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Vishay General Semiconductor - Diodes Division 1.5KE16A-E3/54
- Part No.:
- 1.5KE16A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16A-E3/54.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,796
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Product details
Overview
1.5KE16A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 15.2 V minimum breakdown voltage (VBR), 13.6 V maximum standoff voltage (VWM), 22.5 V clamping voltage at 66.7 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range. It is used in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE16A-E3/54 datasheet, 1.5KE16A-E3/54 pinout, 1.5KE16A-E3/54 application, or 1.5KE16A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC-standardized package dimensions, clamping performance under standardized surge waveforms, thermal resistance data, and validated alternative parts for ESD and lightning transient suppression design.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on positive transients only, with a color band marking the cathode terminal. The device complies with JEDEC standard test conditions for peak pulse power (10/1000 µs waveform) and derates linearly above 25 °C ambient per Fig. 2.
It delivers 22.5 V clamping voltage at 66.7 A IPPM, ensuring robust protection for 12 V nominal systems where rail voltage must remain below 24 V during surge events. Thermal resistance is specified as RθJA = 75 °C/W (junction-to-ambient) and RθJL = 15.4 °C/W (junction-to-lead), supporting reliable operation under pulsed stress without heatsinking when lead length is 9.5 mm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V - Ensures reliable conduction onset above normal 12 V rail operating range while avoiding false triggering. |
| VWM | 13.6 V - Maximum continuous reverse working voltage; defines safe DC operating margin before leakage increases. |
| VC @ IPPM | 22.5 V - Clamped voltage at 66.7 A peak pulse; guarantees downstream ICs see ≤22.5 V during 10/1000 µs surge. |
| PPPM | 1500 W - Peak pulse power handling capability per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 compliance. |
| IPPM | 66.7 A - Peak pulse current corresponding to VC; determines minimum trace width and PCB layout clearance. |
| TJ max. | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| RθJL | 15.4 °C/W - Junction-to-lead thermal resistance; informs thermal design when mounted on copper pour or chassis-connected leads. |
Pinout & Package
Package: DO-201AD (JEDEC Case Style 1.5KE), axial-leaded molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Dimensions: 5.3 mm diameter × 9.5 mm length, lead spacing 9.5 mm, lead diameter 1.07 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or return path; forms cathode-referenced clamp configuration for positive transients. |
| Cathode (banded end) | Protected line input | Connected to 12 V rail or signal line; conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and low leakage (<1 µA at VWM) over lifetime and temperature. |
| 1500 W peak pulse power (10/1000 µs) | Supports sustained protection against IEC 61000-4-5 combination wave surges up to 4 kV open-circuit voltage. |
| Clamping voltage ≤22.5 V at 66.7 A | Ensures protected 12 V logic circuits remain within absolute maximum ratings during worst-case transients. |
| Response time <1 ns | Acts before sensitive MOSFET gates or microcontroller I/O pins experience damaging overvoltage stress. |
| AEC-Q101 qualified option available | HE3 suffix variants meet automotive reliability standards for engine control and body electronics applications. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and DC-DC converter input, conducting surge energy to ground within nanoseconds. Use Value: Limits voltage seen by downstream regulators to ≤22.5 V, preventing latch-up or gate oxide rupture in buck controller ICs. | Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS connected across signal and return lines to shunt induced lightning-induced surges on long field wiring. Use Value: Maintains signal integrity by clamping transients before they reach precision op-amps or ADC front-ends, preserving measurement accuracy. |
| Consumer Power Adapter Output Protection | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side 12 V output of wall adapters powering set-top boxes or network routers. IC Role / Device Role / Timing Role: Standoff-rated protector placed after secondary rectifier and bulk capacitor, guarding against inductive kickback from internal DC motors or relays. Use Value: Prevents catastrophic failure of USB port controllers or Ethernet PHYs by limiting transient overshoot to safe levels during hot-plug or fault events. | Use Scenario: -48 V DC feeder lines supplying remote radio units in cellular base stations. IC Role / Device Role / Timing Role: Cathode-connected to -48 V rail, anode to ground; clamps positive-going surges induced by nearby lightning strikes on tower cabling. Use Value: Enables continued operation of power management ASICs by holding rail voltage within ±10 % of nominal during multi-kA surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16A | Same 16 V nominal breakdown, but SMA package (surface-mount); lower PPPM = 400 W; RθJA = 110 °C/W. | Suitable for space-constrained PCBs but requires thermal relief and cannot replace 1.5KE16A-E3/54 in high-energy surge scenarios. | Select when board area is limited and surge threat level is IEC 61000-4-2 ESD only-not for IEC 61000-4-5. |
| ON Semiconductor 1.5SMC16A | Same DO-214AB (SMC) package; identical VBR, VC, and PPPM; RoHS-compliant with JESD22-B102 solderability. | Drop-in replacement in SMC footprint; requires PCB pad redesign but offers same electrical performance and thermal capability. | Choose for new designs needing surface-mount assembly compatibility while retaining 1500 W surge rating. |
Compared with Littelfuse SMAJ16A and ON Semiconductor 1.5SMC16A, the 1.5KE16A-E3/54 provides higher thermal robustness (RθJL = 15.4 °C/W vs. >30 °C/W for SMC/SMA), axial-leaded mechanical stability for high-vibration environments, and proven field reliability in automotive under-hood applications-making it preferred for high-energy, high-reliability deployments.
