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Taiwan Semiconductor Corporation 1V5KE30CA
- Part No.:
- 1V5KE30CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE30CA.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:5,736
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Product details
Overview
1V5KE30CA from Taiwan Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge clamping in power and signal lines. It features a 28.5–31.5 V breakdown voltage (VBR), 25.6 V reverse stand-off voltage (VRWM), 41.4 V clamping voltage (VC) at 36.2 A peak pulse current, and 1500 W peak pulse power rating at 1 ms. It protects industrial power supplies and automotive ECUs against ESD and lightning-induced transients.
For engineers reviewing the 1V5KE30CA datasheet, 1V5KE30CA pinout, 1V5KE30CA application, or 1V5KE30CA equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, sub-1 μA leakage above 10 V, RoHS/halogen-free compliance, and DO-201 mechanical compatibility with standard through-hole PCB layouts.
Technical Context
The 1V5KE30CA operates as a silicon avalanche diode with glass-passivated junction, enabling fast response time (<1 ns) and stable clamping under repetitive 10/1000 μs surge waveforms. Its bidirectional symmetry ensures identical electrical behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or floating interfaces.
It delivers 1500 W peak pulse power dissipation at Tp = 1 ms with a maximum junction temperature of 175 °C, and supports steady-state power dissipation up to 5 W at 75 °C ambient with 0.375-inch lead length. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - Ensures reliable avalanche conduction onset across manufacturing lot and temperature range |
| VRWM | 25.6 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown |
| VC @ IPPM | 41.4 V at 36.2 A - Clamped voltage during 1500 W surge; defines worst-case overvoltage seen by protected IC |
| PPPM | 1500 W - Peak surge energy handling per 1 ms pulse; validates immunity to IEC 61000-4-5 Level 4 surges |
| IR @ VRWM | <1 μA - Negligible standby leakage; avoids loading on high-impedance sensor or bias networks |
| TJ max | 175 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating |
| Package | DO-201 - Standard axial-leaded through-hole package with tin-plated leads compliant to J-STD-002 solderability |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy-molded body with cathode band marking for unidirectional variants; for 1V5KE30CA (bi-directional), polarity marking is non-functional - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no orientation required during placement |
| Lead 1 / Lead 2 | Surge current path | Carries full 36.2 A peak pulse current in either direction; requires ≥0.375" lead length for 5 W steady-state dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| 1500 W peak pulse power (1 ms) | Withstands IEC 61000-4-5 Combination Wave (1.2/50 μs voltage + 8/20 μs current) surges up to Level 4 |
| Low incremental surge resistance | Minimizes VC – VBR differential, improving clamping precision and reducing stress on downstream components |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with global environmental regulations and enables use in consumer, industrial, and automotive supply chains |
| UL 94V-0 molding compound | Prevents flame propagation in fault conditions, supporting safety-critical power interface designs |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 24 V DC input stage of programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role: Primary surge clamp at board-level input filter, placed before DC-DC converter and EMI filter. Use Value: Limits transient voltage to ≤41.4 V, preventing damage to 36 V-rated input capacitors and controller ICs. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins in door module electronics exposed to battery disconnect spikes. IC Role / Device Role: Bidirectional clamping element on LIN signal line and VBAT-referenced sensors. Use Value: Symmetric clamping eliminates need for dual unidirectional devices, reducing BOM count and PCB area. |
| LED Streetlight Driver Input | Industrial Ethernet PHY Interface |
Use Scenario: Suppressing lightning-induced surges on AC/DC front-end inputs of outdoor LED drivers rated for IP67 enclosures. IC Role / Device Role: First-line transient protection before bridge rectifier and bulk capacitor. Use Value: 1500 W rating handles multi-kA induced surges; DO-201 package withstands thermal stress from repeated outdoor thermal cycling. | Use Scenario: Protecting RJ45 magnetics and PHY transceiver pins against ESD (IEC 61000-4-2 ±8 kV contact) and EFT (IEC 61000-4-4 ±2 kV). IC Role / Device Role: Secondary-level TVS on isolated data lines after common-mode chokes. Use Value: Sub-1 μA leakage avoids signal integrity degradation; fast response preserves 100BASE-TX timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA (Bourns) | 600 W rating, SMB package (SMT), VRWM = 33 V, VC = 53.3 V @ 11.3 A | Lower power handling; suited for space-constrained PCBs where 1500 W is not required | Select when SMT assembly is mandatory and surge threat level is ≤IEC 61000-4-5 Level 3 |
| P6KE33CA (Littelfuse) | 600 W rating, DO-15 package, VRWM = 33 V, VC = 53.3 V @ 11.3 A, same JEDEC footprint as 1V5KE30CA but smaller case | Reduced thermal mass limits repetitive surge capability; lower steady-state power rating (3.3 W) | Choose for legacy DO-15 socket compatibility where 1500 W is not critical |
Compared with SMBJ33CA and P6KE33CA, the 1V5KE30CA provides 2.5× higher peak pulse power and superior thermal robustness in DO-201, making it preferred for high-reliability industrial and automotive front-end protection where sustained surge energy must be absorbed without degradation.
