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Vishay General Semiconductor - Diodes Division P4KE20AHE3/53
- Part No.:
- P4KE20AHE3/53
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE20AHE3/53.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,357
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Product details
Overview
P4KE20AHE3/53 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 20 V breakdown voltage (VBR min/max: 19.0–21.0 V), 17.1 V stand-off voltage (VWM), 27.7 V maximum clamping voltage at 14.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE20AHE3/53 datasheet, P4KE20AHE3/53 pinout, P4KE20AHE3/53 application, or P4KE20AHE3/53 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical data, thermal resistance (RθJL = 66 °C/W), and real-world clamping performance under standardized surge conditions.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 19.0–21.0 V breakdown range. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting MOSFET gates and microcontroller I/O pins against ESD and inductive switching spikes.
Rated for 400 W peak pulse power (10/1000 μs), it sustains 14.4 A IPPM while clamping to ≤27.7 V - delivering predictable overvoltage limiting without latch-up. The device is AEC-Q101 qualified and rated for TJ = –55 °C to +175 °C operation, supporting under-hood automotive environments and industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.0 V / 21.0 V - defines precise avalanche initiation threshold for reliable transient detection |
| VWM | 17.1 V - maximum continuous reverse operating voltage before leakage rises above 1 μA |
| VC @ IPPM | 27.7 V - clamping voltage at 14.4 A peak pulse ensures downstream ICs stay below absolute max ratings |
| PPPM | 400 W - peak surge energy handling capability per 10/1000 μs waveform, validated per REA standard |
| IPPM | 14.4 A - maximum non-repetitive surge current the device safely diverts without degradation |
| TJ max | +175 °C - extended junction temperature rating supports high-ambient automotive and industrial use |
| RθJL | 66 °C/W - low thermal resistance from junction to lead enables effective heat dissipation in PCB-mounted applications |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events up to 3.5 V @ 25 A |
| Cathode | Avalanche clamping terminal | Marked end; reverse-biased during normal operation; initiates controlled breakdown above VBR to shunt transients |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable VBR tolerance across temperature and life cycle |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control units and ADAS sensor interfaces |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external heatsinking |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and automotive material compliance standards |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp negative-going transients and absorb positive surges via avalanche conduction. Use Value: Maintains signal integrity by limiting voltage excursions to ≤27.7 V during 14.4 A surges, preventing damage to 3.3 V/5 V sensor interface ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff voltage (17.1 V) allows normal 24 V DC operation while clamping transients >21 V within nanoseconds. Use Value: Enables robust field wiring without additional filtering; eliminates need for series impedance in many 24 V industrial input designs. |
| Power Supply Input Protection | Consumer Device USB Port Protection |
Use Scenario: Secondary-side surge suppression on 12–24 V DC power rails feeding microcontrollers and communication ICs. IC Role / Device Role / Timing Role: Parallel-connected TVS that activates only during overvoltage events, remaining invisible to steady-state operation. Use Value: Provides fail-safe protection against accidental AC mains coupling or DC-DC converter fault conditions without affecting efficiency or regulation. |
Use Scenario: ESD and surge protection on VBUS and D+/D− lines of USB 2.0 ports in set-top boxes and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp (typical CJ < 100 pF at 0 V) minimizes signal distortion on high-speed data lines. Use Value: Passes IEC 61000-4-2 ±15 kV contact discharge testing while preserving USB signal rise/fall times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | DO-214AA package; 200 W PPPM; lower IPPM (10.1 A); same VBR range (19.0–21.0 V) | Suitable for space-constrained PCBs but requires derating for 400 W surge events | Select SMBJ20A only when board area is critical and surge energy is limited to ≤200 W |
| 1.5KE20A | Same DO-41 package; identical VBR, VWM, VC; 1.5 kW PPPM (10/1000 μs); higher IPPM (65.2 A) | Used where higher-energy transients (e.g., lightning-induced surges) exceed P4KE20AHE3/53 capability | Choose 1.5KE20A when system-level surge testing requires >400 W clamping capacity |
Compared with SMBJ20A and 1.5KE20A, P4KE20AHE3/53 offers optimal balance of AEC-Q101 qualification, 400 W surge handling, and DO-41 through-hole compatibility - making it preferred for cost-sensitive, high-reliability automotive and industrial replacements where footprint and qualification align.
Availability
P4KE20AHE3/53 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power supply input protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE20AHE3/53 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, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE series was engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage tolerance of P4KE20AHE3/53?
The P4KE20AHE3/53 has a specified breakdown voltage range of 19.0 V to 21.0 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 20 V rating. This tight VBR window ensures consistent clamping behavior across production lots and temperature ranges, critical for predictable circuit protection design using the P4KE20AHE3/53.
Is P4KE20AHE3/53 suitable for bidirectional transient suppression?
No, P4KE20AHE3/53 is a unidirectional TVS diode - it clamps only in reverse bias and conducts forward current like a standard diode. For bidirectional protection, Vishay offers the P4KE20CA variant. Using P4KE20AHE3/53 in AC-coupled or truly bidirectional signal paths risks forward conduction failure or inadequate clamping during positive transients.
What does the "HE3/53" suffix indicate in P4KE20AHE3/53?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/53" specifies packaging in 53 mm tape-and-reel format (5500 pcs/reel). This distinguishes P4KE20AHE3/53 from commercial-grade E3 variants and confirms its suitability for automotive production use.
How does P4KE20AHE3/53 perform under elevated ambient temperatures?
P4KE20AHE3/53 derates linearly above 25 °C ambient: its peak pulse power drops to ~200 W at 80 °C and ~100 W at 125 °C per Figure 2 in the datasheet. Engineers must apply this derating when designing for under-hood or enclosed industrial environments to ensure P4KE20AHE3/53 maintains clamping integrity during sustained high-temperature operation.
Can P4KE20AHE3/53 replace older P4KE20A-E3 parts in existing designs?
Yes, P4KE20AHE3/53 is a direct functional and mechanical replacement for P4KE20A-E3, sharing identical electrical specs, DO-41 package dimensions, and soldering profiles. The HE3 version adds AEC-Q101 qualification and enhanced whisker resistance - making P4KE20AHE3/53 backward-compatible while upgrading reliability for automotive deployments.
P4KE20AHE3/53 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 14.4A
- 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)
P4KE20AHE3/53 FAQ
1.How can I place an order for P4KE20AHE3/53 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE20AHE3/53 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 P4KE20AHE3/53 reliable?
The price and inventory of P4KE20AHE3/53 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE20AHE3/53 is usually 5 days.
3.What payment methods are accepted for P4KE20AHE3/53?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE20AHE3/53 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE20AHE3/53?
P4KE20AHE3/53 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE20AHE3/53 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 P4KE20AHE3/53?
For technical support, including P4KE20AHE3/53 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE20AHE3/53 requirements.
6.How does Aetrix verify that P4KE20AHE3/53 is sourced from the original manufacturer or authorized distributors?
All P4KE20AHE3/53 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 P4KE20AHE3/53 meets industry standards.
7.What is the process for return or replacement of P4KE20AHE3/53?
All P4KE20AHE3/53 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE20AHE3/53, 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 P4KE20AHE3/53 part is unused and in its original packaging.
Return procedure for P4KE20AHE3/53:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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