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Taiwan Semiconductor Corporation 1.5KE440A B0G
- Part No.:
- 1.5KE440A B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE440A B0G.pdf
- Description:
- TVS DIODE 376VWM 602VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,425
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Product details
Overview
1.5KE440A B0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 440 V, clamping voltage 602 V at 2.5 A peak impulse current, and working stand-off voltage 376 V. It protects high-voltage DC power rails and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE440A B0G datasheet, 1.5KE440A B0G pinout, 1.5KE440A B0G application, or 1.5KE440A B0G equivalent, this part delivers verified 1500W surge capability at 10/1000μs, sub-1ps response time, and AEC-Q101 qualification option - critical for automotive ECU front-end protection and high-reliability industrial power interface design.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped crowbar device: when transient voltage exceeds its 418–462 V breakdown range (tested at 1 mA), it switches to low-impedance conduction within <1 ps, limiting downstream voltage to ≤602 V. Its 376 V working stand-off voltage ensures stable blocking during normal 400 V DC operation.
Thermal performance is defined by 175 °C max junction temperature and 5 W steady-state power dissipation at 75 °C lead temperature (on 16 mm × 16 mm copper pad). The DO-201 package supports 200 A non-repetitive forward surge current (8.3 ms half-sine), enabling robust protection of rectifier outputs and DC-link circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1 mA | 418–462 V - defines precise clamping onset threshold under standard test conditions |
| VWM | 376 V - maximum continuous reverse operating voltage without significant leakage |
| VC @ IPP = 2.5 A | 602 V - peak clamped voltage during 10/1000 μs surge, limiting stress on protected ICs |
| PPK | 1500 W - peak pulse power handling per JEDEC standard waveform, derated above 25 °C |
| IPP (max) | 2.5 A - maximum non-repetitive peak impulse current at rated clamping voltage |
| TJ(max) | 175 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Package | DO-201 - axial-leaded, UL 94V-0 molded case with pure tin-plated leads per J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cathode indicated by band marking; anode and cathode terminals only - no internal circuitry or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to system ground or return path; establishes reference for clamping action |
| Cathode | High-side transient input | Connected to protected line (e.g., 400 V DC bus); conducts surge current to ground when VBR exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W surge rating (10/1000 μs) | Enables single-device protection of 400 V industrial power inputs against severe load dump and inductive switching events |
| Clamping voltage ≤602 V at 2.5 A | Provides margin below 650 V MOSFET drain-source breakdown, safeguarding high-voltage switching stages |
| Response time <1 ps | Prevents nanosecond-scale EFT bursts from propagating into sensitive analog or communication circuitry |
| AEC-Q101 qualified variant available | Supports automotive-grade qualification path for engine control, battery management, and ADAS power interfaces |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Validates compliance with OEM-level automotive transient immunity requirements without external filtering |
Applications
| Automotive Power Input Protection | Industrial DC Link Surge Suppression |
|---|---|
|
Use Scenario: 12 V–48 V vehicle electrical systems exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input. Use Value: Clamps 440 V transients to ≤602 V, preventing overvoltage failure of 650 V input-stage MOSFETs and gate drivers. |
Use Scenario: 400 V DC bus in motor drives and solar inverters subject to IGBT switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff protection across DC+ and DC−, absorbing repetitive 10/1000 μs energy pulses. Use Value: 1500 W rating sustains repeated 2.5 A surges without thermal runaway, extending system uptime in harsh factory environments. |
| Telecom Power Interface Protection | High-Voltage Sensor Signal Conditioning |
|
Use Scenario: -48 V telecom rectifier outputs feeding base station RF modules and backhaul controllers. IC Role / Device Role / Timing Role: Reverse-biased TVS on output rail, referenced to chassis ground. Use Value: 376 V working voltage accommodates +20 % input tolerance while maintaining <1 μA leakage at full rating. |
