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Vishay General Semiconductor - Diodes Division 1.5KE150C-E3/54
- Part No.:
- 1.5KE150C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150C-E3/54.pdf
- Description:
- TVS DIODE 121VWM 215VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,351
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Product details
Overview
1.5KE150C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 150 V breakdown voltage (VBR min/max = 143–158 V), 128 V standoff voltage (VWM), 207 V clamping voltage (VC) at 7.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the 1.5KE150C-E3/54 datasheet, 1.5KE150C-E3/54 pinout, 1.5KE150C-E3/54 application, or 1.5KE150C-E3/54 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under transient stress, thermal derating curves, and direct alternatives for ESD/lightning surge protection design validation.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, enabling bidirectional clamping without polarity sensitivity. Its 10/1000 µs waveform response delivers sub-nanosecond turn-on (<1 ns), low incremental surge resistance, and stable clamping across -55 °C to +175 °C junction temperature range.
Designed for unclamped inductive switching transients and lightning-induced surges, it exhibits 0.106 %/°C temperature coefficient of VBR, 1.0 µA max reverse leakage at VWM, and meets JESD22-B106 solderability (275 °C, 10 s) and JESD201 Class 1A whisker testing (E3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V - defines guaranteed avalanche conduction onset window under 1 mA test current |
| VWM | 128 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 207 V at 7.2 A - clamping voltage during full 1500 W transient, limiting downstream voltage stress |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs standard waveform, duty cycle ≤ 0.01 % |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for repetitive surges |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package, 0.375" lead length, UL 94 V-0 molded epoxy body |
Pinout & Package
1.5KE150C-E3/54 uses a two-terminal axial-leaded DO-201AD package (Case Style 1.5KE) with no polarity marking - consistent with bidirectional TVS function. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional avalanche junction | Either terminal serves as cathode or anode depending on transient polarity - no color band or marking required |
| Lead 1 / Lead 2 | Current path for surge conduction | Leads conduct full IPPM (7.2 A) during clamping; thermal path defined by RθJL = 15.4 °C/W to lead |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power | Handles lightning-surge-level energy (IEC 61000-4-5 Level 4) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive downstream components experience overvoltage stress |
| UL 94 V-0 flammability rating | Mold compound self-extinguishes, supporting safety-critical industrial and automotive designs |
| E3 RoHS-compliant finish | Meets JESD201 Class 1A whisker resistance, suitable for high-reliability automated assembly |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 24 V DC input rails in programmable logic controllers against inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp ±1 kV/500 A transients before they reach upstream DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤207 V during surge, preventing latch-up or gate oxide rupture in 3.3 V/5 V logic and power MOSFETs. | Use Scenario: Shields LIN bus interface and door actuator driver circuits from load-dump and jump-start transients in vehicle body electronics. IC Role / Device Role / Timing Role: Mounted at connector entry point to absorb 10/1000 µs surges up to 1500 W while maintaining <1 µA leakage at 12 V nominal. Use Value: Enables compliance with ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off) without additional filtering stages. |
| Telecom Remote Sensor Interface | Renewable Energy Inverter DC Link |
Use Scenario: Guards RS-485 transceivers and analog sensor inputs in outdoor weather stations exposed to induced lightning on long cable runs. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pair and ground, responding within <1 ns to fast-rising common-mode surges. Use Value: Maintains signal integrity below 207 V clamping threshold while preserving <1 pF junction capacitance to avoid data rate degradation. | Use Scenario: Protects IGBT gate drivers and auxiliary power supply inputs in solar string inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: Placed across DC link capacitor terminals to suppress voltage spikes caused by rapid IGBT turn-off in high-di/dt conditions. Use Value: Absorbs 1500 W pulses without thermal runaway, leveraging 175 °C TJ max to sustain operation in sealed, convection-cooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Surface-mount SMB package (vs. axial DO-201AD); same VBR (143–158 V), lower PPPM = 600 W | Requires PCB layout change; suited for space-constrained consumer electronics, not high-power industrial rails | Select when board area is limited and surge energy is ≤600 W; verify thermal pad design for SMBJ150CA |
| 1.5KE150A-E3/54 | Unidirectional version; identical VBR, VWM, VC, and PPPM, but includes cathode band marking | Requires correct polarity placement; used where DC bias prevents reverse conduction (e.g., single-polarity power rails) | Choose only if circuit topology enforces unidirectional voltage stress - otherwise 1.5KE150C-E3/54 offers simpler layout and universal polarity handling |
Compared with SMBJ150CA and 1.5KE150A-E3/54, the 1.55KE150C-E3/54 uniquely combines axial-leaded mechanical robustness, 1500 W surge capacity, and true bidirectional symmetry - making it optimal for high-energy, polarity-agnostic protection in industrial and automotive power interfaces where through-hole mounting and legacy compatibility are required.
