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Taiwan Semiconductor Corporation 1.5KE440CA B0G
- Part No.:
- 1.5KE440CA B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE440CA B0G.pdf
- Description:
- TVS DIODE 376VWM 602VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,137
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Product details
Overview
1.5KE440CA B0G from Taiwan Semiconductor is a bidirectional 440V transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500W peak pulse power at 10/1000μs, with breakdown voltage 396–484V at 1mA test current and clamping voltage 631V at 2.4A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE440CA B0G datasheet, 1.5KE440CA B0G pinout, 1.5KE440CA B0G application, or 1.5KE440CA B0G equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, DO-201 mechanical data, AEC-Q101 qualification status, and real-world ESD/inductive-spike protection use cases - all confirmed from Taiwan Semiconductor's official O2104 datasheet.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with identical VBR (396–484V), IPP (2.4A), and VC (631V) specifications in forward and reverse directions. Its low dynamic impedance and sub-5ns response time enable effective suppression of fast electrical fast transients (EFT) and load-dump spikes.
Designed for unclamped inductive switching environments, it sustains 175°C junction temperature and meets UL 94V-0 flammability requirements. The pure tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 396–484V: Confirmed bidirectional breakdown range ensuring reliable conduction onset across polarity |
| VWM | 356V: Maximum continuous working voltage - defines safe operating margin below clamping threshold |
| VC @ IPP = 2.4A | 631V: Clamping voltage under 10/1000μs surge - limits downstream voltage stress during transient events |
| PPK | 1500W: Peak pulse power rating - supports high-energy surges without failure per JEDEC standard |
| Junction Temp (TJ) | −55°C to +175°C: Wide thermal operating range suitable for under-hood automotive and industrial environments |
| Package | DO-201: Industry-standard axial leaded package with 0.090g mass and UL 94V-0 molding compound |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking for unidirectional variants; for bidirectional 1.5KE440CA, polarity is non-directional - both terminals are functionally identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bidirectional terminal | Identical conduction path in either direction - no polarity dependency in circuit layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or floating DC buses without polarity constraints |
| ISO 7637-2 compliance | Validated for automotive load-dump and coupled transient immunity (Pulse 1/2a/2b/3a/3b) |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Low dynamic impedance | Ensures rapid voltage clamping with minimal overshoot during nanosecond-scale transients |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 24V/48V vehicle battery-fed ECUs from load-dump spikes up to 120V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed at main power entry point before DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤631V during 1500W surges, preserving downstream silicon rated for ≤650V absolute maximum. | Use Scenario: Safeguarding PLC analog input modules from inductive kickback when controlling solenoids or relay coils. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on signal/power interface lines exposed to switching noise. Use Value: Sub-5ns response time prevents latch-up in precision ADC front-ends subjected to repetitive 2.4A impulse currents. |
| LED Driver Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Shielding constant-current LED drivers in streetlight systems from lightning-induced surges on long outdoor wiring. IC Role / Device Role / Timing Role: Primary-level TVS on DC bus feeding buck/boost LED controllers. Use Value: 1500W peak power rating absorbs multi-kA induced surges without degradation across 10,000+ events. | Use Scenario: Protecting RS-485 transceivers in building automation networks from EFT bursts and capacitive coupling noise. IC Role / Device Role / Timing Role: Secondary-stage clamping device after gas discharge tube (GDT) primary protection. Use Value: 631V clamping voltage ensures transceiver I/O remains within ±12V common-mode tolerance during 10/1000μs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ440CA | DO-214AA (SMB) package, 1.0kW rating, lower IPP (1.1A), same VBR range | Surface-mount only; unsuitable for through-hole designs or high-reliability axial-leaded layouts | Select when board space is constrained and thermal management allows lower power handling |
| 1.5SMC440CA | DO-214AB (SMC) package, 1.5kW rating, identical VBR/VC, but 2.5A IPP and higher thermal resistance | Requires requalification for AEC-Q101; not explicitly listed as qualified in manufacturer documentation | Choose only if DO-201 footprint is unavailable and AEC-Q101 is not mandatory for the application |
Compared with 1.5KE440CA B0G, SMBJ440CA offers smaller size but sacrifices 33% peak power and axial-leaded robustness, while 1.5SMC440CA matches power rating but lacks documented AEC-Q101 qualification - making 1.5KE440CA B0G the preferred choice for automotive-critical through-hole deployments.
