My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KE20C-E3/54
- Part No.:
- P4KE20C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE20C-E3/54.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,468
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KE20C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 20 V breakdown voltage (VBR min/max = 19.0–21.0 V at 1.0 mA), 17.1 V standoff voltage (VWM), 27.7 V maximum clamping voltage (VC) at 14.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P4KE20C-E3/54 datasheet, P4KE20C-E3/54 pinout, P4KE20C-E3/54 application, or P4KE20C-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility with through-hole PCB assembly, thermal resistance (RθJL = 66 °C/W), AEC-Q101 qualification status, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
The P4KE20C-E3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its bidirectional construction (denoted by "C" suffix). Its response time is sub-nanosecond, enabling effective suppression of ESD and inductive switching spikes before downstream ICs are damaged.
It is rated for 400 W peak pulse power under 10/1000 μs waveform at TA = 25 °C, with derating above 25 °C per Fig. 2; maximum junction temperature is 175 °C, and thermal resistance from junction to lead is 66 °C/W - critical for reliability in high-ambient environments like engine control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.0 V / 21.0 V at 1.0 mA - defines precise avalanche initiation threshold for bidirectional transient clamping |
| VWM | 17.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 27.7 V at 14.4 A - clamped voltage seen by protected circuit during 400 W transient event |
| PPPM | 400 W - peak surge power handling with 10/1000 μs waveform, supporting IEC 61000-4-5 Level 4 immunity |
| TJ max | +175 °C - enables operation in under-hood automotive and industrial motor drive environments |
| RθJL | 66 °C/W - low thermal resistance supports reliable power dissipation without heatsink in moderate-duty cycles |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix), UL 94 V-0 rated, AEC-Q101 qualified (HE3 variant); lead length ≥10 mm for thermal resistance testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal in forward bias; common reference point in bidirectional operation | No polarity marking - symmetrical structure means either lead serves as anode or cathode depending on transient polarity |
| Cathode (unmarked end) | Current exit terminal in forward bias; same physical terminal as anode in bidirectional mode | Not color-banded - unlike unidirectional P4KE20A, P4KE20C has no cathode band, confirming true bidirectional functionality |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable avalanche characteristics over 1000+ surge events without parameter drift or degradation |
| 400 W peak pulse power (10/1000 μs) | Supports protection against severe load dump and ISO 7637-2 Pulse 5a in 12 V automotive systems |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic interfaces |
| Sub-nanosecond response time | Clamps ESD transients (IEC 61000-4-2 ±8 kV contact) before propagation into sensitive analog front-ends |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 12 V sensor supply lines against load dump and alternator ripple in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor VCC and chassis ground to clamp positive/negative transients. Use Value: Withstands 400 W surges up to 175 °C junction temperature, ensuring uninterrupted operation during cold-cranking and cranking-induced voltage dips. |
Use Scenario: Guarding 24 V digital input channels against inductive kickback from solenoid/relay coils in factory automation PLCs. IC Role / Device Role / Timing Role: Primary surge suppressor across input terminals, upstream of optocoupler isolation barrier. Use Value: Clamps to 27.7 V within nanoseconds, preventing false triggering and latch-up in microcontroller GPIOs tied to discrete inputs. |
| Automotive Body Control Module (BCM) | Consumer Appliance Motor Drive Board |
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers from ESD and battery reversal transients. IC Role / Device Role / Timing Role: Bidirectional clamping device on LIN data line and motor power rail to absorb ±15 kV ESD and 100 V/50 ms reverse battery events. Use Value: Symmetrical VBR ensures equal protection for both signal polarities - essential for half-duplex serial buses like LIN. |
Use Scenario: Safeguarding microcontroller I/O pins and gate drivers from back-EMF generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) TVS placed directly at motor connector interface to limit voltage overshoot. Use Value: 27.7 V clamping voltage prevents damage to 3.3 V MCU pins while maintaining fast response without signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | Surface-mount SMB package (vs. DO-41 through-hole); 20 V VBR, 30 V VC @ 13.3 A; 600 W PPPM | Requires PCB redesign for SMT assembly; higher power rating but lower surge current density per unit volume | Select when board space is constrained and automated SMT placement is preferred over manual TH assembly |
| 1.5KE20CA | Same DO-41 package; 20 V VBR, 32.4 V VC @ 12.3 A; 1500 W PPPM; higher clamping voltage and larger junction capacitance | Better for high-energy surges (e.g., lightning-induced), but less suitable for low-voltage logic protection due to elevated VC | Select when system-level surge tests require >1 kW capability and clamping voltage margin allows 32.4 V excursion |
Compared with SMBJ20CA and 1.5KE20CA, the P4KE20C-E3/54 offers optimal balance of through-hole manufacturability, 400 W surge handling, and tight 27.7 V clamping - making it ideal for cost-sensitive, medium-surge automotive and industrial modules where DO-41 footprint is standardized.
