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Vishay General Semiconductor - Diodes Division P4KE100HE3/73
- Part No.:
- P4KE100HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE100HE3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,405
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Product details
Overview
P4KE100HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit protection against ESD and surge events. It features 100 V standoff voltage (VWM), 137 V clamping voltage at 2.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform. Used to safeguard MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the P4KE100HE3/73 datasheet, P4KE100HE3/73 pinout, P4KE100HE3/73 application, or P4KE100HE3/73 equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, junction temperature derating above 25 °C, AEC-Q101 qualification status, and DO-41 lead-form compatibility with through-hole PCB layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 85.5 V), but conducts heavily when transient voltage exceeds its 95–105 V breakdown range (tested at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance.
Designed for single-pulse transients (e.g., inductive switch-off, lightning-induced surges), it supports repetitive operation only at ≤0.01% duty cycle. Thermal performance is defined by 66 °C/W junction-to-lead resistance and 100 °C/W junction-to-ambient (with 10 mm lead length), requiring careful PCB copper area planning for sustained power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for normal circuit operation. |
| VBR (Breakdown Voltage) | 95.0–105 V at 1 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC (Clamping Voltage) | 137 V at IPPM = 2.9 A - Peak voltage seen by protected circuit during 10/1000 μs surge; must stay below downstream device's absolute max rating. |
| PPPM (Peak Pulse Power) | 400 W - Maximum transient energy absorption capability per single 10/1000 μs pulse; determines survivability against standard surge waveforms. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Low leakage preserves system efficiency and prevents false triggering in high-impedance sensing paths. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without active cooling. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; matte tin-plated terminals solderable per J-STD-002; cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes conduction path during reverse-biased surge event. |
| Cathode | High-side surge input terminal | Connected to line being protected (e.g., power rail or signal trace); color band identifies this end for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures repeatable, low-drift avalanche behavior across temperature and lifetime; eliminates surface contamination sensitivity. |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive front-end protection. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules where reliability under thermal stress is mandatory. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive CMOS inputs. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualified, JESD201 Class 2 whisker-resistant finish-critical for long-life automotive assemblies. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and ground, activated within nanoseconds of overvoltage detection. Use Value: Clamps transients to ≤137 V, preventing damage to 16 V-rated DC-DC converters and microcontrollers in engine control units. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (configured anode-to-ground) suppresses both positive and negative ESD events on 4–20 mA loops. Use Value: Limits induced voltage spikes to <137 V while maintaining <1 μA leakage-preserving 12-bit ADC accuracy and avoiding false readings. |
| Consumer Device USB Port Surge Suppression | Telecom DSL Line Transient Filtering |
Use Scenario: Adding secondary surge protection on USB VBUS lines in set-top boxes and smart home hubs. IC Role / Device Role / Timing Role: Standby-mode protector that remains non-conductive until >85.5 V appears, then clamps within <1 ns. Use Value: Absorbs up to 400 W of surge energy from hot-plug or nearby lightning-induced coupling without degrading USB 2.0 signal integrity. | Use Scenario: Front-end protection of ADSL/VDSL line interface ICs exposed to telecom line surges per ITU-T K.20/K.44. IC Role / Device Role / Timing Role: Primary shunt limiter on tip/ring pair, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Provides precise 137 V clamping level compatible with GDT follow-on voltage, ensuring line driver ICs survive 10/700 μs telecom surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | DO-214AA package (SMB), 100 V VWM, 156 V VC at 2.6 A, same 400 W PPPM | Surface-mount footprint; lower thermal resistance (RθJA = 50 °C/W) but requires reflow-compatible layout | Select for space-constrained PCBs where automated assembly and higher thermal performance outweigh through-hole robustness. |
| 1.5KE100A | Same DO-41 package, 100 V VWM, but 150 V VC at 2.7 A and 1500 W PPPM (10/1000 μs) | Higher clamping voltage reduces protection margin; intended for higher-energy, less frequent surges | Choose only if system-level testing confirms 150 V clamping is acceptable and surge repetition rate is extremely low. |
Compared with SMBJ100A and 1.5KE100A, the P4KE100HE3/73 offers AEC-Q101 qualification and tighter clamping (137 V vs. 150–156 V), making it preferred for automotive and precision industrial designs where reliability and voltage margin are critical.
Availability
P4KE100HE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, consumer power supply inputs, and telecom line protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE100HE3/73 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 protection devices with emphasis on reliability, ruggedness, and automotive-grade validation.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective transient suppression in harsh environments-including under-hood automotive, factory floor, and outdoor telecom infrastructure.
FAQ
What is the clamping voltage of the P4KE100HE3/73 under a 10/1000 μs surge?
The P4KE100HE3/73 has a maximum clamping voltage (VC) of 137 V at a peak pulse current (IPPM) of 2.9 A with a 10/1000 μs waveform. This value is measured per JEDEC standards and represents the highest voltage the protected circuit will experience during such a transient event. The P4KE100HE3/73 maintains this clamping performance across its qualified temperature range.
Is the P4KE100HE3/73 suitable for automotive applications?
Yes, the P4KE100HE3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, JESD201 Class 2 whisker-resistant plating, and operation up to 175 °C junction temperature-all validated per automotive reliability test plans. The P4KE100HE3/73 is commonly deployed in body control modules and infotainment power rails.
How does the HE3 suffix differ from the E3 suffix in P4KE100HE3/73?
The HE3 suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas E3 indicates RoHS compliance only (commercial grade, no automotive qualification). The P4KE100HE3/73 is therefore approved for mission-critical automotive systems where long-term interconnect reliability is mandatory.
What is the reverse leakage current of the P4KE100HE3/73 at its stand-off voltage?
At its 85.5 V stand-off voltage (VWM), the P4KE100HE3/73 exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This low leakage ensures minimal power loss in standby mode and avoids interference with high-impedance sensor bias networks. The P4KE100HE3/73 maintains leakage below 5 μA up to 125 °C ambient.
Can the P4KE100HE3/73 be used in bidirectional configurations?
No-the P4KE100HE3/73 is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional protection, Vishay specifies CA-suffix variants (e.g., P4KE100CA). Using the P4KE100HE3/73 in reverse-biased AC applications would result in forward conduction and failure; always verify polarity during placement.
P4KE100HE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE100HE3/73 FAQ
1.How can I place an order for P4KE100HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE100HE3/73 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 P4KE100HE3/73 reliable?
The price and inventory of P4KE100HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE100HE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE100HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE100HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE100HE3/73?
P4KE100HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE100HE3/73 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 P4KE100HE3/73?
For technical support, including P4KE100HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE100HE3/73 requirements.
6.How does Aetrix verify that P4KE100HE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE100HE3/73 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 P4KE100HE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE100HE3/73?
All P4KE100HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE100HE3/73, 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 P4KE100HE3/73 part is unused and in its original packaging.
Return procedure for P4KE100HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE100HE3/73 Tags
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