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Vishay General Semiconductor - Diodes Division 1.5KE180HE3/73
- Part No.:
- 1.5KE180HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180HE3/73.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,814
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Product details
Overview
1.5KE180HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 180 V breakdown voltage (VBR = 171–189 V at IT = 1 mA), 154 V maximum working voltage (VWM), 246 V clamping voltage (VC) at 6.1 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 1.5KE180HE3/73 datasheet, 1.5KE180HE3/73 pinout, 1.5KE180HE3/73 application, or 1.5KE180HE3/73 equivalent, this part delivers AEC-Q101-qualified surge resilience, low incremental clamping resistance, fast sub-nanosecond response, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering and high-reliability embedded systems.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology to achieve stable, repeatable breakdown behavior under transient stress. Its 1500 W peak pulse power rating is defined per 10/1000 µs waveform with 0.01% duty cycle, and thermal performance is characterized by RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device exhibits a temperature coefficient of VBR = +0.108 %/°C and maintains ≤1.0 µA reverse leakage at VWM, supporting reliable operation across –55 °C to +175 °C junction temperature range. It is rated for 200 A non-repetitive forward surge (8.3 ms half-sine) and complies with UL 497B recognition (QVGQ2) and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1 mA - ensures precise, repeatable avalanche initiation for predictable clamping onset |
| VWM | 154 V - maximum continuous DC or RMS operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 246 V at 6.1 A - limits downstream voltage during 10/1000 µs transients to protect 200 V-rated components |
| PPPM | 1500 W - handles high-energy surges (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| IFSM | 200 A (8.3 ms half-sine) - withstands inrush and load-dump events in automotive 12 V/24 V systems |
| TJ range | –55 °C to +175 °C - supports under-hood and industrial ambient environments without derating loss |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements (HTOL, TC, HTRB, etc.) |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body meeting UL 94 V-0 flammability rating; cathode indicated by color band on lead end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side reference | Enables unidirectional clamping from cathode to anode during positive transients; must be tied to lowest potential node |
| Cathode | Current exit point in forward bias; marked with color band; connected to line under protection | Serves as the high-side transient sink - absorbs surge energy when line voltage exceeds VWM + dynamic margin |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<1 µA), and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Provides immunity against severe transients including lightning-induced surges (IEC 61000-4-5 Level 4) and EFT bursts |
| Sub-nanosecond response time | Clamps within <1 ns - faster than MOVs or polymer-based suppressors - preserving signal integrity in high-speed interfaces |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| Matte tin plating (J-STD-002 compliant) | Guarantees consistent wetting and intermetallic formation during reflow or wave soldering; meets JESD 201 Class 2 whisker resistance |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in engine control units against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and regulator input to clamp transients above 154 V. Use Value: Limits peak voltage to 246 V during 1500 W surges, preventing damage to LDOs and microcontrollers rated for 200 V absolute max. | Use Scenario: Shielding analog input channels (4–20 mA, 0–10 V) in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end TVS on each channel, grounded to system earth, clamping common-mode transients before signal conditioning. Use Value: Maintains signal fidelity with <1 µA leakage at 154 V, enabling accurate low-current measurement without offset drift. |
| Telecom Power Feeds | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding PoE midspan injectors and PSE controllers from Ethernet cable ESD and lightning coupling. IC Role / Device Role / Timing Role: Line-to-ground TVS on DC output side of isolation transformer, absorbing differential-mode surges up to 1500 W. Use Value: Clamps within 1 ns to prevent latch-up in IEEE 802.3af/at controller ICs while surviving repeated 10/1000 µs pulses. | Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFETs driven by isolated gate drivers in motor inverters. IC Role / Device Role / Timing Role: Cathode tied to gate, anode to source - clamps negative-going spikes caused by Miller turn-off oscillation. Use Value: Withstands –200 A surge (8.3 ms) and clamps to ≤246 V, protecting 200 V-rated gate oxides without adding capacitance to critical timing nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC (292 V @ 2.1 A) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or lightning-level surges | Select only when board space is constrained and surge threat level is limited to IEC 61000-4-4 EFT (±4 kV) |
| 1.5KE180A-E3/54 | Same electrical specs, but commercial-grade (non-AEC-Q101); identical DO-201AD package and pinout | Not qualified for automotive use; lacks HTOL/TC validation; may exhibit higher parametric drift over lifetime | Acceptable for industrial or consumer applications where AEC-Q101 is not mandated |
Compared with 1.5KE180HE3/73, SMBJ180A trades surge capacity and automotive qualification for compactness, while 1.5KE180A-E3/54 offers identical protection performance without AEC-Q101 assurance - making the HE3/73 the sole choice for mission-critical automotive deployments requiring traceable qualification evidence.
