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Vishay General Semiconductor - Diodes Division 1.5KE150-E3/54
- Part No.:
- 1.5KE150-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150-E3/54.pdf
- Description:
- TVS DIODE 121VWM 215VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,620
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Product details
Overview
1.5KE150-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust 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), and clamps transients to ≤207 V at 7.2 A peak pulse current - deployed in automotive power supplies, industrial motor drives, and telecom interface protection.
For engineers reviewing the 1.5KE150-E3/54 datasheet, 1.5KE150-E3/54 pinout, 1.5KE150-E3/54 application, or 1.5KE150-E3/54 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under standardized surge waveforms, and RoHS-compliant commercial-grade sourcing details aligned with JEDEC 1.5KE package requirements.
Technical Context
This TVS diode operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its specified breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling precise transient suppression without thermal runaway under repetitive 10/1000 µs surges at 0.01% duty cycle.
Designed for unidirectional operation, it exhibits 3.5 V forward voltage at 100 A (per spec note), supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains operational integrity from –55 °C to +175 °C junction temperature - validated per JESD22-B102 solderability and JESD201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V at 1 mA test current - defines reliable turn-on threshold for overvoltage detection |
| VWM | 128 V maximum - ensures no conduction during normal 125 V DC rail operation |
| VC @ IPPM | ≤207 V at 7.2 A - limits protected circuit voltage during full-rated 1500 W transient |
| PPPM | 1500 W (10/1000 µs waveform) - sustains high-energy lightning-induced surges per IEC 61000-4-5 |
| IFSM | 200 A (8.3 ms half-sine) - withstands inrush currents in power supply input stages |
| TJ max | +175 °C - enables use in under-hood automotive and high-ambient industrial environments |
| RθJA | 75 °C/W - requires minimal heatsinking for continuous 6.5 W dissipation at TL = 75 °C |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body with matte tin-plated leads; meets UL 94 V-0 flammability rating and RoHS compliance (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance reference in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 125 V DC bus); color band denotes cathode end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation |
| Fast response time (≤1 ns) | Clamps transients before sensitive ICs (e.g., MCU I/O, CAN transceivers) experience overstress |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events like relay coil flyback |
| RoHS-compliant E3 suffix | Meets JESD201 Class 1A whisker resistance and J-STD-002 solderability standards |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 125 V DC bus in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bus and chassis ground to clamp positive-going transients. Use Value: Limits voltage excursion to ≤207 V during 1500 W surges, preventing gate oxide rupture in MOSFET drivers. | Use Scenario: Safeguarding PLC analog input modules from inductive kickback of solenoid valves. IC Role / Device Role / Timing Role: Standoff-connected TVS on 24 V sensor supply line, conducting only during >128 V spikes. Use Value: Responds within 1 ns to suppress 10/1000 µs transients, preserving ADC accuracy and isolation barrier integrity. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Secondary-side surge protection on Ethernet PHY power rails in PoE-powered switches. IC Role / Device Role / Timing Role: Clamping device referenced to local ground, absorbing induced lightning surges on 48 V bias lines. Use Value: Withstands 200 A surge current (8.3 ms) without parametric shift, ensuring field-replaceable module reliability. | Use Scenario: Overvoltage guard on 19 V output of laptop AC adapters exposed to mains transients. IC Role / Device Role / Timing Role: Unidirectional shunt element across output capacitor, activated only above 128 V. Use Value: Maintains <1 µA leakage at 125 V, eliminating standby power loss while delivering 1500 W clamping headroom. |
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 (SMB), 600 W PPPM, same VWM/VC profile but lower surge capacity | Suitable for space-constrained PCBs where 1500 W rating is not required | Select when board area is critical and peak surge energy is ≤600 W |
| 1.5KE150AHE3_B | AEC-Q101 qualified version in identical DO-201AD package, same electrical specs | Required for automotive under-hood applications demanding qualification evidence | Choose for automotive OEM designs requiring documented AEC-Q101 compliance |
Compared with 1.5KE150-E3/54, SMBJ150A offers smaller footprint but sacrifices 60% peak pulse power capability, while 1.5KE150AHE3_B provides identical protection performance with certified automotive reliability - neither is pin-compatible due to differing leadform geometry, though both serve equivalent circuit functions.
Availability
1.5KE150-E3/54 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controls, telecom infrastructure, and consumer power adapter designs requiring stable component supply and RoHS-compliant commercial-grade TVS protection.
Supply support for 1.5KE150-E3/54 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, and protection devices with emphasis on reliability and ruggedized packaging.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting applications where sustained 1500 W surge handling, wide temperature operation, and JEDEC-standard axial-leaded form factor are essential.
FAQ
What is the breakdown voltage range of the 1.5KE150-E3/54?
The 1.5KE150-E3/54 has a guaranteed breakdown voltage (VBR) range of 143 V to 158 V at 1 mA test current, measured per JEDEC standard. This tight ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes from –55 °C to +175 °C. The 1.5KE150-E3/54 achieves this via glass-passivated junction construction, which stabilizes VBR drift under thermal stress and long-term operation.
Does the 1.5KE150-E3/54 meet automotive qualification standards?
The 1.5KE150-E3/54 is a commercial-grade part and is not AEC-Q101 qualified. However, Vishay offers the functionally identical 1.5KE150AHE3_B variant, which carries full AEC-Q101 qualification for automotive under-hood use. The 1.5KE150-E3/54 itself meets JESD201 Class 1A whisker resistance and J-STD-002 solderability, making it suitable for industrial and telecom applications where automotive certification is not mandated.
What is the maximum clamping voltage of the 1.5KE150-E3/54 under rated surge conditions?
The 1.5KE150-E3/54 clamps to a maximum of 207 V when subjected to its full-rated 7.2 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet (Doc. #88301) and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. The 1.5KE150-E3/54 achieves this with low incremental surge resistance, minimizing overshoot beyond VC.
Can the 1.5KE150-E3/54 be used in bidirectional configurations?
No, the 1.5KE150-E3/54 is a unidirectional TVS diode and is not rated for bidirectional operation. Bidirectional variants in the 1.5KE family carry the "CA" suffix (e.g., 1.5KE150CA) and are only available up to 220 V VBR. Using the 1.5KE150-E3/54 in reverse-biased AC applications risks catastrophic failure, as its structure lacks symmetrical avalanche characteristics. For bidirectional protection at this voltage level, select 1.5KE150CA or verify alternate solutions.
What packaging format is supplied for the 1.5KE150-E3/54?
The 1.5KE150-E3/54 is supplied in 13-inch diameter paper tape and reel packaging, with a base quantity of 1400 units per reel (package code "54"). The device uses JEDEC DO-201AD case style with axial leads, and the E3 suffix confirms RoHS compliance, matte tin plating, and JESD201 Class 1A whisker resistance. This packaging supports automated insertion and reflow-compatible assembly processes without lead bending or orientation concerns.
1.5KE150-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE150-E3/54 FAQ
1.How can I place an order for 1.5KE150-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150-E3/54 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 1.5KE150-E3/54 reliable?
The price and inventory of 1.5KE150-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE150-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150-E3/54?
1.5KE150-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150-E3/54 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 1.5KE150-E3/54?
For technical support, including 1.5KE150-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150-E3/54 requirements.
6.How does Aetrix verify that 1.5KE150-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150-E3/54 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 1.5KE150-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE150-E3/54?
All 1.5KE150-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150-E3/54, 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 1.5KE150-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE150-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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