Availability
P4KE20C-E3/54 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC input modules, and consumer appliance motor drive boards requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for P4KE20C-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, power efficiency, and automotive qualification.
The P4KE20C-E3/54 belongs to Vishay's TRANSZORB® family of TVS diodes, engineered specifically for robust transient suppression in harsh environments - including under-hood automotive, industrial controls, and power supply input stages.
FAQ
What does the "C" suffix indicate in P4KE20C-E3/54?
The "C" suffix in P4KE20C-E3/54 denotes bidirectional configuration - meaning the device provides symmetrical transient voltage clamping in both polarities, with no cathode band marking. This distinguishes it from unidirectional variants like P4KE20A, which feature a cathode band and only clamp in reverse bias. The P4KE20C-E3/54 is functionally identical to P4KE20CA per Vishay documentation.
Is P4KE20C-E3/54 AEC-Q101 qualified?
The P4KE20C-E3/54 itself carries the commercial-grade E3 suffix and is RoHS-compliant but not AEC-Q101 qualified. However, the HE3 variant (P4KE20C-HE3/54) is explicitly AEC-Q101 qualified per Vishay Document 88365, Revision 16-Sep-2021. Engineers requiring automotive qualification must specify the HE3 version for P4KE20C-E3/54 applications.
What is the maximum clamping voltage of P4KE20C-E3/54 and at what current?
The P4KE20C-E3/54 has a maximum clamping voltage (VC) of 27.7 V at 14.4 A peak pulse current (IPPM), measured under standard 10/1000 μs waveform conditions. This value ensures protected circuits remain below critical overvoltage thresholds - especially important for 24 V industrial sensors and 3.3 V/5 V microcontrollers interfacing with higher-voltage domains.
Can P4KE20C-E3/54 be used in place of P4KE20A?
No - P4KE20C-E3/54 is bidirectional while P4KE20A is unidirectional, with a cathode band and asymmetric conduction. Substituting P4KE20C-E3/54 for P4KE20A in DC-biased circuits may cause unintended forward conduction or failure to clamp correctly. Always verify polarity requirements and consult the schematic before replacement; the P4KE20C-E3/54 is intended only for AC or dual-polarity transient protection.
What is the thermal resistance and how does it affect P4KE20C-E3/54 reliability?
The P4KE20C-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, measured with 10 mm lead length. This low value enables efficient heat transfer from the silicon junction to PCB copper or chassis, allowing sustained operation at +175 °C junction temperature - critical for under-hood automotive use where ambient temperatures exceed 125 °C and surge duty cycles demand thermal stability.
P4KE20C-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 13.7A
- 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)
P4KE20C-E3/54 FAQ
1.How can I place an order for P4KE20C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE20C-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 P4KE20C-E3/54 reliable?
The price and inventory of P4KE20C-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 P4KE20C-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE20C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE20C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE20C-E3/54?
P4KE20C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE20C-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 P4KE20C-E3/54?
For technical support, including P4KE20C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE20C-E3/54 requirements.
6.How does Aetrix verify that P4KE20C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE20C-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 P4KE20C-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE20C-E3/54?
All P4KE20C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE20C-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 P4KE20C-E3/54 part is unused and in its original packaging.
Return procedure for P4KE20C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE20C-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
