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Vishay General Semiconductor - Diodes Division P6KE18HE3/54
- Part No.:
- P6KE18HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE18HE3/54.pdf
- Description:
- TVS DIODE 14.5VWM 26.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
P6KE18HE3/54 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 18 V breakdown voltage (VBR min/max = 17.1–18.9 V at 1.0 mA), 15.3 V stand-off voltage (VWM), 25.2 V clamping voltage (VC) at 23.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive ECUs, industrial I/O modules, and power supply front-ends.
For engineers reviewing the P6KE18HE3/54 datasheet, P6KE18HE3/54 pinout, P6KE18HE3/54 application, or P6KE18HE3/54 equivalent, this AEC-Q101 qualified TVS offers verified surge immunity for 12 V/24 V systems, low-leakage operation (<1.0 μA at VWM), and robust thermal performance up to +175 °C junction temperature - critical for under-hood and factory-floor deployments.
Technical Context
The P6KE18HE3/54 operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold, it avalanches rapidly (<1 ns response time) to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping across repetitive transients.
Rated for 600 W peak pulse power (10/1000 μs), it sustains 100 A non-repetitive forward surge current (IFSM) and exhibits 20 °C/W typical junction-to-lead thermal resistance - allowing direct PCB trace conduction cooling without heatsinks in most board-level implementations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 17.1 V / 18.9 V at 1.0 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 15.3 V - maximum continuous reverse operating voltage before leakage rises above 1.0 μA |
| VC @ IPPM | 25.2 V at 23.8 A - clamping voltage limiting protected circuit exposure during worst-case 600 W surge |
| PPPM | 600 W - peak transient energy absorption capability per 10/1000 μs waveform, duty cycle ≤ 0.01 % |
| IFSM | 100 A - single half-sine surge current handling (8.3 ms), supporting fuse coordination in fault-clearing paths |
| TJ max | +175 °C - extended junction temperature rating enabling use in high-ambient automotive and industrial environments |
| RθJL | 20 °C/W - low thermal resistance enables efficient heat transfer to PCB copper, reducing derating needs |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or common return path; establishes reference for clamping action |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V rail); avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 1 (inductive switch-off) and IEC 61000-4-5 Combination Wave surges without degradation |
| Ultra-low leakage | <1.0 μA at 15.3 V - minimizes standby power loss in battery-powered and always-on systems |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability - certified for safety-critical industrial assemblies |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery line in engine control unit exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between battery rail and LDO/regulator input. Use Value: Clamps transients to ≤25.2 V, preventing damage to 3.3 V/5 V microcontrollers and CAN transceivers downstream. |
Use Scenario: 4–20 mA current loop input of PLC analog module subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Primary protection device mounted at connector entry point, ahead of signal conditioning op-amps. Use Value: Limits induced voltage to safe levels within 1 ns, preserving ADC accuracy and avoiding latch-up in precision front-end stages. |
| DC Power Supply Input Stage | Consumer Appliance Motor Drive Protection |
Use Scenario: Input stage of 24 V AC/DC adapter powering smart home gateway, subject to lightning-induced surges on mains-connected secondary side. IC Role / Device Role / Timing Role: First-line defense parallel to bulk capacitor, clamping fast-rising transients before they reach switching controller IC. Use Value: Absorbs 600 W pulses without failure, maintaining system uptime and eliminating need for redundant varistors. |
Use Scenario: Brushed DC motor driver PCB in washing machine control board, where commutation spikes threaten MCU GPIO and gate drivers. IC Role / Device Role / Timing Role: Uni-directional TVS across motor terminals and across H-bridge supply rails. Use Value: Suppresses >100 V spikes to <25.2 V, extending MOSFET lifetime and preventing false resets in embedded firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ18A | Lower peak pulse power (400 W), SMA package (surface-mount), 20% higher VC (32.4 V) | Better suited for space-constrained PCBs but requires layout redesign and offers reduced surge margin | Select when footprint size is critical and surge energy is limited to IEC 61000-4-2 level 4 only |
| 1.5KE18A | Same DO-15 package, identical VBR/VC, but commercial-grade (non-AEC-Q101), 1.5 kW rating | Lacks automotive qualification; higher power rating increases cost and thermal mass unnecessarily for 600 W use cases | Choose only for non-automotive industrial applications where AEC-Q101 is not required and higher PPPM adds no benefit |
Compared with SMAJ18A and 1.5KE18A, P6KE18HE3/54 delivers optimal balance of AEC-Q101 compliance, proven 600 W surge handling in axial DO-15 form factor, and cost-effective qualification for volume automotive production - without over-specifying power or sacrificing mounting flexibility.
Availability
P6KE18HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and consumer appliance power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE18HE3/54 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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-sensitive, high-volume transient suppression in automotive, industrial, and consumer power systems where robustness and qualification matter.
FAQ
What is the breakdown voltage tolerance of P6KE18HE3/54?
The P6KE18HE3/54 has a specified breakdown voltage range of 17.1 V to 18.9 V at 1.0 mA test current, representing ±5% tolerance around the nominal 18 V rating. This tight VBR window ensures predictable clamping behavior across production lots and temperature extremes, critical for protecting 15 V-rated downstream components without premature conduction.
Is P6KE18HE3/54 suitable for automotive applications?
Yes, P6KE18HE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its +175 °C maximum junction temperature, glass-passivated junction, and validation against temperature cycling, HTRB, and ESD make it appropriate for engine control modules, body control units, and infotainment power rails where reliability is mandated.
How does the HE3 suffix differ from E3 in P6KE18HE3/54?
The HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates RoHS compliance only (commercial grade). P6KE18HE3/54 meets automotive reliability standards, including enhanced metallurgical stability and extended life testing - essential for safety-critical vehicle subsystems.
What is the maximum clamping voltage of P6KE18HE3/54 under surge conditions?
The maximum clamping voltage (VC) of P6KE18HE3/54 is 25.2 V at 23.8 A peak pulse current (10/1000 μs waveform). This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events, ensuring compatibility with 24 V system components rated for ≤30 V absolute maximum.
Can P6KE18HE3/54 be used in bi-directional configurations?
No, P6KE18HE3/54 is a uni-directional TVS diode, identifiable by the cathode band marking. For bi-directional protection, Vishay specifies CA-suffixed variants (e.g., P6KE18CA). Using P6KE18HE3/54 in reverse-biased mode risks permanent damage due to lack of symmetrical avalanche structure.
P6KE18HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14.5V
- Voltage - Breakdown (Min):
- 16.2V
- Voltage - Clamping (Max) @ Ipp:
- 26.5V
- Current - Peak Pulse (10/1000µs):
- 22.6A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE18HE3/54 FAQ
1.How can I place an order for P6KE18HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE18HE3/54 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 P6KE18HE3/54 reliable?
The price and inventory of P6KE18HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE18HE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE18HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE18HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE18HE3/54?
P6KE18HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE18HE3/54 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 P6KE18HE3/54?
For technical support, including P6KE18HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE18HE3/54 requirements.
6.How does Aetrix verify that P6KE18HE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE18HE3/54 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 P6KE18HE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE18HE3/54?
All P6KE18HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE18HE3/54, 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 P6KE18HE3/54 part is unused and in its original packaging.
Return procedure for P6KE18HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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