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Vishay General Semiconductor - Diodes Division 1.5KE150C-E3/73
- Part No.:
- 1.5KE150C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150C-E3/73.pdf
- Description:
- TVS DIODE 121VWM 215VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,172
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Product details
Overview
1.5KE150C-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on power and signal lines. It features a 150 V breakdown voltage (VBR = 143–158 V), 1500 W peak pulse power (10/1000 µs), and clamps to 207 V at 7.2 A peak pulse current. It protects MOSFETs, ICs, and sensor interfaces in industrial and automotive power supplies.
For engineers reviewing the 1.5KE150C-E3/73 datasheet, 1.5KE150C-E3/73 pinout, 1.5KE150C-E3/73 application, or 1.5KE150C-E3/73 equivalent, this page delivers verified electrical specs, package dimensions, clamping behavior under surge conditions, and real-world protection use cases - all confirmed from Vishay's official 88301 document and product family characterization.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, optimized for bidirectional transient suppression. Its clamping action responds in <1 ns, with low incremental surge resistance and stable thermal performance up to TJ = 175 °C. The 1.5KE150C-E3/73 is rated for 10/1000 µs waveform compliance per R.E.A. standards and supports repetitive surge duty cycles up to 0.01 %.
It is unmarked (no polarity band) due to bidirectional symmetry and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The E3 suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance; it is commercial grade only (not AEC-Q101 qualified).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V - guaranteed avalanche conduction onset across production lot at 1 mA test current |
| VWM | 128 V - maximum steady-state reverse voltage before leakage exceeds 1 µA |
| VC @ IPPM | 207 V - clamped voltage during 7.2 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capability without failure under standardized impulse |
| IPPM | 7.2 A - maximum non-repetitive surge current supported at VC = 207 V |
| TJ max. | 175 °C - maximum junction temperature enabling operation in high-ambient environments like engine bays |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, defining derating need in enclosed layouts |
Pinout & Package
1.5KE150C-E3/73 uses the industry-standard Case Style 1.5KE DO-201AD package: axial-leaded, molded epoxy body meeting UL 94 V-0, with 0.375" (9.5 mm) lead length. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (bidirectional) | Conducts surge current in either direction; no cathode marking - symmetric terminal function |
| Cathode | Transient current sink (bidirectional) | Identical to anode in bidirectional configuration; terminals interchangeable for layout flexibility |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against lightning-induced transients and inductive switching spikes |
| Clamping time < 1 ns | Engages before sensitive logic or analog circuitry sustains damage from fast-rising edges |
| Low incremental surge resistance | Minimizes voltage overshoot during high-current transients, improving clamping precision |
| RoHS-compliant E3 suffix | Meets global environmental regulations and JESD 201 Class 1A whisker resistance for high-reliability assembly |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protecting gate drivers and MCU inputs from back-EMF spikes generated by brushed DC motor commutation. IC Role / Device Role: Bidirectional clamping element placed across DC bus or gate drive lines. Use Value: Limits transient voltage to ≤207 V, preventing latch-up or oxide breakdown in 3.3 V/5 V control ICs. | Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed infotainment and body-control modules. IC Role / Device Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters. Use Value: Withstands 1500 W surges while maintaining VWM = 128 V, ensuring normal operation during cold-crank conditions. |
| Telecom Line Interface | Industrial Sensor Signal Conditioning |
Use Scenario: Guarding RS-485 transceivers and isolation barriers against induced lightning surges on outdoor copper pairs. IC Role / Device Role: First-stage protection device bridging differential line pair to ground. Use Value: Symmetric bidirectional clamping ensures equal protection on both A and B lines without polarity concerns. | Use Scenario: Shielding 4–20 mA loop receivers and ADC front-ends from ESD and field-wiring transients in factory automation. IC Role / Device Role: Low-capacitance (<50 pF typical) shunt protector on analog input traces. Use Value: Clamps to 207 V with minimal leakage (<1 µA at 128 V), preserving signal integrity and measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | DO-214AA package (smaller footprint), lower PPPM = 600 W, same VBR range (143–158 V) | Better suited for space-constrained PCBs but requires parallel devices for 1500 W-level threats | Select when board area is critical and surge energy is moderate (e.g., consumer-grade I/O protection) |
| 1.5KE150A-E3/73 | Unidirectional variant; identical VBR, VC, and PPPM, but marked cathode band and higher VF = 5.0 V | Requires correct polarity placement; unsuitable for AC-coupled or floating signal lines | Choose only when circuit topology enforces strict unidirectional bias and polarity is fixed |
Compared with SMBJ150CA and 1.5KE150A-E3/73, the 1.5KE150C-E3/73 uniquely delivers full 1500 W bidirectional clamping in the proven DO-201AD form factor - enabling drop-in replacement in legacy industrial designs without layout or polarity changes.
Availability
1.5KE150C-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution, telecom line interface, and industrial sensor signal conditioning requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE150C-E3/73 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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and ruggedized performance.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting industrial, automotive, and telecom infrastructure where sustained 1500 W surge immunity and thermal stability up to 175 °C are mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE150C-E3/73?
The 1.5KE150C-E3/73 has a specified breakdown voltage range of 143 V to 158 V at 1 mA test current (IT), per Vishay Document 88301. This ±5 % tolerance ensures consistent clamping onset across production units and supports reliable design margining against system overvoltage thresholds.
Is 1.5KE150C-E3/73 AEC-Q101 qualified?
No, the 1.5KE150C-E3/73 is commercial grade only. AEC-Q101 qualification applies only to variants with the HE3 suffix (e.g., 1.5KE150CAHE3_B). The E3 suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance but does not imply automotive qualification.
What is the maximum clamping voltage of 1.5KE150C-E3/73 under surge conditions?
The 1.5KE150C-E3/73 clamps to a maximum of 207 V at its rated peak pulse current of 7.2 A (IPPM) under a 10/1000 µs waveform. This value is guaranteed across temperature and production lot, and defines the upper voltage limit imposed on protected circuitry during transient events.
Can 1.5KE150C-E3/73 be used in AC signal paths?
Yes - the bidirectional construction of 1.5KE150C-E3/73 makes it ideal for AC-coupled or floating signal lines such as RS-485, CAN, or audio interfaces. Unlike unidirectional TVS diodes, it provides symmetrical clamping without polarity constraints or risk of forward conduction during negative half-cycles.
What is the thermal resistance of 1.5KE150C-E3/73?
The 1.5KE150C-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15.4 °C/W, per Vishay Document 88301. These values inform derating curves and heatsinking requirements - especially critical when operating near TJ = 175 °C maximum.
1.5KE150C-E3/73 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:
- -
- 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-E3/73 FAQ
1.How can I place an order for 1.5KE150C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150C-E3/73 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 1.5KE150C-E3/73 reliable?
The price and inventory of 1.5KE150C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE150C-E3/73?
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1.5KE150C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150C-E3/73 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 1.5KE150C-E3/73?
For technical support, including 1.5KE150C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE150C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150C-E3/73 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 1.5KE150C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE150C-E3/73?
All 1.5KE150C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150C-E3/73, 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 1.5KE150C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE150C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150C-E3/73 Tags
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