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Taiwan Semiconductor Corporation 1V5KE440A
- Part No.:
- 1V5KE440A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE440A.pdf
- Description:
- TVS DIODE 376VWM 602VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:5,901
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Product details
Overview
1V5KE440A from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500W peak pulse power at 1.0ms, with breakdown voltage 418–462V, reverse stand-off voltage 376V, clamping voltage 602V at 2.6A, and junction temperature range –55°C to +175°C. It protects high-voltage industrial power supplies and AC line inputs against ESD and lightning-induced surges.
For engineers reviewing the 1V5KE440A datasheet, 1V5KE440A pinout, 1V5KE440A application, or 1V5KE440A equivalent, key selection criteria include verified bidirectional clamping performance, DO-201 mechanical compatibility, 376V VRWM rating, low incremental surge resistance, and RoHS/halogen-free compliance for industrial-grade surge protection design.
Technical Context
The 1V5KE440A operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both directions due to its CA-suffix bipolar construction. Its 1500W peak pulse power rating is defined per 10/1000μs waveform, and it maintains <1μA reverse leakage above 10V at rated VRWM.
Designed for unidirectional and bidirectional transient suppression, the device exhibits fast response time (<1.0ps), low dynamic impedance, and stable clamping up to TJ = 175°C. Electrical characteristics-including VBR, VRWM, IPPM, and VC-are fully specified for both polarities and validated per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPPM) | 1500 W at 1.0 ms - supports IEC 61000-4-5 Level 4 surge immunity testing |
| Breakdown Voltage (VBR) | 418–462 V @ IT = 1 mA - ensures reliable avalanche conduction onset across production lot |
| Reverse Stand-Off Voltage (VRWM) | 376 V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage (VC) | 602 V @ IPPM = 2.6 A - limits transient voltage seen by downstream circuitry |
| Junction Temperature Range | –55°C to +175°C - enables operation in harsh industrial and outdoor environments |
| Package | DO-201 - industry-standard axial-leaded package with UL 94V-0 molding compound |
| RoHS & Halogen-Free | Compliant per IEC 61249-2-21 - meets environmental requirements for global electronics manufacturing |
Pinout & Package
Package: DO-201 - axial-leaded, molded plastic case with cathode band marking (not applicable for bidirectional 1V5KE440A; polarity not functional in CA-suffix configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (non-polarized) | Transient current path | Both terminals function identically under surge conditions; no directional bias required |
| Leads (Tin-plated) | PCB interface & thermal path | Pure tin plating ensures solderability per J-STD-002; 0.375″ lead length supports 5W derated power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche behavior over lifetime and temperature cycling |
| 1500W peak pulse power (1.0ms) | Withstands 4kV/2Ω IEC 61000-4-5 combination wave surges without degradation |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts) |
| Bidirectional symmetry (CA suffix) | Eliminates need for polarity-aware layout; simplifies PCB routing for AC-coupled lines |
| RoHS + halogen-free | Supports compliance with EU WEEE, China RoHS II, and automotive ELV directives |
Applications
| AC Mains Input Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Surge suppression on 3-phase 400VAC input rectifier stage exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Primary clamping element placed across bulk capacitor or bridge rectifier output. Use Value: Limits transient voltage to ≤602V, preventing overvoltage failure of 600V-rated electrolytic capacitors and IGBT gate drivers. |
Use Scenario: Protection of 600V DC bus in variable-frequency drives subject to inductive switching spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing regenerative energy spikes during rapid deceleration. Use Value: Clamps 1500W surges within 1ms, maintaining bus voltage below 650V to avoid overvoltage shutdown of inverter modules. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Secondary-side surge protection on -48V telecom power distribution boards. IC Role / Device Role / Timing Role: Bidirectional clamp on battery backup feed lines susceptible to ESD and load dump. Use Value: Withstands ±4kV contact discharge (IEC 61000-4-2) without parametric shift, preserving system uptime. |
Use Scenario: DC-link protection in solar string inverters operating at 1000VDC systems. IC Role / Device Role / Timing Role: High-voltage TVS across PV array input to absorb grid-switching transients and fault currents. Use Value: Maintains 376V VRWM margin above 1000VDC nominal, enabling safe operation under worst-case overvoltage conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ440A | Same DO-214AC (SMA) package; lower PPPM (400W); VRWM = 376V; VC = 608V @ 2.5A | Lower surge handling capacity; suitable only for sub-IEC Level 3 environments | Select when space-constrained layouts require surface-mount and surge energy is ≤400W |
| ON Semiconductor 1.5KE440A | Identical DO-201 package and electrical specs (VBR 418–462V, VRWM 376V, VC 602V); same 1500W rating | Direct form-fit-function replacement; qualified for automotive AEC-Q200 Grade 3 | Prefer for automotive or extended-temperature designs requiring AEC-Q200 qualification |
Compared with Littelfuse SMAJ440A and ON Semiconductor 1.5KE440A, the 1V5KE440A offers identical high-energy clamping in DO-201 but without AEC-Q200 qualification-making it optimal for cost-sensitive industrial power supplies where 1500W surge immunity is mandatory and automotive qualification is unnecessary.
