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Vishay General Semiconductor - Diodes Division P4KE27HE3/54
- Part No.:
- P4KE27HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE27HE3/54.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
P4KE27HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. 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), clamps transients to ≤37.5 V at 10.7 A peak pulse current (10/1000 μs), and delivers 400 W peak pulse power. It is AEC-Q101 qualified and used to protect MOSFET gates and sensor signal lines in automotive powertrain control units.
For engineers reviewing the P4KE27HE3/54 datasheet, P4KE27HE3/54 pinout, P4KE27HE3/54 application, or P4KE27HE3/54 equivalent, key selection criteria include its unidirectional polarity, 175 °C max junction temperature, glass-passivated junction, 1.5 W steady-state power dissipation, and compliance with JESD 201 Class 2 whisker testing - all critical for high-reliability industrial and automotive deployments.
Technical Context
This device operates as a clamping-type overvoltage protector: under normal bias it presents high impedance (<1.0 μA reverse leakage at 23.1 V), but triggers into low-impedance conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤37.5 V. Its 66 °C/W junction-to-lead thermal resistance enables effective heat dissipation during repetitive 10/1000 μs surges at ≤0.01% duty cycle.
The P4KE27HE3/54 uses a glass-passivated silicon junction for stable VBR tolerance (±5%), fast response time (<1.0 ns), and low incremental surge resistance. Its DO-41 package supports manual or automated through-hole assembly, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA - defines precise clamping onset threshold with ±5% tolerance for predictable protection margin |
| VWM | 23.1 V - maximum continuous reverse operating voltage; ensures no conduction during nominal system operation |
| VC @ IPPM | ≤37.5 V at 10.7 A (10/1000 μs) - actual clamped voltage seen by protected IC, enabling safe margin below 40 V logic rails |
| PPPM | 400 W - peak transient energy handling capacity per single 10/1000 μs pulse, sufficient for ISO 7637-2 Pulse 1/2a/5a |
| TJ max | +175 °C - enables operation in under-hood automotive environments without derating up to 125 °C ambient |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Whisker Test | JESD 201 Class 2 - mitigates tin whisker growth risk in long-life sealed systems requiring >15-year field life |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; cathode indicated by color band on body; lead length ≥9.5 mm for thermal derating compliance; UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional configuration; enables low-VF (3.5 V @ 25 A) clamping path |
| Cathode | Reverse-biased terminal | Marked end (color band); connected to protected line; blocks VWM until VBR exceeded, then conducts surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature (-55 to +175 °C) and lifetime, with <0.1%/°C tempco and no parameter drift |
| 400 W peak pulse power (10/1000 μs) | Handles automotive load-dump transients (ISO 7637-2 Pulse 5a) without degradation across ≥1000 cycles |
| AEC-Q101 qualification | Validated for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field performance |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes stress on downstream components - e.g., keeps 3.3 V/5 V MCU I/O within safe SOA during 1 kV ESD events |
| JESD 201 Class 2 whisker resistance | Eliminates latent short-circuit risk in hermetically sealed modules operating >10 years at elevated temperature/humidity |
Applications
| Automotive Powertrain Control | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver pins from alternator load dump and inductive switching spikes in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, triggered within <1 ns of overvoltage event. Use Value: Limits transient voltage to ≤37.5 V, preserving MCU I/O integrity and avoiding reset or latch-up during 12 V system surges up to 400 W. |
Use Scenario: Shielding 4–20 mA current-loop sensor outputs from EFT bursts and lightning-induced surges in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-mode protector on analog output line; remains non-conductive below 23.1 V, clamps only during fault conditions. Use Value: Maintains signal accuracy with <1.0 μA leakage at 23.1 V while surviving repeated 10/1000 μs transients per IEC 61000-4-5 Level 3. |
| Consumer Power Adapter Input Stage | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on DC output rails of AC/DC adapters for USB-C PD chargers. IC Role / Device Role / Timing Role: Final-stage clamp after primary regulation; absorbs residual ringing and cross-regulation overshoot. Use Value: Prevents damage to downstream USB-PD controllers by clamping 30 V transients to ≤37.5 V with sub-ns response and no recovery delay. |
Use Scenario: Protecting Ethernet PHY interface pins from induced surges on PoE-powered network switches. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential pairs; coordinated with common-mode chokes to suppress both differential and common-mode transients. Use Value: Enables compliance with IEEE 802.3af/at surge immunity requirements using a single DO-41 device per line pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | DO-214AA package, 24 V VBR, 600 W PPPM, 100 A IPPM, surface-mount | Higher power rating but SMT-only; requires PCB rework for through-hole legacy designs | Select SMBJ24A only if board space is constrained and assembly supports SMT; not drop-in compatible with P4KE27HE3/54 |
| 1.5KE27A | Same DO-41 package, 27 V VBR, but 1500 W PPPM, higher IPPM (43.3 A), commercial grade only (no AEC-Q101) | Lacks automotive qualification; unsuitable for safety-critical vehicle systems despite identical footprint | Choose 1.5KE27A only for cost-sensitive industrial applications where AEC-Q101 is not mandated |
Compared with SMBJ24A and 1.5KE27A, the P4KE27HE3/54 uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and optimized 400 W clamping for mid-tier automotive and industrial surge classes - making it the preferred choice where reliability, legacy assembly, and standardized test compliance intersect.