Availability
1.5KE150C-E3/54 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom remote sensor interfaces, and renewable energy inverter DC links requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE150C-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, 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-environment applications - delivering consistent clamping performance across wide temperature ranges and high-repetition surge events in industrial and transportation systems.
FAQ
What is the clamping voltage of the 1.5KE150C-E3/54 under maximum surge conditions?
The 1.5KE150C-E3/54 has a maximum clamping voltage (VC) of 207 V at its rated peak pulse current (IPPM) of 7.2 A, measured using the standardized 10/1000 µs double-exponential waveform. This value ensures downstream components see no more than 207 V during a full 1500 W transient event, directly supporting IEC 61000-4-5 compliance testing protocols. The 1.5KE150C-E3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is the 1.5KE150C-E3/54 RoHS compliant and qualified for automotive use?
Yes, the 1.5KE150C-E3/54 carries the E3 suffix, indicating RoHS compliance and JESD201 Class 1A whisker resistance. While the base 1.5KE150C-E3/54 is commercial-grade, Vishay offers the AEC-Q101-qualified variant 1.5KE150CHE3_B for automotive applications - confirmed in the official datasheet revision 09-Aug-2022, Document Number 88301. The 1.5KE150C-E3/54 itself is widely deployed in non-safety-critical automotive subsystems such as body electronics and infotainment power rails.
How does the 1.5KE150C-E3/54 differ from unidirectional 1.5KE150A-E3/54 in circuit implementation?
The 1.5KE150C-E3/54 is bidirectional and lacks polarity marking, allowing installation in either orientation across AC or bipolar DC lines. In contrast, the 1.5KE150A-E3/54 has a cathode band and must be oriented to block forward current during normal operation. Both share identical VBR, VWM, VC, and PPPM specs, but the 1.5KE150C-E3/54 eliminates orientation-dependent layout errors and supports symmetrical surge protection in floating or dual-rail systems.
What is the thermal resistance and maximum junction temperature of the 1.5KE150C-E3/54?
The 1.5KE150C-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a maximum junction temperature (TJ) of +175 °C. Its junction-to-lead resistance (RθJL) is 15.4 °C/W, confirming efficient heat transfer through the leads. These values enable reliable operation in sealed enclosures or high-ambient environments - critical for industrial motor drives and automotive under-hood applications where the 1.5KE150C-E3/54 is routinely specified.
Can the 1.5KE150C-E3/54 be used in parallel to increase surge current handling?
Yes, the 1.5KE150C-E3/54 can be paralleled to increase total peak pulse current capacity, but matching VBR tolerances (±5 %) and ensuring symmetrical PCB layout (equal trace inductance/resistance) are essential to prevent current imbalance. Vishay's application notes confirm this practice for >1500 W requirements - however, thermal coupling and derating per Fig. 2 of datasheet 88301 must be applied. For most designs, a single 1.5KE150C-E3/54 suffices for 1500 W events; parallel use is reserved for extreme cases like utility-grade surge arresters.
1.5KE150C-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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE150C-E3/54 FAQ
1.How can I place an order for 1.5KE150C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150C-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 1.5KE150C-E3/54 reliable?
The price and inventory of 1.5KE150C-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 1.5KE150C-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE150C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150C-E3/54?
1.5KE150C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150C-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 1.5KE150C-E3/54?
For technical support, including 1.5KE150C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150C-E3/54 requirements.
6.How does Aetrix verify that 1.5KE150C-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150C-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 1.5KE150C-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE150C-E3/54?
All 1.5KE150C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150C-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 1.5KE150C-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE150C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150C-E3/54 Tags
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