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Vishay General Semiconductor - Diodes Division 1.5KE150AHE3/51
- Part No.:
- 1.5KE150AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150AHE3/51.pdf
- Description:
- TVS DIODE 128VWM 207VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,349
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Product details
Overview
1.5KE150AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC 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 stand-off voltage (VWM), 207 V clamping voltage at peak current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5KE150AHE3/51 datasheet, 1.5KE150AHE3/51 pinout, 1.5KE150AHE3/51 application, or 1.5KE150AHE3/51 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, thermal resistance (RθJL = 15.4 °C/W), unidirectional polarity marking, RoHS-compliant matte tin plating, and JESD 201 Class 2 whisker resistance.
Technical Context
This TVS diode employs a glass passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power handling is specified per IEC 61000-4-5 with 10/1000 µs waveform and 0.01% duty cycle, enabling robust protection against lightning-induced surges and inductive switching transients.
The device operates across -55 °C to +175 °C junction temperature range and exhibits a +0.106 %/°C temperature coefficient of VBR. It delivers 7.2 A peak pulse current (IPPM) at 207 V clamping, with 1.0 mA test current (IT) and ≤1.0 µA reverse leakage at 128 V (VWM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single high-energy transients without failure |
| Breakdown Voltage VBR (min/max) | 143 V / 158 V at 1.0 mA - defines reliable conduction onset threshold |
| Stand-off Voltage VWM | 128 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA |
| Clamping Voltage VC at IPPM | 207 V at 7.2 A - limits protected circuit voltage during surge event |
| Peak Pulse Current IPPM | 7.2 A - maximum transient current safely diverted to ground |
| Junction Temperature Range | -55 °C to +175 °C - supports operation in under-hood automotive and industrial environments |
| Thermal Resistance RθJL | 15.4 °C/W - enables effective heat transfer from junction to lead under pulsed conditions |
Pinout & Package
Package: Axial-leaded DO-201AD (Case Style 1.5KE), molded epoxy body with UL 94 V-0 rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected line when used in uni-directional clamp configuration |
| Cathode | Current exit point in forward bias; marked with band | Typically tied to ground or lower-potential rail for transient shunting |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime and temperature cycling |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and body modules |
| 1500 W peak pulse power | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment |
| Fast response time (<1 ns) | Clamps transients before sensitive ICs experience overstress |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications with long service life |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Uni-directional TVS placed between power rail and chassis ground to clamp positive-going transients. Use Value: Withstands 1500 W surges while limiting rail voltage to ≤207 V, preventing MOSFET gate oxide rupture and microcontroller latch-up. |
Use Scenario: Shielding digital input terminals of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC inputs to suppress EFT bursts and lightning-coupled transients. Use Value: 128 V VWM ensures no leakage during normal operation; 207 V VC protects downstream optocouplers and level shifters. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485 transceivers connected to outdoor cabling exposed to induced lightning. IC Role / Device Role / Timing Role: Uni-directional TVS on VCC supply line of interface IC to absorb common-mode surges. Use Value: 7.2 A IPPM capacity handles multi-kV transients; glass passivation ensures long-term stability in humid environments. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Clamp diode across motor terminals to divert inductive kickback energy. Use Value: 175 °C max junction temperature accommodates sealed motor enclosures; 15.4 °C/W RθJL enables efficient heat dissipation into PCB copper. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | DO-214AA package; 600 W rating; 143–158 V VBR; 207 V VC at 2.9 A | Lower power handling; surface-mount only; suited for space-constrained PCBs | Select SMBJ150A when board area is limited and surge energy is ≤600 W |
| 1.5KE150A-E3/54 | Same electrical specs; RoHS-compliant commercial grade (non-AEC-Q101); identical DO-201AD package | Lacks automotive qualification; suitable for industrial/commercial systems with less stringent reliability requirements | Choose 1.5KE150A-E3/54 for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with 1.5KE150AHE3/51, SMBJ150A offers smaller footprint but reduced surge capacity, while 1.5KE150A-E3/54 matches all electrical parameters but omits AEC-Q101 validation-making it appropriate for non-automotive use cases where qualification overhead is unnecessary.
Availability
1.5KE150AHE3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, telecom infrastructure, and consumer appliance designs requiring stable component supply and AEC-Q101 assurance.
Supply support for 1.5KE150AHE3/51 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where robustness against lightning, ESD, and inductive switching is critical.
FAQ
What is the clamping voltage of the 1.5KE150AHE3/51 under a 10/1000 µs surge?
The 1.5KE150AHE3/51 clamps to a maximum of 207 V at its rated peak pulse current of 7.2 A, as defined by the 10/1000 µs waveform per IEC 61000-4-5. This value is measured with the device mounted on a standard test fixture and represents the upper limit of voltage seen by downstream circuitry during a full-power transient event. The 1.5KE150AHE3/51 maintains this clamping performance across its qualified operating temperature range.
Is the 1.5KE150AHE3/51 suitable for automotive applications?
Yes, the 1.5KE150AHE3/51 is AEC-Q101 qualified and specifically rated for automotive use, including engine control units, body electronics, and infotainment power supplies. Its -55 °C to +175 °C junction temperature range, glass passivated junction, and JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements. The 1.5KE150AHE3/51 is documented in Vishay's AEC-Q101 qualified product list for the 1.5KE family.
How does the 1.5KE150AHE3/51 differ from the 1.5KE150A-E3/54?
The 1.5KE150AHE3/51 and 1.5KE150A-E3/54 share identical electrical specifications-including VBR, VWM, VC, and PPPM-but differ in qualification status: the HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas the E3 suffix indicates RoHS-compliant commercial grade only. Both use the same DO-201AD package and matte tin plating. The 1.5KE150AHE3/51 is intended for automotive and high-reliability industrial use.
What is the thermal resistance from junction to lead for the 1.5KE150AHE3/51?
The 1.5KE150AHE3/51 has a typical thermal resistance of 15.4 °C/W from junction to lead (RθJL), measured under pulsed conditions with 0.375" (9.5 mm) lead length. This parameter enables accurate estimation of junction temperature rise during repetitive surge events and informs heatsinking decisions when used in high-duty-cycle applications. The 1.5KE150AHE3/51 leverages its axial package geometry to achieve this low thermal impedance relative to surface-mount alternatives.
Does the 1.5KE150AHE3/51 have polarity marking, and how is it identified?
Yes, the 1.5KE150AHE3/51 is a uni-directional TVS diode with polarity clearly marked: a colored band on the cathode end identifies the terminal that must be connected to ground or the lower-potential reference point. This marking aligns with JEDEC standards and ensures correct orientation during manual or automated assembly. The 1.5KE150AHE3/51 does not feature markings on bi-directional variants, confirming its designated uni-directional function.
1.5KE150AHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- 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
1.5KE150AHE3/51 FAQ
1.How can I place an order for 1.5KE150AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150AHE3/51 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 1.5KE150AHE3/51 reliable?
The price and inventory of 1.5KE150AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE150AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150AHE3/51?
1.5KE150AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150AHE3/51 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 1.5KE150AHE3/51?
For technical support, including 1.5KE150AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE150AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150AHE3/51 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 1.5KE150AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE150AHE3/51?
All 1.5KE150AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150AHE3/51, 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 1.5KE150AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE150AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150AHE3/51 Tags
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