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Vishay General Semiconductor - Diodes Division P4KE11-E3/73
- Part No.:
- P4KE11-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE11-E3/73.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,955
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Product details
Overview
P4KE11-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features a 10.5 V clamping voltage at 25.6 A peak pulse current, 9.40 V stand-off voltage, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines of automotive sensor modules and industrial I/O interfaces.
For engineers reviewing the P4KE11-E3/73 datasheet, P4KE11-E3/73 pinout, P4KE11-E3/73 application, or P4KE11-E3/73 equivalent, key selection criteria include verified clamping performance under 25.6 A transient, unidirectional polarity with cathode band marking, DO-41 mechanical compatibility, AEC-Q101 qualification status, and thermal resistance of 66 °C/W junction-to-lead.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its 10.5–11.6 V breakdown range (tested at 1.0 mA), it avalanches to limit transient energy. Its glass-passivated junction ensures stable leakage (<5.0 μA at 9.40 V) and fast response time (<1.0 ns), critical for safeguarding MOSFET gates and microcontroller I/O pins against inductive switching spikes.
The device sustains 400 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, with maximum junction temperature of +175 °C and thermal resistance RθJL = 66 °C/W - enabling reliable operation in convection-cooled automotive engine control units and industrial PLC backplanes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Clamping Voltage VC | 15.6 V at 25.6 A IPPM - defines maximum voltage seen by protected IC during worst-case surge |
| Stand-off Voltage VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 μA |
| Breakdown Voltage VBR | 10.5–11.6 V at 1.0 mA IT - ensures reliable avalanche initiation within specified tolerance band |
| Peak Pulse Power PPPM | 400 W (10/1000 μs) - supports single-event surge immunity per ISO 7637-2 Pulse 1/2a/5a |
| Peak Pulse Current IPPM | 25.6 A - quantifies maximum transient current safely diverted without degradation |
| Junction Temperature Range | −55 °C to +175 °C - enables deployment in under-hood automotive and high-temp industrial environments |
| Thermal Resistance RθJL | 66 °C/W - determines junction temperature rise under 1.5 W steady-state dissipation at TL = 75 °C |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body end. Leads conform to J-STD-002 and JESD 22-B102 solderability standards; RoHS-compliant per JEDEC Level 1A whisker test (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-impedance surge return | Connected to ground or low-side reference; carries full IPPM during clamping event |
| Cathode | Reverse-biased avalanche node / transient sensing input | Connected to protected line (e.g., 12 V rail or CAN_H); initiates clamping when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<5.0 μA) over lifetime and temperature |
| 400 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 5a requirements for 12 V automotive systems without external heat sinking |
| AEC-Q101 qualified (E3/73 variant) | Validated for automotive-grade reliability including HTOL, temperature cycling, and HAST |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump edge rates >100 V/μs) |
| UL 94 V-0 compliant molding compound | Prevents flame propagation in enclosed enclosures per industrial safety standards |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 12 V supply rail against load dump transients up to 35 V for 400 ms. IC Role / Device Role / Timing Role: Shunt TVS placed between battery rail and local LDO input. Use Value: Clamps peak voltage to ≤15.6 V during 25.6 A surge, preventing LDO overvoltage failure and ensuring MCU uptime. |
Use Scenario: Guarding 24 V dry-contact inputs against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Primary front-end clamp ahead of optocoupler input stage. Use Value: Limits transient energy before isolation barrier, eliminating false triggering and optocoupler degradation. |
| Consumer Appliance Motor Drive Board | Telecom Base Station Power Interface |
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation on 24 V logic supply. IC Role / Device Role / Timing Role: Unidirectional TVS across motor driver H-bridge supply pins. Use Value: Absorbs 400 W pulses without latch-up, maintaining gate driver functionality during repeated switching. |
Use Scenario: Safeguarding -48 V telecom power feed against lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: First-stage clamp on DC input before DC/DC converter primary. Use Value: Withstands 25.6 A peak current while holding voltage below converter overvoltage threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | DO-214AA package; 10 V VWM; 17.0 V VC at 23.5 A; 600 W PPPM | Higher power rating but larger footprint; lower thermal resistance (RθJA = 40 °C/W) | Select SMBJ10A when board space allows larger SMC/SMB package and higher surge margin is required. |
| 1.5KE11A | DO-201AD package; same VWM/VBR/VC specs; 1500 W PPPM; 50 A IPPM | Higher surge capacity but longer lead length increases inductance; not AEC-Q101 qualified | Choose 1.5KE11A only for non-automotive industrial use where 1500 W rating justifies larger size and layout impact. |
Compared with P4KE11-E3/73, SMBJ10A offers superior thermal performance in surface-mount layouts, while 1.5KE11A delivers higher surge headroom in through-hole designs - neither is pin-compatible, and both require PCB redesign; P4KE11-E3/73 remains optimal for cost-sensitive, AEC-Q101-compliant DO-41 deployments.
