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Vishay General Semiconductor - Diodes Division 1.5KE180CAHE3_B/C
- Part No.:
- 1.5KE180CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180CAHE3_B/C.pdf
- Description:
- 1.5KW,180V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,743
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Product details
Overview
1.5KE180CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 180 V breakdown voltage (VBR = 171–189 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 246 V at 6.1 A, 1.5KE package, and AEC-Q101 qualification - deployed in automotive sensor interfaces and industrial power supply rails.
For engineers reviewing the 1.5KE180CAHE3_B/C datasheet, 1.5KE180CAHE3_B/C pinout, 1.5KE180CAHE3_B/C application, or 1.5KE180CAHE3_B/C equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, JEDEC 1.5KE package details, thermal resistance (RθJL = 15.4 °C/W), and direct alternatives with documented parameter differences.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage tolerance ±5% and temperature coefficient of +0.108 %/°C. Its glass-passivated junction enables sub-nanosecond response time (<1 ns) and low incremental surge resistance - critical for protecting MOSFET gates and microcontroller I/O against lightning-induced transients and inductive switching spikes.
The device sustains 1500 W peak pulse power under 10/1000 µs waveform at 0.01% duty cycle, derates linearly above 25 °C ambient, and maintains stable clamping up to 175 °C junction temperature. Standoff voltage is 154 V, reverse leakage ≤1.0 µA at VWM, and forward voltage is 5.0 V at 100 A (per spec note for VBR ≥250 V devices - not applicable here; 1.5KE180CA falls below that threshold and uses 3.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V - ensures reliable conduction onset within tight tolerance during overvoltage events |
| VWM | 154 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 246 V at 6.1 A - clamping voltage limits downstream component stress during 1500 W surge |
| PPPM | 1500 W - peak pulse power handling for 10/1000 µs waveform, enabling robust lightning surge immunity |
| TJ max | +175 °C - supports operation in under-hood automotive and high-temperature industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance allows effective heat dissipation through PCB copper |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
1.5KE180CAHE3_B/C uses the standard axial-leaded Case Style 1.5KE package (JEDEC DO-201AD), with no polarity marking - consistent with bidirectional construction. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No cathode band; identical clamping behavior in either direction - simplifies layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable long-term leakage performance under humidity and thermal stress |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 (4 kV line-to-line) without external series impedance |
| AEC-Q101 qualified (HE3_B suffix) | Validated for automotive applications including engine control units and ADAS sensor modules |
| RoHS-compliant, matte tin leads | Ensures solderability and whisker resistance (JESD 201 Class 2) for high-reliability assembly |
| UL 94 V-0 molded epoxy case | Provides flame-retardant mechanical encapsulation suitable for enclosed industrial enclosures |
Applications
| Automotive Sensor Protection | Industrial Power Supply Input |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in 12 V/24 V systems. IC Role / Device Role: Bidirectional clamping element placed across differential signal lines or supply rails. Use Value: Limits voltage excursion to ≤246 V during 6.1 A surge, preserving signal integrity and preventing latch-up in connected MCUs. |
Use Scenario: Safeguarding AC-DC and DC-DC converter inputs against surges from grid switching, motor back-EMF, and nearby lightning strikes. IC Role / Device Role: Primary overvoltage clamp on bulk input stage before rectification or regulation. Use Value: Absorbs 1500 W transient energy without degradation, maintaining system uptime in factory automation and renewable energy inverters. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from induced surges on outdoor cabling in residential gateways and base stations. IC Role / Device Role: Secondary-level protection aligned with IEC 61000-4-5, placed after gas discharge tube (GDT) primary stage. Use Value: Fast clamping (<1 ns) prevents overshoot past IC absolute maximum ratings, reducing field failure rates in unshielded deployments. |
Use Scenario: Suppressing commutation spikes from universal motors and BLDC drivers in washing machines, HVAC blowers, and power tools. IC Role / Device Role: Snubber-connected TVS across motor terminals or H-bridge outputs. Use Value: Withstands repetitive 10/1000 µs pulses at 0.01% duty cycle, extending MOSFET lifetime and eliminating false overvoltage shutdowns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | Lower PPPM (600 W), smaller SMB package (vs. 1.5KE axial), higher VC (292 V @ 2.1 A) | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 without parallel staging | Select when board space is constrained and surge threat level is ≤2 kV; verify thermal margin due to higher RθJA. |
| 1.5KE180AHE3_B/C | Unidirectional version - same VBR, VC, and PPPM, but includes cathode band and asymmetric conduction | Requires correct polarity placement; used where DC bias exists and reverse conduction must be blocked | Choose only if circuit topology mandates unidirectional clamping (e.g., DC power rail with defined ground reference). |
Compared with 1.5KE180CAHE3_B/C, SMBJ180CA trades surge capacity for compactness, while 1.5KE180AHE3_B/C retains identical electrical performance but enforces polarity-aware layout - making the original bidirectional variant optimal for AC-coupled or floating signal paths where orientation independence is essential.
