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Vishay General Semiconductor - Diodes Division P6KE91CAHE3/54
- Part No.:
- P6KE91CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE91CAHE3/54.pdf
- Description:
- TVS DIODE 77.8VWM 125VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,674
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Product details
Overview
P6KE91CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features a 91 V breakdown voltage (VBR min/max = 86.5–95.5 V at 1.0 mA), 77.8 V standoff voltage (VWM), 125 V maximum clamping voltage (VC) at 4.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6KE91CAHE3/54 datasheet, P6KE91CAHE3/54 pinout, P6KE91CAHE3/54 application, or P6KE91CAHE3/54 equivalent, key selection criteria include bidirectional surge protection capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and verified clamping performance under 10/1000 µs transients up to 4.8 A.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling robust suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 20 °C/W junction-to-lead thermal resistance supports reliable power dissipation under repetitive surge conditions.
The P6KE91CAHE3/54 is rated for -55 °C to +175 °C operating junction temperature and meets UL 94 V-0 flammability requirements. Its 0.106 %/°C temperature coefficient of VBR enables predictable voltage drift across temperature, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 86.5 V / 95.5 V at 1.0 mA - defines precise avalanche initiation window for repeatable clamping onset |
| VWM | 77.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 125 V at 4.8 A (10/1000 µs) - peak clamped voltage seen by protected circuit during worst-case transient |
| PPPM | 600 W - surge power handling capacity under standardized 10/1000 µs waveform at 0.01 % duty cycle |
| TJ max | +175 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package with 0.242–0.258 inch body length and 0.130–0.138 inch diameter |
Pinout & Package
DO-15 (DO-204AC) package: axial-leaded, molded epoxy case with glass-passivated chip; no polarity marking for bidirectional types; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked ends) | Bidirectional avalanche junction terminals | Either end functions identically - no cathode band; symmetric conduction enables polarity-agnostic transient clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) when properly mounted with low-inductance layout |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-defect field performance |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and transportation equipment enclosures |
| Low incremental surge resistance | Enables tight VC – VWM margin (125 V / 77.8 V = 1.61×), minimizing let-through energy to downstream components |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 120 V, 400 ms) on 12 V battery-fed ECUs and lighting modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail and ground, absorbing surge energy before it reaches LDOs or microcontrollers. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic supplies by limiting peak rail voltage to ≤125 V during ISO 7637-2 Pulse 5a events. |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) from ESD and inductive switching noise in PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance shunt protector installed at connector entry point, diverting fast transients (<1 ns rise time) away from precision DACs and op-amps. Use Value: Maintains signal integrity with <1.0 µA leakage at 77.8 V, avoiding offset errors in µA-level current-loop sensing circuits. |
| Telecom Line Surge Protection | Consumer Appliance Motor Control |
|
Use Scenario: Guarding RS-485 transceiver bus lines against lightning-induced surges in outdoor base stations and network repeaters. IC Role / Device Role / Timing Role: Primary-level TVS placed differential-mode across A/B lines and common-mode to ground, coordinating with GDT secondary protection. Use Value: Clamps 10/1000 µs surges to ≤125 V within 1 ns response time, preserving signal eye diagram integrity and preventing transceiver latch-up. |
Use Scenario: Shielding MCU GPIOs and gate drivers from back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Localized clamp mounted directly at motor driver IC supply pins, limiting transient overshoot during commutation. Use Value: Enables use of cost-optimized 20 V-rated MOSFETs by capping spike amplitude below 125 V, eliminating need for higher-voltage, higher-RDS(on) devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA | DO-214AA package; 90 V VBR; 1000 W PPPM; 1.5× higher surge rating but 30 % larger footprint | Preferred where PCB space allows higher power margin and surface-mount assembly is required | Select SMBJ90CA when board real estate permits SMD layout and >600 W headroom is needed for IEC 61000-4-5 compliance. |
| 1.5KE91CA | DO-201AD package; identical VBR/VC specs; 1500 W PPPM; 3.7× higher surge rating but 2.2× longer lead length | Used in legacy through-hole designs requiring maximum surge endurance without changing mounting hole pattern | Choose 1.5KE91CA only if existing tooling mandates DO-201AD form factor and 1500 W rating is mandatory for safety-critical subsystems. |
Compared with SMBJ90CA and 1.5KE91CA, the P6KE91CAHE3/54 offers optimal balance of AEC-Q101 qualification, DO-15 compatibility with legacy through-hole tooling, and verified 600 W surge handling - making it ideal for cost-sensitive, high-volume automotive and industrial control applications where footprint and qualification are prioritized over raw power headroom.
Availability
P6KE91CAHE3/54 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog I/O protection, and telecom interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P6KE91CAHE3/54 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series was developed for cost-effective, high-surge-capability transient protection in space-constrained commercial and automotive applications - delivering AEC-Q101 qualification in the compact DO-15 package without sacrificing clamping performance.
FAQ
What does the "CA" suffix indicate in P6KE91CAHE3/54?
The "CA" suffix in P6KE91CAHE3/54 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6KE91A), P6KE91CAHE3/54 has no cathode marking and exhibits identical electrical characteristics in either polarity - critical for AC-coupled or floating signal line protection where polarity cannot be guaranteed.
Is P6KE91CAHE3/54 suitable for automotive applications?
Yes, P6KE91CAHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its +175 °C maximum junction temperature, robust DO-15 mechanical construction, and verified performance under ISO 7637-2 load-dump and pulse test conditions make P6KE91CAHE3/54 appropriate for engine control units, body electronics, and ADAS power rail protection.
What is the clamping voltage of P6KE91CAHE3/54 at its rated peak pulse current?
The P6KE91CAHE3/54 has a maximum clamping voltage (VC) of 125 V at its rated peak pulse current (IPPM) of 4.8 A, measured using the standard 10/1000 µs double-exponential waveform. This value represents the highest voltage that will appear across the protected circuit during a full-rated surge event - a key parameter for ensuring downstream components remain within their absolute maximum ratings.
How does the HE3 suffix differ from E3 in P6KE91CAHE3/54?
The "HE3" suffix in P6KE91CAHE3/54 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas "E3" denotes RoHS compliance only (commercial grade). P6KE91CAHE3/54 is therefore certified for automotive and high-reliability industrial use, with enhanced process controls for solder joint integrity and long-term intermetallic stability under thermal cycling.
Can P6KE91CAHE3/54 replace P6KE91A in an existing design?
No - P6KE91CAHE3/54 is bidirectional while P6KE91A is unidirectional, so direct substitution requires verification of circuit polarity and grounding topology. In unidirectional applications with defined cathode orientation, replacing P6KE91A with P6KE91CAHE3/54 may result in unintended conduction paths or failure to clamp correctly. Always confirm system-level polarity requirements before substituting P6KE91CAHE3/54 for any unidirectional variant.
P6KE91CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, 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):
- 4.8A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE91CAHE3/54 FAQ
1.How can I place an order for P6KE91CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE91CAHE3/54 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 P6KE91CAHE3/54 reliable?
The price and inventory of P6KE91CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE91CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE91CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE91CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE91CAHE3/54?
P6KE91CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE91CAHE3/54 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 P6KE91CAHE3/54?
For technical support, including P6KE91CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE91CAHE3/54 requirements.
6.How does Aetrix verify that P6KE91CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE91CAHE3/54 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 P6KE91CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE91CAHE3/54?
All P6KE91CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE91CAHE3/54, 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 P6KE91CAHE3/54 part is unused and in its original packaging.
Return procedure for P6KE91CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE91CAHE3/54 Tags
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