My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE110CAHE3/51
- Part No.:
- 1.5KE110CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110CAHE3/51.pdf
- Description:
- TVS DIODE 94VWM 152VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,544
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE110CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V breakdown voltage (VBR min/max = 105–116 V), 94.0 V stand-off voltage (VWM), 152 V clamping voltage at 9.9 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE110CAHE3/51 datasheet, 1.5KE110CAHE3/51 pinout, 1.5KE110CAHE3/51 application, or 1.5KE110CAHE3/51 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), RoHS-compliant HE3 packaging, and real-world clamping behavior under transient stress.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical VBR, VWM, and clamping characteristics in forward and reverse directions. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting MOSFET gates and microcontroller I/O pins against ESD and lightning-induced surges.
The device is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2. With 75 °C/W junction-to-ambient thermal resistance and 15.4 °C/W junction-to-lead, it supports reliable operation on PCBs with minimal copper area or discrete heatsinking in space-constrained industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 105–116 V at 1.0 mA test current - defines precise voltage threshold where clamping initiates |
| Stand-off Voltage VWM | 94.0 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| Clamping Voltage VC | 152 V at 9.9 A IPPM - limits transient voltage seen by protected circuitry during 10/1000 µs surge |
| Peak Pulse Power PPPM | 1500 W - sustains single 1 ms transients without failure, e.g., ISO 7637-2 Pulse 1/2/5a |
| Junction Temperature Range | −55 to +175 °C - supports under-hood automotive and industrial control cabinet deployment |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 molding |
Pinout & Package
1.5KE110CAHE3/51 uses a bi-directional axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking; both terminals are electrically symmetrical. Leads are matte tin-plated, solderable per J-STD-002/JESD 22-B102, and rated for 275 °C dip-soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | No cathode band; either lead serves as input/output - enables placement flexibility in AC-coupled or floating lines |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <1 ns response time and stable VBR tolerance over lifetime vs. epoxy-passivated alternatives |
| 1500 W peak pulse power (10/1000 µs) | Protects against high-energy transients like ISO 16750-2 Load Dump (up to 120 V surge) without degradation |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics - eliminates need for additional qualification testing |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and full RoHS compliance for global automotive supply chains |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes let-through voltage during clamping - preserves margin for 100 V-rated downstream ICs |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and jump-start surges in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across signal line and ground, responding within <1 ns to limit transients to ≤152 V. Use Value: Prevents latch-up or gate oxide rupture in 5 V/3.3 V interface ICs while maintaining signal integrity during normal operation at 94 V standoff. |
Use Scenario: Safeguarding 24 V DC digital inputs on programmable logic controllers exposed to inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor absorbing >1 kV spikes with 10/1000 µs profile before they reach input conditioning circuitry. Use Value: Eliminates need for external RC snubbers or varistors - reduces BOM count and improves long-term reliability in harsh factory environments. |
| Telecom Line Surge Protection | Consumer Appliance Motor Control Protection |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on outdoor cabling in security camera systems. IC Role / Device Role / Timing Role: Primary-level TVS on Ethernet pairs, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Clamps common-mode surges to safe levels (<152 V) without affecting 100BASE-TX signal integrity up to 100 MHz due to low junction capacitance (~100 pF typical). |
Use Scenario: Protecting MCU GPIOs and half-bridge drivers in washing machine motor control boards from commutation spikes during brushless DC motor switching. IC Role / Device Role / Timing Role: Localized clamp across motor phase outputs and controller supply rails to suppress dV/dt-induced coupling. Use Value: Extends MCU lifespan by limiting transient-induced resets and prevents false triggering of overcurrent protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Lower PPPM (600 W), smaller SMB package (surface-mount), higher VC/VBR ratio (1.47) | Better suited for space-constrained PCBs but unsuitable for high-energy automotive load dump | Select when board area is critical and surge energy is limited to IEC 61000-4-5 Level 3 (0.5 kV) |
| 1.5KE110AHE3/54 | Uni-directional variant; same VBR/VWM/VC specs but requires correct polarity orientation | Applicable only in DC-biased lines where reverse conduction must be blocked | Choose only if circuit topology mandates unidirectional blocking - otherwise 1.5KE110CAHE3/51 offers simpler layout and broader use cases |
Compared with SMBJ110CA and 1.5KE110AHE3/54, the 1.5KE110CAHE3/51 provides superior energy handling (1500 W vs. 600 W) and polarity-agnostic installation, making it the preferred choice for high-reliability 12–24 V systems requiring AEC-Q101 validation and proven field performance in automotive and industrial settings.
Availability
1.5KE110CAHE3/51 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom infrastructure equipment, and consumer appliance motor controllers requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE110CAHE3/51 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, targeting automotive power distribution, industrial automation, and telecom infrastructure where AEC-Q101 qualification and 1500 W surge capability are mandatory.
FAQ
What is the clamping voltage of the 1.5KE110CAHE3/51 at its rated peak pulse current?
The 1.5KE110CAHE3/51 has a maximum clamping voltage (VC) of 152 V at 9.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC standards and ensures protected circuits experience no more than 152 V during worst-case transient events - critical for safeguarding 100 V-rated downstream components. The 1.5KE110CAHE3/51 maintains this performance across its full operating temperature range.
Is the 1.5KE110CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE110CAHE3/51 is AEC-Q101 qualified and explicitly listed in Vishay's qualification scope for 1.5KE6.8AHE3_A through 1.5KE220AHE3_A and corresponding CA variants. It meets stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling - making it approved for under-hood and chassis-mounted automotive electronics. The 1.5KE110CAHE3/51 is widely used in engine control units and ADAS sensor interfaces.
How does the HE3 suffix differ from the E3 suffix on the 1.5KE110CAHE3/51?
The HE3 suffix on the 1.5KE110CAHE3/51 indicates RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. In contrast, the E3 suffix denotes RoHS compliance and JESD 201 Class 1A whisker resistance but no AEC-Q101 validation. For automotive or high-reliability industrial designs, the 1.5KE110CAHE3/51 is required - the HE3 designation confirms full automotive-grade process control and extended reliability testing beyond commercial-grade E3 parts.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE110CAHE3/51?
The 1.5KE110CAHE3/51 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length per JEDEC standards. This low RθJL enables efficient heat transfer from the silicon die to PCB copper or heatsinking structures - essential for sustaining repeated transient events without thermal runaway. The 1.5KE110CAHE3/51 leverages this property in high-duty-cycle industrial surge protection applications.
Does the 1.5KE110CAHE3/51 have polarity markings on its package?
No, the 1.5KE110CAHE3/51 is a bi-directional TVS diode and carries no polarity marking - there is no cathode band or other visual indicator on the DO-201AD molded epoxy body. Both leads are functionally identical, allowing unrestricted orientation during placement. This symmetry simplifies PCB layout and eliminates risk of reverse installation - a key advantage over uni-directional variants like 1.5KE110AHE3/54, which require strict cathode alignment.
1.5KE110CAHE3/51 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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
1.5KE110CAHE3/51 FAQ
1.How can I place an order for 1.5KE110CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110CAHE3/51 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 1.5KE110CAHE3/51 reliable?
The price and inventory of 1.5KE110CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE110CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110CAHE3/51?
1.5KE110CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110CAHE3/51 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 1.5KE110CAHE3/51?
For technical support, including 1.5KE110CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE110CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110CAHE3/51 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 1.5KE110CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE110CAHE3/51?
All 1.5KE110CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110CAHE3/51, 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 1.5KE110CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE110CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110CAHE3/51 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