Availability
1.5KE180CAHE3_B/C is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power supply input stages, and telecom line interface designs requiring stable component supply, AEC-Q101 compliance, and 1500 W surge resilience.
Supply support for 1.5KE180CAHE3_B/C 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, optoelectronics, and passive components for demanding industrial and automotive applications.
The 1.5KE family was engineered specifically for high-power transient suppression in harsh environments - delivering consistent clamping performance, AEC-Q101 validation, and robust thermal design for under-hood and factory-floor deployment.
FAQ
What is the breakdown voltage tolerance for 1.5KE180CAHE3_B/C?
The 1.5KE180CAHE3_B/C has a specified breakdown voltage range of 171 V to 189 V at test current IT = 1.0 mA, representing a ±5% tolerance around the nominal 180 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for meeting IEC 61000-4-5 immunity requirements in automotive and industrial systems using the 1.5KE180CAHE3_B/C.
Is 1.5KE180CAHE3_B/C suitable for automotive applications?
Yes - the HE3_B suffix confirms AEC-Q101 qualification for 1.5KE180CAHE3_B/C, covering stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD. It is widely deployed in automotive sensor modules, body control units, and infotainment power supplies where bidirectional surge protection up to 1500 W is required. The 1.5KE180CAHE3_B/C meets ISO 7637-2 and ISO 16750-2 surge test profiles.
How does the clamping voltage of 1.5KE180CAHE3_B/C compare to its breakdown voltage?
The 1.5KE180CAHE3_B/C clamps at 246 V when subjected to its peak pulse current of 6.1 A (10/1000 µs waveform), which is 36.7% above its minimum breakdown voltage of 171 V. This incremental clamping voltage (ΔVC = 75 V) reflects low dynamic impedance and ensures protected circuits remain below safe operating limits during surge events - a key advantage of the 1.5KE180CAHE3_B/C over varistors or polymer-based suppressors.
What is the thermal resistance of 1.5KE180CAHE3_B/C, and why does it matter?
The 1.5KE180CAHE3_B/C has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length. This low value enables efficient heat transfer from the silicon die to the PCB copper pour or heatsink, preventing thermal runaway during repetitive surge events. Designers use this parameter to size copper area and verify safe operation at elevated ambient temperatures - especially important in sealed automotive ECUs where the 1.5KE180CAHE3_B/C is commonly applied.
Does 1.5KE180CAHE3_B/C have polarity markings?
No - the 1.5KE180CAHE3_B/C is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction provides identical clamping characteristics in both directions, eliminating orientation-dependent installation errors. This distinguishes it from unidirectional variants like 1.5KE180AHE3_B/C, which feature a visible cathode band and conduct only in reverse bias - a critical distinction when selecting or placing the 1.5KE180CAHE3_B/C in AC-coupled or floating circuits.
1.5KE180CAHE3_B/C 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180CAHE3_B/C FAQ
1.How can I place an order for 1.5KE180CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180CAHE3_B/C 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 1.5KE180CAHE3_B/C reliable?
The price and inventory of 1.5KE180CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE180CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180CAHE3_B/C?
1.5KE180CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180CAHE3_B/C 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 1.5KE180CAHE3_B/C?
For technical support, including 1.5KE180CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE180CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE180CAHE3_B/C 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 1.5KE180CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE180CAHE3_B/C?
All 1.5KE180CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180CAHE3_B/C, 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 1.5KE180CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE180CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180CAHE3_B/C Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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