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Vishay General Semiconductor - Diodes Division 1.5KE15-E3/54
- Part No.:
- 1.5KE15-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15-E3/54.pdf
- Description:
- TVS DIODE 12.1VWM 22VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,917
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Product details
Overview
1.5KE15-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 1500 W peak pulse power (10/1000 µs), and clamps transients to ≤21.2 V at 70.8 A, making it suitable for protecting MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the 1.5KE15-E3/54 datasheet, 1.5KE15-E3/54 pinout, 1.5KE15-E3/54 application, or 1.5KE15-E3/54 equivalent, this device delivers verified transient suppression performance with glass-passivated junction reliability, AEC-Q101 qualification availability (HE3 variant), RoHS-compliant matte tin leads, and UL 94 V-0 molded epoxy packaging - critical for automotive, telecom, and embedded system surge design.
Technical Context
This unidirectional TVS operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown. Its 1.5KE package supports high-energy transient absorption with low incremental surge resistance and sub-nanosecond response time (≤1 ns), enabling effective protection against ESD, lightning-induced surges, and inductive switching spikes.
It exhibits a maximum stand-off voltage of 12.8 V, reverse leakage current ≤1.0 µA at VWM, and thermal resistance of 75 °C/W (junction-to-ambient), requiring careful PCB copper area planning for sustained 6.5 W power dissipation at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise avalanche initiation threshold for reliable clamping onset |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 21.2 V at 70.8 A - clamped voltage during full 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 µs waveform) - peak surge energy handling capacity for lightning and load-dump events |
| TJ max | +175 °C - enables operation in under-hood automotive or high-temperature industrial environments |
| RθJA | 75 °C/W - dictates minimum PCB copper area needed for thermal management at rated power |
| Package | DO-201AD (Case Style 1.5KE) - axial-leaded, through-hole package with 0.375" lead length, UL 94 V-0 compliant |
Pinout & Package
1.5KE15-E3/54 uses the DO-201AD axial package (Case Style 1.5KE), with cathode indicated by a color band on the body. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional clamp configuration; carries forward surge current up to 200 A (8.3 ms half-sine) |
| Cathode | Avalanche breakdown terminal | Marked with color band; connected to protected line; initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance |
| Sub-nanosecond response | Clamps transients before sensitive ICs experience damaging overvoltage (tr ≤ 1 ns) |
| UL 94 V-0 epoxy molding | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
| RoHS-compliant E3 suffix | Meets global environmental compliance with JESD 201 Class 1A whisker resistance |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V DC input rails in PLC power modules from inductive kickback and load dump. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp transients above 12.8 V. Use Value: Limits voltage excursion to ≤21.2 V during 70.8 A surges, preventing damage to upstream regulators and downstream logic. | Use Scenario: Safeguarding CAN/LIN bus transceivers and analog sensor inputs in engine control units. IC Role / Device Role / Timing Role: Primary-level surge suppressor on supply and signal lines, responding within 1 ns. Use Value: Maintains signal integrity during ISO 7637-2 pulse 5a/b events while supporting AEC-Q101-qualified variants. |
| Telecom Line Card Surge Protection | Consumer Device DC Input Stage |
Use Scenario: Front-end protection for PoE-powered equipment exposed to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Standoff-rated TVS on secondary-side DC output, absorbing 1500 W pulses without degradation. Use Value: Enables compliance with GR-1089-CORE telecom surge standards using single-device solution. | Use Scenario: Input-stage protection for USB-C PD adapters and wall chargers against AC line transients. IC Role / Device Role / Timing Role: Clamping diode across bulk capacitor input, triggered only during overvoltage events. Use Value: Prevents catastrophic failure of primary-side controllers and optocouplers during 1.2/50 µs surge testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Smaller SMB package (3.5 mm × 3.5 mm), 600 W PPPM, same VBR range (14.3–15.8 V) | Surface-mount only; lower surge rating limits use to consumer-grade or low-energy industrial designs | Select when board space is constrained and peak surge energy does not exceed 600 W |
| 1.5KE15A | Same 1.5KE package and electrical specs, but E3/54 denotes tape-and-reel packaging (1400 pcs/reel); base 1.5KE15A is bulk or ammo pack | No functional difference; identical clamping behavior and thermal performance | Choose 1.5KE15-E3/54 for automated SMT placement; 1.5KE15A for manual prototyping or low-volume assembly |
Compared with SMBJ15A and 1.5KE15A, the 1.5KE15-E3/54 offers full 1500 W surge capability in a proven through-hole package, enabling robust protection where mechanical stability and high-energy handling are prioritized over footprint size - especially in high-reliability power conversion and automotive subsystems.
Availability
1.5KE15-E3/54 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor modules, telecom line cards, and consumer DC input stages requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE15-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, TVS devices, and power MOSFETs with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance of the 1.5KE15-E3/54?
The 1.5KE15-E3/54 has a specified breakdown voltage range of 14.3 V to 15.8 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 15 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable circuit protection margins in designs using the 1.5KE15-E3/54.
Is the 1.5KE15-E3/54 suitable for automotive applications?
Yes - while the standard 1.5KE15-E3/54 is commercial grade, the HE3 variant (e.g., 1.5KE15AHE3_B) is AEC-Q101 qualified and approved for automotive use. The 1.5KE15-E3/54 shares identical electrical characteristics and package construction, allowing direct qualification path; designers should specify the HE3 suffix for automotive-grade builds requiring certified reliability.
What is the maximum clamping voltage of the 1.5KE15-E3/54 under surge conditions?
The 1.5KE15-E3/54 clamps to a maximum of 21.2 V when subjected to its rated peak pulse current of 70.8 A (10/1000 µs waveform). This value is measured at the device terminals and represents the upper limit of voltage seen by protected circuitry during worst-case transient events, directly defining the safe operating margin for downstream components in systems using the 1.5KE15-E3/54.
Does the 1.5KE15-E3/54 have bidirectional capability?
No - the 1.5KE15-E3/54 is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed. Bidirectional variants exist in the same family (e.g., 1.5KE15CA), but they carry the "CA" suffix and differ in internal construction and marking. Using the 1.5KE15-E3/54 in AC or floating applications would result in unintended forward conduction; always verify polarity alignment before deploying the 1.5KE15-E3/54.
What packaging format does the 1.5KE15-E3/54 use?
The 1.5KE15-E3/54 is supplied in 13-inch diameter paper tape and reel packaging, with a base quantity of 1400 pieces per reel (package code "54"). The "E3" suffix indicates RoHS compliance and JESD 201 Class 1A whisker resistance, while the axial DO-201AD body remains unchanged from standard 1.5KE devices - ensuring compatibility with existing through-hole assembly processes for the 1.5KE15-E3/54.
1.5KE15-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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 68.2A
- 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
1.5KE15-E3/54 FAQ
1.How can I place an order for 1.5KE15-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15-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 1.5KE15-E3/54 reliable?
The price and inventory of 1.5KE15-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 1.5KE15-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE15-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15-E3/54?
1.5KE15-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15-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 1.5KE15-E3/54?
For technical support, including 1.5KE15-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15-E3/54 requirements.
6.How does Aetrix verify that 1.5KE15-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE15-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 1.5KE15-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE15-E3/54?
All 1.5KE15-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15-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 1.5KE15-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE15-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15-E3/54 Tags
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