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Vishay General Semiconductor - Diodes Division 1.5KE180-E3/73
- Part No.:
- 1.5KE180-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180-E3/73.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,648
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Product details
Overview
1.5KE180-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in power rails and signal lines. It features a 171 V to 189 V breakdown voltage (VBR) at 1 mA, 154 V maximum standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), 6.1 A peak pulse current (IPPM), and clamps transients to ≤246 V. It is used in industrial power supplies and automotive ECUs to protect MOSFETs and microcontrollers from lightning-induced surges.
For engineers reviewing the 1.5KE180-E3/73 datasheet, 1.5KE180-E3/73 pinout, 1.5KE180-E3/73 application, or 1.5KE180-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package details, thermal derating behavior, clamping performance curves, and direct alternatives with documented voltage and surge-current trade-offs.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds its VBR range (171–189 V). Its glass-passivated junction enables sub-nanosecond response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
It is rated for 175 °C maximum junction temperature, exhibits 75 °C/W junction-to-ambient thermal resistance, and supports 200 A non-repetitive forward surge current (8.3 ms half-sine). The E3 suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1 mA - defines precise clamping activation threshold for overvoltage events |
| VWM | 154 V - maximum continuous reverse operating voltage before leakage rises above 1 µA |
| IPPM | 6.1 A (10/1000 µs) - peak transient current it safely diverts without failure |
| VC | ≤246 V at IPPM - clamped voltage seen by protected circuit during full-rated surge |
| PPPM | 1500 W - peak pulse power handling capability per industry-standard waveform |
| TJ max. | +175 °C - enables reliable operation in under-hood automotive and high-temperature industrial environments |
| RθJA | 75 °C/W - determines required PCB copper area or heatsinking for sustained power dissipation |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads. Dimensions: 5.3 mm diameter × 9.5 mm length; lead spacing 7.2 mm; weight 0.968 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive transients in bidirectional use (not applicable here) |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connected to higher-potential rail; conducts when VREV > VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse rating (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V/48 V systems |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage-critical for MOSFET gate protection |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and UL 94 V-0 flammability for safety-critical designs |
| 175 °C junction rating | Enables placement near heat sources (e.g., power inductors, motor drivers) without derating penalties |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 48 V DC input stage exposed to load-dump transients up to 60 V and ISO 7637-2 Pulse 5a. IC Role / Device Role: Primary shunt clamp on main rail, placed upstream of DC-DC converter input. Use Value: Limits rail voltage to ≤246 V during 1500 W surges, preventing damage to buck controller and gate drivers. |
Use Scenario: LIN bus line protection against ESD and coupled noise from adjacent high-current solenoid switching. IC Role / Device Role: Unidirectional TVS on LIN TX/RX line referenced to battery ground. Use Value: Clamps fast-rising transients while maintaining <1 µA leakage at 154 V standby, preserving bus integrity. |
| Telecom Remote Radio Unit (RRU) Power Interface | Renewable Energy Inverter DC Link |
Use Scenario: Outdoor base station power entry subjected to induced lightning surges on -48 V telecom supply. IC Role / Device Role: First-stage protector before bulk capacitance and upstream of hot-swap controller. Use Value: Absorbs 10/1000 µs surges up to 6.1 A without degradation, validated per Telcordia GR-1089-CORE. |
Use Scenario: PV string combiner box protecting MPPT controller inputs from lightning-induced common-mode spikes. IC Role / Device Role: Unidirectional clamp between PV+ and ground, rated for 1500 W bipolar surge energy. Use Value: Maintains 154 V standoff during normal operation while clamping 171–189 V breakdown to safeguard SiC gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Lower PPPM (600 W), smaller SMB package (3.6 mm × 4.5 mm), VBR = 189–210 V, VC = 275 V at 2.2 A | Not suitable for 1500 W surges; limited to board space-constrained, lower-energy applications | Select only if system-level testing confirms 600 W clamping meets IEC 61000-4-5 requirements and layout allows SMB footprint. |
| 1.5KE180AHE3_B | Identical electrical specs but AEC-Q101 qualified, HE3 suffix indicates JESD 201 Class 2 whisker resistance | Required for automotive under-hood modules where qualification to AEC-Q101 is mandatory | Choose 1.5KE180AHE3_B for automotive OEM production; 1.5KE180-E3/73 remains valid for industrial/commercial use with same performance. |
Compared with SMBJ170A, 1.5KE180-E3/73 delivers 2.5× higher surge power handling and proven reliability in high-temperature chassis-mount applications; compared with 1.5KE180AHE3_B, it offers identical clamping and thermal performance at lower cost where AEC-Q101 is not mandated.
Availability
1.5KE180-E3/73 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom infrastructure, and renewable energy inverters requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE180-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, MOSFETs, and protection devices with emphasis on high-reliability, high-power, and automotive-grade solutions.
The 1.5KE series was engineered for robust, high-energy transient suppression in harsh environments-targeting industrial automation, transportation, and infrastructure where failure modes must be mitigated through proven silicon ruggedness and JEDEC-standard packaging.
FAQ
What is the breakdown voltage tolerance of the 1.5KE180-E3/73?
The 1.5KE180-E3/73 has a specified breakdown voltage range of 171 V to 189 V at 1 mA test current, representing ±5.6% tolerance around the nominal 180 V rating. This tight VBR window ensures predictable clamping onset across manufacturing lots and temperature ranges, critical for coordinating with downstream overvoltage lockout thresholds in protected circuits.
Does the 1.5KE180-E3/73 meet automotive qualification standards?
The 1.5KE180-E3/73 is RoHS-compliant and JESD 201 Class 1A whisker-tested but is not AEC-Q101 qualified. For automotive applications requiring formal qualification, the functionally identical 1.5KE180AHE3_B variant should be selected-it shares all electrical and thermal specifications while adding AEC-Q101 certification for under-hood deployment.
How does the clamping voltage of the 1.5KE180-E3/73 compare to its breakdown voltage?
The 1.5KE180-E3/73 clamps transients to ≤246 V at its rated 6.1 A peak pulse current (10/1000 µs), which is approximately 37% above its minimum breakdown voltage of 171 V. This VC–VBR margin reflects low incremental surge resistance and ensures protected components see minimal overvoltage during worst-case surge events.
Can the 1.5KE180-E3/73 be used in bidirectional configurations?
No-the 1.5KE180-E3/73 is a unidirectional TVS diode, indicated by the "A" suffix. Bidirectional variants use the "CA" suffix (e.g., 1.5KE180CA). Using the 1.5KE180-E3/73 in bidirectional applications would result in forward conduction during negative transients, causing failure. Always match polarity suffix to system topology.
What is the thermal resistance and how does it affect PCB layout for the 1.5KE180-E3/73?
The 1.5KE180-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. To maintain TJ ≤175 °C at 6.5 W steady-state dissipation, the PCB must provide ≥10 cm² of 2-oz copper pour connected to both leads. Layouts with insufficient copper will exceed thermal limits during repetitive surge events, accelerating parametric drift.
1.5KE180-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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
1.5KE180-E3/73 FAQ
1.How can I place an order for 1.5KE180-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180-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 1.5KE180-E3/73 reliable?
The price and inventory of 1.5KE180-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 1.5KE180-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE180-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180-E3/73?
1.5KE180-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180-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 1.5KE180-E3/73?
For technical support, including 1.5KE180-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180-E3/73 requirements.
6.How does Aetrix verify that 1.5KE180-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180-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 1.5KE180-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE180-E3/73?
All 1.5KE180-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180-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 1.5KE180-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE180-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180-E3/73 Tags
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