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Vishay General Semiconductor - Diodes Division 1.5KE100-E3/54
- Part No.:
- 1.5KE100-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100-E3/54.pdf
- Description:
- TVS DIODE 81VWM 144VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,365
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Product details
Overview
1.5KE100-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 95.0 V to 105 V breakdown voltage (VBR), 85.5 V maximum standoff voltage (VWM), 137 V clamping voltage at 10.9 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It is used in automotive power supply inputs and industrial sensor interfaces where fast transient suppression is required.
For engineers reviewing the 1.5KE100-E3/54 datasheet, 1.5KE100-E3/54 pinout, 1.5KE100-E3/54 application, or 1.5KE100-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC-standardized package dimensions, clamping performance under standardized surge waveforms, thermal derating behavior, and RoHS-compliant commercial-grade sourcing details - all specific to the 1.5KE100-E3/54 variant.
Technical Context
This device implements an avalanche-based silicon junction structure with glass passivation, enabling sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and supports 200 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine waveform.
The 1.5KE100-E3/54 operates within a defined thermal envelope: typical junction-to-lead thermal resistance (RθJL) is 15.4 °C/W, and junction-to-ambient (RθJA) is 75 °C/W. Power dissipation is rated at 6.5 W on infinite heatsink at TL = 75 °C, with linear derating above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95.0 V / 105 V at 1.0 mA test current - defines minimum voltage at which avalanche conduction begins reliably |
| VWM | 85.5 V maximum - ensures no conduction during normal operation up to rated system voltage |
| VC @ IPPM | 137 V at 10.9 A - clamping voltage seen by protected circuit during full 1500 W transient event |
| PPPM | 1500 W (10/1000 µs waveform) - peak surge energy handling capacity without failure |
| IFSM | 200 A (8.3 ms half-sine) - maximum non-repetitive forward surge capability for unidirectional operation |
| TJ range | –55 °C to +175 °C - enables use in under-hood automotive and high-temp industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 molded epoxy body |
Pinout & Package
1.5KE100-E3/54 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package: 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The cathode is marked by a color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line; conducts only during transient overvoltage events |
| Cathode | Current exit point during reverse-biased clamping | Marked with color band; tied to ground or lower-potential rail to shunt surge energy |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repetitive surges |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) in industrial power supplies |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage - critical for MOSFET gate protection |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance; suitable for commercial-grade automated assembly |
| UL recognition (QVGQ2) | Validated per UL 497B for telecom and industrial surge protector 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 transients. IC Role / Device Role / Timing Role: Primary clamping element placed between input rail and chassis ground to limit voltage excursion to ≤137 V. Use Value: Prevents damage to downstream LDOs and microcontrollers by absorbing up to 1500 W for 1 ms without degradation. |
Use Scenario: 4–20 mA analog sensor outputs routed through long cables in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and local ground to suppress induced lightning surges (IEC 61000-4-5). Use Value: Clamps 10.9 A transients to 137 V within <1 ns, preserving signal integrity and preventing op-amp latch-up. |
| Telecom DC Power Feeds | Consumer Power Adapter Outputs |
Use Scenario: -48 V DC distribution in central office equipment subject to accidental short-circuit recovery spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 85.5 V) placed across output terminals to clamp positive-going transients. Use Value: Maintains system uptime by limiting voltage overshoot to safe levels while surviving repeated 1500 W pulses at 0.01% duty cycle. |
Use Scenario: Secondary-side 12 V output of wall adapters powering USB peripherals and smart home hubs. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA at VWM) TVS added as last-line defense before connector interface. Use Value: Adds fail-safe protection without loading regulated output; RoHS/E3 compliance ensures compatibility with consumer manufacturing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | DO-214AA package; 100 V VBR min (95–105 V); 1000 W PPPM; lower IPPM (12.3 A) | Surface-mount alternative with smaller footprint; lower surge rating limits use in high-energy industrial environments | Select SMBJ100A when board space is constrained and peak surge energy remains ≤1000 W |
| 1.5KE100AHE3_B | Identical electrical specs; AEC-Q101 qualified; HE3 suffix indicates JESD 201 Class 2 whisker resistance | Qualified for automotive under-hood applications; requires qualification documentation for OEM programs | Choose 1.5KE100AHE3_B when automotive PPAP compliance or extended temperature validation is mandatory |
Compared with 1.55KE100-E3/54, SMBJ100A trades surge capacity for SMT compatibility, while 1.5KE100AHE3_B adds automotive qualification without altering clamping or thermal behavior - enabling direct substitution only where qualification status aligns with program requirements.
