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Vishay General Semiconductor - Diodes Division P4KE27CAHE3/54
- Part No.:
- P4KE27CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE27CAHE3/54.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
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Product details
Overview
P4KE27CAHE3/54 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 27 V breakdown voltage (VBR min/max = 25.7–28.4 V), 400 W peak pulse power (10/1000 μs), and clamps to ≤37.5 V at 10.7 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE27CAHE3/54 datasheet, P4KE27CAHE3/54 pinout, P4KE27CAHE3/54 application, or P4KE27CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, and verified 175 °C junction temperature rating for under-hood automotive use.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism with glass-passivated junction. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints.
Designed for repetitive 10/1000 μs surge waveforms at 0.01% duty cycle, it delivers stable clamping performance across -55 °C to +175 °C operating range and exhibits low incremental surge resistance - critical for limiting let-through energy to downstream ICs like CAN transceivers or microcontroller GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA - defines precise avalanche onset window for reliable triggering before system damage |
| VWM | 23.1 V - maximum continuous reverse working voltage; ensures no conduction during normal operation |
| VC @ IPPM | ≤37.5 V at 10.7 A - clamping voltage limits stress on protected circuitry during worst-case surge |
| PPPM | 400 W (10/1000 μs) - sustains high-energy transients common in automotive load-dump or inductive switching |
| IPPM | 10.7 A - peak surge current capacity validated per REA-defined waveform for repeatable reliability |
| TJ max. | +175 °C - supports placement near heat sources in engine control units and motor drives |
| Qualification | AEC-Q101 qualified - certified for automotive electronics per stress-test requirements including HTRB, HTSL, and TCT |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking required for bidirectional operation; RoHS-compliant, AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either lead serves as input/output terminal; no cathode band - enables AC line or differential pair protection without orientation concern |
| Lead 1 / Lead 2 | Current path terminals | Leads conduct surge current equally in both directions; thermal resistance RθJL = 66 °C/W supports PCB trace heat sinking |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, low-leakage (<1 μA at VWM) avalanche behavior over lifetime and temperature |
| 400 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surges without degradation |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control modules and body electronics |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets flammability safety requirements for enclosed systems |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine management systems from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point before signal conditioning amplifier. Use Value: Limits transient voltage to ≤37.5 V, preventing latch-up or gate oxide damage in downstream op-amps and ADC front-ends rated for 5 V absolute maximum. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Primary surge suppression device mounted adjacent to terminal block, shunting energy before optocoupler input stage. Use Value: Clamps 1 kV/500 A surge (per IEC 61000-4-5) within 1 ns response time, preserving signal integrity and enabling >100,000 surge cycles per channel. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Safeguarding RS-485 transceiver bus lines in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to ground, providing symmetrical clamping on A/B data lines. Use Value: Maintains <1.5 V differential clamping margin across full temperature range, ensuring robust communication during 400 W transient events. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) TVS placed across motor terminals and MCU driver outputs to absorb inductive kickback. Use Value: Prevents false resets and flash corruption by limiting voltage overshoot to <37.5 V, compatible with 5 V tolerant MCU pins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | DO-214AA package; 24 V VBR; 600 W PPPM; higher IPPM (33.3 A); lower VC (38.9 V) | Surface-mount footprint; better suited for high-density PCBs where through-hole DO-41 is impractical | Select when board space is constrained and reflow assembly is preferred over through-hole soldering |
| P6KE27CA | DO-15 package; same VBR (25.7–28.4 V); 600 W PPPM; higher IPPM (27.5 A); identical VC (37.5 V) | Larger DO-15 body offers higher thermal mass; not AEC-Q101 qualified (E3 only) | Choose for non-automotive industrial applications requiring higher single-pulse energy handling without qualification overhead |
Compared with SMBJ24CA and P6KE27CA, the P4KE27CAHE3/54 provides AEC-Q101 certification in a compact DO-41 through-hole package - making it optimal for automotive service replacement, legacy board repairs, and cost-sensitive designs where qualification and mechanical robustness outweigh SMT density advantages.
Availability
P4KE27CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface surge suppression requiring stable component supply across extended production lifecycles.
Supply support for P4KE27CAHE3/54 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 P4KE27CAHE3/54 belongs to Vishay's TRANSZORB® family - engineered specifically for high-reliability transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for P4KE27CAHE3/54?
The P4KE27CAHE3/54 has a specified breakdown voltage range of 25.7 V to 28.4 V at 1.0 mA test current, representing ±10% tolerance around the nominal 27 V rating. This tight VBR window ensures consistent clamping behavior across production lots and temperature extremes from -55 °C to +175 °C.
Is P4KE27CAHE3/54 suitable for automotive applications?
Yes, the P4KE27CAHE3/54 carries AEC-Q101 qualification (indicated by HE3 suffix), confirming compliance with stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing - making it approved for under-hood and chassis-mounted automotive electronics.
What does the "CA" suffix mean in P4KE27CAHE3/54?
The "CA" suffix in P4KE27CAHE3/54 denotes bidirectional configuration: the device functions identically in both polarities, with no cathode marking required. This enables symmetric protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without orientation concerns during assembly.
How does P4KE27CAHE3/54 differ from unidirectional P4KE27AHE3/54?
Unlike the unidirectional P4KE27AHE3/54, the P4KE27CAHE3/54 lacks polarity marking and conducts equally in both directions. Its reverse leakage (ID) is specified at VWM = 23.1 V for both polarities, whereas the unidirectional version specifies forward voltage (VF = 3.5 V) and uses a cathode band for orientation.
What is the maximum clamping voltage of P4KE27CAHE3/54 under surge conditions?
The P4KE27CAHE3/54 clamps to a maximum of 37.5 V at its rated peak pulse current of 10.7 A (10/1000 μs waveform). This VC value is guaranteed across the full operating temperature range and forms the basis for safe interfacing with 3.3 V or 5 V logic components downstream.
P4KE27CAHE3/54 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
P4KE27CAHE3/54 FAQ
1.How can I place an order for P4KE27CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE27CAHE3/54 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 P4KE27CAHE3/54 reliable?
The price and inventory of P4KE27CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE27CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE27CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE27CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE27CAHE3/54?
P4KE27CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE27CAHE3/54 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 P4KE27CAHE3/54?
For technical support, including P4KE27CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE27CAHE3/54 requirements.
6.How does Aetrix verify that P4KE27CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE27CAHE3/54 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 P4KE27CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE27CAHE3/54?
All P4KE27CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE27CAHE3/54, 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 P4KE27CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE27CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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