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Vishay General Semiconductor - Diodes Division 1.5KE110CHE3/73
- Part No.:
- 1.5KE110CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110CHE3/73.pdf
- Description:
- TVS DIODE 89.2VWM 158VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,745
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Product details
Overview
1.5KE110CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 105 V to 116 V breakdown voltage range at 1 mA test current, 94.0 V maximum stand-off voltage, 152 V clamping voltage at 9.9 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, automotive body control modules, and telecom power supplies.
For engineers reviewing the 1.5KE110CHE3/73 datasheet, 1.5KE110CHE3/73 pinout, 1.5KE110CHE3/73 application, or 1.5KE110CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under surge conditions, thermal derating behavior, and AEC-Q101-qualified alternatives for automotive-grade design-in.
Technical Context
This TVS diode operates as a silicon avalanche clamp, responding within <1 ns to transient overvoltages induced by inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the unidirectional polarity enables cathode-grounded placement on DC supply lines.
Rated for 175 °C maximum junction temperature and 75 °C/W junction-to-ambient thermal resistance, it supports reliable operation in high-temperature environments when mounted on PCBs with adequate copper pour. The 1.5KE case style provides mechanical robustness and UL 94 V-0 flammability compliance via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 105 V min. to 116 V max. at 1 mA - defines minimum voltage at which clamping initiates reliably |
| Stand-off Voltage (VWM) | 94.0 V max. - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| Clamping Voltage (VC) | 152 V at 9.9 A IPPM - peak voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power (PPPM) | 1500 W - energy-handling capability for single 1 ms transients per JEDEC standard |
| Peak Pulse Current (IPPM) | 9.9 A - maximum non-repetitive surge current supported without degradation |
| Junction Temperature Range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial ambient conditions |
| Thermal Resistance (RθJA) | 75 °C/W - determines required PCB copper area for thermal management at 6.5 W steady-state dissipation |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (Case Style 1.5KE), axial-leaded, RoHS-compliant matte tin-plated leads. Dimensions: 5.3 mm diameter × 9.5 mm length (0.210" × 0.375"), UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; forms cathode-to-rail clamping configuration |
| Cathode | High-side connection point | Connected to protected line (e.g., 48 V rail); color band denotes this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) in industrial systems |
| Response time < 1 ns | Clamps before sensitive ICs (e.g., microcontrollers, gate drivers) experience overstress |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including BCM, lighting control, and infotainment power inputs |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and data line protectors in certified equipment |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC input stage against back-EMF spikes from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND, clamping transients before they reach DC-DC converter ICs. Use Value: Limits voltage excursion to ≤152 V during 9.9 A surges, preventing latch-up or permanent damage to buck controller ICs. |
Use Scenario: Guarding LIN bus power rail against load dump and jump-start transients in door module ECUs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply line, coordinated with secondary polymer PTC fuse. Use Value: Withstands 1500 W pulses without degradation, maintaining system uptime during repeated vehicle battery disconnection events. |
| Telecom Power Supplies | Consumer Appliance Control Boards |
Use Scenario: Input-stage surge suppression on AC/DC adapter outputs feeding PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS on +48 V output rail, absorbing lightning-induced surges coupled through Ethernet magnetics. Use Value: Clamps to 152 V within 1 ns, preserving integrity of downstream DC-DC regulators and Ethernet PHY ICs. |
Use Scenario: Overvoltage guard on microcontroller VDD line in washing machine main control board exposed to pump motor noise. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA at 94 V) unidirectional suppressor placed adjacent to MCU power pin. Use Value: Prevents brownout resets and flash corruption during 10/1000 µs transients up to 9.9 A, validated per IEC 61000-4-4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52 | Lower PPPM (600 W), smaller SMB package, 110 V VBR range matches closely | Used where board space is constrained and surge energy is ≤600 W (e.g., USB-C PD input) | Select when footprint reduction outweighs need for 1500 W surge margin |
| 1.5KE110AHE3_B | Same 1.5KE package and electrical specs; HE3_B denotes AEC-Q101 qualification with revision B | Identical function but with enhanced automotive traceability and whisker testing (JESD 201 Class 2) | Choose for new automotive designs requiring full AEC-Q101 documentation and lot-level qualification |
Compared with 1.5KE110CHE3/73, SMBJ110A-E3/52 trades surge capacity for compactness, while 1.5KE110AHE3_B offers identical protection with stricter automotive process controls - enabling direct substitution only when qualification level aligns with OEM requirements.
Availability
1.5KE110CHE3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE110CHE3/73 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability and application-specific validation.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance of the 1.5KE110CHE3/73?
The 1.5KE110CHE3/73 has a specified breakdown voltage range of 105 V minimum to 116 V maximum at 1 mA test current. This ±5.2% tolerance ensures consistent clamping initiation across production lots and operating temperatures, critical for predictable protection in 48 V and 60 V nominal systems where overvoltage margins are tightly defined.
Is the 1.5KE110CHE3/73 RoHS compliant and lead-free?
Yes, the 1.5KE110CHE3/73 carries the "E3" suffix, indicating full RoHS compliance and lead-free matte tin plating per J-STD-002 and JESD 22-B102. It also meets JESD 201 Class 1A whisker testing, making it suitable for commercial and industrial applications with stringent environmental compliance requirements.
Does the 1.5KE110CHE3/73 meet AEC-Q101 for automotive use?
The 1.5KE110CHE3/73 is not AEC-Q101 qualified; only variants with "HE3" followed by a revision letter (e.g., 1.5KE110AHE3_B) carry that qualification. The "CHE3/73" suffix indicates RoHS-compliant commercial grade with UL 497B recognition - appropriate for non-safety-critical automotive subsystems but not for engine bay or ADAS applications requiring AEC-Q101.
What is the maximum clamping voltage of the 1.5KE110CHE3/73 under surge conditions?
The 1.5KE110CHE3/73 exhibits a maximum clamping voltage (VC) of 152 V at 9.9 A peak pulse current with a 10/1000 µs waveform. This value represents the worst-case voltage imposed on the protected circuit during standardized surge testing and is used to verify margin against downstream IC absolute maximum ratings.
Can the 1.5KE110CHE3/73 be used in bidirectional configurations?
No - the 1.5KE110CHE3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional versions require the "CA" suffix (e.g., 1.5KE110CA). Using this part in reverse-biased AC applications would result in forward conduction and failure; always confirm polarity alignment with circuit topology before layout.
1.5KE110CHE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE110CHE3/73 FAQ
1.How can I place an order for 1.5KE110CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110CHE3/73 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 1.5KE110CHE3/73 reliable?
The price and inventory of 1.5KE110CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE110CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110CHE3/73?
1.5KE110CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110CHE3/73 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 1.5KE110CHE3/73?
For technical support, including 1.5KE110CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE110CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110CHE3/73 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 1.5KE110CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE110CHE3/73?
All 1.5KE110CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110CHE3/73, 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 1.5KE110CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE110CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110CHE3/73 Tags
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