Availability
1.5KE180HE3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom power feed hardening requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance verification.
Supply support for 1.5KE180HE3/73 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, power handling, and automotive-grade qualification.
The 1.5KE family was engineered specifically for high-energy transient suppression in harsh environments - delivering 1500 W pulse capability, AEC-Q101 variants, and UL 497B recognition to meet stringent automotive, industrial, and telecom surge immunity standards.
FAQ
What is the breakdown voltage tolerance for 1.5KE180HE3/73?
The 1.5KE180HE3/73 has a specified breakdown voltage range of 171 V to 189 V at test current IT = 1 mA, representing a ±5% tolerance around the nominal 180 V rating. This tight tolerance ensures consistent clamping behavior across production lots and enables precise coordination with downstream overvoltage protection thresholds in systems like automotive ECUs and industrial power supplies. The value is measured per JEDEC standard and confirmed in Vishay's 88301 datasheet revision 09-Aug-2022.
Is 1.5KE180HE3/73 suitable for bidirectional transient suppression?
No, 1.5KE180HE3/73 is a unidirectional TVS diode and is not rated for bidirectional operation. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE180CA), whereas the "HE3/73" suffix denotes AEC-Q101-qualified unidirectional construction. Using 1.5KE180HE3/73 in a bidirectional configuration would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify polarity marking (cathode band) before installation.
What does the "HE3/73" suffix mean on 1.5KE180HE3/73?
The "HE3/73" suffix on 1.5KE180HE3/73 indicates RoHS-compliant construction with AEC-Q101 qualification (H), matte tin plating meeting JESD 201 Class 2 whisker resistance (E3), and packaging in 13" paper tape and reel (73). This distinguishes it from commercial-grade variants like 1.5KE180A-E3/54 and confirms compliance with automotive reliability testing including HTOL, temperature cycling, and biased HTRB. The full part number 1.5KE180HE3/73 is traceable to Vishay's ordering documentation and UL file E136766.
Can 1.5KE180HE3/73 be used in parallel to increase surge current handling?
While 1.5KE180HE3/73 can be placed in parallel to distribute surge current, Vishay does not recommend it without external balancing - due to VBR mismatch causing current hogging and premature failure. If higher IPPM is required, select a single higher-power device (e.g., 3.0KE180A) or use matched, laser-trimmed arrays. For 1.5KE180HE3/73 specifically, its 6.1 A IPPM at 246 V clamping is optimized for standalone use in 24 V/48 V systems per ISO 7637-2 and IEC 61000-4-5 requirements.
What is the maximum allowable lead temperature during soldering for 1.5KE180HE3/73?
The maximum allowable lead temperature for 1.5KE180HE3/73 is 275 °C for up to 10 seconds, per JESD 22-B106. This applies to dip soldering only; for reflow, follow JEDEC J-STD-020 profile with peak temperature ≤260 °C and time above liquidus ≤60 s. The device's matte tin plating and glass-passivated junction ensure robustness under these conditions, and its qualification includes JESD 201 Class 2 whisker testing - confirming metallurgical stability post-soldering. Always verify thermal profiles using actual board mass and layout.
1.5KE180HE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180HE3/73 FAQ
1.How can I place an order for 1.5KE180HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180HE3/73 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 1.5KE180HE3/73 reliable?
The price and inventory of 1.5KE180HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE180HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180HE3/73?
1.5KE180HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180HE3/73 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 1.5KE180HE3/73?
For technical support, including 1.5KE180HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180HE3/73 requirements.
6.How does Aetrix verify that 1.5KE180HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180HE3/73 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 1.5KE180HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE180HE3/73?
All 1.5KE180HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180HE3/73, 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 1.5KE180HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE180HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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