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Vishay General Semiconductor - Diodes Division 1.5KE150HE3/73
- Part No.:
- 1.5KE150HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150HE3/73.pdf
- Description:
- TVS DIODE 121VWM 215VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,703
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Product details
Overview
1.5KE150HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 150 V breakdown voltage (VBR min = 143 V, max = 158 V), 128 V standoff voltage (VWM), 207 V clamping voltage 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 against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE150HE3/73 datasheet, 1.5KE150HE3/73 pinout, 1.5KE150HE3/73 application, or 1.5KE150HE3/73 equivalent, this part delivers verified AEC-Q101 qualification, RoHS-compliant matte tin-plated leads, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom surge protection design-in.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 128 V), then switches to low-impedance conduction within <1 ns when transient voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
The device is rated for 175 °C maximum junction temperature, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a +0.106 %/°C temperature coefficient of VBR, enabling predictable clamping behavior across automotive-grade thermal ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 128 V - maximum continuous working voltage before leakage exceeds 1 µA; sets safe DC operating margin |
| VC @ IPPM | 207 V at 7.2 A - clamping voltage during 10/1000 µs surge; determines protected circuit's peak stress level |
| PPPM | 1500 W - peak transient power handling capacity; enables robust protection against lightning & EFT events |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms); validates survivability against high-energy inductive kicks |
| TJ max | +175 °C - extended junction temperature rating supports under-hood and industrial ambient operation |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length; compatible with through-hole PCB assembly |
Pinout & Package
1.5KE150HE3/73 uses a 2-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. The cathode is marked by a color band on the body; polarity must be observed for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes clamping path during overvoltage |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail, CAN_H); conducts transient current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power (10/1000 µs) | Provides industry-standard surge immunity per ISO 7637-2 Pulse 5a and IEC 61000-4-5 Level 4 |
| UL 94 V-0 molded epoxy case | Meets flammability safety requirements for enclosed industrial and telecom equipment enclosures |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high-temperature/humidity bias, critical for long-life automotive modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp spikes up to 120 V. Use Value: Clamps to 207 V at 7.2 A, limiting downstream IC stress below 25 V headroom - validated for AEC-Q101 automotive qualification. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS on 4–20 mA or 0–10 V signal lines to suppress ESD and cable-coupled surges. Use Value: Sub-1 ns response time prevents latch-up in precision op-amps; 1 µA leakage at 128 V avoids signal offset errors. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection of PoE-powered Ethernet switches against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each conductor relative to ground, absorbing differential and common-mode energy. Use Value: 1500 W rating handles IEC 61000-4-5 4 kV/2 Ω combo wave; UL 94 V-0 case meets telecom safety standards. |
Use Scenario: Secondary-side DC bus protection in AC/DC adapters for smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Clamp component across bulk capacitor to suppress switch-mode ringing and external surge coupling. Use Value: 175 °C TJ max allows operation near hot transformers; RoHS/E3 compliance satisfies global regulatory requirements. |
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 | DO-214AA package (SMB), 600 W PPPM, lower IPPM (24.3 A), same VBR range (143–158 V) | Surface-mount only; unsuitable for high-power through-hole designs requiring 1500 W dissipation | Select SMBJ150A only when board space is constrained and peak surge energy is ≤600 W |
| 1.5KE150A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101), E3 suffix only (no HE3 whisker class) | Lacks automotive qualification and JESD 201 Class 2 whisker resistance; limited to industrial/commercial use | Choose 1.5KE150A-E3/54 for cost-sensitive non-automotive applications where AEC-Q101 is not required |
Compared with SMBJ150A and 1.5KE150A-E3/54, the 1.5KE150HE3/73 uniquely combines 1500 W surge capability, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance in a through-hole package - making it the only option among the three qualified for under-hood automotive deployment with full surge immunity and long-term reliability.
Availability
1.5KE150HE3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE150HE3/73 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, and protection devices with emphasis on reliability, automotive qualification, and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5KE150HE3/73 under a standard 10/1000 µs surge?
The 1.5KE150HE3/73 clamps to a maximum of 207 V at its rated peak pulse current of 7.2 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by downstream components during surge events - critical for ensuring protected ICs remain within absolute maximum ratings. The 1.5KE150HE3/73 achieves this with low incremental surge resistance and fast sub-nanosecond response.
Is the 1.5KE150HE3/73 qualified for automotive applications?
Yes, the 1.5KE150HE3/73 is AEC-Q101 qualified, as confirmed in Vishay document 88301 (Revision 09-Aug-2022), footnote (2). This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - validating its use in engine control units, body control modules, and ADAS sensor interfaces. The HE3 suffix specifically denotes AEC-Q101 compliance and JESD 201 Class 2 whisker resistance.
What does the "HE3/73" suffix mean in 1.5KE150HE3/73?
The "HE3" portion indicates RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/73" is Vishay's internal tape-and-reel packaging code denoting 750 pieces per reel in 13" diameter paper tape. This differs from "/54" (1400 pcs/reel) and confirms the part is supplied in production-ready packaging aligned with SMT and through-hole assembly lines. The 1.5KE150HE3/73 meets all JEDEC and automotive mechanical handling standards.
Can the 1.5KE150HE3/73 be used in bidirectional configurations?
No, the 1.5KE150HE3/73 is a unidirectional TVS diode, as indicated by the absence of "CA" in its part number. Bidirectional variants (e.g., 1.5KE150CA) exist in the same family but have different VBR/VC symmetry and no cathode marking. Using the 1.5KE150HE3/73 in bidirectional circuits would result in forward conduction on one polarity - potentially damaging the device or failing to protect. Always match polarity to circuit topology.
What is the maximum operating temperature for the 1.5KE150HE3/73?
The 1.5KE150HE3/73 has a maximum junction temperature (TJ) of +175 °C and an operating storage range of –55 °C to +175 °C. This rating enables reliable operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. Derating curves in the datasheet show usable power dissipation down to 0 W at 175 °C ambient when mounted on standard PCB copper, confirming thermal robustness for the 1.5KE150HE3/73.
1.5KE150HE3/73 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:
- 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
1.5KE150HE3/73 FAQ
1.How can I place an order for 1.5KE150HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150HE3/73 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 1.5KE150HE3/73 reliable?
The price and inventory of 1.5KE150HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE150HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150HE3/73?
1.5KE150HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150HE3/73 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 1.5KE150HE3/73?
For technical support, including 1.5KE150HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150HE3/73 requirements.
6.How does Aetrix verify that 1.5KE150HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150HE3/73 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 1.5KE150HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE150HE3/73?
All 1.5KE150HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150HE3/73, 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 1.5KE150HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE150HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150HE3/73 Tags
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