Availability
1V5KE440A is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, and telecom power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1V5KE440A 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 ISO 9001 and IATF 16949 certification.
The 1V5KE series was developed specifically for high-reliability industrial surge protection, emphasizing robustness under repetitive transient stress and compatibility with automated through-hole assembly processes.
FAQ
What does the "CA" suffix in 1V5KE440A signify?
The "CA" suffix in 1V5KE440A indicates a bidirectional configuration, meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants, the 1V5KE440A has no cathode marking and functions identically regardless of terminal orientation. This makes the 1V5KE440A ideal for AC-coupled or floating-line applications where polarity cannot be guaranteed.
Is 1V5KE440A compatible with automated through-hole assembly?
Yes, the 1V5KE440A is designed for automated through-hole insertion with standard DO-201 lead spacing and pure tin-plated leads compliant with J-STD-002 solderability requirements. Its 0.090g weight and UL 94V-0 molding compound ensure reliable handling and thermal stability during wave soldering. The 1V5KE440A is supplied in tape-and-reel (1250 pcs) and ammo box (500 pcs) packaging formats optimized for SMT and THT lines.
How does the clamping voltage of 1V5KE440A compare to its breakdown voltage?
The 1V5KE440A has a minimum breakdown voltage (VBR) of 418V at 1mA test current, while its maximum clamping voltage (VC) is 602V at 2.6A peak pulse current. This 184V differential reflects the device's controlled avalanche impedance under surge conditions. That voltage headroom ensures protected circuits remain below critical overvoltage thresholds even during full-rated 1500W transients.
Can 1V5KE440A be used in place of 1N6299A?
No-1N6299A is the JEDEC-registered part number for the same electrical specification as 1V5KE150A (150V), not 440V. The 1V5KE440A corresponds to JEDEC part number 1N6304A (per Taiwan Semiconductor's documentation). Substituting based on JEDEC numbering requires verifying exact VBR/VRWM values; using 1N6299A in place of 1V5KE440A would result in catastrophic overvoltage failure due to mismatched voltage ratings.
Does 1V5KE440A meet IEC 61000-4-5 surge immunity requirements?
Yes-the 1V5KE440A's 1500W peak pulse power rating at 1.0ms aligns with the 4kV/2Ω combination wave test profile defined in IEC 61000-4-5 Ed. 3. When correctly applied with appropriate series impedance (e.g., 2Ω source), the 1V5KE440A clamps transients to ≤602V, enabling downstream circuitry to meet Level 4 (highest severity) immunity requirements. Layout and PCB trace inductance must be minimized to preserve this performance.
1V5KE440A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 2.6A
- 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-201AD
1V5KE440A FAQ
1.How can I place an order for 1V5KE440A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE440A 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 1V5KE440A reliable?
The price and inventory of 1V5KE440A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE440A is usually 5 days.
3.What payment methods are accepted for 1V5KE440A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE440A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE440A?
1V5KE440A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE440A 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 1V5KE440A?
For technical support, including 1V5KE440A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE440A requirements.
6.How does Aetrix verify that 1V5KE440A is sourced from the original manufacturer or authorized distributors?
All 1V5KE440A 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 1V5KE440A meets industry standards.
7.What is the process for return or replacement of 1V5KE440A?
All 1V5KE440A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE440A, 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 1V5KE440A part is unused and in its original packaging.
Return procedure for 1V5KE440A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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