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Vishay General Semiconductor - Diodes Division 1.5KE150HE3/54
- Part No.:
- 1.5KE150HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150HE3/54.pdf
- Description:
- TVS DIODE 121VWM 215VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,428
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Product details
Overview
1.5KE150HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in power rails and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 143 V minimum breakdown voltage (VBR), 128 V maximum standoff voltage (VWM), 7.2 A peak pulse current (IPPM), and clamps to 207 V at rated surge. It is used in automotive power supply inputs, industrial motor drive DC bus protection, and telecom line interface circuits.
For engineers reviewing the 1.5KE150HE3/54 datasheet, 1.5KE150HE3/54 pinout, 1.5KE150HE3/54 application, or 1.5KE150HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin plating, and JEDEC 1.5KE package mechanical data - all critical for ESD/surge hardening and long-term reliability validation.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response time (<1 ns) to transient overvoltages. Its unidirectional polarity uses a cathode band marking and exhibits low incremental surge resistance, enabling precise clamping during 10/1000 µs surges up to 1500 W.
The 1.5KE150HE3/54 is rated for -55 °C to +175 °C operating junction temperature, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains stable VBR temperature coefficient of 0.106 %/°C - essential for thermal stability in under-hood automotive environments and high-temperature industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V at 1 mA test current - defines reliable avalanche initiation threshold for overvoltage detection |
| VWM | 128 V maximum - ensures no conduction during normal 120 VAC-derived DC rail operation |
| VC @ IPPM | 207 V clamping voltage at 7.2 A - limits downstream component stress during worst-case surge |
| PPPM | 1500 W peak pulse power (10/1000 µs) - sustains high-energy transients without failure |
| IFSM | 200 A surge current (8.3 ms half-sine) - handles inrush and fault currents in power systems |
| TJ max | +175 °C - enables placement near heat sources in engine control units and power converters |
| RθJA | 75 °C/W - informs heatsink requirements when operating above 25 °C ambient |
Pinout & Package
Package: JEDEC-standard 1.5KE molded epoxy case (Case Style 1.5KE), axial leaded, RoHS-compliant matte tin plating, UL 94 V-0 rated molding compound. Dimensions: 5.3 mm diameter × 9.5 mm length, 0.968 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected circuit ground or low-side return path during clamping |
| Cathode (banded end) | Avalanche breakdown terminal | Connected to line/rail being protected; reverse-biased during surge events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable leakage performance and long-term reliability under humidity and thermal cycling |
| AEC-Q101 qualified | Validated for automotive-grade use including engine control, body electronics, and infotainment power rails |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges without degradation when properly mounted |
| Sub-nanosecond response | Clamps within <1 ns - faster than MOVs or polymer-based protectors, preserving IC integrity |
| JESD 201 Class 2 whisker resistance | HE3 suffix confirms robust matte tin plating suitable for high-reliability soldering processes |
Applications
| Automotive Power Input Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and input filter capacitor. Use Value: Limits voltage to ≤207 V during 120 V load dump pulses, preventing damage to LDOs and microcontrollers. | Use Scenario: Safeguarding IGBT gate drivers and current sense amplifiers on 300–400 V DC bus in variable frequency drives. IC Role / Device Role / Timing Role: Parallel-connected TVS across bus rails to absorb regenerative energy spikes. Use Value: Clamps fast-rising transients (<100 ns) from inductive switching, reducing risk of gate oxide rupture. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Secondary-side surge protection on POTS or DSL line interfaces exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional shunt protector on low-voltage analog signal paths after isolation transformer. Use Value: Maintains <1 µA leakage at 128 V, preserving signal integrity while suppressing >1 kV transients. | Use Scenario: Output overvoltage clamp in 19 V laptop AC/DC adapters subject to feedback loop failure. IC Role / Device Role / Timing Role: Last-resort crowbar device across secondary winding output capacitor. Use Value: Activates at 143 V to short-circuit fault condition before downstream USB-PD controllers are damaged. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Lower PPPM (600 W), smaller SMB package (3.5 mm × 4.6 mm), higher VC/VBR ratio | Better suited for space-constrained PCBs; less effective for high-energy ISO 7637-2 pulses | Select when board area is critical and surge energy is limited to IEC 61000-4-5 Level 2 |
| 1.5KE150A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101), HE3 suffix omitted | Lacks automotive qualification; not approved for under-hood or safety-critical modules | Use only in consumer or industrial equipment where AEC-Q101 is not mandated |
Compared with 1.5KE150HE3/54, SMBJ150A trades peak power and thermal robustness for compactness, while 1.5KE150A-E3/54 retains identical clamping behavior but omits automotive qualification - making the HE3/54 uniquely suitable for production automotive systems requiring both performance and compliance.
