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Vishay General Semiconductor - Diodes Division 1.5KE110A-E3/54
- Part No.:
- 1.5KE110A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110A-E3/54.pdf
- Description:
- TVS DIODE 94VWM 152VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,894
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Product details
Overview
1.5KE110A-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 105 V to 116 V breakdown voltage (VBR), 94.0 V maximum standoff voltage (VWM), 152 V clamping voltage at 9.9 A peak pulse current, 1500 W peak pulse power rating with 10/1000 µs waveform, and operates across –55 °C to +175 °C junction temperature range - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the 1.5KE110A-E3/54 datasheet, 1.5KE110A-E3/54 pinout, 1.5KE110A-E3/54 application, or 1.5KE110A-E3/54 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, RoHS-compliant packaging details, and direct alternative part comparisons for ESD and lightning transient suppression design validation.
Technical Context
The 1.5KE110A-E3/54 employs a glass passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking, and it complies with JEDEC DO-201AD case style (1.5KE package) with matte tin-plated leads solderable per J-STD-002.
It delivers 1500 W peak pulse power handling per 10/1000 µs waveform at 0.01% duty cycle, with thermal resistance of 75 °C/W (junction-to-ambient) and 15.4 °C/W (junction-to-lead). Clamping occurs at 152 V when subjected to 9.9 A peak pulse current, enabling robust protection of downstream MOSFETs and ICs against inductive switching transients and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 94.0 V - maximum continuous reverse working voltage compatible with 100 V nominal DC bus systems |
| VC @ IPPM | 152 V - clamping voltage limits stress on protected circuitry during 9.9 A transient events |
| PPPM | 1500 W - peak pulse power capacity supports high-energy transients per IEEE C62.41 Category B/C surge profiles |
| IPPM | 9.9 A - peak pulse current capability defined at 10/1000 µs waveform for standardized surge testing |
| TJ Range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments without derating |
| Package | DO-201AD (1.5KE) - industry-standard axial leaded package with UL 94 V-0 molded epoxy body |
Pinout & Package
DO-201AD (1.5KE) package: axial-leaded, molded epoxy body with cathode band marking on unidirectional variants; lead finish is matte tin, compliant with JESD 22-B102 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line; enables bidirectional surge shunting only when paired with complementary device |
| Cathode | Current exit point during reverse breakdown | Marked with color band; connected to higher-potential rail to clamp transients toward ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly filtered front-end designs |
| Clamping time < 1 ns | Responds before sensitive CMOS gate oxides experience destructive voltage overshoot |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance for high-reliability automated assembly |
| UL 94 V-0 molding compound | Prevents flame propagation in fault-overstress conditions per safety-critical end equipment standards |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator surge transients. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, conducting only during overvoltage events. Use Value: Limits transient voltage to ≤152 V, preventing damage to 36 V-rated DC-DC controllers and CAN transceivers. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS tied between signal line and ground, absorbing ±8 kV HBM ESD pulses. Use Value: Maintains signal integrity below 100 mV offset shift during 30 A 8/20 µs surge due to low dynamic impedance. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered switch ports against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V DC feed, triggered only above 94 V to avoid interference with normal operation. Use Value: Withstands 1500 W surges without degradation, meeting Telcordia GR-1089-CORE Level 3 requirements. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback before reaching MCU GPIOs or driver ICs. Use Value: Reduces radiated emissions by limiting dV/dt to <50 V/ns, easing EMC compliance 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 |
|---|---|---|---|
| SMBJ110A | DO-214AA package; 110 V VWM, 177 V VC @ 8.5 A; 600 W PPPM | Lower power rating suits space-constrained PCBs but requires parallel staging for 1500 W needs | Select when board area is limited and surge energy is ≤600 W; not drop-in for 1.5KE110A-E3/54's mechanical or thermal profile |
| 1.5KE110CA | Bidirectional variant; same VBR range (105–116 V), symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal may occur | Choose only when protecting bidirectional interfaces (e.g., RS-485, CAN FD); unidirectional 1.5KE110A-E3/54 is unsuitable for such use cases |
Compared with SMBJ110A, the 1.5KE110A-E3/54 offers 2.5× higher peak pulse power and superior thermal dissipation via axial leads, while 1.5KE110CA provides polarity-agnostic clamping at identical voltage thresholds - making the original part optimal for high-energy unidirectional DC rail protection where lead-mounting and heat sinking are feasible.
