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Vishay General Semiconductor - Diodes Division 1.5KE16-E3/54
- Part No.:
- 1.5KE16-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16-E3/54.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,819
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Product details
Overview
1.5KE16-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 1500 W peak pulse power rating (10/1000 µs), 15.2–16.8 V breakdown voltage (VBR) at 1.0 mA, 13.6 V maximum working voltage (VWM), 22.5 V clamping voltage (VC) at 66.7 A peak pulse current, and operates across –55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE16-E3/54 datasheet, 1.5KE16-E3/54 pinout, 1.5KE16-E3/54 application, or 1.5KE16-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package dimensions, polarity marking convention (cathode band), clamping performance under lightning surge conditions, and direct alternatives with documented VBR, VC, and thermal resistance differences.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) to transient overvoltages. Its clamping action begins at 13.6 V (VWM) and limits peak voltage to 22.5 V at 66.7 A (10/1000 µs waveform), delivering 1500 W surge capability with low incremental surge resistance and 0.086 %/°C VBR temperature coefficient.
It supports repetitive surge duty cycles up to 0.01 %, withstands 200 A non-repetitive forward surge (8.3 ms half-sine), and exhibits 3.5 V forward voltage at 100 A. Thermal design is enabled by RθJA = 75 °C/W and RθJL = 15.4 °C/W, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction initiates reliably |
| VWM | 13.6 V maximum - ensures stable operation below clamping onset, compatible with 12 V nominal systems |
| VC @ IPPM | 22.5 V at 66.7 A - limits downstream component stress during 10/1000 µs transients such as ISO 7637-2 Pulse 1/2a |
| PPPM | 1500 W - sustains high-energy surges without failure, validated per R.E.A. 10/1000 µs waveform standard |
| IFSM | 200 A (8.3 ms half-sine) - handles inrush and fault currents in power supply input stages |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - informs heatsinking requirements when operating near 6.5 W steady-state dissipation limit |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with glass-passivated junction, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, matte tin-plated leads. Cathode indicated by color band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., +12 V rail); conducts only during overvoltage events |
| Cathode | Current exit point during clamping; marked with band | Connected to ground or lower-potential reference; establishes unidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive applications |
| Sub-nanosecond response time | Clamps transients before sensitive ICs (e.g., microcontrollers, CAN transceivers) experience damaging overvoltage |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients like ESD or inductive switching spikes |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, suitable for lead-free reflow and high-reliability assembly |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and alternator-induced transients. IC Role / Device Role / Timing Role: Primary shunt clamp placed between battery rail and ground, activated within <1 ns of overvoltage onset. Use Value: Limits voltage to ≤22.5 V during 1500 W surges, preventing damage to voltage regulators and microcontrollers. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital sensor interfaces (I²C, SPI) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-line, cathode-to-ground, suppressing positive-going transients on signal conductors. Use Value: Clamps 8/20 µs ESD pulses to <25 V while maintaining <1 µA leakage at 13.6 V, preserving signal integrity. |
| Telecom DC Power Feeds | Consumer Device USB Port Protection |
Use Scenario: Securing -48 V telecom power distribution boards against lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Front-end TVS on DC input stage, coordinated with upstream fuses and downstream DC/DC converters. Use Value: Absorbs 10/1000 µs surges up to 66.7 A without degradation, supporting multi-kV isolation requirements. |
Use Scenario: Adding robustness to USB VBUS lines in portable electronics exposed to hot-plug and charger-induced transients. IC Role / Device Role / Timing Role: Unidirectional suppressor placed between VBUS and chassis ground, triggered above 13.6 V. Use Value: Prevents latch-up in USB controllers by limiting VBUS to 22.5 V during 1 A/100 ns transients per USB-IF compliance tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Lower PPPM (600 W), smaller SMB package (RθJA = 110 °C/W), same VBR range (15.2–16.8 V) | Preferred for space-constrained PCBs where 1500 W rating is not required; less effective for ISO 7637-2 Pulse 5a | Select SMBJ16A only when board area is critical and surge energy is limited to ≤600 W. |
| 1.5SMC16A | Same 1500 W rating and 1.5KE package, but higher VC (23.2 V at 65.2 A) and wider VBR tolerance (14.4–17.6 V) | Acceptable where 0.7 V higher clamping voltage is tolerable; slightly lower surge current handling (65.2 A vs. 66.7 A) | Choose 1.5SMC16A if sourcing flexibility is prioritized and 23.2 V clamping meets system margin. |
Compared with 1.5KE16-E3/54, SMBJ16A trades surge capacity for footprint reduction, while 1.5SMC16A maintains power rating but sacrifices clamping precision and thermal performance - making 1.5KE16-E3/54 optimal for high-energy, thermally demanding protection points.
Availability
1.5KE16-E3/54 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor signal conditioning, telecom DC distribution, and consumer USB power rail protection requiring stable component supply across extended temperature ranges and high-reliability surge immunity.
Supply support for 1.5KE16-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 handling, and automotive qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge capability and AEC-Q101 readiness are essential.
FAQ
What is the breakdown voltage tolerance of the 1.5KE16-E3/54?
The 1.5KE16-E3/54 has a specified breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1.0 mA test current, representing ±5.6 % tolerance around the nominal 16 V rating. This tight tolerance ensures consistent clamping onset across production lots and supports precise overvoltage margining in safety-critical designs.
Is the 1.5KE16-E3/54 RoHS compliant and lead-free assembly compatible?
Yes, the 1.5KE16-E3/54 carries the E3 suffix, indicating full RoHS compliance and qualification for lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 1A whisker testing - making it suitable for modern high-reliability assembly processes.
How does the 1.5KE16-E3/54 perform under high ambient temperatures?
The 1.5KE16-E3/54 maintains full 1500 W surge capability up to 25 °C ambient; above that, derating follows the curve in Figure 2 of Vishay document 88301, with 50 % power retention at 100 °C and zero-rated surge capability at 175 °C junction temperature. Its RθJA of 75 °C/W guides heatsink selection for sustained high-temperature operation.
Can the 1.5KE16-E3/54 be used in bidirectional configurations?
No - the 1.5KE16-E3/54 is a unidirectional TVS diode, identified by its "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., 1.5KE16CA) and lack polarity marking. Using 1.5KE16-E3/54 in AC or dual-polarity circuits would result in forward conduction during negative half-cycles and potential failure.
What is the clamping voltage of the 1.5KE16-E3/54 at its rated peak pulse current?
The 1.5KE16-E3/54 clamps to a maximum of 22.5 V at its rated peak pulse current (IPPM) of 66.7 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream component voltage stress analysis.
1.5KE16-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):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 63.8A
- 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
1.5KE16-E3/54 FAQ
1.How can I place an order for 1.5KE16-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16-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 1.5KE16-E3/54 reliable?
The price and inventory of 1.5KE16-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 1.5KE16-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE16-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16-E3/54?
1.5KE16-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16-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 1.5KE16-E3/54?
For technical support, including 1.5KE16-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16-E3/54 requirements.
6.How does Aetrix verify that 1.5KE16-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16-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 1.5KE16-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE16-E3/54?
All 1.5KE16-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16-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 1.5KE16-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE16-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16-E3/54 Tags
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