Availability
1.5KE16A-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor signal line protection, consumer power adapter output protection, and telecom DC feeder line protection requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE16A-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 passive components 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 infrastructure where 1500 W surge immunity and extended temperature operation are mandatory.
FAQ
What is the breakdown voltage range for the 1.5KE16A-E3/54?
The 1.5KE16A-E3/54 has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1.0 mA test current, measured per JEDEC standard. This tight tolerance ensures predictable clamping onset in 12 V systems and avoids premature conduction during normal operation. The 1.5KE16A-E3/54 maintains this specification across its full operating temperature range of –55 °C to +175 °C.
Does the 1.5KE16A-E3/54 have automotive qualification?
The 1.5KE16A-E3/54 itself is commercial-grade; however, the AEC-Q101 qualified version is designated as 1.5KE16AHE3_B (with "HE3" and revision code "B"). That variant meets stress testing requirements for temperature cycling, humidity, and surge endurance per AEC-Q101. The 1.5KE16A-E3/54 shares identical electrical specs and package but lacks formal automotive qualification documentation.
What is the clamping voltage of the 1.5KE16A-E3/54 at rated peak pulse current?
The 1.5KE16A-E3/54 clamps to a maximum of 22.5 V at its rated peak pulse current (IPPM) of 66.7 A, tested with a 10/1000 µs waveform. This value is critical for determining whether downstream components-such as 24 V-tolerant microcontrollers or gate drivers-remain within safe operating limits during surge events. The 1.5KE16A-E3/54 achieves this with low incremental surge resistance and fast junction response.
Can the 1.5KE16A-E3/54 be used in bidirectional configurations?
No-the 1.5KE16A-E3/54 is strictly unidirectional. Bidirectional variants in the same family carry the "CA" suffix (e.g., 1.5KE16CA). Using the 1.5KE16A-E3/54 in reverse-biased applications will result in forward conduction and potential failure. For AC or dual-polarity signal protection, select the 1.5KE16CA-E3/54 or equivalent bidirectional part instead of the 1.5KE16A-E3/54.
What is the thermal resistance of the 1.5KE16A-E3/54 and how does it affect layout?
The 1.5KE16A-E3/54 has a junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and junction-to-ambient (RθJA) of 75 °C/W, measured with 9.5 mm lead length. This means effective heat dissipation requires direct thermal coupling of leads to large copper areas or chassis ground. Layout best practice is to use ≥2 mm wide traces connected to internal ground planes on both leads-especially the cathode-to sustain repetitive surge duty cycles without exceeding +175 °C junction temperature.
1.5KE16A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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
1.5KE16A-E3/54 FAQ
1.How can I place an order for 1.5KE16A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16A-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 1.5KE16A-E3/54 reliable?
The price and inventory of 1.5KE16A-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 1.5KE16A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE16A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16A-E3/54?
1.5KE16A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16A-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 1.5KE16A-E3/54?
For technical support, including 1.5KE16A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE16A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16A-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 1.5KE16A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE16A-E3/54?
All 1.5KE16A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16A-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 1.5KE16A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE16A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16A-E3/54 Tags
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