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Vishay General Semiconductor - Diodes Division P4KE120-E3/54
- Part No.:
- P4KE120-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE120-E3/54.pdf
- Description:
- TVS DIODE 97.2VWM 173VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,812
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Product details
Overview
P4KE120-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 102 V stand-off voltage (VWM), 114–126 V breakdown voltage (VBR) at 1 mA, 165 V maximum clamping voltage (VC) at 2.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P4KE120-E3/54 datasheet, P4KE120-E3/54 pinout, P4KE120-E3/54 application, or P4KE120-E3/54 equivalent, this device is selected for robust overvoltage protection in automotive power rails, industrial sensor interfaces, telecom line cards, and DC power supply inputs where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are critical.
Technical Context
The P4KE120-E3/54 employs a glass-passivated silicon junction optimized for transient suppression in unidirectional configurations. Its 10/1000 μs waveform rating reflects standardized surge immunity testing per REA definitions, with thermal resistance of 66 °C/W (junction-to-lead) enabling reliable operation up to 175 °C junction temperature.
It exhibits a 0.107 %/°C temperature coefficient of breakdown voltage and 1.0 μA maximum reverse leakage at 102 V, ensuring stable clamping performance across industrial temperature ranges. The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine) and complies with JESD 22-B106 soldering conditions (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 102 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown Voltage) | 114–126 V at 1 mA - Confirmed conduction threshold under controlled test current |
| VC (Clamping Voltage) | 165 V at 2.4 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capacity per single 10/1000 μs transient event |
| TJ max. | 175 °C - Maximum allowable junction temperature for sustained reliability |
| RθJL | 66 °C/W - Thermal resistance from junction to lead, critical for PCB trace heat sinking design |
| Leakage Current (ID) | 1.0 μA at VWM - Minimal standby power loss and signal integrity impact |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body. Dimensions: 25.4 mm min. overall length, 5.2 mm max. body diameter, 0.86 mm lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit (e.g., ground or return path) |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential line (e.g., 12 V rail or signal input); conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term leakage performance and high surge endurance without degradation |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed layouts |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero defect reliability |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes stress on downstream ICs during transient events compared to higher-ratio suppressors |
| UL 94 V-0 compliant molding | Ensures flame-retardant behavior in enclosed industrial and automotive enclosures |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 102 V. Use Value: Limits voltage to ≤165 V during 2.4 A transient, protecting MCU power pins and CAN transceivers without crowbar action. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to EFT/burst noise and cable coupling. IC Role / Device Role / Timing Role: TVS mounted across sensor output terminals to shunt fast transients before reaching analog front-end. Use Value: Sub-1 ns response ensures clamping occurs before op-amp input stages saturate, preserving measurement accuracy. |
| Telecom Line Card Surge Protection | DC Power Supply Input Protection |
Use Scenario: Primary-side protection on AC/DC adapters and PoE injectors handling lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on DC bias lines feeding isolation transformers or PHY ICs. Use Value: Withstands 400 W pulses while maintaining <1.0 μA leakage at 102 V, avoiding false triggering in low-power standby modes. |
Use Scenario: Input stage of 24 V industrial SMPS subjected to inductive kickback from relay coils and motor drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to absorb repetitive 10/1000 μs transients. Use Value: 175 °C max junction temperature and 66 °C/W RθJL allow direct mounting to copper pour for thermal stability under 0.01% duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120A | DO-214AA package, 120 V VWM, 133–147 V VBR, 193 V VC at 2.08 A, 600 W PPPM | Higher power rating but larger footprint; lower clamping voltage per watt | Select when board space allows larger SMC/SMB package and >400 W surge margin is required |
| 1.5KE120A | DO-201AD package, same VWM/VBR range, 165 V VC at 2.4 A, 1500 W PPPM, higher IFSM (100 A) | Higher surge capability and thermal mass; not AEC-Q101 qualified | Select for non-automotive high-energy industrial environments where qualification is not mandatory |
Compared with SMBJ120A and 1.5KE120A, the P4KE120-E3/54 offers AEC-Q101 qualification and DO-41 compatibility with legacy through-hole designs, while delivering precise 102 V stand-off and verified 165 V clamping-making it optimal for cost-sensitive, space-constrained automotive and industrial control boards requiring certified reliability.
