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Taiwan Semiconductor Corporation 1V5KE300A
- Part No.:
- 1V5KE300A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE300A.pdf
- Description:
- TVS DIODE 256VWM 414VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,624
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Product details
Overview
1V5KE300A from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 300V reverse standoff voltage (VRWM), 315V minimum breakdown voltage (VBR), 414A peak pulse current (IPPM), and clamps transients to 414V at rated surge, making it suitable for industrial motor drives and telecom power supply input stages.
For engineers reviewing the 1V5KE300A datasheet, 1V5KE300A pinout, 1V5KE300A application, or 1V5KE300A equivalent, key selection criteria include its DO-201 package compatibility, 1500W 1ms peak pulse power rating, low clamping ratio (VC/VBR ≈ 1.31), and <1μA leakage above 256V - critical for low-power standby circuits and high-reliability EFT/ESD immunity designs.
Technical Context
The 1V5KE300A operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltages. Its unidirectional polarity and cathode-band marking define anode-to-cathode conduction path during forward-biased surge events, while reverse-biased clamping occurs above VRWM = 256V.
Thermal design relies on its DO-201 package's 0.090g mass and 175°C maximum junction temperature, with steady-state power derating beginning at 75°C ambient. The device sustains 200A non-repetitive forward surge (8.3ms half-sine) but is rated only for unidirectional use - bidirectional variants require the "C" suffix (e.g., 1V5KE300CA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 256 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (min/max) | 285 V / 315 V - Breakdown occurs within this range at 1 mA test current; ensures predictable clamping onset. |
| VC @ IPPM | 414 V - Clamping voltage at 3.8 A peak pulse current; determines maximum voltage seen by protected circuitry. |
| PPPM | 1500 W - Peak pulse power handling for 1 ms waveform; supports IEC 61000-4-5 Level 4 surge compliance. |
| IR @ VRWM | <1 μA - Reverse leakage at rated standoff voltage; critical for ultra-low-power sensor or battery-backed systems. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in high-ambient industrial enclosures without forced cooling. |
Pinout & Package
Package: DO-201 axial-leaded package with pure tin-plated leads (J-STD-002 compliant), UL 94V-0 molding compound, and cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward surge | Connected to system ground or low-side return path; conducts during positive transients. |
| Cathode | Current exit during forward surge | Connected to protected line (e.g., +24V rail); clamps when voltage exceeds VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress. |
| 1500W peak pulse power (1ms) | Supports robust protection against lightning-induced surges per IEC 61000-4-5 Combination Wave (1.2/50μs–8/20μs). |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving clamping precision. |
| RoHS & halogen-free compliance | Fulfills environmental requirements for industrial and telecom equipment sold in EU, Japan, and North America. |
Applications
| Industrial Motor Drive Input Protection | Telecom Power Supply Surge Clamping |
|---|---|
Use Scenario: Protects rectified AC input stage of variable frequency drives from line-switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: TVS diode placed across DC bus (+/-) to clamp voltage spikes before they reach IGBT gate drivers or bulk capacitors. Use Value: Withstands 1500W surges and clamps to 414V, preventing overvoltage failure of 600V-rated bus components. | Use Scenario: Shields -48V DC telecom power inputs from induced surges on long feeder lines and grounding faults. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48V rail and chassis ground to absorb negative-going transients. Use Value: 256V VRWM allows safe operation under nominal -48V with 20% tolerance, while 414V VC limits stress on downstream DC/DC converters. |
| Automotive Body Control Module (BCM) Power Line | Industrial PLC Digital Input Protection |
Use Scenario: Guards 12V/24V power rails in BCMs against load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt energy before reaching microcontroller LDOs and CAN transceivers. Use Value: Fast response (<1 ns) and 175°C TJ max ensure reliable operation in under-hood temperature environments. | Use Scenario: Protects optocoupler inputs on PLC digital I/O modules from field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Placed across input terminals (signal-to-ground) to clamp transients before reaching internal current-limiting resistors. Use Value: Low IR (<1 μA) avoids loading of high-impedance 24V sink inputs; DO-201 fits standard PCB footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300A | Same VRWM (256V), same DO-214AA package, but lower PPPM (600W) and higher VC (430V). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges in space-constrained layouts. | Select SMBJ300A only if board area is constrained and surge threat level is ≤ Level 3. |
| 1N6299A | Same family, identical electrical specs and DO-201 package; differs only in JEDEC part numbering (1N6299A vs. 1V5KE300A). | No functional difference; used interchangeably in legacy designs referencing JEDEC nomenclature. | 1N6299A is a direct form-fit-function replacement with identical sourcing and qualification. |
Compared with SMBJ300A and 1N6299A, the 1V5KE300A delivers higher surge robustness (1500W vs. 600W) and tighter clamping (414V vs. 430V), while sharing full mechanical compatibility with 1N6299A - making it optimal for high-reliability industrial power protection where surge margin and thermal headroom are critical.