Availability
1.5KE150HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and telecom infrastructure requiring stable component supply, AEC-Q101 traceability, and long-lifecycle support.
Supply support for 1.5KE150HE3/54 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure tolerance and surge immunity are mission-critical.
FAQ
What is the clamping voltage of the 1.5KE150HE3/54 under full-rated surge current?
The 1.5KE150HE3/54 clamps to a maximum of 207 V when subjected to its rated 7.2 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees predictable overvoltage limiting during surge events - critical for protecting downstream 200 V-rated capacitors and 16-bit ADC front-ends in automotive sensor modules.
Is the 1.5KE150HE3/54 qualified for automotive applications?
Yes, the 1.5KE150HE3/54 is AEC-Q101 qualified, as confirmed by Vishay's documentation for the HE3 suffix variants (1.5KE6.8AHE3_B to 1.5KE220AHE3_B). This qualification covers stress tests including temperature cycling, humidity bias, and high-temperature operating life - making the 1.5KE150HE3/54 suitable for engine control units, body control modules, and ADAS power supplies.
What does the "HE3/54" suffix mean in 1.5KE150HE3/54?
The "HE3" suffix indicates RoHS-compliant matte tin plating meeting JESD 201 Class 2 whisker resistance, plus AEC-Q101 qualification. The "/54" denotes packaging in 13" paper tape and reel with a base quantity of 1400 units - a standard logistics code used by Vishay for automated SMT placement compatibility and traceable lot control.
How does the 1.5KE150HE3/54 compare to MOV-based protection?
Unlike metal-oxide varistors, the 1.5KE150HE3/54 offers sub-nanosecond response time, no capacitance-induced signal distortion, and no wear-out mechanism from repeated surges. Its precise 143–158 V breakdown range and stable 207 V clamping provide tighter voltage control than MOVs - especially valuable in high-speed data lines and precision analog circuits where leakage and aging matter.
Can the 1.5KE150HE3/54 be used in bidirectional configurations?
No - the 1.5KE150HE3/54 is strictly unidirectional, as indicated by the "A" suffix (not "CA"). Bidirectional versions exist only up to 1.5KE220CA; 1.5KE150CA is a valid part but distinct from 1.5KE150HE3/54. Using this part in reverse-biased AC applications would result in forward conduction and failure. Always verify polarity marking (cathode band) during layout.
1.5KE150HE3/54 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):
- 121V
- Voltage - Breakdown (Min):
- 136V
- Voltage - Clamping (Max) @ Ipp:
- 215V
- Current - Peak Pulse (10/1000µs):
- 7A
- 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
1.5KE150HE3/54 FAQ
1.How can I place an order for 1.5KE150HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150HE3/54 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 1.5KE150HE3/54 reliable?
The price and inventory of 1.5KE150HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE150HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150HE3/54?
1.5KE150HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150HE3/54 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 1.5KE150HE3/54?
For technical support, including 1.5KE150HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150HE3/54 requirements.
6.How does Aetrix verify that 1.5KE150HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150HE3/54 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 1.5KE150HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE150HE3/54?
All 1.5KE150HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150HE3/54, 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 1.5KE150HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE150HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150HE3/54 Tags
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