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Vishay General Semiconductor - Diodes Division 1.5KE11-E3/54
- Part No.:
- 1.5KE11-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE11-E3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,612
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Product details
Overview
1.5KE11-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 10.5 V to 11.6 V breakdown voltage (VBR) at 1.0 mA test current, 9.40 V maximum standoff voltage (VWM), 15.6 V clamping voltage (VC) at 96.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive body control modules and industrial sensor interfaces.
For engineers reviewing the 1.5KE11-E3/54 datasheet, 1.5KE11-E3/54 pinout, 1.5KE11-E3/54 application, or 1.5KE11-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package dimensions, polarity marking convention, thermal derating behavior, and direct alternatives for ESD/lightning surge protection in 12 V and 24 V systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (9.40 V), enters avalanche breakdown between VBR (10.5–11.6 V) and VC (15.6 V), and clamps transient energy into ground during surges up to 96.2 A. Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and fast response (<1 ns).
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling operation from –55 °C to +175 °C junction temperature. The device supports repetitive 10/1000 µs pulses at 0.01% duty cycle and complies with JESD22-B106 (275 °C solder dip, 10 s) and JESD201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1.0 mA - defines reliable avalanche initiation threshold for consistent clamping onset |
| VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 µA |
| VC @ IPPM | 15.6 V at 96.2 A - clamping voltage limiting protected circuit stress during 10/1000 µs transients |
| PPPM | 1500 W - peak pulse power handling capability per standard 10/1000 µs waveform |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine wave) |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded, UL 94 V-0 compliant housing |
Pinout & Package
1.5KE11-E3/54 uses a two-terminal axial-leaded package (JEDEC Case Style 1.5KE / DO-201AD) with cathode indicated by a color band. No internal pin numbering applies - terminals are functionally designated anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to system ground or low-impedance return path to shunt surge energy |
| Anode (unmarked end) | Protected line connection | Connected to input rail or signal line requiring clamping to VC during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<5 µA), and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Handles lightning-induced surges (IEC 61000-4-5 Level 4) on 12 V/24 V supply lines without failure |
| Sub-nanosecond response time | Clamps transients within 1 ns - faster than MOVs or polymer-based protectors, preserving IC integrity |
| AEC-Q101 qualification option | HE3 suffix variants meet automotive-grade stress testing (not applicable to -E3/54, which is commercial grade) |
| RoHS-compliant matte tin plating | Meets J-STD-002/JESD22-B102 solderability standards and JESD201 Class 1A whisker resistance |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and LIN bus transceivers from load dump and alternator ripple in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and ground, clamping transients above 9.4 V to ≤15.6 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V logic devices exposed to ISO 7637-2 Pulse 5a (load dump) events. | Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact inputs, coordinated with series current-limiting resistor. Use Value: Limits transient voltage to <16 V, ensuring compatibility with 24 V-rated optocoupler input stages per IEC 61000-4-4. |
| Consumer Power Adapter Output | Telecom Line Interface |
Use Scenario: Secondary-side surge suppression on 5 V/9 V USB-C PD adapter outputs subject to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Fast-acting shunt element downstream of DC-DC converter, sized for 1500 W pulse handling. Use Value: Maintains output regulation during CDE (cable discharge event) per USB-IF compliance, avoiding brownout or reset of connected devices. | Use Scenario: Protection of RS-485 transceiver pins in base station backhaul equipment exposed to induced lightning on outdoor cabling. IC Role / Device Role / Timing Role: First-stage clamping device on differential data lines, preceding GDT or polymer PPTC secondary protection. Use Value: Clamps common-mode surges to <16 V while preserving signal integrity up to 10 Mbps due to low capacitance (<100 pF typical). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | DO-214AA (SMB) package, 11.1 V VBR, 18.2 V VC at 65.1 A, 600 W PPPM | Lower power rating and higher clamping voltage; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ11A when board area is limited and peak surge currents remain below 65 A. |
| 1.5SMC11A | DO-214AB (SMC) package, 11.1 V VBR, 18.2 V VC at 82.4 A, 1500 W PPPM, same VWM | Surface-mount alternative with identical power rating and clamping performance but different thermal path and layout footprint | Choose 1.5SMC11A for automated SMT assembly and improved thermal coupling to copper pour. |
Compared with 1.5KE11-E3/54, SMBJ11A offers smaller size but reduced surge capacity, while 1.5SMC11A matches its 1500 W rating in an SMT package - enabling design flexibility between through-hole robustness and surface-mount scalability without compromising clamping performance.
Availability
1.5KE11-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and consumer power supply designs requiring stable component supply, RoHS-compliant sourcing, and traceable lot documentation.
Supply support for 1.5KE11-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and ruggedized performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure applications where robustness and repeatable clamping behavior are critical.
FAQ
What is the breakdown voltage range of the 1.5KE11-E3/54?
The 1.5KE11-E3/54 has a guaranteed breakdown voltage (VBR) range of 10.5 V to 11.6 V at a test current of 1.0 mA, measured per JEDEC standard. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes. The 1.5KE11-E3/54 maintains this specification under operating junction temperatures from –55 °C to +175 °C, supporting use in engine bay and industrial control cabinet deployments.
Is the 1.5KE11-E3/54 suitable for automotive applications?
The 1.5KE11-E3/54 is a commercial-grade part and is not AEC-Q101 qualified. For automotive use, Vishay offers the 1.5KE11AHE3_B variant, which carries AEC-Q101 qualification and identical electrical specs. Engineers must select the HE3 suffix version if deploying the 1.5KE11-E3/54's functional equivalent in safety-critical or under-hood automotive systems.
What is the clamping voltage of the 1.5KE11-E3/54 at its rated peak pulse current?
The 1.5KE11-E3/54 clamps to a maximum of 15.6 V at its rated peak pulse current (IPPM) of 96.2 A, using the standard 10/1000 µs double-exponential waveform. This value represents worst-case voltage seen by downstream circuitry during surge events and is validated per JEDEC test conditions. Designers use this figure to verify that protected ICs remain within absolute maximum ratings during transient exposure.
Does the 1.5KE11-E3/54 have bidirectional capability?
No, the 1.5KE11-E3/54 is a unidirectional TVS diode. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE11CA). The unidirectional configuration requires correct polarity installation - cathode (banded end) must connect to ground - to ensure proper clamping behavior. Reversing the 1.5KE11-E3/54 will result in forward conduction and potential failure under normal bias.
What package type does the 1.5KE11-E3/54 use, and what are its key mechanical properties?
The 1.5KE11-E3/54 uses the JEDEC DO-201AD axial package (Case Style 1.5KE), featuring a molded epoxy body rated UL 94 V-0, matte tin-plated leads compliant with J-STD-002, and a lead diameter of 0.038–0.042 inches (0.96–1.07 mm). Its 0.375 inch (9.5 mm) lead length supports manual or wave soldering per JESD22-B106 (275 °C, 10 s max).
1.5KE11-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- 1.5KE
1.5KE11-E3/54 FAQ
1.How can I place an order for 1.5KE11-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE11-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 1.5KE11-E3/54 reliable?
The price and inventory of 1.5KE11-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 1.5KE11-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE11-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE11-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE11-E3/54?
1.5KE11-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE11-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 1.5KE11-E3/54?
For technical support, including 1.5KE11-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE11-E3/54 requirements.
6.How does Aetrix verify that 1.5KE11-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE11-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 1.5KE11-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE11-E3/54?
All 1.5KE11-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE11-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 1.5KE11-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE11-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE11-E3/54 Tags
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