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Vishay General Semiconductor - Diodes Division P4KE100CHE3/73
- Part No.:
- P4KE100CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE100CHE3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,690
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Product details
Overview
P4KE100CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 85.5 V stand-off voltage (VWM), 95–105 V breakdown voltage (VBR) at 1 mA, 137 V maximum clamping voltage (VC) at 2.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE100CHE3/73 datasheet, P4KE100CHE3/73 pinout, P4KE100CHE3/73 application, or P4KE100CHE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical data, clamping performance under surge conditions, and direct alternatives for circuit protection design-in.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert transient energy away from downstream components. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the 66 °C/W junction-to-lead thermal resistance supports reliable power dissipation during repetitive surges.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), complies with JESD 22-B106 soldering (275 °C, 10 s), and meets AEC-Q101 stress test requirements - confirming suitability for automotive-grade board-level ESD and load-dump protection without derating at TA ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum continuous reverse operating voltage before conduction begins; sets safe margin below system rail voltage. |
| VBR (min/max) | 95.0 V / 105 V at 1 mA - precise avalanche threshold defining turn-on consistency across production lots. |
| VC @ IPPM | 137 V at 2.9 A - clamping voltage during 10/1000 μs surge; determines maximum stress imposed on protected IC. |
| PPPM | 400 W - peak pulse power handling capability; defines survivability against standardized lightning/surge transients. |
| IFSM | 40 A - single half-sine surge current rating (8.3 ms); validates robustness against automotive load dump events. |
| TJ max. | 175 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJL | 66 °C/W - thermal resistance from junction to lead; informs heatsinking requirements for high-duty-cycle applications. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body; compliant with UL 94 V-0 flammability rating and RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V supply or CAN_H); color band identifies this end. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under thermal cycling. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standards. |
| 400 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) without degradation when properly mounted. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic. |
| Matte tin plating, J-STD-002 compliant | Guarantees reliable solder wetting and intermetallic formation on PCBs using standard reflow profiles. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against ISO 7637-2 load dump transients up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Shunt clamping element placed between battery rail and DC-DC input, conducting only during overvoltage events. Use Value: Limits peak voltage to ≤137 V, preventing damage to upstream regulators and microcontrollers rated for 40 V absolute maximum. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter outputs) in PLC modules exposed to field wiring inductive kick. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional P4KE100CHE3/73 protects against negative transients on grounded-signal paths. Use Value: Clamps reverse surges to <137 V within <1 ns, preserving signal integrity and avoiding latch-up in op-amp driver stages. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection of AC-DC converter inputs in telecom base station power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt suppressor on bulk capacitor input, coordinated with MOVs for multi-stage clamping. Use Value: Handles 400 W pulses without thermal runaway, enabling compact layout with minimal trace inductance impact on clamping speed. |
Use Scenario: Secondary-side overvoltage clamp on 5 V USB charging port outputs to meet IEC 61000-4-2 ESD immunity requirements. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to connector, sinking ±8 kV contact discharge energy. Use Value: Achieves sub-1 ns response time and <137 V clamping, ensuring connected devices remain within safe operating area during ESD events. |
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. | Higher clamping voltage but greater surge capacity; surface-mount compatible. | Select SMBJ100A when PCB space constraints favor SMD or higher single-pulse energy tolerance is required. |
| 1.5KE100A | DO-201AD package; identical VWM/VBR/VC; 1500 W PPPM; 100 A IPPM. | Larger through-hole package; suited for high-energy industrial transients. | Choose 1.5KE100A where legacy DO-201AD footprint exists or >400 W surge handling is mandated. |
Compared with P4KE100CHE3/73, SMBJ100A offers superior mountability and power density but trades off clamping tightness, while 1.5KE100A delivers threefold pulse power headroom at the cost of larger board area and thermal mass - making P4KE100CHE3/73 optimal for cost-sensitive, AEC-Q101-compliant automotive PCBs with moderate surge exposure.
Availability
P4KE100CHE3/73 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor modules, telecom line cards, and consumer power adapter inputs requiring stable component supply with full traceability and lifecycle management.
Supply support for P4KE100CHE3/73 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, efficiency, and automotive qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized 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 P4KE100CHE3/73 and how does it protect downstream circuits?
The P4KE100CHE3/73 has a maximum clamping voltage (VC) of 137 V at 2.9 A peak pulse current (10/1000 μs waveform). This value represents the highest voltage that appears across the protected line during a surge event - directly limiting stress on downstream components such as DC-DC converters or microcontrollers. Because the P4KE100CHE3/73 conducts heavily once VBR is exceeded, it holds the line near VC until the transient decays, thereby preventing overvoltage failure. Its low incremental resistance ensures minimal overshoot beyond VC.
Is P4KE100CHE3/73 qualified for automotive applications?
Yes, P4KE100CHE3/73 carries the HE3 suffix, indicating full AEC-Q101 qualification per Vishay documentation (Document Number 88365, Revision 16-Sep-2021). This includes stress testing for temperature cycling, high-temperature reverse bias, humidity bias, and mechanical shock - confirming suitability for under-hood and chassis-mounted automotive electronics. The device operates reliably from –55 °C to +175 °C and maintains specified VBR and leakage performance across that range.
How does the DO-41 package of P4KE100CHE3/73 affect its thermal performance?
The DO-41 (DO-204AL) package of P4KE100CHE3/73 provides a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, enabling effective heat transfer to the PCB copper pour or lead frame during surge events. While less efficient than larger packages like DO-201AD, the DO-41's thermal path is sufficient for single-pulse or low-duty-cycle transients. For sustained surge conditions, PCB layout must include ≥10 mm lead length and generous copper land to maximize conduction cooling - otherwise, junction temperature may exceed 175 °C during repeated 400 W pulses.
What is the difference between P4KE100CHE3/73 and P4KE100A-E3/73?
P4KE100CHE3/73 is AEC-Q101 qualified (HE3 suffix), whereas P4KE100A-E3/73 is commercial-grade (E3 suffix only). Both share identical electrical specs - VWM = 85.5 V, VBR = 95–105 V, VC = 137 V - but differ in reliability screening: HE3 undergoes additional automotive stress tests including HTGB, TC, and H3TRB. The HE3 version also meets JESD 201 Class 2 whisker resistance, while E3 meets Class 1A. Designers selecting P4KE100CHE3/73 commit to automotive-grade assurance without sacrificing electrical performance.
Can P4KE100CHE3/73 be used in bidirectional protection circuits?
No - P4KE100CHE3/73 is a unidirectional TVS diode, intended for protection of DC lines referenced to ground. Its cathode marking indicates polarity-sensitive installation: cathode connects to the protected line, anode to ground. For bidirectional protection (e.g., AC lines or differential buses), Vishay specifies CA-suffix parts like P4KE100CA. Using P4KE100CHE3/73 in reverse-biased AC applications would result in forward conduction and potential failure during negative half-cycles.
P4KE100CHE3/73 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:
- -
- Bidirectional Channels:
- 1
- 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)
P4KE100CHE3/73 FAQ
1.How can I place an order for P4KE100CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE100CHE3/73 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 P4KE100CHE3/73 reliable?
The price and inventory of P4KE100CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE100CHE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE100CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE100CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE100CHE3/73?
P4KE100CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE100CHE3/73 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 P4KE100CHE3/73?
For technical support, including P4KE100CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE100CHE3/73 requirements.
6.How does Aetrix verify that P4KE100CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE100CHE3/73 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 P4KE100CHE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE100CHE3/73?
All P4KE100CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE100CHE3/73, 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 P4KE100CHE3/73 part is unused and in its original packaging.
Return procedure for P4KE100CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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