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Vishay General Semiconductor - Diodes Division 1.5KE100-E3/73
- Part No.:
- 1.5KE100-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100-E3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,118
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Product details
Overview
1.5KE100-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in 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 range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE100-E3/73 datasheet, 1.5KE100-E3/73 pinout, 1.5KE100-E3/73 application, or 1.5KE100-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package dimensions, polarity marking guidance, thermal resistance data, and direct alternative options for surge protection design validation.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its clamping behavior is characterized by a 137 V maximum VC at IPPM = 10.9 A under 10/1000 µs waveform, with VF = 3.5 V at 100 A forward surge - confirming suitability for high-energy transient suppression without latch-up risk.
The device complies with JEDEC DO-201AD (Case Style 1.5KE), supports 200 A non-repetitive forward surge (IFSM), and exhibits a temperature coefficient of VBR at +0.106 %/°C - enabling stable breakdown voltage tracking across wide ambient ranges in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95.0 V / 105 V - defines minimum voltage at which clamping initiates reliably; ensures protection starts before downstream IC damage thresholds. |
| VWM | 85.5 V - maximum continuous reverse operating voltage; must exceed system nominal DC rail (e.g., 72 V automotive battery). |
| VC @ IPPM | 137 V - clamped voltage seen by protected circuit during 10.9 A transient; determines maximum stress on downstream components. |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; validates capability against ISO 7637-2 Pulse 1/2b/5a transients. |
| IPPM | 10.9 A - peak pulse current corresponding to VC; used to size series impedance and verify PCB trace current capacity. |
| TJ max. | +175 °C - maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial enclosures. |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient; informs derating requirements when mounted on FR-4 without heatsink. |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., GND or return line); conducts during positive transients when cathode is at higher potential. |
| Cathode | Clamping reference node | Marked with color band; connected to protected line (e.g., 12 V rail); initiates avalanche breakdown when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under humidity and thermal cycling per JESD22-A101. |
| 1500 W peak pulse power | Supports compliance with ISO 16750-2 and SAE J1113-11 surge immunity requirements for automotive electronics. |
| Sub-nanosecond response time | Clamps transients before propagation into sensitive analog front-ends or microcontroller I/O pins. |
| AEC-Q101 qualified option available | HE3 suffix variants meet stress test requirements for automotive-grade discrete semiconductors (e.g., 1.5KE100AHE3_B). |
| RoHS-compliant E3 suffix | Meets JESD201 Class 1A whisker resistance; suitable for lead-free reflow and wave soldering up to 275 °C for 10 s. |
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 ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Limits voltage to ≤137 V during 10.9 A transients, preventing gate oxide rupture in downstream MOSFETs and PMICs. | Use Scenario: Safeguarding 4–20 mA current loop transmitters and analog sensor outputs in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and local ground, activated only during positive-going surges. Use Value: Maintains signal integrity below 85.5 V normal operation while clamping lightning-induced spikes within 1 ns. |
| Telecom DC Power Feeds | Consumer Power Adapter Outputs |
Use Scenario: Overvoltage protection on -48 V DC distribution boards in central office equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS on feed line input, absorbing induced surges from nearby AC mains coupling. Use Value: Withstands repetitive 1500 W pulses at 0.01 % duty cycle, ensuring longevity in telecom infrastructure deployments. | Use Scenario: Secondary-side surge suppression on USB-C PD or laptop adapter 20 V outputs. IC Role / Device Role / Timing Role: Final-stage protection before USB-PD controller or battery management IC. Use Value: Clamps fast-rising ESD events to <137 V while maintaining <1 µA leakage at 85.5 V, minimizing standby power loss. |
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 | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VBR range (95–105 V), higher RθJA (110 °C/W). | Better suited for space-constrained PCBs with lower surge energy requirements (e.g., consumer USB ports). | Select SMBJ100A when board area is limited and peak transients are ≤600 W; verify thermal margin due to higher junction temperature rise. |
| 1.5KE100AHE3_B | Identical electrical specs, but AEC-Q101 qualified and HE3 whisker-tested; same DO-201AD package; revision-coded "B" suffix. | Required for automotive OEM designs needing qualification evidence and extended reliability testing. | Choose 1.5KE100AHE3_B for automotive applications where AEC-Q101 compliance is mandatory; otherwise, 1.5KE100-E3/73 suffices for commercial/industrial use. |
Compared with SMBJ100A, 1.5KE100-E3/73 delivers 2.5× higher surge power handling and lower thermal resistance, making it preferable for high-energy industrial or automotive front-end protection; versus 1.5KE100AHE3_B, it lacks AEC-Q101 certification but shares identical clamping performance and footprint - ideal for cost-sensitive non-automotive designs.