Availability
P4KE120-E3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line cards, and DC power supply inputs requiring stable component supply with full traceability and lifecycle management.
Supply support for P4KE120-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, MOSFETs, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE120-E3/54 belongs to Vishay's TRANSZORB® family of transient voltage suppressors, engineered specifically for robust overvoltage protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of P4KE120-E3/54 and how is it measured?
The P4KE120-E3/54 has a maximum clamping voltage (VC) of 165 V, measured at a peak pulse current (IPPM) of 2.4 A using a standardized 10/1000 μs waveform. This value represents the highest voltage the device allows across its terminals during a transient event, directly protecting downstream components. The test condition is defined in Vishay document 88365 and aligns with IEC 61000-4-5 surge immunity requirements.
Is P4KE120-E3/54 RoHS-compliant and qualified for automotive use?
Yes, the P4KE120-E3/54 carries the "E3" suffix indicating RoHS compliance and commercial-grade qualification. For automotive applications, the "HE3" variant (e.g., P4KE120AHE3/54) is AEC-Q101 qualified. The base P4KE120-E3/54 itself is not AEC-Q101 certified, though its construction and thermal specs meet many automotive subsystem requirements when validated per customer design rules.
What is the meaning of the "-E3/54" suffix in P4KE120-E3/54?
The "-E3" denotes RoHS-compliant matte tin plating and JESD 201 Class 1A whisker resistance; "/54" specifies the preferred packaging code for 13-inch paper tape and reel, with a base quantity of 5500 units. This ordering format ensures consistent assembly-line compatibility and traceability for automated placement systems used with the P4KE120-E3/54.
How does P4KE120-E3/54 differ from bidirectional variants like P4KE120CA?
The P4KE120-E3/54 is unidirectional, with polarity marked by a cathode band and intended for DC line-to-ground protection. In contrast, P4KE120CA is bidirectional, lacks polarity marking, and clamps symmetrically in both directions-suitable for AC lines or differential signal pairs. Their VBR and VC values differ: P4KE120CA has 114–126 V VBR but clamps at ±165 V, whereas P4KE120-E3/54 clamps only in reverse bias.
What thermal derating applies to P4KE120-E3/54 above 25 °C ambient?
The P4KE120-E3/54 follows Vishay's standard derating curve: power dissipation decreases linearly from 1.5 W at 25 °C to zero at 175 °C junction temperature. At 75 °C lead temperature (TL), its rated power drops to 1.5 W; beyond that, thermal resistance (RθJL = 66 °C/W) governs safe operation. Layouts must provide adequate copper area to maintain TJ ≤ 175 °C under worst-case surge duty cycles.
P4KE120-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 97.2V
- Voltage - Breakdown (Min):
- 108V
- Voltage - Clamping (Max) @ Ipp:
- 173V
- Current - Peak Pulse (10/1000µs):
- 2.3A
- 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)
P4KE120-E3/54 FAQ
1.How can I place an order for P4KE120-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE120-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 P4KE120-E3/54 reliable?
The price and inventory of P4KE120-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 P4KE120-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE120-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE120-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE120-E3/54?
P4KE120-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE120-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 P4KE120-E3/54?
For technical support, including P4KE120-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE120-E3/54 requirements.
6.How does Aetrix verify that P4KE120-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE120-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 P4KE120-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE120-E3/54?
All P4KE120-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE120-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 P4KE120-E3/54 part is unused and in its original packaging.
Return procedure for P4KE120-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE120-E3/54 Tags
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