers avalanche conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance for consistent clamping performance across repetitive pulses.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), supports soldering up to 275 °C for 10 s, and meets UL 94 V-0 flammability requirements. Its unidirectional polarity-marked with cathode band-enables DC-biased protection on power rails and signal lines where polarity is fixed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's steady-state voltage. |
| VBR min/max | 95.0 V / 105 V at 1 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for reliable triggering. |
| VC @ IPPM | 137 V at 2.9 A - Clamped voltage during 10/1000 μs transient; must remain below protected device's absolute maximum rating. |
| PPPM | 400 W - Peak pulse power handling with standard 10/1000 μs waveform; determines survivability against defined surge events. |
| RθJL | 66 °C/W - Junction-to-lead thermal resistance; critical for estimating temperature rise under sustained power dissipation or repeated pulses. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TC, UHAST, and ESD. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads. Cathode indicated by color band on one end; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry terminal during forward conduction | Connected to lower-potential side of protected line (e.g., ground or return path); enables clamping to reference rail. |
| Cathode (banded lead) | Current exit terminal during reverse avalanche | Connected to higher-potential side (e.g., VCC or signal line); conducts transient energy to ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<1.0 μA), and long-term reliability under thermal cycling. |
| 400 W peak pulse power (10/1000 μs) | Provides robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) and ISO 7637-2 Pulse 1/2a surges without degradation. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring extended temperature and life-cycle validation. |
| UL 94 V-0 molding compound | Meets flame-retardant safety standards for enclosed industrial and consumer equipment enclosures. |
| Solderable per J-STD-002/JESD 22-B102 | Guarantees reliable wetting and joint integrity during wave or reflow assembly processes. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 16750-2) and alternator-induced spikes. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and chassis ground, triggered within <1 ns to clamp transients to ≤137 V. Use Value: Prevents damage to MCU power pins and internal LDOs by limiting overvoltage to safe margin below 16 V absolute maximum ratings. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC inputs against field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional P4KE100-E3/73 protects DC-coupled signal lines referenced to system ground. Use Value: Maintains signal integrity by suppressing >1 kV transients while adding <1 pF capacitance-negligible at <1 MHz bandwidth. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Front-end protection on AC/DC converter input stages in DSLAMs and base station power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device across bulk capacitor input, coordinated with MOVs for staged energy absorption. Use Value: Handles 400 W single-event surges without parametric shift, enabling compliance with ITU-T K.20 and GR-1089-CORE. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V USB-C PD adapter outputs to prevent damage during hot-plug or cable fault events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between output rail and ground, activated only during positive overvoltage excursions. Use Value: Clamps output to ≤137 V during 10/1000 μs faults, protecting downstream USB controller ICs rated to 20 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | DO-214AA package; 100 V VWM; 156 V VC @ 2.6 A; 600 W PPPM; lower RθJA (50 °C/W). | Higher power rating and surface-mount form factor suit automated PCB assembly and higher-energy surge environments. | Select SMBJ100A when board space allows SMD placement and surge energy exceeds 400 W capability of P4KE100-E3/73. |
| 1.5KE100A | DO-201AD package; same VWM/VBR/VC specs; 1500 W PPPM; 7.5 A IPPM; higher IFSM (100 A). | Designed for higher-energy transients (e.g., IEC 61000-4-5 Level 4); larger case requires more board area and manual assembly. | Choose 1.5KE100A for legacy through-hole designs needing >400 W surge immunity without changing layout footprint. |
Compared with SMBJ100A and 1.5KE100A, the P4KE100-E3/73 offers optimal balance of cost, DO-41 compatibility with existing axial-leaded designs, and AEC-Q101 qualification-making it preferred for automotive and industrial replacements where 400 W clamping suffices and RoHS-compliant commercial-grade reliability is required.
Availability
P4KE100-E3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P4KE100-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, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE100-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where precise clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the P4KE100-E3/73 under standard surge conditions?
The P4KE100-E3/73 has a maximum clamping voltage (VC) of 137 V when subjected to its rated peak pulse current of 2.9 A with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88365 and represents the upper voltage limit imposed on the protected circuit during transient events, ensuring compatibility with 12 V and 24 V system ICs rated to 16 V or higher absolute maximum.
Is the P4KE100-E3/73 suitable for automotive applications?
Yes, the P4KE100-E3/73 is AEC-Q101 qualified, confirming its reliability for automotive use cases such as engine control units, body electronics, and infotainment systems. Its operating junction temperature range of –55 °C to +175 °C, glass-passivated junction, and validated performance under temperature cycling and humidity testing meet automotive grade requirements specified in the standard.
How does the P4KE100-E3/73 differ from bidirectional TVS diodes like P4KE100CA?
The P4KE100-E3/73 is unidirectional and features a cathode band for polarity identification, making it suitable for DC-biased protection on power rails. In contrast, P4KE100CA is bidirectional with no polarity marking and symmetric clamping in both directions-used for AC lines or differential signals. Their VBR and VC values differ due to distinct test configurations and internal structure.
What is the thermal resistance specification for the P4KE100-E3/73, and why does it matter?
The P4KE100-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W. This parameter directly impacts temperature rise during repetitive surge events or elevated ambient conditions. For example, dissipating 1 W continuously raises junction temperature by ~66 °C above lead temperature-critical for derating calculations in sealed enclosures or high-temperature automotive zones.
Can the P4KE100-E3/73 be used in place of the older P4KE100A part?
Yes, the P4KE100-E3/73 is a RoHS-compliant, commercial-grade replacement for P4KE100A with identical electrical specifications, DO-41 packaging, and performance characteristics. The "E3/73" suffix denotes tape-and-reel packaging (73 = 2.5 kg reel) and JESD201 Class 1A whisker resistance, maintaining full functional and mechanical compatibility with legacy P4KE100A designs.
P4KE100-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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 2.8A
- 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)
P4KE100-E3/73 FAQ
1.How can I place an order for P4KE100-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE100-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 P4KE100-E3/73 reliable?
The price and inventory of P4KE100-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 P4KE100-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE100-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE100-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE100-E3/73?
P4KE100-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE100-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 P4KE100-E3/73?
For technical support, including P4KE100-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE100-E3/73 requirements.
6.How does Aetrix verify that P4KE100-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE100-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 P4KE100-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE100-E3/73?
All P4KE100-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE100-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 P4KE100-E3/73 part is unused and in its original packaging.
Return procedure for P4KE100-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE100-E3/73 Tags
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