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Vishay General Semiconductor - Diodes Division 1.5KE180CHE3/73
- Part No.:
- 1.5KE180CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180CHE3/73.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,677
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Product details
Overview
1.5KE180CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 180 V breakdown voltage (VBR = 171–189 V at IT = 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 246 V at 6.1 A, and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the 1.5KE180CHE3/73 datasheet, 1.5KE180CHE3/73 pinout, 1.5KE180CHE3/73 application, or 1.5KE180CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and real-world clamping behavior under transient stress.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on DC rails, with a maximum reverse standoff voltage (VWM) of 154 V and leakage current ≤1.0 µA at that voltage.
The device sustains non-repetitive 8.3 ms half-sine forward surge current up to 200 A and exhibits a typical forward voltage of 5.0 V at 100 A - critical for evaluating conduction losses during high-current transients in automotive and industrial power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 154 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 246 V at 6.1 A - clamped voltage during full 1500 W transient, limiting downstream component stress |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform, enabling robust lightning/surge immunity |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance, informing heatsink requirements for sustained duty |
| TJ max | +175 °C - maximum junction temperature, supporting operation in under-hood or enclosed industrial environments |
| IFSM | 200 A - peak forward surge rating (8.3 ms half-sine), validating survivability in high-energy fault events |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-side reference; conducts during positive transients when cathode is biased above anode |
| Cathode | Clamping node / protected rail connection | Connected to the line being protected (e.g., 12 V supply); clamps to ~246 V during 6.1 A surge |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable breakdown characteristics and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) without derating in compact layout |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics where qualification traceability is mandatory |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving system-level ESD robustness |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment enclosures |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V DC input stage of programmable logic controllers against load dump and inductive switching surges. IC Role / Device Role: Unidirectional TVS placed between input rail and ground to clamp transients above 154 V. Use Value: Limits peak voltage to 246 V during 6.1 A surge, preventing damage to upstream rectifiers and downstream DC-DC controllers in EN 61000-4-5 compliant designs. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from battery voltage spikes during alternator load dump. IC Role / Device Role: Cathode-connected to LIN line, anode to ground - clamps negative-going transients and limits positive excursions. Use Value: Withstand 200 A 8.3 ms surge and operate up to +175 °C, meeting AEC-Q101 requirements for under-dash module placement. |
| Telecom AC/DC Front-End | MOSFET Gate Driver Protection |
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role: Standoff-rated TVS on isolated DC output rail, triggered only during >154 V events. Use Value: Clamps at 246 V with <1 ns response, preserving integrity of PoE PD controllers and Ethernet PHYs without adding capacitance-related signal distortion. | Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFET drivers subjected to Miller-induced voltage spikes. IC Role / Device Role: Placed between gate and source to clamp dv/dt-induced overshoot during fast switching. Use Value: Low incremental resistance ensures rapid clamping below 246 V, avoiding false turn-on while sustaining 1500 W pulses without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A-E3/52 | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), VC = 291 V @ 2.1 A | Not suitable for 1500 W surge events; limited to space-constrained, lower-energy applications | Select only if board area is critical and surge energy is ≤600 W; verify thermal margin due to higher RθJA |
| 1.5KE180A-E3/73 | Same electrical specs but commercial-grade (non-AEC-Q101); identical DO-201AD package and pinout | Lacks automotive qualification documentation and traceability; unsuitable for OEM automotive BOMs | Use where AEC-Q101 is not required - e.g., industrial controls with internal surge testing only |
Compared with 1.5KE180CHE3/73, SMBJ180A-E3/52 trades peak power and ruggedness for footprint reduction, while 1.5KE180A-E3/73 offers identical protection performance without automotive qualification - making the HE3/73 variant essential for Tier 1 automotive supply chains requiring auditable AEC-Q101 compliance.
Availability
1.5KE180CHE3/73 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom infrastructure, and MOSFET driver circuits requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for 1.5KE180CHE3/73 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, power handling, and qualification rigor.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be mitigated via proven 1500 W surge capability and AEC-Q101 validation.
FAQ
What is the breakdown voltage tolerance for 1.5KE180CHE3/73?
The 1.5KE180CHE3/73 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 in precision overvoltage protection circuits and aligns with JEDEC standards for the 1.5KE series. The 1.5KE180CHE3/73 maintains this specification across its full operating temperature range.
Is 1.5KE180CHE3/73 AEC-Q101 qualified?
Yes, the 1.5KE180CHE3/73 is AEC-Q101 qualified, as confirmed by Vishay's documentation for the HE3 suffix variants covering 1.5KE6.8AHE3_B through 1.5KE220AHE3_B. This qualification includes stress testing for temperature cycling, humidity bias, and high-temperature operating life - making the 1.5KE180CHE3/73 suitable for automotive powertrain and body electronics where component reliability is mission-critical.
What is the clamping voltage of 1.5KE180CHE3/73 at its rated peak pulse current?
The 1.5KE180CHE3/73 clamps to a maximum of 246 V at its rated peak pulse current of 6.1 A (10/1000 µs waveform). This value is measured per standard test conditions and reflects the actual voltage seen by downstream components during worst-case surge events. The 1.5KE180CHE3/73 achieves this with low incremental resistance, minimizing overshoot beyond the clamping threshold.
Can 1.5KE180CHE3/73 be used in bidirectional configurations?
No, the 1.5KE180CHE3/73 is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). Bidirectional versions in the 1.5KE family end in "CA" and are only available up to 1.5KE220CA. Using the 1.5KE180CHE3/73 in bidirectional applications would result in improper clamping during negative transients; for symmetrical protection, select 1.5KE180CAHE3/73 instead - which is not offered in this specific part number.
What is the thermal resistance of 1.5KE180CHE3/73, and how does it affect PCB layout?
The 1.5KE180CHE3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W under standard JEDEC test conditions. This value assumes minimal copper pour; for reliable operation at elevated ambient temperatures or repeated surges, PCB layout must include ≥0.5 in² (320 mm²) of 2-oz copper connected to both leads to reduce effective RθJA. The 1.5KE180CHE3/73 thermal performance directly impacts surge repetition rate capability and long-term reliability.
1.5KE180CHE3/73 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180CHE3/73 FAQ
1.How can I place an order for 1.5KE180CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180CHE3/73 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 1.5KE180CHE3/73 reliable?
The price and inventory of 1.5KE180CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE180CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180CHE3/73?
1.5KE180CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180CHE3/73 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 1.5KE180CHE3/73?
For technical support, including 1.5KE180CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE180CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180CHE3/73 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 1.5KE180CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE180CHE3/73?
All 1.5KE180CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180CHE3/73, 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 1.5KE180CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE180CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180CHE3/73 Tags
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