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Vishay General Semiconductor - Diodes Division 1.5KE180HE3/54
- Part No.:
- 1.5KE180HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180HE3/54.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,115
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Product details
Overview
1.5KE180HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 180 V breakdown voltage (VBR = 171–189 V at 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.
For engineers reviewing the 1.5KE180HE3/54 datasheet, 1.5KE180HE3/54 pinout, 1.5KE180HE3/54 application, or 1.5KE180HE3/54 equivalent, this part delivers AEC-Q101-qualified surge immunity, glass-passivated junction reliability, and RoHS-compliant matte tin leads - critical for automotive ECU power rail protection, telecom DC input stages, and industrial motor drive control boards requiring stable transient suppression under repetitive surge conditions.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (154 V), then avalanches sharply at VBR to clamp transients within nanoseconds. Its 1500 W peak pulse power rating is validated per JEDEC-standard 10/1000 µs waveform with 0.01% duty cycle, and thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device uses a molded epoxy case (Case Style 1.5KE) with cathode band marking, supports 200 A non-repetitive forward surge (IFSM), and exhibits low incremental surge resistance - enabling effective suppression of lightning-induced surges (per R.E.A. P.E. 60) and inductive switching spikes in DC systems up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage detection |
| VWM | 154 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 246 V at 6.1 A - clamping voltage during full 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, enabling protection against severe lightning surges |
| IFSM | 200 A - 8.3 ms half-sine surge current rating, supporting high-energy inductive load switching events |
| TJ max | +175 °C - extended junction temperature range allows operation in under-hood automotive and industrial enclosures |
| Package | Case Style 1.5KE - axial-lead DO-201AD package with 0.375" lead length, UL 94 V-0 compliant molding |
Pinout & Package
1.5KE180HE3/54 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package. The cathode is marked by a color band on one end; the unmarked end is the anode. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal during forward conduction or clamping mode | Connected to protected circuit ground or lower-potential rail; enables bidirectional clamping when paired with complementary device |
| Cathode (banded end) | Current exit terminal during reverse-biased clamping | Connected to line being protected (e.g., +12 V rail); avalanche conduction diverts surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics with zero defect requirements |
| 1500 W peak pulse power | Handles high-energy transients from ISO 7637-2 Pulse 5a/b without degradation or failure |
| Sub-nanosecond response time | Clamps transients within ~1 ns - faster than MOVs or GDTs - preserving signal integrity in high-speed circuits |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability for safety-critical deployments |
Applications
| Automotive Power Rail Protection | Industrial DC Input Stage |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator surge events per ISO 7637-2. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between supply rail and chassis ground, clamping spikes above 154 V. Use Value: Limits rail voltage to ≤246 V during 1500 W surges, preventing damage to microcontrollers and CAN transceivers. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V DC inputs against field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff protector on terminal block side of optocoupler input stage. Use Value: Blocks >154 V transients while maintaining <1 µA leakage at rated voltage, ensuring clean digital signal detection. |
| Telecom DC Power Entry | Sensor Signal Line Protection |
Use Scenario: Front-end protection for PoE-powered network switches and base station remote radio units. IC Role / Device Role / Timing Role: Primary surge clamp on -48 V DC input before DC/DC converter stage. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W without parameter drift, meeting GR-1089-CORE requirements. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) shunt protector on 4–20 mA loop output line. Use Value: Clamps ESD and cable discharge events to ≤246 V without distorting milliamp-level signals or adding offset error. |
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 | DO-214AA package, 180 V VBR, 200 W PPPM, 10x lower peak power rating | Surface-mount only; suited for space-constrained PCBs but insufficient for ISO 7637-2 Pulse 5 | Select SMBJ180A only for low-energy ESD protection where board area is critical and surge energy ≤200 W |
| 1.5KE180A-E3/54 | Same electrical specs and DO-201AD package, but commercial-grade (non-AEC-Q101 qualified) | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle subsystems | Choose 1.5KE180A-E3/54 for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated |
Compared with SMBJ180A and 1.5KE180A-E3/54, the 1.5KE180HE3/54 uniquely combines AEC-Q101 qualification, 1500 W surge capability, and axial-leaded through-hole mounting - making it the only option among the three suitable for automotive load-dump protection without derating or parallel staging.
Availability
1.5KE180HE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC power inputs, and telecom DC power entry points requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE180HE3/54 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive environments.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - delivering consistent clamping performance across temperature, lifetime, and surge repetition - with emphasis on automotive, telecom infrastructure, and industrial power system resilience.
FAQ
What is the clamping voltage of the 1.5KE180HE3/54 under full-rated surge conditions?
The 1.5KE180HE3/54 has a maximum clamping voltage (VC) of 246 V at 6.1 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value ensures downstream components see no more than 246 V during a full 1500 W transient event, directly supporting design margin calculations for 24 V and 48 V systems. The 1.5KE180HE3/54 maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is the 1.5KE180HE3/54 qualified for automotive applications?
Yes, the 1.5KE180HE3/54 is AEC-Q101 qualified, as confirmed in Vishay document 88301 (Revision 09-Aug-2022), footnote (2). This qualification covers the full 1.5KE6.8AHE3_B to 1.5KE220AHE3_B family, including the 1.5KE180HE3/54 variant. It is approved for use in engine control modules, body control units, and other automotive subsystems requiring validated reliability under thermal cycling, humidity, and mechanical shock.
What does the "HE3/54" suffix indicate in 1.5KE180HE3/54?
The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification with JESD 201 Class 2 whisker resistance; "/54" specifies the preferred packaging code - 13" diameter paper tape and reel containing 1400 units. This matches Vishay's ordering information table, where "54" corresponds to the standard reel quantity and delivery format for the 1.5KE series. The 1.5KE180HE3/54 is supplied in this configuration for automated SMT placement compatibility despite its axial-leaded form factor.
How does the 1.5KE180HE3/54 differ from the standard 1.5KE180A?
The 1.5KE180HE3/54 differs from the base 1.5KE180A in three key ways: it carries the HE3 suffix confirming AEC-Q101 qualification and Class 2 whisker resistance, uses matte tin plating compliant with J-STD-002, and is supplied in 1400-unit reels (code "54"). Electrically and dimensionally, both share identical VBR, VWM, VC, and DO-201AD package - but only the 1.5KE180HE3/54 meets automotive reliability standards required for Tier 1 supplier BOMs.
Can the 1.5KE180HE3/54 be used in bidirectional configurations?
No, the 1.5KE180HE3/54 is strictly unidirectional, as indicated by the "A" suffix (not "CA"). Bidirectional variants in the 1.5KE family only extend up to 1.5KE220CA; 1.5KE180CA exists, but 1.5KE180HE3/54 is not offered in a bidirectional version. For symmetrical AC-line protection, engineers must select a CA-suffixed part such as 1.5KE180CAHE3/54 - which has different VBR (171–189 V), VWM (154 V), and clamping behavior in both polarities.
1.5KE180HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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
1.5KE180HE3/54 FAQ
1.How can I place an order for 1.5KE180HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180HE3/54 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 1.5KE180HE3/54 reliable?
The price and inventory of 1.5KE180HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE180HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180HE3/54?
1.5KE180HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180HE3/54 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 1.5KE180HE3/54?
For technical support, including 1.5KE180HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180HE3/54 requirements.
6.How does Aetrix verify that 1.5KE180HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180HE3/54 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 1.5KE180HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE180HE3/54?
All 1.5KE180HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180HE3/54, 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 1.5KE180HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE180HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180HE3/54 Tags
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