Availability
P4KE11-E3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, and consumer appliance motor drive circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P4KE11-E3/73 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, AEC-Q101 compliance, and automotive-grade manufacturing.
The P4KE series targets cost-effective, high-volume transient suppression in harsh environments - engineered for robustness in engine compartments, factory floors, and outdoor telecom infrastructure.
FAQ
What is the clamping voltage of P4KE11-E3/73 and how is it measured?
The P4KE11-E3/73 has a maximum clamping voltage (VC) of 15.6 V, measured at a peak pulse current (IPPM) of 25.6 A using a 10/1000 μs waveform per Fig. 1 in the Vishay datasheet. This value represents the highest voltage the device allows across its terminals during a standardized surge event, directly protecting downstream components from overvoltage stress.
Is P4KE11-E3/73 suitable for automotive applications?
Yes, P4KE11-E3/73 is AEC-Q101 qualified and rated for operation from −55 °C to +175 °C, making it suitable for under-hood automotive applications such as engine control units and body control modules. Its DO-41 package, glass-passivated junction, and 400 W surge capability meet ISO 7637-2 transient immunity requirements.
What does the "E3/73" suffix indicate in P4KE11-E3/73?
The "E3" denotes RoHS-compliant, commercial-grade construction meeting JESD 201 Class 1A whisker resistance; "/73" specifies packaging in 73 mm tape-and-reel format (5500 pcs/reel). This distinguishes it from variants like "HE3" (AEC-Q101 qualified) or "/54" (13-inch reel).
How does P4KE11-E3/73 differ from bidirectional TVS diodes like P4KE11CA?
P4KE11-E3/73 is unidirectional with cathode marking and forward voltage drop (~3.5 V), intended for DC rail protection where polarity is fixed. In contrast, P4KE11CA is bidirectional, symmetric in both directions, and lacks polarity marking - used in AC-coupled or differential signal lines like RS-485 or CAN bus where voltage swings occur in both polarities.
What is the thermal resistance of P4KE11-E3/73 and why does it matter?
P4KE11-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W. This parameter determines how much the junction temperature rises above lead temperature under power dissipation - critical for predicting reliability during repetitive surges or elevated ambient conditions in sealed enclosures.
P4KE11-E3/73 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 24.7A
- 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)
P4KE11-E3/73 FAQ
1.How can I place an order for P4KE11-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE11-E3/73 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 P4KE11-E3/73 reliable?
The price and inventory of P4KE11-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE11-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE11-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE11-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE11-E3/73?
P4KE11-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE11-E3/73 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 P4KE11-E3/73?
For technical support, including P4KE11-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE11-E3/73 requirements.
6.How does Aetrix verify that P4KE11-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE11-E3/73 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 P4KE11-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE11-E3/73?
All P4KE11-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE11-E3/73, 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 P4KE11-E3/73 part is unused and in its original packaging.
Return procedure for P4KE11-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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