My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE180CAHE3/51
- Part No.:
- 1.5KE180CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180CAHE3/51.pdf
- Description:
- TVS DIODE 154VWM 246VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,473
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE180CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 180 V breakdown voltage (VBR min/max = 171 V / 189 V), 154 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), clamping voltage of 246 V at 6.1 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5KE180CAHE3/51 datasheet, 1.5KE180CAHE3/51 pinout, 1.5KE180CAHE3/51 application, or 1.5KE180CAHE3/51 equivalent, this device serves as a robust, glass-passivated, RoHS-compliant TVS for protecting MOSFETs, sensor interfaces, and DC power rails against lightning-induced transients, inductive switching spikes, and ESD events in industrial and automotive systems.
Technical Context
This bi-directional TVS operates symmetrically in both polarities with identical electrical characteristics - no cathode marking, no polarity dependency. Its silicon junction is glass passivated for stable leakage and long-term reliability under repetitive surge stress.
It delivers 1500 W peak pulse power per 10/1000 µs waveform at 0.01% duty cycle, with low incremental surge resistance and sub-nanosecond response time (<1 ns). Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling effective heat dissipation through leads in PCB-mounted applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1.0 mA test current - defines reliable conduction onset threshold for transient clamping |
| 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 surge, limiting downstream component stress |
| PPPM | 1500 W (10/1000 µs waveform) - peak transient energy handling capacity without failure |
| TJ max | +175 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports functional safety-critical designs |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package, 0.375" lead length, UL 94 V-0 molded epoxy body |
Pinout & Package
1.5KE180CAHE3/51 uses a bi-directional axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking - both terminals are functionally identical. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No polarity - connects across protected line and ground (or between differential lines) to clamp overvoltage in either direction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable reverse leakage (<1.0 µA at VWM) and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy surges common in 24 V/48 V industrial control and automotive power distribution networks |
| AEC-Q101 qualification | Validated for automotive use including engine control units, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 flammability rating | Molded epoxy body prevents flame propagation in safety-critical enclosures and high-density PCB assemblies |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during fast transients, improving protection margin for 200 V-rated MOSFETs and ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in vehicle ECUs from load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Bi-directional TVS placed between battery rail and ground to clamp surges up to ±100 V within nanoseconds. Use Value: Limits peak voltage to 246 V, safeguarding 36 V-rated DC-DC converters and microcontrollers without derating. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) and CAN transceiver I/O from ESD and field wiring transients. IC Role / Device Role / Timing Role: TVS connected across signal and return lines to suppress ±8 kV contact ESD (IEC 61000-4-2) and 1 kV ring wave surges. Use Value: Sub-ns response ensures clamping occurs before sensitive op-amps or transceivers experience latch-up or gate oxide damage. |
| Telecom DC Power Feeding | Renewable Energy Inverter Control |
|
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) fed via 48 V DC from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Bi-directional TVS installed at input connector to shunt surge energy to chassis ground before entering DC-DC stage. Use Value: 1500 W rating handles 10/1000 µs lightning surges per ITU-T K.20/21, preventing catastrophic failure in remote installations. |
Use Scenario: Safeguarding gate drivers and MCU inputs in solar inverter control boards exposed to grid-side switching transients and stray coupling. IC Role / Device Role / Timing Role: TVS placed across isolated DC bias rails (e.g., +15 V / –15 V) to clamp common-mode overvoltages induced by transformer leakage. Use Value: 175 °C max junction temperature allows uninterrupted operation in sealed, thermally constrained inverter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | DO-214AA (SMB) package, lower 600 W PPPM, same VBR range (171–189 V), higher VC = 279 V at 3.2 A | Surface-mount only; suited for space-constrained PCBs but less robust for high-energy 10/1000 µs surges | Select when board real estate is limited and surge threat level is moderate (e.g., consumer-grade equipment) |
| 1.5KE180AHE3/51 | Uni-directional variant - identical VBR, VWM, PPPM, but marked cathode band and asymmetric forward conduction | Requires correct polarity placement; used where DC bias exists and reverse conduction must be blocked | Choose only if circuit topology mandates unidirectional blocking (e.g., DC power input with reverse-polarity protection) |
Compared with SMBJ180CA and 1.5KE180AHE3/51, the 1.5KE180CAHE3/51 offers superior surge energy handling in an axial-leaded through-hole package with true bi-directional symmetry - making it optimal for high-reliability, high-power transient protection where layout flexibility and mechanical robustness are prioritized.
Availability
1.5KE180CAHE3/51 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, telecom DC feeding, renewable energy inverters, and PoE-powered equipment requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE180CAHE3/51 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, efficiency, and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against lightning, load dump, and ESD is non-negotiable.
FAQ
What is the breakdown voltage tolerance for 1.5KE180CAHE3/51?
The 1.5KE180CAHE3/51 has a specified breakdown voltage range of 171 V to 189 V at 1.0 mA test current, representing ±5% tolerance around the nominal 180 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage protection design margins in critical applications like automotive power rails.
Is 1.5KE180CAHE3/51 suitable for automotive applications?
Yes, 1.5KE180CAHE3/51 is AEC-Q101 qualified and explicitly rated for automotive use per Vishay's documentation. Its 175 °C maximum junction temperature, glass-passivated junction, and validation across temperature cycling, humidity, and surge stress make it appropriate for engine control units, body control modules, and ADAS sensor interfaces where reliability under extreme conditions is mandatory.
How does the bi-directional nature of 1.5KE180CAHE3/51 affect its placement in a circuit?
The bi-directional construction of 1.5KE180CAHE3/51 means it has no polarity marking and functions identically in both directions - ideal for AC-coupled lines, differential signal pairs, or DC rails where voltage reversals may occur. It is placed directly across the protected node and ground (or between complementary lines), eliminating orientation concerns during assembly and simplifying layout for surge paths in bidirectional interfaces like CAN or RS-485.
What is the clamping voltage of 1.5KE180CAHE3/51 under full-rated surge current?
At its full 1500 W peak pulse current (IPPM = 6.1 A, 10/1000 µs waveform), the 1.5KE180CAHE3/51 clamps to a maximum of 246 V. This value is guaranteed per datasheet testing and defines the upper voltage limit imposed on downstream components during worst-case transients - enabling accurate selection of voltage ratings for protected ICs and MOSFETs.
Does 1.5KE180CAHE3/51 require a heatsink for standard operation?
No external heatsink is required for 1.5KE180CAHE3/51 under typical single-pulse or low-duty-cycle surge conditions. Its thermal resistance junction-to-lead (RθJL = 15.4 °C/W) allows adequate heat dissipation through standard PCB copper pours and lead traces. However, for repetitive surge events or high ambient temperatures (>105 °C), thermal design should verify junction temperature remains below 175 °C using the provided derating curves.
1.5KE180CAHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180CAHE3/51 FAQ
1.How can I place an order for 1.5KE180CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180CAHE3/51 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 1.5KE180CAHE3/51 reliable?
The price and inventory of 1.5KE180CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE180CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180CAHE3/51?
1.5KE180CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180CAHE3/51 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 1.5KE180CAHE3/51?
For technical support, including 1.5KE180CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE180CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180CAHE3/51 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 1.5KE180CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE180CAHE3/51?
All 1.5KE180CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180CAHE3/51, 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 1.5KE180CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE180CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180CAHE3/51 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
