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Vishay General Semiconductor - Diodes Division 1.5KE110HE3/54
- Part No.:
- 1.5KE110HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110HE3/54.pdf
- Description:
- TVS DIODE 89.2VWM 158VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,148
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Product details
Overview
1.5KE110HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 105 V to 116 V breakdown voltage (VBR), 94.0 V maximum standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), 9.9 A peak pulse current (IPPM), and clamps to ≤152 V at rated surge. It is used in automotive power supply rails, industrial I/O interfaces, and DC-DC converter input protection.
For engineers reviewing the 1.5KE110HE3/54 datasheet, 1.5KE110HE3/54 pinout, 1.5KE110HE3/54 application, or 1.5KE110HE3/54 equivalent, this device delivers verified AEC-Q101 qualification, glass-passivated junction reliability, 175 °C max junction temperature, and RoHS-compliant matte tin-plated leads - critical for high-reliability transient suppression in harsh environments.
Technical Context
This TVS diode operates as a unidirectional clamping device with a single P-N junction structure, activated when reverse voltage exceeds its specified VBR range (105–116 V). Its response time is <1 ns, enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients before sensitive downstream circuitry is damaged.
It is rated for 1500 W peak pulse power under the standardized 10/1000 µs waveform, with thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient). The device supports 200 A non-repetitive forward surge current (IFSM) and exhibits low incremental surge resistance for stable clamping performance across surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 94.0 V - maximum continuous reverse working voltage compatible with 90 V nominal DC bus systems |
| IPPM | 9.9 A - peak surge current capability under 10/1000 µs waveform, defining clamping energy handling |
| VC (max) | 152 V - maximum clamped voltage at IPPM, directly limiting stress on protected ICs or MOSFETs |
| PPPM | 1500 W - peak pulse power rating confirming suitability for severe transient environments (e.g., ISO 7637-2 Pulse 5a) |
| TJ (max) | +175 °C - enables operation in under-hood automotive or high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
1.5KE110HE3/54 uses the industry-standard Case Style 1.5KE axial-leaded package (DO-201AD), with cathode indicated by a color band. Leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102; package meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line; conducts during overvoltage to shunt surge energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives |
| 1500 W peak pulse power (10/1000 µs) | Supports high-energy transients without degradation, meeting ISO 7637-2 and IEC 61000-4-5 Level 4 requirements |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics use, including engine control units and body control modules |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs |
| 175 °C maximum junction temperature | Enables placement near heat sources (e.g., power inductors, regulators) without derating concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and chassis ground, responding within <1 ns to limit voltage to ≤152 V. Use Value: Prevents permanent damage to microcontrollers, CAN transceivers, and power management ICs during vehicle-level surge events. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and analog sensor outputs in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across signal and return lines to clamp induced common-mode transients up to 1 kV. Use Value: Maintains signal integrity and prevents ADC saturation or op-amp latch-up during EFT bursts or nearby motor switching. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shielding buck/boost converter inputs from back-EMF spikes generated by upstream relay or contactor switching. IC Role / Device Role / Timing Role: Primary-stage TVS absorbing repetitive 1500 W pulses without parameter drift, mounted adjacent to input filter capacitor. Use Value: Extends lifetime of input electrolytic capacitors and MOSFETs by limiting voltage stress during frequent inductive turn-off events. |
Use Scenario: Front-end protection for Ethernet PHYs and PoE injectors subjected to lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: High-power unidirectional TVS integrated into hybrid protection circuit with GDT and MOV for staged energy absorption. Use Value: Enables compliance with GR-1089-CORE and IEC 61000-4-5 (10/700 µs) telecom surge immunity standards. |
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 | Lower peak pulse power (600 W), smaller SMB package (surface-mount), lower IPPM (32.4 A), same VBR range (105–116 V) | Better suited for space-constrained PCBs but unsuitable for high-energy automotive load dump where 1500 W is required | Select 1.5KE110HE3/54 when >1 kW surge handling and axial-leaded mechanical robustness are mandatory |
| 1.5KE110A-E3/54 | Same electrical specs and package, but commercial-grade (non-AEC-Q101 qualified); identical VBR, VC, PPPM, and thermal ratings | Approved for industrial/commercial use only; not validated for automotive temperature cycling or humidity testing | Choose 1.5KE110HE3/54 for automotive OEM or Tier-1 programs requiring AEC-Q101 documentation and traceability |
Compared with SMBJ110A and 1.5KE110A-E3/54, the 1.5KE110HE3/54 uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and axial-leaded mechanical stability - making it the only option among the three for high-reliability automotive power rail protection where both energy handling and qualification are non-negotiable.
Availability
1.5KE110HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom line card designs requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5KE110HE3/54 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and ruggedized packaging.
The 1.5KE family was engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - prioritizing robustness, repeatable clamping, and qualification for mission-critical environments.
FAQ
What is the clamping voltage of the 1.5KE110HE3/54 at its rated peak pulse current?
The 1.5KE110HE3/54 has a maximum clamping voltage (VC) of 152 V when subjected to its rated 9.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that protected downstream components experience no more than 152 V during worst-case surge events, provided layout minimizes parasitic inductance.
Is the 1.5KE110HE3/54 suitable for bidirectional transient suppression?
No, the 1.5KE110HE3/54 is a unidirectional TVS diode, as confirmed by its part number suffix "A" and datasheet specifications. For bidirectional protection, Vishay offers the 1.5KE110CA variant. Using the 1.5KE110HE3/54 in bidirectional applications would result in forward conduction during negative transients, potentially causing failure or inadequate protection.
Does the HE3 suffix on 1.5KE110HE3/54 indicate RoHS compliance and AEC-Q101 qualification?
Yes - the HE3 suffix explicitly denotes both RoHS compliance (per EU Directive 2011/65/EU) and full AEC-Q101 qualification, as documented in Vishay's 88301 datasheet revision 09-Aug-2022. This distinguishes it from the E3 suffix (RoHS only, commercial grade) and confirms validation for automotive under-hood applications including temperature cycling, HTRB, and ESD testing.
What is the standoff voltage rating for the 1.5KE110HE3/54, and how does it relate to system design?
The 1.5KE110HE3/54 has a maximum standoff voltage (VWM) of 94.0 V, meaning it remains non-conductive up to this DC or RMS voltage level. In system design, VWM must exceed the maximum normal operating voltage of the protected line - for example, it is appropriate for 72–80 V DC bus systems but not for 100 V nominal supplies where margin is insufficient.
How does the thermal resistance of the 1.5KE110HE3/54 impact its power dissipation capability?
The 1.5KE110HE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, enabling efficient heat transfer to PCB copper or heatsinking leads. At ambient temperatures up to 75 °C, this allows sustained 6.5 W power dissipation (PD) without exceeding the 175 °C maximum junction temperature - critical for reliability in enclosed industrial enclosures.
1.5KE110HE3/54 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):
- 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
1.5KE110HE3/54 FAQ
1.How can I place an order for 1.5KE110HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110HE3/54 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 1.5KE110HE3/54 reliable?
The price and inventory of 1.5KE110HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE110HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110HE3/54?
1.5KE110HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110HE3/54 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 1.5KE110HE3/54?
For technical support, including 1.5KE110HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110HE3/54 requirements.
6.How does Aetrix verify that 1.5KE110HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110HE3/54 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 1.5KE110HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE110HE3/54?
All 1.5KE110HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110HE3/54, 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 1.5KE110HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE110HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110HE3/54 Tags
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