Use Scenario: Isolated voltage sensing of 350–400 V battery strings in EV battery management systems. IC Role / Device Role / Timing Role: Front-end clamping element before precision resistive divider and isolation amplifier. Use Value: Sub-1 ps response preserves signal integrity of fast transient detection algorithms used for cell imbalance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ440A | Same 440 V nominal, DO-214AC (SMA) package, 1500 W rating, but 648 V clamping at 2.3 A | Surface-mount layout; lower thermal resistance with PCB copper pour, but requires rework for through-hole legacy designs | Select when board space is constrained and automated SMT assembly is used. |
| ON Semiconductor 1.5SMC440A | Same 440 V nominal, DO-214AB (SMC) package, 1500 W rating, 630 V clamping at 2.4 A | Higher mounting density than DO-201; slightly higher clamping voltage reduces margin for 650 V devices | Choose for cost-sensitive industrial designs where 630 V clamping remains within safe operating area. |
Compared with 1.5KE440A B0G, SMAJ440A offers SMT compatibility and tighter thermal coupling, while 1.5SMC440A provides higher power density but less clamping margin - making 1.5KE440A B0G optimal for through-hole automotive and high-reliability industrial use where DO-201 mechanical robustness and 602 V clamping are decisive.
Availability
1.5KE440A B0G is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial 400 V DC link protection, and telecom rectifier output conditioning requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE440A 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, and rectifiers with global distribution and AEC-Q101 qualification capability.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive, industrial, and telecom power systems - emphasizing rugged DO-201 packaging, repeatable clamping performance, and compliance with ISO 7637-2 and RoHS/halogen-free standards.
FAQ
What is the exact breakdown voltage range for 1.5KE440A B0G?
The 1.5KE440A B0G has a guaranteed breakdown voltage range of 418 V to 462 V at 1 mA test current (VBR min/max), measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures reliable clamping onset across all units without exceeding 440 V nominal rating.
Is 1.5KE440A B0G unidirectional or bidirectional?
1.5KE440A B0G is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only during reverse overvoltage events and blocks forward current up to 3.5 V - unlike bidirectional variants (e.g., 1.5KE440CA) which protect both polarities.
What does the "B0G" suffix mean in 1.5KE440A B0G?
The "B0G" suffix denotes tape-and-reel packaging (B0 = 1250 pcs/reel) and green molding compound (G), confirming RoHS and halogen-free compliance per IEC 61249-2-21. It does not indicate AEC-Q101 qualification - that requires "H" or "HA0G" suffixes.
Can 1.5KE440A B0G be used in place of 1.5KE440 without modification?
Yes - 1.5KE440A B0G replaces 1.5KE440 with tighter VBR tolerance (±5 % vs. ±10 %), lower clamping voltage (602 V vs. 631 V), and improved temperature coefficient (0.110 %/°C). No PCB changes are needed; both share identical DO-201 package and pinout.
What is the maximum clamping voltage of 1.5KE440A B0G under surge conditions?
The maximum clamping voltage of 1.5KE440A B0G is 602 V, measured at 2.5 A peak impulse current (IPP) using the standard 10/1000 μs waveform. This value is guaranteed across temperature and lifetime, ensuring consistent protection margin for 650 V-rated power semiconductors.
1.5KE440A 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:
- 1
- Bidirectional Channels:
- -
- 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
1.5KE440A B0G FAQ
1.How can I place an order for 1.5KE440A B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE440A 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 1.5KE440A B0G reliable?
The price and inventory of 1.5KE440A B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE440A B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE440A B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE440A B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE440A B0G?
1.5KE440A B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE440A 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 1.5KE440A B0G?
For technical support, including 1.5KE440A B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE440A B0G requirements.
6.How does Aetrix verify that 1.5KE440A B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE440A 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 1.5KE440A B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE440A B0G?
All 1.5KE440A B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE440A 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 1.5KE440A B0G part is unused and in its original packaging.
Return procedure for 1.5KE440A B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE440A B0G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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