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Vishay General Semiconductor - Diodes Division P4KE9.1CA-E3/54
- Part No.:
- P4KE9.1CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE9.1CA-E3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,590
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Product details
Overview
P4KE9.1CA-E3/54 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 a 9.1 V breakdown voltage (VBR min/max: 8.65–9.55 V), 7.78 V stand-off voltage (VWM), 13.4 V maximum clamping voltage (VC) at 29.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P4KE9.1CA-E3/54 datasheet, P4KE9.1CA-E3/54 pinout, P4KE9.1CA-E3/54 application, or P4KE9.1CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility, 175 °C max junction temperature, AEC-Q101 qualification status, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamping protection element in bidirectional configurations, responding to both positive and negative transient excursions without polarity marking. Its glass-passivated junction enables low incremental surge resistance (typical <0.3 Ω), fast response time (<1.0 ns), and stable clamping performance across -55 °C to +175 °C operating range.
The P4KE9.1CA-E3/54 delivers 400 W peak pulse power handling per 10/1000 μs waveform at 25 °C, derating linearly above TA = 25 °C with thermal resistance RθJA = 100 °C/W and RθJL = 66 °C/W. It supports repetitive surge duty cycle ≤0.01 % and meets JESD22-B106 solder dip (275 °C, 10 s) and JESD201 Class 1A whisker test requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA test current - defines reliable conduction onset under bidirectional surge conditions |
| VWM | 7.78 V - maximum continuous reverse working voltage before leakage exceeds 50 μA |
| VC @ IPPM | 13.4 V at 29.9 A - clamped voltage during worst-case 400 W transient, limiting stress on downstream ICs |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform, enabling robust ESD/EFT/lightning surge suppression |
| TJ max | +175 °C - high-temperature operation support for under-hood automotive and industrial environments |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with UL 94 V-0 molded epoxy body |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, glass-passivated silicon junction in molded epoxy case; no polarity marking for bidirectional operation; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional terminal pair | Identical electrical behavior in both directions; no cathode band - symmetric clamping for AC or floating signal lines |
| Lead 1 / Lead 2 | Mounting interface | Leads serve as mechanical attachment and thermal path; RθJL = 66 °C/W enables PCB copper pour heat sinking |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance (±5 %), low leakage (<50 μA at VWM), and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-earth) surge immunity without derating |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications requiring zero defect field performance |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment enclosures |
| JESD201 Class 1A whisker resistance | Prevents tin whisker growth under high humidity and temperature bias, ensuring long-term solder joint integrity |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pairs or supply rails upstream of protected ICs. Use Value: Limits transient voltage to ≤13.4 V during 29.9 A surges, preventing latch-up or gate oxide damage in 5 V/3.3 V interface ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input channels to shunt energy before it reaches optocoupler or MCU GPIO protection networks. Use Value: Clamps 400 W surges within nanoseconds while maintaining 7.78 V stand-off, preserving signal integrity during normal operation. |
| Consumer Power Adapter Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices subjected to lightning-induced surges on low-voltage DC outputs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between +5 V output and GND to absorb residual transients escaping primary-side MOV suppression. Use Value: Withstands repeated 10/1000 μs pulses up to 400 W without degradation, extending adapter lifetime in surge-prone regions. | Use Scenario: Protection of Ethernet PHY interfaces and DSL line drivers against ESD and induced surges in residential gateways and VoIP phones. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential pairs (e.g., TX+/TX−) to maintain signal symmetry during transient events. Use Value: Symmetric VBR (8.65–9.55 V) ensures equal clamping in both polarities, preventing common-mode imbalance that could disrupt data transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Surface-mount SMB package (vs. through-hole DO-41); same VBR range (8.5–9.4 V), identical 400 W rating | Requires PCB re-layout for SMT assembly; better high-frequency response due to lower parasitic inductance | Select when automated assembly, space constraints, or higher-frequency surge immunity (e.g., >100 MHz ESD) are prioritized |
| 1.5KE9.1CA | Higher peak pulse power (1500 W vs. 400 W); same DO-41 package and VBR (8.65–9.55 V) | Used where higher-energy surges (e.g., ISO 7637-2 Pulse 5a) must be absorbed without cascading failure | Select when system-level surge testing requires margin beyond IEC 61000-4-5 Level 3, and board space allows larger DO-201 package |
Compared with SMBJ9.0CA and 1.5KE9.1CA, the P4KE9.1CA-E3/54 offers optimal balance of proven automotive reliability (AEC-Q101), through-hole manufacturability, and cost-effective 400 W protection - making it preferred for legacy industrial controls and automotive modules where DO-41 footprint and qualification are mandatory.
