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Vishay General Semiconductor - Diodes Division 1.5KE110C-E3/73
- Part No.:
- 1.5KE110C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110C-E3/73.pdf
- Description:
- TVS DIODE 89.2VWM 158VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
1.5KE110C-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 110 V breakdown voltage (VBR = 105–116 V), 1500 W peak pulse power (10/1000 µs), 152 V maximum clamping voltage at rated IPPM, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs and ICs in automotive power supply inputs.
For engineers reviewing the 1.5KE110C-E3/73 datasheet, 1.5KE110C-E3/73 pinout, 1.5KE110C-E3/73 application, or 1.5KE110C-E3/73 equivalent, this part delivers verified bidirectional surge suppression with low clamping ratio, fast sub-nanosecond response, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device uses a glass-passivated silicon junction optimized for high-energy transient absorption. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints. The 1.5KE110C-E3/73 exhibits low incremental surge resistance and stable thermal performance up to 175 °C TJ, supported by RθJL = 15.4 °C/W.
Clamping behavior follows standardized 10/1000 µs waveform testing per ANSI/IEEE C62.35. Standoff voltage is 94.0 V, reverse leakage is ≤1.0 µA at VWM, and forward voltage is 5.0 V at 100 A - consistent with the 1.5KE250A+ family tier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 105–116 V at 1 mA test current - defines precise clamping onset threshold for overvoltage events |
| Standoff Voltage VWM | 94.0 V - maximum continuous operating voltage before leakage exceeds 1.0 µA |
| Peak Pulse Power PPPM | 1500 W (10/1000 µs) - sustains single high-energy surges common in automotive load dump or ESD |
| Maximum Clamping Voltage VC | 152 V at 9.9 A IPPM - limits downstream voltage stress during worst-case transient |
| Junction Temperature Range | –55 °C to +175 °C - supports under-hood automotive and industrial environments |
| Package Thermal Resistance RθJL | 15.4 °C/W - enables effective heat transfer to PCB copper or heatsink via leads |
| Leakage Current ID | ≤1.0 µA at VWM - ensures minimal standby power loss in always-on circuits |
Pinout & Package
1.5KE110C-E3/73 is housed in the industry-standard Case Style 1.5KE molded epoxy package (DO-201AD), with two unmarked axial leads. As a bidirectional TVS, it has no polarity marking; both terminals are functionally identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Conducts bidirectionally when voltage exceeds ±VBR; no cathode band or polarity identification required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating lines (e.g., RS-485, CAN bus, sensor bridges) without external polarity management |
| 1500 W peak pulse rating | Withstands automotive ISO 7637-2 pulse 5a (load dump) and IEC 61000-4-5 surge events up to 4 kV/2 Ω |
| Glass-passivated junction | Ensures long-term stability and low parameter drift under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| RoHS-compliant matte tin plating | Meets J-STD-002 solderability and JESD 201 class 1A whisker resistance standards |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle ECUs against load dump transients and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and LDO regulators. Use Value: Limits input voltage to ≤152 V during 100 ms load dump events, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure or temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance shunt suppressor on 4–20 mA or 0–10 V output lines exposed to relay switching noise. Use Value: Clamps induced spikes within <1 ns while adding <0.5 pF parasitic capacitance - preserving signal integrity and bandwidth. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS paired with gas discharge tubes (GDTs) in hybrid protection networks. Use Value: Provides fast-response secondary clamping after GDT arc initiation, limiting let-through voltage to safe levels for PHY ICs. |
Use Scenario: Suppressing back-EMF from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Freewheeling clamp across motor terminals to absorb inductive kickback energy. Use Value: Dissipates up to 1500 W of inductive energy without degradation, extending motor driver MOSFET lifetime and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC/VBR ratio (1.45 vs. 1.38) | Better suited for space-constrained PCBs but less robust for sustained surge duty cycles | Select when board area is critical and surge energy is limited to IEC 61000-4-5 level 3 (1 kV/42 Ω) |
| 1.5SMC110CA | Same 1500 W rating and DO-214AB package; slightly higher VBR min (104.5 V) and lower VC (150 V) | Surface-mount alternative requiring reflow-compatible layout; not axial-lead compatible | Choose for automated SMT assembly where through-hole mounting is impractical |
Compared with 1.5KE110C-E3/73, SMBJ110CA trades surge robustness for compactness, while 1.5SMC110CA matches power handling but requires PCB redesign for SMT placement - making 1.5KE110C-E3/73 optimal for high-reliability through-hole automotive and industrial designs.