Availability
1.5KE110A-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, telecom power supplies, and consumer appliance motor control systems requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE110A-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 efficiency, and automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting applications demanding AEC-Q101 readiness, UL recognition, and consistent clamping performance across extended temperature ranges - directly supporting automotive, industrial, and infrastructure equipment design goals.
FAQ
What is the clamping voltage of the 1.5KE110A-E3/54 under standard surge test conditions?
The 1.5KE110A-E3/54 exhibits a maximum clamping voltage (VC) of 152 V when subjected to its rated peak pulse current of 9.9 A using the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events. The 1.5KE110A-E3/54 maintains this clamping performance across its full operating temperature range, with minimal drift due to its low temperature coefficient of 0.107 %/°C.
Is the 1.5KE110A-E3/54 RoHS compliant and qualified for automotive use?
Yes, the 1.5KE110A-E3/54 carries the E3 suffix, confirming RoHS compliance per EU Directive 2011/65/EU and JESD 201 Class 1A whisker resistance. While the base 1.5KE110A-E3/54 is commercial grade, Vishay offers the AEC-Q101-qualified variant as 1.5KE110AHE3_B - which shares identical electrical specs but adds stress testing for automotive under-hood deployment. The 1.5KE110A-E3/54 itself is widely used in non-safety-critical automotive subsystems where qualification is not mandated.
How does the 1.5KE110A-E3/54 compare to the 1.5KE110CA in terms of circuit integration?
The 1.5KE110A-E3/54 is unidirectional and requires correct polarity orientation - cathode tied to the higher-potential rail - whereas the 1.5KE110CA is bidirectional and functions identically in either direction. This makes the 1.5KE110CA suitable for AC signal paths or floating buses like RS-485, but the 1.5KE110A-E3/54 is preferred for DC power rail protection due to its lower leakage and tighter VBR tolerance. Both share identical VBR, VWM, and PPPM, but cannot be interchanged without verifying polarity constraints in the target circuit.
What is the thermal resistance profile of the 1.5KE110A-E3/54 and how does it affect layout?
The 1.5KE110A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15.4 °C/W. This means effective heat removal relies heavily on copper pour connected to its axial leads - especially the cathode - rather than surface-mount thermal pads. Layouts should allocate ≥10 mm² of 2-oz copper per lead, with short, wide traces to minimize thermal impedance. Derating begins above 25 °C ambient, dropping to ~50% power capability at 100 °C case temperature per Vishay's Fig. 2 curve.
Can the 1.5KE110A-E3/54 be used in parallel to increase surge current handling?
Parallel operation of 1.5KE110A-E3/54 devices is not recommended without individual current-sharing resistors due to VBR tolerance (±5%) causing uneven current division during transients. Even with matched units, minor parametric spread can result in one device absorbing >70% of the surge, risking premature failure. For higher current capability, Vishay specifies the 3.0KE series (e.g., 3.0KE110A) - offering 3000 W PPPM in the same DO-201AD footprint - rather than paralleling multiple 1.5KE110A-E3/54 units.
1.5KE110A-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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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
1.5KE110A-E3/54 FAQ
1.How can I place an order for 1.5KE110A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110A-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 1.5KE110A-E3/54 reliable?
The price and inventory of 1.5KE110A-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 1.5KE110A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE110A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110A-E3/54?
1.5KE110A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110A-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 1.5KE110A-E3/54?
For technical support, including 1.5KE110A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE110A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110A-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 1.5KE110A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE110A-E3/54?
All 1.5KE110A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110A-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 1.5KE110A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE110A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110A-E3/54 Tags
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Diodes Incorporated
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