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Vishay General Semiconductor - Diodes Division 1.5KE100HE3/73
- Part No.:
- 1.5KE100HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100HE3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,091
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Product details
Overview
1.5KE100HE3/73 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 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 (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE100HE3/73 datasheet, 1.5KE100HE3/73 pinout, 1.5KE100HE3/73 application, or 1.5KE100HE3/73 equivalent, this part delivers verified AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive and industrial reliability 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 clamping voltage (VC) at 10.9 A (10/1000 µs waveform), with a temperature coefficient of VBR at +0.106 %/°C.
The device supports 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), dissipates 6.5 W on infinite heatsink at TL = 75 °C, and exhibits 3.5 V max forward voltage at 100 A. Thermal resistance is 15.4 °C/W junction-to-lead and 75 °C/W junction-to-ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95.0 V / 105 V - ensures reliable triggering above normal operating voltage while avoiding false trips under tolerance stack-up |
| VWM | 85.5 V - maximum continuous reverse working voltage; defines safe DC bias margin before leakage rises |
| VC @ IPPM | 137 V - clamping voltage at 10.9 A peak pulse; determines protected circuit's maximum transient exposure level |
| PPPM | 1500 W - peak pulse power handling (10/1000 µs); enables robust suppression of lightning and EFT events |
| IPPM | 10.9 A - peak pulse current capacity; sets minimum series impedance required for effective energy diversion |
| TJ range | –55 °C to +175 °C - supports operation in under-hood automotive, industrial motor drives, and outdoor telecom enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded, molded epoxy body meeting UL 94 V-0 flammability rating; 0.375" (9.5 mm) lead length; 0.210" (5.3 mm) body diameter; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-impedance return path in unidirectional TVS configuration |
| Cathode | Current exit point during forward conduction; clamping node in reverse-biased protection mode | Connected to protected line (e.g., 12 V rail, CAN_H); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term leakage stability under thermal stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without derating in typical PCB layouts |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements including HTGB and AC-H3TRB |
| Matte tin-plated leads | Ensures solderability per J-STD-002/JESD 22-B102 and eliminates whisker risk per JESD 201 Class 2 |
| UL 94 V-0 molding compound | Provides flame-retardant housing essential for enclosed industrial and automotive control modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary clamping element placed between power input and local regulator input. Use Value: Limits transient voltage to ≤137 V, preventing damage to downstream LDOs and microcontrollers rated for 16 V absolute max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from EMI and cable discharge. IC Role / Device Role: Unidirectional shunt protector on signal line referenced to system ground. Use Value: Clamps induced surges within 1 ns, preserving signal integrity below 10 mV offset shift for 16-bit ADC front-ends. |
| Telecom DC Power Input | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered network equipment inputs against lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role: Line-to-ground TVS on primary DC input stage prior to DC/DC conversion. Use Value: Absorbs 1500 W pulses without degradation, maintaining >100 kΩ insulation resistance after 1000 surges per IEC 61000-4-5. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role: Flyback diode replacement with superior clamping precision and faster response than standard rectifiers. Use Value: Reduces voltage overshoot to 137 V vs. >200 V with generic diodes, extending MOSFET lifetime by >3× in 100,000-cycle endurance tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), higher VC (162 V @ 3.7 A) | Suitable for space-constrained PCBs but requires parallel placement for equivalent energy handling | Select when board area is limited and surge duty cycle is low; verify thermal relief for repeated events |
| 1.5KE100A-E3/54 | Same electrical specs, but commercial-grade (non-AEC-Q101), E3 suffix only (JESD 201 Class 1A whisker test) | Acceptable for consumer or industrial non-automotive use where qualification traceability is not mandated | Choose for cost-sensitive designs outside automotive supply chain; avoid in Tier-1 vehicle subsystems |
Compared with 1.5KE100HE3/73, SMBJ100A trades off pulse power and thermal robustness for compactness, while 1.5KE100A-E3/54 retains identical protection performance but omits automotive qualification - making the HE3/73 uniquely suited for safety-critical vehicular deployments requiring full AEC-Q101 documentation and process control.
Availability
1.5KE100HE3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface hardening, and telecom DC input protection requiring stable component supply across extended temperature and high-reliability environments.
Supply support for 1.5KE100HE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising long-term parametric stability.
FAQ
What is the clamping voltage of the 1.5KE100HE3/73 under a 10/1000 µs surge?
The 1.5KE100HE3/73 has a maximum clamping voltage (VC) of 137 V at 10.9 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The 1.5KE100HE3/73 maintains this clamping performance across its full operating temperature range and after repeated surge exposures when mounted with adequate thermal relief.
Is the 1.5KE100HE3/73 qualified for automotive applications?
Yes, the 1.5KE100HE3/73 is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88301, Revision 09-Aug-2022). The HE3 suffix explicitly denotes compliance with AEC-Q101 stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. This makes the 1.5KE100HE3/73 suitable for under-hood and chassis-mounted automotive electronics where qualification traceability is mandatory.
How does the 1.5KE100HE3/73 differ from the 1.5KE100A-E3/54?
The 1.5KE100HE3/73 and 1.5KE100A-E3/54 share identical electrical parameters (VBR, VWM, VC, PPPM) and package outline, but differ in qualification and plating. The HE3/73 carries AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas the E3/54 is commercial-grade with Class 1A whisker testing. Both are RoHS compliant, but only the 1.5KE100HE3/73 meets automotive supply chain requirements for PPAP and process validation.
What is the maximum operating temperature for the 1.5KE100HE3/73?
The 1.5KE100HE3/73 has a maximum junction temperature (TJ) of +175 °C and a storage temperature range of –55 °C to +175 °C. Its thermal resistance junction-to-lead is 15.4 °C/W, enabling reliable operation in high-ambient environments such as engine compartments or industrial motor drive cabinets when mounted with ≥0.375" lead length and proper copper pour. Derating begins above TA = 25 °C per Figure 2 in the Vishay datasheet.
Does the 1.5KE100HE3/73 have polarity marking, and how is it identified?
Yes, the 1.5KE100HE3/73 is unidirectional and features a visible cathode band - a colored stripe near one end of the axial package - indicating the cathode terminal. This band must be oriented toward the line being protected (e.g., 12 V rail), while the anode connects to ground or return. Bidirectional variants use "CA" suffixes and lack polarity markings; the 1.5KE100HE3/73 is strictly unidirectional and relies on this band for correct PCB orientation.
1.5KE100HE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE100HE3/73 FAQ
1.How can I place an order for 1.5KE100HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100HE3/73 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 1.5KE100HE3/73 reliable?
The price and inventory of 1.5KE100HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE100HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100HE3/73?
1.5KE100HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100HE3/73 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 1.5KE100HE3/73?
For technical support, including 1.5KE100HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100HE3/73 requirements.
6.How does Aetrix verify that 1.5KE100HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100HE3/73 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 1.5KE100HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE100HE3/73?
All 1.5KE100HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100HE3/73, 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 1.5KE100HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE100HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100HE3/73 Tags
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