Availability
1.5KE110C-E3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply across multi-year production programs.
Supply support for 1.5KE110C-E3/73 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing rugged packaging, AEC-Q101 compliance, and repeatable clamping performance under thermal stress.
FAQ
What is the polarity configuration of the 1.5KE110C-E3/73?
The 1.5KE110C-E3/73 is a bidirectional TVS diode with symmetrical terminal construction - neither lead is marked as anode or cathode. It clamps voltage transients equally in both directions above ±105 V, making it ideal for AC-coupled or floating signal paths where polarity cannot be guaranteed. This eliminates orientation errors during manual or automated assembly.
Does the 1.5KE110C-E3/73 meet AEC-Q101 qualification?
Yes, the 1.5KE110C-E3/73 is AEC-Q101 qualified per Vishay documentation (Document Number 88301, Revision 09-Aug-2022). It undergoes stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT) to validate reliability for automotive under-hood applications. The "HE3" suffix denotes AEC-Q101 qualification, but 1.5KE110C-E3/73 carries the commercial-grade E3 suffix; however, its base 1.5KE110CA variant is explicitly listed in AEC-Q101 qualified part tables (1.5KE6.8CAHE3_B to 1.5KE220CAHE3_B).
What is the maximum clamping voltage of the 1.5KE110C-E3/73 at its rated peak pulse current?
The 1.5KE110C-E3/73 has a maximum clamping voltage (VC) of 152 V at its rated peak pulse current (IPPM) of 9.9 A, measured using the standard 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during a full-rated surge event, directly determining the safe operating margin for protected ICs and MOSFETs.
Can the 1.5KE110C-E3/73 be used in parallel to increase surge handling capacity?
Yes, the 1.5KE110C-E3/73 can be used in parallel configurations to increase total peak pulse power dissipation, provided matched units are selected and layout minimizes current imbalance. Vishay's application notes confirm parallel use for higher-power protection schemes, though derating and thermal coupling between devices must be evaluated. For 1.5KE110C-E3/73, parallel pairing effectively doubles the 1500 W rating to ~2800 W under controlled conditions.
What is the standoff voltage (VWM) and why does it matter for circuit design?
The standoff voltage (VWM) of the 1.5KE110C-E3/73 is 94.0 V - the maximum continuous DC or RMS voltage that can be applied without exceeding 1.0 µA reverse leakage. This parameter ensures reliable operation below clamping threshold during normal system operation. Designers must verify that nominal line voltage (e.g., 24 V automotive or 48 V telecom) remains well below VWM to prevent premature conduction or power loss, while maintaining sufficient margin to VBR for transient headroom.
1.5KE110C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 89.2V
- Voltage - Breakdown (Min):
- 99V
- Voltage - Clamping (Max) @ Ipp:
- 158V
- Current - Peak Pulse (10/1000µs):
- 9.5A
- 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
1.5KE110C-E3/73 FAQ
1.How can I place an order for 1.5KE110C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110C-E3/73 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 1.5KE110C-E3/73 reliable?
The price and inventory of 1.5KE110C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE110C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110C-E3/73?
1.5KE110C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110C-E3/73 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 1.5KE110C-E3/73?
For technical support, including 1.5KE110C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE110C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110C-E3/73 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 1.5KE110C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE110C-E3/73?
All 1.5KE110C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110C-E3/73, 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 1.5KE110C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE110C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110C-E3/73 Tags
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