Availability
1.5KE440CA B0G is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive inputs, LED driver surge suppression, and telecom line interface protection requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE440CA B0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101-qualified product lines.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness, repeatable clamping performance, and compliance with ISO 7637-2 and AEC-Q101 stress protocols.
FAQ
What is the clamping voltage of the 1.5KE440CA B0G under a 10/1000μs surge?
The 1.5KE440CA B0G has a maximum clamping voltage (VC) of 631V at 2.4A peak impulse current (IPP) under the standardized 10/1000μs waveform. This value is measured per JEDEC test conditions and ensures predictable overvoltage limiting during real-world transients such as load dump or inductive switching events. The 1.5KE440CA B0G maintains this clamping performance bidirectionally, making it suitable for floating or AC-coupled protection schemes.
Is the 1.5KE440CA B0G AEC-Q101 qualified?
Yes, the 1.5KE440CA B0G is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's official documentation (Version O2104). This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and mechanical shock - validating its suitability for automotive under-hood and powertrain applications. The "B0G" suffix denotes green compound and standard packaging, consistent with AEC-Q101-compliant manufacturing flow.
What does the "CA" suffix mean in 1.5KE440CA B0G?
The "CA" suffix in 1.5KE440CA B0G indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity. This distinguishes it from unidirectional "C" variants (e.g., 1.5KE440C) and eliminates the need for polarity-aware placement in PCB layouts. The 1.5KE440CA B0G is explicitly listed in the datasheet as a bipolar type for applications requiring AC or floating DC line protection.
What is the maximum working voltage (VWM) for the 1.5KE440CA B0G?
The maximum working voltage (VWM) for the 1.5KE440CA B0G is 356V DC, as specified in Taiwan Semiconductor's O2104 datasheet. This represents the highest continuous reverse voltage the device can block without entering avalanche conduction. Designers must ensure system operating voltage remains below this threshold to prevent leakage current escalation or premature clamping - for example, using the 1.5KE440CA B0G on a 330V DC bus leaves a 26V safety margin before clamping initiates.
How does the 1.5KE440CA B0G compare to the 1.5KE440A variant?
The 1.5KE440CA B0G is bidirectional with VBR = 396–484V and VC = 631V, while the 1.5KE440A is unidirectional with VBR = 418–462V and VC = 602V. The "CA" suffix confirms symmetrical operation, whereas "A" denotes tighter VBR tolerance (±5%) but directional conduction. The 1.5KE440CA B0G also carries AEC-Q101 qualification, unlike the base 1.5KE440, and uses green compound (B0G) per RoHS and halogen-free standards. These distinctions make the 1.5KE440CA B0G appropriate for automotive AC-coupled or polarity-agnostic protection where the 1.5KE440A would require careful orientation.
1.5KE440CA B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 376V
- Voltage - Breakdown (Min):
- 418V
- Voltage - Clamping (Max) @ Ipp:
- 602V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE440CA B0G FAQ
1.How can I place an order for 1.5KE440CA B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE440CA B0G 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 1.5KE440CA B0G reliable?
The price and inventory of 1.5KE440CA B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE440CA B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE440CA B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE440CA B0G transactions.
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4.How is shipping managed for 1.5KE440CA B0G?
1.5KE440CA B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE440CA B0G 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 1.5KE440CA B0G?
For technical support, including 1.5KE440CA B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE440CA B0G requirements.
6.How does Aetrix verify that 1.5KE440CA B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE440CA B0G 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 1.5KE440CA B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE440CA B0G?
All 1.5KE440CA B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE440CA B0G, 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 1.5KE440CA B0G part is unused and in its original packaging.
Return procedure for 1.5KE440CA B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE440CA B0G Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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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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