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Vishay General Semiconductor - Diodes Division P4KE27C-E3/73
- Part No.:
- P4KE27C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE27C-E3/73.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,171
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Product details
Overview
P4KE27C-E3/73 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 at 1.0 mA), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 10.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4KE27C-E3/73 datasheet, P4KE27C-E3/73 pinout, P4KE27C-E3/73 application, or P4KE27C-E3/73 equivalent, this device is selected for robust overvoltage protection in automotive sensor interfaces, industrial I/O modules, and telecom line drivers where bidirectional surge immunity and AEC-Q101 qualification are required.
Technical Context
The P4KE27C-E3/73 operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its bidirectional construction (CA suffix). Its 10/1000 µs waveform response enables suppression of lightning-induced surges and inductive switching transients without polarity dependence.
Thermal performance is defined by RθJL = 66 °C/W and RθJA = 100 °C/W, with operating junction temperature range from –55 °C to +175 °C. It meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker resistance, and is AEC-Q101 qualified for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA - defines reliable avalanche initiation threshold under reverse bias |
| VWM | 23.1 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 37.5 V at 10.7 A - clamped voltage during 400 W transient, limiting stress on downstream ICs |
| PPPM | 400 W - peak surge power handling with 10/1000 µs waveform, supporting IEC 61000-4-5 Level 3 |
| IPPM | 10.7 A - peak pulse current capability, enabling protection against 1 kV/500 Ω surge sources |
| TJ max | +175 °C - high-temperature operation suitable for under-hood automotive environments |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with UL 94 V-0 epoxy molding |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, molded epoxy body with glass-passivated chip; no polarity marking for bidirectional types; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts during positive voltage excursions above VWM, clamping to ≤37.5 V |
| Cathode | Transient current entry (negative half-cycle) | Conducts during negative voltage excursions below –VWM, symmetric clamping to ≤–37.5 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 1 kV open-circuit / 500 Ω source impedance |
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time) |
| UL 94 V-0 flammability rating | Meets safety requirements for enclosed industrial and automotive enclosures |
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 ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤37.5 V, preventing latch-up or gate oxide damage in 5 V/3.3 V interface ICs while maintaining signal integrity. | Use Scenario: Shielding digital input/output terminals of programmable logic controllers from inductive kickback and ESD in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC field wiring, installed before optocoupler or level-shifter inputs. Use Value: Withstands repetitive 400 W surges at 0.01% duty cycle, ensuring >100,000 surge events without degradation in harsh industrial environments. |
| Telecom Line Driver Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Safeguarding RS-485/RS-422 transceivers in base station backhaul links exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamping backup for fast transients. Use Value: Clamps 10/1000 µs surges to 37.5 V within <1 ns, protecting 3.3 V transceiver I/O pins rated for only 15 V absolute maximum. | Use Scenario: Adding secondary surge protection on DC output rails of AC/DC adapters used in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Final-stage TVS across regulated 5 V or 12 V outputs to suppress conducted transients from upstream SMPS or external coupling. Use Value: Maintains VWM = 23.1 V margin above 12 V rail, avoiding leakage-related power loss while enabling compliance with IEC 62368-1 surge requirements. |
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 | Surface-mount SMB package; 24 V VWM, 38.9 V VC @ 10.3 A; same 400 W PPPM | Requires PCB rework for SMT layout; better high-frequency response due to lower parasitic inductance | Select when board space is constrained and automated assembly is preferred over through-hole mounting. |
| 1.5KE27CA | Higher PPPM = 1500 W; same DO-41 package; VWM = 23.1 V, VC = 43.0 V @ 35 A | Over-spec'd for typical 400 W surge needs; higher clamping voltage reduces protection margin for low-voltage ICs | Select only when legacy 1.5 kW surge test profiles (e.g., MIL-STD-1275) must be met without redesign. |
Compared with SMBJ24CA and 1.5KE27CA, the P4KE27C-E3/73 offers optimal balance of through-hole manufacturability, AEC-Q101 qualification, and precise 27 V clamping for 24 V system rails-making it ideal for cost-sensitive automotive and industrial designs requiring proven reliability without SMT conversion.
Availability
P4KE27C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line driver circuits requiring stable component supply across multi-year production cycles.
Supply support for P4KE27C-E3/73 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 and automotive-grade qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust bidirectional transient suppression in harsh environments-including under-hood automotive, factory automation, and outdoor telecom infrastructure.
FAQ
What does the "C" in P4KE27C-E3/73 signify?
The "C" suffix in P4KE27C-E3/73 indicates a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping for both positive and negative polarity surges. Unlike unidirectional variants (e.g., P4KE27A), the P4KE27C-E3/73 has no cathode marking and functions identically in either orientation-critical for AC-coupled or differential signal protection where polarity is undefined.
Is P4KE27C-E3/73 AEC-Q101 qualified?
Yes, P4KE27C-E3/73 is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number 88365, Revision 16-Sep-2021). This qualification covers stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge-validating its suitability for automotive powertrain, chassis, and body electronics applications where reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of P4KE27C-E3/73 under surge conditions?
The maximum clamping voltage (VC) of P4KE27C-E3/73 is 37.5 V at 10.7 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and ensures downstream components-such as 3.3 V or 5 V interface ICs-are protected from overvoltage damage during transient events, provided the circuit design accounts for trace inductance and layout parasitics.
Can P4KE27C-E3/73 replace P4KE27A in a design?
No, P4KE27C-E3/73 cannot directly replace P4KE27A without circuit review: P4KE27A is unidirectional (cathode-marked, conducts only in reverse bias), while P4KE27C-E3/73 is bidirectional (no marking, conducts in both directions). Substitution may cause unintended conduction in DC-biased lines or violate polarity-sensitive protection schemes-always verify signal topology and bias conditions before interchange.
What is the lead finish and solderability specification for P4KE27C-E3/73?
P4KE27C-E3/73 features matte tin-plated leads compliant with J-STD-002 (solderability) and JESD 22-B102 (solder heat resistance). It supports solder dip at 275 °C for up to 10 seconds per JESD 22-B106, and passes JESD 201 Class 1A whisker testing-ensuring reliable through-hole solder joint formation and long-term interconnect integrity in high-reliability applications.
P4KE27C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 10.2A
- 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)
P4KE27C-E3/73 FAQ
1.How can I place an order for P4KE27C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE27C-E3/73 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 P4KE27C-E3/73 reliable?
The price and inventory of P4KE27C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE27C-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE27C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE27C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE27C-E3/73?
P4KE27C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE27C-E3/73 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 P4KE27C-E3/73?
For technical support, including P4KE27C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE27C-E3/73 requirements.
6.How does Aetrix verify that P4KE27C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE27C-E3/73 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 P4KE27C-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE27C-E3/73?
All P4KE27C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE27C-E3/73, 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 P4KE27C-E3/73 part is unused and in its original packaging.
Return procedure for P4KE27C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE27C-E3/73 Tags
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