Availability
P4KE27HE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interfaces, and telecom line protection requiring stable component supply, long-term lifecycle assurance, and traceable AEC-Q101 sourcing.
Supply support for P4KE27HE3/54 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The P4KE27HE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments - emphasizing clamping precision, thermal stability, and qualification rigor over generic surge handling.
FAQ
What is the breakdown voltage tolerance of the P4KE27HE3/54?
The P4KE27HE3/54 has a specified breakdown voltage range of 25.7 V to 28.4 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 27 V rating. This tight tolerance ensures consistent clamping behavior across production lots and temperature ranges, critical for protecting sensitive 3.3 V or 5 V logic interfaces without false triggering.
Is the P4KE27HE3/54 suitable for automotive applications?
Yes, the P4KE27HE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including powertrain control modules and body electronics. Its 175 °C maximum junction temperature, JESD 201 Class 2 whisker resistance, and glass-passivated junction ensure reliability under extended thermal cycling and high-humidity under-hood conditions - meeting OEM requirements for 15-year field life.
How does the P4KE27HE3/54 differ from the commercial-grade P4KE27A-E3/54?
The P4KE27HE3/54 differs from P4KE27A-E3/54 solely in qualification level: the "H" suffix denotes AEC-Q101 qualification, including additional stress testing (HTGB, H3TRB, temperature cycling), while both share identical electrical specs, DO-41 package, and RoHS-compliant construction. The HE3 version is mandatory for automotive Tier 1 suppliers; the E3 version suffices for industrial or consumer use.
What is the maximum clamping voltage of the P4KE27HE3/54 during a surge event?
The P4KE27HE3/54 clamps to a maximum of 37.5 V at its rated peak pulse current of 10.7 A (10/1000 μs waveform). This clamping voltage is guaranteed across temperature and lifetime, providing a safe margin below typical 40 V absolute maximum ratings of automotive MCUs and transceivers - ensuring protection without compromising signal integrity.
Can the P4KE27HE3/54 be used in bidirectional configurations?
No, the P4KE27HE3/54 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional operation requires the CA-suffix variant (e.g., P4KE27CA). Using the unidirectional P4KE27HE3/54 in AC or floating-line applications risks forward conduction and failure; always verify polarity alignment in schematic and layout before deployment.
P4KE27HE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- 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)
P4KE27HE3/54 FAQ
1.How can I place an order for P4KE27HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE27HE3/54 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 P4KE27HE3/54 reliable?
The price and inventory of P4KE27HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE27HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE27HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE27HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE27HE3/54?
P4KE27HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE27HE3/54 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 P4KE27HE3/54?
For technical support, including P4KE27HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE27HE3/54 requirements.
6.How does Aetrix verify that P4KE27HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE27HE3/54 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 P4KE27HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE27HE3/54?
All P4KE27HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE27HE3/54, 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 P4KE27HE3/54 part is unused and in its original packaging.
Return procedure for P4KE27HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE27HE3/54 Tags
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