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Vishay General Semiconductor - Diodes Division P4KE120AHE3/54
- Part No.:
- P4KE120AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE120AHE3/54.pdf
- Description:
- TVS DIODE 102VWM 165VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,573
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Product details
Overview
P4KE120AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features 120 V breakdown voltage (VBR = 114–126 V at 1.0 mA), 102 V stand-off voltage (VWM), 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 - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the P4KE120AHE3/54 datasheet, P4KE120AHE3/54 pinout, P4KE120AHE3/54 application, or P4KE120AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C max junction temperature, low 1.0 µA reverse leakage at VWM, DO-41 mechanical compatibility, and verified clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified breakdown range. Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1.0 ns), enabling effective suppression of ESD and inductive switching spikes.
The device is rated for 400 W peak pulse power (10/1000 µs), derates linearly above 25 °C ambient, and supports 40 A non-repetitive forward surge current (8.3 ms half-sine). Thermal resistance is 66 °C/W junction-to-lead, confirming suitability for lead-mounted PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 114 V / 126 V at 1.0 mA - defines precise clamping onset threshold for overvoltage protection |
| VWM | 102 V - maximum continuous reverse working voltage before leakage rises significantly |
| VC @ IPPM | 165 V at 2.4 A - clamped voltage during 10/1000 µs transient, limiting downstream stress |
| PPPM | 400 W - peak surge energy absorption capability under standardized lightning/surge test waveform |
| IFSM | 40 A - single half-sine surge current handling (8.3 ms), critical for relay/coil turn-off protection |
| TJ max | +175 °C - enables operation in under-hood automotive or high-temperature industrial environments |
| RθJL | 66 °C/W - quantifies thermal path efficiency from junction to PCB lead, guiding layout thermal design |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body 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 | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail or sensor input); conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 400 W 10/1000 µs pulse rating | Meets IEC 61000-4-5 Level 3 surge immunity requirements for industrial and automotive ports |
| Low 1.0 µA reverse leakage @ VWM | Minimizes standby power loss and avoids false triggering in high-impedance sensing circuits |
| DO-41 mechanical standardization | Enables drop-in replacement across legacy designs and compatibility with automated axial insertion equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog voltage outputs of engine coolant temperature (ECT) sensors from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground, clamping transients before they reach ADC input. Use Value: Limits voltage seen by downstream MCU ADC to ≤165 V during 12 V system load dump, preserving measurement integrity and preventing latch-up. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controller (PLC) modules against field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector on dry-contact inputs, absorbing inductive kickback from solenoid/relay coils. Use Value: Withstands 40 A surge current (8.3 ms) without degradation, eliminating need for external series impedance in Class 1 input circuits. |
| Telecom Line Interface | Consumer Power Supply Input |
|
Use Scenario: Secondary-level surge protection on 48 V DC power feeds for remote radio units (RRUs) in cellular base stations. IC Role / Device Role / Timing Role: Back-to-back clamping element in conjunction with primary GDT, handling residual fast-rising transients. Use Value: 1.0 ns response time ensures clamping occurs before voltage overshoot exceeds safe margin for downstream DC/DC converters. |
Use Scenario: Input-stage transient suppression on AC/DC adapter secondary-side 12 V outputs feeding set-top box mainboard. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to common ground, shunting surge energy away from LDO regulators. Use Value: 102 V VWM allows full 12 V nominal operation with 20% tolerance while blocking normal ripple, yet triggers reliably at 114 V. |
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, 1.5× smaller footprint, 600 W PPPM, same VBR range but higher VC (193 V) | Better suited for space-constrained SMT layouts; requires rework of pad geometry and thermal relief | Select SMBJ120A when board area is constrained and higher clamping voltage is acceptable |
| 1.5KE120A | Same DO-41 package, 1500 W PPPM, higher IPPM (12.3 A), larger junction capacitance (120 pF vs. ~50 pF) | Higher energy handling for severe surge environments (e.g., outdoor telecom), but greater capacitive loading on high-speed lines | Choose 1.5KE120A where surge threat level exceeds IEC 61000-4-5 Level 4 and signal bandwidth permits added capacitance |
Compared with SMBJ120A and 1.5KE120A, the P4KE120AHE3/54 offers optimal balance of AEC-Q101 compliance, proven DO-41 manufacturability, and moderate 400 W surge capacity - making it preferred for cost-sensitive, thermally stable, and automotive-qualified through-hole designs.
Availability
P4KE120AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power feeds, and consumer power supply inputs requiring stable component supply across long production lifecycles.
Supply support for P4KE120AHE3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The P4KE120AHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance for P4KE120AHE3/54?
The P4KE120AHE3/54 has a breakdown voltage (VBR) range of 114 V to 126 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 120 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for consistent protection in automotive and industrial systems where margin control is essential. The specification is verified per ANSI/IEEE C62.35 standards.
Is P4KE120AHE3/54 suitable for bidirectional transient suppression?
No, P4KE120AHE3/54 is a unidirectional TVS diode - its cathode marking and electrical characteristics apply only in reverse-bias mode. For bidirectional protection, Vishay specifies part numbers ending in "CA" (e.g., P4KE120CA). Using P4KE120AHE3/54 in AC-coupled or symmetrical signal paths would result in forward conduction during negative half-cycles, potentially damaging the device or circuit. Always verify polarity alignment in schematic implementation.
What does the "HE3/54" suffix indicate in P4KE120AHE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/54" specifies packaging in 13-inch paper tape and reel with 5500 units per reel. This distinguishes it from commercial-grade "E3" variants and confirms suitability for automotive production. The HE3 qualification includes extended temperature cycling, high-temperature reverse bias testing, and mechanical shock validation - all documented in Vishay's certification reports for P4KE120AHE3/54.
How does P4KE120AHE3/54 perform under elevated ambient temperatures?
P4KE120AHE3/54 derates linearly above 25 °C ambient: its peak pulse power drops to 50% at 125 °C and reaches zero at 175 °C junction temperature. Derating follows Fig. 2 in the datasheet, with thermal resistance RθJA = 100 °C/W (lead length 10 mm). For reliable operation at 105 °C ambient, ensure PCB copper area and lead length support adequate heat dissipation - validated in Vishay's thermal characterization for P4KE120AHE3/54.
Can P4KE120AHE3/54 replace P4KE120A-E3/54 in existing designs?
Yes, P4KE120AHE3/54 is a direct functional and mechanical replacement for P4KE120A-E3/54, sharing identical DO-41 package, pinout, and electrical specs - with the added benefit of AEC-Q101 qualification. The HE3 variant meets stricter automotive reliability requirements (e.g., HTSL, TCT) while maintaining backward compatibility in soldering profiles, thermal performance, and surge ratings. No layout or schematic changes are required when upgrading to P4KE120AHE3/54.
P4KE120AHE3/54 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- 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)
P4KE120AHE3/54 FAQ
1.How can I place an order for P4KE120AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE120AHE3/54 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 P4KE120AHE3/54 reliable?
The price and inventory of P4KE120AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE120AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE120AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE120AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE120AHE3/54?
P4KE120AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE120AHE3/54 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 P4KE120AHE3/54?
For technical support, including P4KE120AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE120AHE3/54 requirements.
6.How does Aetrix verify that P4KE120AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE120AHE3/54 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 P4KE120AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE120AHE3/54?
All P4KE120AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE120AHE3/54, 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 P4KE120AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE120AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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