Availability
1.5KE100-E3/73 is available at Aetrix Electronics and suitable for automotive power inputs, industrial sensor interfaces, telecom DC feeds, and consumer power adapter outputs requiring stable component supply across production lifecycles.
Supply support for 1.5KE100-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 diodes, rectifiers, MOSFETs, and passive components with emphasis on reliability and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-power transient suppression in harsh environments, targeting ISO 7637-2 and IEC 61000-4-5 compliance in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance for 1.5KE100-E3/73?
The 1.5KE100-E3/73 has a specified breakdown voltage range of 95.0 V to 105 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 100 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for protecting voltage-sensitive loads like microcontrollers and analog sensors. The 1.5KE100-E3/73 maintains this specification per JEDEC standard test conditions at TA = 25 °C.
Is 1.5KE100-E3/73 RoHS compliant and lead-free solder compatible?
Yes, the 1.5KE100-E3/73 carries the E3 suffix, indicating full RoHS compliance and qualification for lead-free soldering processes. It meets JESD 201 Class 1A whisker resistance requirements and withstands solder dip at 275 °C for up to 10 seconds per JESD 22-B106. The matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, making the 1.5KE100-E3/73 suitable for modern reflow and wave solder assembly lines.
How does the clamping voltage of 1.5KE100-E3/73 compare to its breakdown voltage?
The 1.5KE100-E3/73 clamps at 137 V when subjected to its rated peak pulse current of 10.9 A (10/1000 µs waveform), which is 32–45 % above its VBR range (95–105 V). This incremental clamping voltage (ΔVC = 32–42 V) reflects the device's low dynamic impedance under surge conditions and directly determines the maximum stress imposed on protected circuitry. Designers must ensure downstream components tolerate this 137 V peak, as confirmed in the 1.5KE100-E3/73 datasheet Figure 7.
Can 1.5KE100-E3/73 be used in bidirectional configurations?
No, the 1.5KE100-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking and specified VBR/VWM values for reverse-biased operation only. Bidirectional variants use the "CA" suffix (e.g., 1.5KE100CA), which are electrically symmetrical and lack polarity marking. Using 1.5KE100-E3/73 in AC-coupled or truly bidirectional signal paths would result in forward conduction during negative half-cycles - potentially damaging the device or circuit. Always select CA-suffix parts for bidirectional protection.
What is the thermal resistance and derating behavior of 1.5KE100-E3/73?
The 1.5KE100-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15.4 °C/W. Its power dissipation derates linearly above 25 °C ambient, reaching zero at 175 °C junction temperature - per Figure 5 in the Vishay datasheet 88301. For reliable operation at elevated temperatures, designers must apply the derating curve or use the 1.5KE100-E3/73 with adequate copper pour or heatsinking to maintain TJ ≤ 150 °C under sustained surge duty cycles.
1.5KE100-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:
- 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-E3/73 FAQ
1.How can I place an order for 1.5KE100-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100-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 1.5KE100-E3/73 reliable?
The price and inventory of 1.5KE100-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 1.5KE100-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE100-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100-E3/73?
1.5KE100-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100-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 1.5KE100-E3/73?
For technical support, including 1.5KE100-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100-E3/73 requirements.
6.How does Aetrix verify that 1.5KE100-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100-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 1.5KE100-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE100-E3/73?
All 1.5KE100-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100-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 1.5KE100-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE100-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100-E3/73 Tags
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