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Vishay General Semiconductor - Diodes Division P4KE91CAHE3/54
- Part No.:
- P4KE91CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE91CAHE3/54.pdf
- Description:
- TVS DIODE 77.8VWM 125VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,620
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Product details
Overview
P4KE91CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 91 V breakdown voltage (VBR min/max = 86.5 V / 95.5 V), 125 V maximum clamping voltage at 3.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE91CAHE3/54 datasheet, P4KE91CAHE3/54 pinout, P4KE91CAHE3/54 application, or P4KE91CAHE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical dimensions, clamping performance under standardized surge waveforms, and direct alternatives for bidirectional transient protection in harsh environments.
Technical Context
This device operates as a voltage-clamping component that enters avalanche conduction when reverse voltage exceeds its breakdown threshold, diverting transient energy to ground. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity sensitivity.
It uses a glass-passivated silicon junction for stable leakage and low incremental surge resistance, with thermal resistance RθJL = 66 °C/W enabling reliable power dissipation during repetitive surges. The 175 °C max junction temperature and -55 °C to +175 °C operating range support under-hood automotive and industrial control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 86.5 V / 95.5 V at 1.0 mA test current - defines precise clamping onset window for predictable overvoltage response |
| VWM | 77.8 V - maximum continuous working voltage before leakage exceeds 1.0 μA, setting safe DC bias limit |
| VC @ IPPM | 125 V at 3.2 A peak pulse current - actual clamped voltage during 10/1000 μs surge, critical for downstream IC survivability |
| PPPM | 400 W - peak transient power handling capability with 0.01% duty cycle, enabling robust ESD and lightning surge absorption |
| IPPM | 3.2 A - maximum non-repetitive surge current supported, directly tied to PCB trace sizing and grounding strategy |
| TJ max | +175 °C - high-temperature junction rating allows placement near heat sources in engine control units or motor drives |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per JESD22 |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional operation; body length 25.4 mm min, lead diameter 0.71–0.86 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction - either terminal serves as cathode or anode depending on transient polarity; enables AC line protection without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable leakage current (<1.0 μA at VWM) and long-term reliability under thermal cycling and humidity stress |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance grounding |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and chassis modules where failure modes must meet ASIL-B requirements |
| UL 94 V-0 compliant molding compound | Prevents flame propagation in enclosed enclosures, meeting safety standards for industrial control cabinets and EV charging systems |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for 3.3 V/5 V logic |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, responding within <1 ns to suppress spikes exceeding 77.8 V. Use Value: Prevents latch-up or permanent damage to 12-bit ADC front-ends and isolated signal conditioners by limiting voltage to ≤125 V during 3.2 A surges. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring faults and EFT bursts. IC Role / Device Role / Timing Role: Standoff protector mounted at connector entry point, conducting only during transients >77.8 V while remaining high-impedance during normal operation. Use Value: Maintains signal integrity below 1 LSB error for 16-bit DAQ systems by limiting clamping voltage rise to 47.2 V above VWM. |
| Telecom Line Interface Surge Suppression | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY interfaces and DSL line drivers from lightning-induced surges entering via unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Primary TVS stage in multi-stage protection network, absorbing bulk energy before secondary polymer PPTC or GDT elements. Use Value: Withstands repeated 10/1000 μs surges up to 400 W without parameter drift, extending service life in outdoor telecom cabinets. |
Use Scenario: Guarding microcontroller GPIOs and gate drivers in washing machine motor inverters against back-EMF spikes from brushed DC motors. IC Role / Device Role / Timing Role: Fast-response shunt device across H-bridge supply rails or MOSFET gate-source terminals to clamp inductive kickback. Use Value: Enables use of cost-optimized 60 V MOSFETs by clamping transients to 125 V, avoiding need for higher-voltage, higher-RDS(on) devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA | DO-214AA package; 90 V VBR; 600 W PPPM; lower RθJA (50 °C/W) but larger footprint | Better suited for high-density PCBs requiring surface-mount assembly and higher surge margin | Select SMBJ90CA when board space permits SMD layout and system-level surge testing exceeds IEC 61000-4-5 Level 4 |
| 1.5KE91CA | DO-201AD package; identical VBR/VC specs; 1500 W PPPM; higher IPPM (13.9 A); larger body | Used in legacy through-hole designs needing higher single-pulse energy absorption | Choose 1.5KE91CA for retrofitting existing DO-201AD footprints or where 1500 W surge headroom is mandated by safety certification |
Compared with P4KE91CAHE3/54, SMBJ90CA offers superior thermal performance and SMD compatibility but requires rework of mounting and layout; 1.5KE91CA provides triple the peak power rating in a larger axial package, making it suitable for high-energy industrial surge events where DO-41 size constraints do not apply.
Availability
P4KE91CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom line protection requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for P4KE91CAHE3/54 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 and automotive qualification.
The P4KE91CAHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-effective, high-volume transient suppression in automotive, industrial, and communications infrastructure where bidirectional clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for P4KE91CAHE3/54?
The P4KE91CAHE3/54 has a specified breakdown voltage range of 86.5 V to 95.5 V at 1.0 mA test current, representing ±5% tolerance around the nominal 91 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports deterministic circuit design for overvoltage thresholds in P4KE91CAHE3/54-based protection networks.
Is P4KE91CAHE3/54 suitable for automotive applications?
Yes, P4KE91CAHE3/54 is AEC-Q101 qualified and rated for operation from -55 °C to +175 °C, making it suitable for under-hood and cabin-mounted automotive modules. Its DO-41 package with matte tin leads meets J-STD-002 solderability and JESD201 class 2 whisker resistance requirements - key criteria for P4KE91CAHE3/54 deployment in engine control units and ADAS sensor interfaces.
How does the clamping voltage of P4KE91CAHE3/54 compare to its breakdown voltage?
The P4KE91CAHE3/54 clamps to 125 V at 3.2 A peak pulse current (10/1000 μs), which is 34.1 V above its minimum breakdown voltage of 86.5 V. This 39.4% overvoltage margin reflects the device's incremental surge resistance and defines the maximum stress imposed on protected circuitry during standardized surge events - a critical parameter when selecting P4KE91CAHE3/54 for 12 V or 24 V system protection.
What is the maximum reverse leakage current for P4KE91CAHE3/54 at rated standoff voltage?
At its maximum working voltage (VWM) of 77.8 V and TA = 25 °C, the P4KE91CAHE3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in battery-operated systems using P4KE91CAHE3/54 for always-on protection.
Does P4KE91CAHE3/54 require polarity-aware PCB layout?
No - P4KE91CAHE3/54 is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions, and carries no polarity marking on its DO-41 package. This eliminates orientation constraints during placement, simplifying assembly and enabling use in AC-coupled circuits, differential data lines, and floating grounds where polarity cannot be guaranteed - a key advantage of P4KE91CAHE3/54 over unidirectional variants.
P4KE91CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 77.8V
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 3.2A
- 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)
P4KE91CAHE3/54 FAQ
1.How can I place an order for P4KE91CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE91CAHE3/54 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 P4KE91CAHE3/54 reliable?
The price and inventory of P4KE91CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE91CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE91CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE91CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE91CAHE3/54?
P4KE91CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE91CAHE3/54 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 P4KE91CAHE3/54?
For technical support, including P4KE91CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE91CAHE3/54 requirements.
6.How does Aetrix verify that P4KE91CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE91CAHE3/54 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 P4KE91CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE91CAHE3/54?
All P4KE91CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE91CAHE3/54, 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 P4KE91CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE91CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE91CAHE3/54 Tags
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