Availability
1V5KE30CA is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, LED driver inputs, and industrial Ethernet PHY interfaces requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE30CA 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 ISO 9001 and IATF 16949 certified production.
The 1V5KE series is part of TSC's high-power TVS portfolio engineered for robust transient immunity in harsh environments - targeting automotive, industrial automation, and outdoor lighting applications where reliability under repeated surge stress is critical.
FAQ
What is the clamping voltage of the 1V5KE30CA under maximum rated surge current?
The 1V5KE30CA has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 36.2 A (10/1000 μs waveform). This value is measured per JEDEC standards and guarantees that protected circuitry downstream will not experience voltages exceeding 41.4 V during a full 1500 W transient event. The 1V5KE30CA maintains this clamping performance across its specified junction temperature range of –55 °C to +175 °C.
Is the 1V5KE30CA unidirectional or bidirectional, and how does that affect PCB layout?
The 1V5KE30CA is a bi-directional TVS diode, indicated by the "CA" suffix. Its electrical characteristics are identical in both directions, meaning it clamps positive and negative transients equally without polarity sensitivity. As a result, PCB layout requires no orientation - either lead may connect to either side of the protected line. This simplifies assembly and eliminates risk of misplacement, unlike unidirectional variants such as 1V5KE30A which require strict cathode alignment.
What is the maximum steady-state power dissipation for the 1V5KE30CA, and under what conditions?
The 1V5KE30CA is rated for 5 W steady-state power dissipation at an ambient temperature of 75 °C, assuming a lead length of 0.375 inches (9.5 mm) per JEDEC test conditions. Derating is linear above 75 °C, reaching zero dissipation at 175 °C junction temperature. This rating applies only to continuous DC or low-frequency power dissipation - not to transient events, where the 1500 W peak pulse rating governs short-duration energy absorption.
Does the 1V5KE30CA meet automotive-grade reliability requirements?
The 1V5KE30CA meets key automotive reliability prerequisites including JESD201 Class 2 whisker resistance, UL 94V-0 flammability, and operation across –55 °C to +175 °C junction temperature. While not AEC-Q200 qualified as a standalone part, it is widely deployed in automotive body electronics (e.g., BCMs, lighting modules) where system-level qualification validates its use. For AEC-Q200-compliant alternatives, consult TSC's AEC-Q200-certified TVS portfolio.
How does the 1V5KE30CA compare to the 1N6282A in terms of specifications and interchangeability?
The 1V5KE30CA and 1N6282A are functionally identical parts - 1N6282A is the JEDEC registered type number for the same device. Both share identical VBR, VRWM, VC, PPPM, and DO-201 packaging. They are electrically and mechanically interchangeable with no design or layout changes required. The 1V5KE30CA designation reflects Taiwan Semiconductor's proprietary part numbering, while 1N6282A is the industry-standard JEDEC identifier used across distributors and cross-reference tools.
1V5KE30CA 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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
1V5KE30CA FAQ
1.How can I place an order for 1V5KE30CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE30CA 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 1V5KE30CA reliable?
The price and inventory of 1V5KE30CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE30CA is usually 5 days.
3.What payment methods are accepted for 1V5KE30CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE30CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE30CA?
1V5KE30CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE30CA 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 1V5KE30CA?
For technical support, including 1V5KE30CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE30CA requirements.
6.How does Aetrix verify that 1V5KE30CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE30CA 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 1V5KE30CA meets industry standards.
7.What is the process for return or replacement of 1V5KE30CA?
All 1V5KE30CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE30CA, 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 1V5KE30CA part is unused and in its original packaging.
Return procedure for 1V5KE30CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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