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Vishay General Semiconductor - Diodes Division P4KE120HE3/54
- Part No.:
- P4KE120HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE120HE3/54.pdf
- Description:
- TVS DIODE 97.2VWM 173VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,413
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Product details
Overview
P4KE120HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 114 V minimum breakdown voltage (VBR), 102 V maximum stand-off voltage (VWM), 165 V clamping voltage (VC) at 2.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the P4KE120HE3/54 datasheet, P4KE120HE3/54 pinout, P4KE120HE3/54 application, or P4KE120HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, DO-41 mechanical dimensions, and real-world use cases in automotive and industrial transient suppression.
Technical Context
The P4KE120HE3/54 operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to ESD and lightning-induced transients. Its 102 V stand-off voltage allows reliable operation under nominal 96–100 V DC bus conditions while maintaining low leakage (<1.0 μA).
Clamping occurs at 165 V under 2.4 A 10/1000 μs surge, delivering predictable voltage limiting without latch-up. Thermal resistance is 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient), supporting operation up to +175 °C junction temperature with appropriate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 102 V maximum - ensures stable blocking during normal 96 V DC bus operation without leakage-induced power loss |
| VBR (min/max) | 114 V / 126 V at 1.0 mA - defines precise avalanche initiation threshold for repeatable clamping behavior |
| VC @ IPPM | 165 V at 2.4 A - limits transient voltage to safe levels for downstream 150 V-rated MOSFETs and gate drivers |
| PPPM | 400 W - sustains single 10/1000 μs surges common in ISO 7637-2 Pulse 1/2a/5a automotive testing |
| IFSM | 40 A (8.3 ms half-sine) - handles inrush and short-circuit fault currents in DC power distribution |
| TJ max | +175 °C - enables placement near high-temperature components like power inductors and heatsinks |
| RθJL | 66 °C/W - supports thermal design with minimal lead copper; requires ≥10 mm lead length for rated derating |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band; RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or low-side return path; enables bidirectional protection when paired with reverse diode |
| Cathode (banded end) | Transient current sink during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); absorbs surge energy into ground via low-impedance path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, low-drift VBR over 1000+ surge events and lifetime operation at TJ = 150 °C |
| AEC-Q101 qualification (HE3) | Validated for automotive under-hood applications including engine control modules and battery management systems |
| 400 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 24 V commercial vehicle systems |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., >1 kV/μs ESD events) |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures per UL/IEC 60664-1 insulation coordination standards |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units against ISO 7637-2 load dump transients up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery feed and DC/DC converter input. Use Value: Limits voltage to ≤165 V during 120 V load dump, preventing damage to 150 V-rated input capacitors and controller ICs. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor before optocoupler or Schmitt trigger input stage. Use Value: Clamps 1 kV/100 Ω ring wave transients to <170 V within <1 ns, preserving signal integrity and input logic thresholds. |
| Telecom DC Power Feeds | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding -48 V telecom rectifier outputs from lightning-induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Bidirectional protection (using CA variant) across output terminals of DC power supply modules. Use Value: Withstands 400 W pulses without degradation, ensuring uptime in central office equipment meeting GR-1089-CORE immunity requirements. |
Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFETs driven by isolated gate drivers in motor inverters. IC Role / Device Role / Timing Role: Clamp placed between gate and source to suppress Miller-induced voltage spikes during switching. Use Value: 165 V clamping voltage prevents VGS exceedance beyond ±20 V rating of common 650 V Si MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | DO-214AA package; 110 V VWM; 187 V VC @ 2.13 A; 600 W PPPM | Higher power rating but larger footprint; lower clamping ratio (VC/VWM = 1.70 vs. 1.62) | Select when higher surge margin is required and board space permits SMB footprint. |
| 1.5KE120A | DO-201AD package; same VWM/VBR specs; 165 V VC @ 2.4 A; 1500 W PPPM | Three-times higher peak power; longer lead time; not AEC-Q101 qualified | Choose for non-automotive industrial applications needing higher single-pulse energy absorption. |
Compared with SMBJ110A and 1.5KE120A, the P4KE120HE3/54 offers AEC-Q101 qualification in compact DO-41, optimal clamping ratio for 100 V-class systems, and proven reliability in automotive under-hood environments - making it the preferred choice where qualification, size, and consistent clamping performance are jointly critical.
Availability
P4KE120HE3/54 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC input stages, telecom DC power feeds, and MOSFET gate driver circuits requiring stable component supply across production lifecycles.
Supply support for P4KE120HE3/54 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 passive components with emphasis on reliability and automotive-grade qualification.
The P4KE120HE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - including automotive, industrial, and telecom infrastructure where failure is not an option.
FAQ
What is the clamping voltage of the P4KE120HE3/54 and how is it measured?
The P4KE120HE3/54 has a maximum clamping voltage (VC) of 165 V at 2.4 A peak pulse current, tested with a 10/1000 μs waveform per IEC 61000-4-5. This value is measured across the device terminals under standardized surge conditions and represents the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within safe operating voltage ranges.
Is the P4KE120HE3/54 suitable for automotive applications?
Yes, the P4KE120HE3/54 is AEC-Q101 qualified (HE3 suffix), meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and surge endurance required for automotive under-hood and chassis-mounted electronics. Its 175 °C maximum junction temperature and DO-41 rugged packaging make it suitable for engine control units, body control modules, and battery management systems.
How does the P4KE120HE3/54 differ from the standard P4KE120A-E3/54?
The P4KE120HE3/54 differs from P4KE120A-E3/54 solely in qualification level: the "H" denotes AEC-Q101 qualification, while the base "E3" version is commercial grade only. Both share identical electrical specs (VWM, VBR, VC, PPPM), DO-41 package, and RoHS compliance - but only the HE3 variant is approved for automotive production use per industry reliability standards.
What is the thermal resistance of the P4KE120HE3/54 and how does it affect layout?
The P4KE120HE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area on both leads and avoid excessive trace length - especially critical in high-temperature environments like automotive power modules.
Can the P4KE120HE3/54 be used in bidirectional protection circuits?
No - the P4KE120HE3/54 is unidirectional only, with cathode marked by a band. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., P4KE120CA). Using the unidirectional P4KE120HE3/54 in AC or floating-line applications risks forward conduction and failure; always match polarity and application topology to the device type explicitly stated in the datasheet.
P4KE120HE3/54 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:
- -
- 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)
P4KE120HE3/54 FAQ
1.How can I place an order for P4KE120HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE120HE3/54 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 P4KE120HE3/54 reliable?
The price and inventory of P4KE120HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE120HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE120HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE120HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE120HE3/54?
P4KE120HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE120HE3/54 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 P4KE120HE3/54?
For technical support, including P4KE120HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE120HE3/54 requirements.
6.How does Aetrix verify that P4KE120HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE120HE3/54 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 P4KE120HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE120HE3/54?
All P4KE120HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE120HE3/54, 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 P4KE120HE3/54 part is unused and in its original packaging.
Return procedure for P4KE120HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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