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Vishay General Semiconductor - Diodes Division P6KE9.1A-E3/54
- Part No.:
- P6KE9.1A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1A-E3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,394
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Product details
Overview
P6KE9.1A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 9.1 V nominal breakdown voltage (VBR = 8.65–9.55 V at 1.0 mA), 13.4 V maximum clamping voltage at 44.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients in automotive and industrial control systems.
For engineers reviewing the P6KE9.1A-E3/54 datasheet, P6KE9.1A-E3/54 pinout, P6KE9.1A-E3/54 application, or P6KE9.1A-E3/54 equivalent, key selection criteria include its DO-15 package compatibility, unidirectional polarity with cathode band marking, 7.78 V stand-off voltage (VWM), 50 μA max reverse leakage at VWM, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The P6KE9.1A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient voltages before sensitive downstream components are damaged. Its thermal design supports 175 °C maximum junction temperature and 20 °C/W junction-to-lead thermal resistance.
It is rated for non-repetitive 8.3 ms half-sine surge currents up to 100 A (IFSM) and exhibits a positive temperature coefficient of breakdown voltage (+0.068 %/°C), ensuring stable clamping behavior across operating temperature ranges from –55 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA - defines reliable avalanche initiation threshold for consistent overvoltage triggering |
| VWM | 7.78 V - maximum continuous reverse working voltage before leakage exceeds 50 μA |
| VC @ IPPM | 13.4 V at 44.8 A - clamped voltage during 600 W transient, limiting stress on protected circuitry |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, enabling robust surge immunity |
| IFSM | 100 A - surge current capability for 8.3 ms half-sine wave, supporting high-energy inductive load switching |
| TJ max. | +175 °C - extended junction temperature range suitable for under-hood automotive and industrial environments |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package with UL 94 V-0 molded epoxy housing |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events (e.g., reverse polarity faults) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates controlled breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 μs) | Provides high-energy transient suppression without degradation in compact DO-15 footprint |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including engine control units and body electronics requiring zero-failure reliability |
| Low clamping ratio (VC/VBR ≈ 1.40) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| Solder dip rated 275 °C for 10 s | Supports standard wave and reflow assembly processes without delamination or parameter shift |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point to limit voltage excursions below 14 V absolute maximum ratings of downstream regulators and microcontrollers. Use Value: Clamps 600 W surges to ≤13.4 V while maintaining <50 μA leakage at 7.78 V, preserving quiescent current budget in always-on modules. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to connector pins to shunt transients before reaching op-amp input stages. Use Value: Sub-1 ns response ensures clamping occurs prior to propagation through RC-filtered signal paths, preventing false readings or ADC saturation. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
|
Use Scenario: Safeguarding AC-DC adapter secondary-side rectifier and controller ICs from reflected transients originating on mains input. IC Role / Device Role / Timing Role: Unidirectional suppressor mounted across DC output rail to absorb flyback energy from transformer leakage inductance. Use Value: 100 A IFSM rating handles repetitive 8.3 ms surges common in low-cost adapter designs without thermal runaway. |
Use Scenario: Front-end protection for Ethernet PHYs and RS-485 transceivers exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line defense in multi-stage protection scheme, absorbing bulk energy before gas discharge tube or polymer PTC. Use Value: 600 W PPPM rating meets ITU-T K.20/21 requirements for central office equipment when paired with appropriate series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | DO-214AA package; 9.0 V VBR; 13.1 V VC @ 43.3 A; 600 W rating; surface-mount | Requires PCB redesign for SMD layout; better thermal performance in high-density layouts | Select SMBJ9.0A when board space is constrained and automated assembly is preferred over axial through-hole mounting. |
| 1.5KE9.1A | Same DO-15 package; identical VBR and VC; 1500 W PPPM rating; higher IPPM (96.8 A) | Over-spec'd for most 600 W use cases; larger junction capacitance may affect high-speed signal integrity | Choose 1.5KE9.1A only when legacy system validation requires proven 1500 W headroom or existing 1.5KE footprint reuse. |
Compared with SMBJ9.0A and 1.5KE9.1A, the P6KE9.1A-E3/54 offers optimal balance of cost, axial through-hole manufacturability, and precise 600 W surge handling - making it ideal for cost-sensitive automotive and industrial power supply designs where DO-15 mechanical retention and AEC-Q101 compliance are mandatory.
Availability
P6KE9.1A-E3/54 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply with full traceability and RoHS compliance.
Supply support for P6KE9.1A-E3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TransZorb® TVS family, engineered for cost-effective, high-surge-capability overvoltage protection in commercial and automotive environments where rapid clamping and long-term parametric stability are critical.
FAQ
What is the maximum clamping voltage of the P6KE9.1A-E3/54 under surge conditions?
The P6KE9.1A-E3/54 has a maximum clamping voltage (VC) of 13.4 V when subjected to its rated peak pulse current of 44.8 A using a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88369, Rev. 27-Sep-2021) and represents the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the P6KE9.1A-E3/54 suitable for automotive applications?
Yes, the P6KE9.1A-E3/54 is AEC-Q101 qualified (as confirmed in the "Notes" section of the datasheet), making it suitable for automotive applications including engine control modules, body electronics, and infotainment power supplies. Its DO-15 package, 175 °C maximum junction temperature, and stable clamping performance across temperature ensure compliance with automotive reliability and thermal requirements.
What does the "E3/54" suffix indicate in P6KE9.1A-E3/54?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction meeting JESD 201 Class 1A whisker testing, while "/54" specifies the packaging format: 13-inch diameter paper tape and reel containing 4000 units. This ordering code aligns with Vishay's standard delivery mode for high-volume production use of the P6KE9.1A-E3/54.
How does the P6KE9.1A-E3/54 differ from bidirectional variants like P6KE9.1CA?
The P6KE9.1A-E3/54 is unidirectional with a cathode band marking and conducts only in reverse avalanche mode; it blocks forward voltage up to 3.5 V. In contrast, P6KE9.1CA is bidirectional, symmetrical in both directions, and lacks polarity marking. The P6KE9.1A-E3/54 is selected for DC rail protection where polarity is fixed, whereas CA variants serve AC-coupled or differential signal lines.
What is the thermal resistance specification for the P6KE9.1A-E3/54?
The P6KE9.1A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W, per Vishay's Thermal Characteristics table. These values enable accurate thermal modeling during layout - especially important when designing for sustained power dissipation or high ambient temperatures in enclosed automotive or industrial enclosures.
P6KE9.1A-E3/54 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE9.1A-E3/54 FAQ
1.How can I place an order for P6KE9.1A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1A-E3/54 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 P6KE9.1A-E3/54 reliable?
The price and inventory of P6KE9.1A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1A-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE9.1A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1A-E3/54?
P6KE9.1A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1A-E3/54 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 P6KE9.1A-E3/54?
For technical support, including P6KE9.1A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1A-E3/54 requirements.
6.How does Aetrix verify that P6KE9.1A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1A-E3/54 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 P6KE9.1A-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE9.1A-E3/54?
All P6KE9.1A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1A-E3/54, 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 P6KE9.1A-E3/54 part is unused and in its original packaging.
Return procedure for P6KE9.1A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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