Availability
1.5KE100-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with traceable RoHS-compliant sourcing and consistent DO-201AD packaging.
Supply support for 1.5KE100-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, and protection devices with emphasis on reliability, ruggedness, and application-specific validation.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5KE100-E3/54 under full-rated surge conditions?
The 1.5KE100-E3/54 exhibits a maximum clamping voltage (VC) of 137 V when subjected to its rated peak pulse current of 10.9 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper bound voltage imposed on the protected circuit during worst-case transient events. The 1.5KE100-E3/54 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE100-E3/54 suitable for bidirectional signal line protection?
No, the 1.5KE100-E3/54 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5KE100CA variant. Using the 1.5KE100-E3/54 on AC or symmetrical signal lines would result in forward conduction during negative half-cycles, potentially causing malfunction or damage. Always verify polarity alignment before integrating the 1.5KE100-E3/54 into any design.
What is the meaning of the "E3/54" suffix in 1.5KE100-E3/54?
The "E3" denotes RoHS-compliant, commercial-grade construction meeting JESD 201 Class 1A whisker resistance, while "/54" specifies the preferred packaging code: 13-inch paper tape and reel containing 1400 units. This ordering format ensures consistent reel orientation, lead finish, and traceability for automated assembly. The 1.5KE100-E3/54 is not AEC-Q101 qualified - that designation requires the "HE3" suffix instead.
How does thermal derating affect the 1.5KE100-E3/54's power handling above 25 °C ambient?
The 1.5KE100-E3/54's power dissipation (PD) derates linearly above 25 °C ambient temperature, dropping to zero at 175 °C junction temperature. At 75 °C ambient, it sustains 6.5 W only when mounted on an infinite heatsink at TL = 75 °C. In free-air conditions, its usable continuous power is limited by RθJA = 75 °C/W. Engineers must apply derating curves from Figure 2 of the 88301 datasheet when designing for elevated ambient environments - especially critical in enclosed automotive or industrial enclosures where the 1.5KE100-E3/54 operates.
Can the 1.5KE100-E3/54 replace older 1N6295A parts in legacy designs?
Yes, the 1.5KE100-E3/54 is the direct commercial-grade replacement for 1N6295A, sharing identical electrical specifications (VBR, VWM, VC, PPPM, IFSM), mechanical outline (DO-201AD), and marking convention. Both are listed in the same Vishay datasheet (88301) as functionally equivalent. The 1.5KE100-E3/54 adds RoHS compliance and updated packaging - making it fully backward-compatible for redesigns or new builds requiring modern environmental compliance without circuit modification.
1.5KE100-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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.4A
- 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
1.5KE100-E3/54 FAQ
1.How can I place an order for 1.5KE100-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100-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 1.5KE100-E3/54 reliable?
The price and inventory of 1.5KE100-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 1.5KE100-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE100-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100-E3/54?
1.5KE100-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100-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 1.5KE100-E3/54?
For technical support, including 1.5KE100-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100-E3/54 requirements.
6.How does Aetrix verify that 1.5KE100-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100-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 1.5KE100-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE100-E3/54?
All 1.5KE100-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100-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 1.5KE100-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE100-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100-E3/54 Tags
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