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Vishay General Semiconductor - Diodes Division P4KE8.2CA-E3/54
- Part No.:
- P4KE8.2CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE8.2CA-E3/54.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,149
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Product details
Overview
P4KE8.2CA-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 8.2 V nominal breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 12.1 V maximum clamping voltage (VC) at 33.1 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 P4KE8.2CA-E3/54 datasheet, P4KE8.2CA-E3/54 pinout, P4KE8.2CA-E3/54 application, or P4KE8.2CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, low leakage (<200 μA at VWM), and thermal resistance (RθJL = 66 °C/W) for board-level transient immunity design.
Technical Context
This device operates as a voltage-clamping protector in bidirectional configurations, with symmetrical avalanche breakdown behavior in both polarities. Its glass-passivated junction enables fast response time (<1.0 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 μs transients at 0.01% duty cycle.
Designed for use without polarity marking, it supports surge immunity per ISO 7637-2 and IEC 61000-4-5 in ungrounded or floating signal paths. The DO-41 package provides UL 94 V-0 flammability compliance and matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines reliable conduction onset window for bidirectional clamping |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 200 μA |
| VC @ IPPM | 12.1 V at 33.1 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform, enabling robust ESD/lightning surge absorption |
| RθJL | 66 °C/W - thermal resistance from junction to lead, supporting 1.5 W steady-state dissipation at TL = 75 °C |
| TJ range | –55 °C to +175 °C - extended operating temperature envelope for under-hood automotive and industrial environments |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional operation; UL 94 V-0 compliant housing; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction - either lead serves as input/output terminal for transient clamping in AC or floating DC paths |
| Lead 1 / Lead 2 | Current path terminals | Direct connection to protected line and ground/reference; requires minimum 10 mm lead length for specified RθJA = 100 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable VBR tolerance over lifetime and temperature |
| AEC-Q101 qualified (HE3 variant) | P4KE8.2CA-E3/54 is commercial grade; HE3 suffix required for automotive qualification - critical for Tier-1 supply chain traceability |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge testing on 2 Ω source impedance lines |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage exposure to downstream MOSFETs or microcontrollers during transient events |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial control cabinets and automotive ECUs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground, absorbing ±200 V transients without polarity concern. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V signal chain ICs by limiting excursion to ≤12.1 V during 33.1 A surges. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges due to relay coil de-energization or lightning coupling. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input channels, operating in parallel with optocoupler input stages. Use Value: Maintains system uptime by preventing false triggering or permanent failure of input conditioning circuitry during 400 W transient events. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB-C PD controller communication lines and VBUS monitoring circuits against ESD and hot-plug transients in wall adapters. IC Role / Device Role / Timing Role: Low-capacitance TVS across differential CC1/CC2 lines and VBUS-to-GND, leveraging DO-41's minimal parasitic impact. Use Value: Ensures USB PD negotiation integrity by clamping sub-100 ns ESD events to <12.1 V while adding <0.5 pF junction capacitance. | Use Scenario: Protecting Ethernet PHY interfaces and analog front-ends on telecom line cards exposed to induced surges from nearby power lines or antenna coupling. IC Role / Device Role / Timing Role: Primary clamping device on RJ-45 transformer center taps and bias rails, coordinated with secondary GDT or MOV stages. Use Value: Extends mean time between failures (MTBF) by limiting transient energy delivered to 100BASE-TX magnetics and PHY silicon to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | DO-214AA package; 8.0 V VBR; 13.6 V VC at 32.4 A; 600 W PPPM | Higher power rating but larger footprint; surface-mount only | Select when PCB space allows SMD layout and higher surge margin is required beyond 400 W |
| 1.5KE8.2CA | DO-201AD package; identical VBR/VC; 1500 W PPPM; higher IPPM (123 A) | Through-hole compatible but longer lead form; suited for high-energy industrial mains protection | Choose for legacy through-hole designs needing >400 W headroom or where DO-41 lead spacing is incompatible |
Compared with SMBJ8.0CA and 1.5KE8.2CA, P4KE8.2CA-E3/54 offers optimal balance of DO-41 axial fit, AEC-Q101-ready qualification path (via HE3), and precise 7.02 V VWM for 5 V rail protection - making it preferred for cost-sensitive, space-constrained automotive and industrial control boards requiring proven reliability.
Availability
P4KE8.2CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for P4KE8.2CA-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, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE series targets cost-effective, high-volume transient suppression in automotive, industrial, and consumer applications - engineered for robustness under repetitive surge stress and extended temperature operation.
FAQ
What is the breakdown voltage tolerance for P4KE8.2CA-E3/54?
The P4KE8.2CA-E3/54 has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing ±5% tolerance around the nominal 8.2 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable design margins for 5 V and 3.3 V systems. The value is measured per ANSI/IEEE C62.35 standards and confirmed in Vishay's datasheet revision 16-Sep-2021.
Is P4KE8.2CA-E3/54 suitable for automotive applications?
P4KE8.2CA-E3/54 is RoHS-compliant and manufactured to commercial-grade specifications. While the base P4KE8.2CA-E3/54 is not AEC-Q101 qualified, the HE3-suffixed variant (P4KE8.2CAHE3/54) is explicitly qualified per AEC-Q101. For automotive use, designers must specify the HE3 version; the E3 suffix alone does not guarantee automotive qualification. P4KE8.2CA-E3/54 remains appropriate for non-safety-critical consumer or industrial applications where AEC-Q101 is not mandated.
What is the maximum clamping voltage of P4KE8.2CA-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE8.2CA-E3/54 is 12.1 V at 33.1 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value reflects worst-case voltage seen by protected circuitry during a full 400 W transient event. It is measured per Figure 1 and Table on page 2 of Vishay document 88365 and remains valid across the –55 °C to +175 °C operating junction temperature range.
How does the DO-41 package of P4KE8.2CA-E3/54 affect thermal performance?
The DO-41 (DO-204AL) package of P4KE8.2CA-E3/54 delivers a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. This enables 1.5 W steady-state power dissipation at 75 °C lead temperature, sufficient for most transient-suppression duty cycles. Layout best practices include minimizing trace length to ground and avoiding thermal isolation - critical because P4KE8.2CA-E3/54 relies on lead conduction for heat transfer rather than PCB copper area.
Does P4KE8.2CA-E3/54 have polarity markings?
No, P4KE8.2CA-E3/54 does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional types (e.g., P4KE8.2A), which feature a cathode band, the CA-suffixed variants exhibit symmetrical avalanche characteristics in both directions and are intended for use on AC-coupled or floating DC lines. This eliminates orientation errors during manual assembly and simplifies layout for differential or isolated signal paths in P4KE8.2CA-E3/54 implementations.
P4KE8.2CA-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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
P4KE8.2CA-E3/54 FAQ
1.How can I place an order for P4KE8.2CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE8.2CA-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 P4KE8.2CA-E3/54 reliable?
The price and inventory of P4KE8.2CA-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 P4KE8.2CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE8.2CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE8.2CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE8.2CA-E3/54?
P4KE8.2CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE8.2CA-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 P4KE8.2CA-E3/54?
For technical support, including P4KE8.2CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE8.2CA-E3/54 requirements.
6.How does Aetrix verify that P4KE8.2CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE8.2CA-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 P4KE8.2CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE8.2CA-E3/54?
All P4KE8.2CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE8.2CA-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 P4KE8.2CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE8.2CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE8.2CA-E3/54 Tags
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