Availability
1V5KE300A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and PLC digital input protection requiring stable component supply and long-term lifecycle support.
Supply support for 1V5KE300A 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 for industrial and automotive markets.
The 1V5KE series is engineered specifically for high-energy transient suppression in harsh environments, emphasizing rugged packaging, repeatable clamping performance, and compliance with international surge immunity standards.
FAQ
What is the clamping voltage of the 1V5KE300A under maximum rated surge current?
The 1V5KE300A clamps to 414 V when subjected to its rated peak pulse current of 3.8 A (10/1000 µs waveform). This value is measured per JEDEC standards and reflects the maximum voltage imposed on protected circuitry during a full 1500W surge event. Designers must verify that downstream components tolerate this clamping level with appropriate safety margin.
Is the 1V5KE300A suitable for bidirectional surge protection?
No, the 1V5KE300A is unidirectional only. For bidirectional protection, the correct variant is 1V5KE300CA, which features symmetrical breakdown in both polarities. Using the 1V5KE300A in reverse-biased configurations risks permanent damage, as its cathode band indicates polarity-sensitive operation and it lacks reverse conduction capability.
What is the maximum junction temperature rating for the 1V5KE300A?
The 1V5KE300A has a maximum junction temperature (TJ max) of 175°C, verified per JEDEC JESD22-A108. This rating supports operation in high-ambient environments such as enclosed industrial cabinets or under-hood automotive locations, provided PCB copper area and lead length comply with thermal derating curves in the datasheet.
How does the 1V5KE300A compare to the 1N6299A in terms of electrical performance?
The 1V5KE300A and 1N6299A share identical electrical specifications - including VRWM (256 V), VBR (285–315 V), VC (414 V), and PPPM (1500 W) - and are packaged identically in DO-201. They differ only in part numbering convention: 1V5KE300A follows Taiwan Semiconductor's proprietary designation, while 1N6299A aligns with JEDEC standard nomenclature.
What packaging options are available for the 1V5KE300A?
The 1V5KE300A is supplied in DO-201 axial-leaded packages, available in two standard formats: 1,250 units per tape-and-reel (standard for SMT-compatible through-hole insertion) and 500 units per ammo box (for manual prototyping or low-volume assembly). Both options feature RoHS-compliant, halogen-free molding compound and pure tin-plated leads.
1V5KE300A 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):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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
1V5KE300A FAQ
1.How can I place an order for 1V5KE300A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE300A 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 1V5KE300A reliable?
The price and inventory of 1V5KE300A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE300A is usually 5 days.
3.What payment methods are accepted for 1V5KE300A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE300A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE300A?
1V5KE300A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE300A 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 1V5KE300A?
For technical support, including 1V5KE300A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE300A requirements.
6.How does Aetrix verify that 1V5KE300A is sourced from the original manufacturer or authorized distributors?
All 1V5KE300A 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 1V5KE300A meets industry standards.
7.What is the process for return or replacement of 1V5KE300A?
All 1V5KE300A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE300A, 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 1V5KE300A part is unused and in its original packaging.
Return procedure for 1V5KE300A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE300A Tags
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