Availability
P4KE9.1CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer power adapters, and telecom line interface circuits requiring stable component supply across extended production lifecycles.
Supply support for P4KE9.1CA-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, rectifiers, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for robust, standardized transient suppression in automotive, industrial, and computing applications where AEC-Q101 qualification and repeatable clamping performance are critical.
FAQ
What is the breakdown voltage tolerance for P4KE9.1CA-E3/54?
The P4KE9.1CA-E3/54 has a specified breakdown voltage range of 8.65 V to 9.55 V at 1.0 mA test current, corresponding to ±5 % tolerance around the nominal 9.1 V rating. This tight VBR distribution ensures consistent clamping behavior across production lots and supports precise circuit protection design without over-engineering margins. The P4KE9.1CA-E3/54 maintains this specification under bidirectional operation and across its full -55 °C to +175 °C operating temperature range.
Is P4KE9.1CA-E3/54 suitable for automotive applications?
Yes, the P4KE9.1CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and body electronics. Its 175 °C maximum junction temperature, glass-passivated junction, and validation across temperature cycling, high-temperature reverse bias (HTRB), and surge endurance tests confirm suitability for engine control units, ADAS sensor interfaces, and infotainment power supplies. The P4KE9.1CA-E3/54 meets automotive-grade reliability requirements without derating in standard mounting configurations.
How does the clamping voltage of P4KE9.1CA-E3/54 compare to its breakdown voltage?
The P4KE9.1CA-E3/54 clamps at 13.4 V when subjected to its rated 29.9 A peak pulse current (10/1000 μs), which is approximately 47 % above its minimum breakdown voltage of 8.65 V. This VC/VBR ratio reflects low dynamic impedance and effective energy absorption - critical for protecting 5 V or 3.3 V ICs downstream. The P4KE9.1CA-E3/54 achieves this clamping performance consistently in both directions due to its symmetrical bidirectional structure.
What is the maximum reverse leakage current for P4KE9.1CA-E3/54 at rated VWM?
At its maximum working voltage of 7.78 V (VWM), the P4KE9.1CA-E3/54 exhibits a maximum reverse leakage current (ID) of 50 μA at 25 °C. This low leakage ensures minimal power loss and signal interference in always-on circuits such as automotive sensor bias networks or telecom line monitoring paths. The P4KE9.1CA-E3/54 maintains leakage below 100 μA up to 125 °C, supporting stable operation in thermally demanding environments.
Does P4KE9.1CA-E3/54 require polarity-aware PCB layout?
No, the P4KE9.1CA-E3/54 is a bidirectional TVS diode with no polarity marking on its DO-41 package, meaning either lead may connect to either side of the protected line. This simplifies PCB layout and eliminates orientation errors during manual or automated assembly. The P4KE9.1CA-E3/54 delivers identical clamping performance for positive and negative transients, making it ideal for AC-coupled signals, differential buses, and floating power domains where polarity cannot be assumed.
P4KE9.1CA-E3/54 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 29.9A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE9.1CA-E3/54 FAQ
1.How can I place an order for P4KE9.1CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE9.1CA-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 P4KE9.1CA-E3/54 reliable?
The price and inventory of P4KE9.1CA-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 P4KE9.1CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE9.1CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE9.1CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE9.1CA-E3/54?
P4KE9.1CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE9.1CA-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 P4KE9.1CA-E3/54?
For technical support, including P4KE9.1CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE9.1CA-E3/54 requirements.
6.How does Aetrix verify that P4KE9.1CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE9.1CA-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 P4KE9.1CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE9.1CA-E3/54?
All P4KE9.1CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE9.1CA-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 P4KE9.1CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE9.1CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE9.1CA-E3/54 Tags
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