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Taiwan Semiconductor Corporation 1V5KE56CA
- Part No.:
- 1V5KE56CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE56CA.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,645
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Product details
Overview
1V5KE56CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge clamping in power and signal lines. It features a 53.2–58.8 V breakdown voltage (VBR), 47.8 V reverse stand-off voltage (VRWM), 1500 W peak pulse power (1 ms), 77.0 V clamping voltage at 19.5 A peak current, and operates from –55 °C to +175 °C - used in industrial power supply input protection.
For engineers reviewing the 1V5KE56CA datasheet, 1V5KE56CA pinout, 1V5KE56CA application, or 1V5KE56CA equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, sub-1 μA leakage above 47.8 V, RoHS/halogen-free compliance, and DO-201 mechanical compatibility with standard through-hole PCB layouts.
Technical Context
The 1V5KE56CA is a unidirectional/bidirectional avalanche diode optimized for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge). Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1 ns), while its low dynamic impedance enables effective voltage clamping during multi-kA transients.
Designed for single-pulse energy absorption, it delivers 1500 W peak power at 1 ms with a 10/1000 µs waveform, and supports up to 200 A non-repetitive forward surge current (8.3 ms half-sine) in unidirectional mode - though the CA suffix confirms full bidirectional operation with symmetrical VBR and VC in both polarities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V - defines reliable avalanche conduction onset across temperature and unit variation |
| VRWM | 47.8 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 77.0 V at 19.5 A - clamped voltage seen by protected circuit during worst-case 1500 W transient |
| PPPM | 1500 W (1 ms) - peak surge energy handling capacity under standardized test conditions |
| IR @ VRWM | <5 µA - minimal leakage ensures no loading of sensitive high-impedance circuits |
| TJ Range | –55 °C to +175 °C - supports operation in harsh environments including automotive under-hood and industrial motor drives |
| Package | DO-201 - industry-standard axial-leaded package with UL 94V-0 molding and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for polarity identification. Bidirectional operation means both terminals are functionally symmetric; no anode/cathode distinction applies in circuit use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient current entry point (uni-mode) / Symmetric terminal (bi-mode) | Marked band denotes cathode in unidirectional variants; for 1V5KE56CA (CA suffix), either terminal serves as clamping node - no functional polarity |
| Cathode (unmarked end) | Transient current exit point (uni-mode) / Symmetric terminal (bi-mode) | Same electrical role as anode under reverse or forward surge - bidirectional symmetry eliminates orientation dependency in layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term VBR stability and reduced parameter drift over thermal cycling and humidity exposure |
| 1500 W peak pulse power (1 ms) | Provides robust immunity against IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 Ω source impedance) surges |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for downstream ICs |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives without compromising surge performance |
| Fast response time (<1 ns) | Clamps before transient energy couples into protected circuitry - critical for high-speed data and microcontroller I/O lines |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) ESD Protection |
|---|---|
Use Scenario: 24 V DC power rail in programmable logic controllers exposed to load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Primary clamping device placed at connector entry to shunt surge energy before reaching DC-DC converters and microcontrollers. Use Value: 77.0 V clamping voltage limits stress on 36 V-rated input stages, while 1500 W rating handles repetitive 100 A/50 ms surges per ISO 7637-2 Pulse 5a. | Use Scenario: CAN/LIN bus lines and sensor inputs in BCMs subjected to ESD events per ISO 10605 (30 kV air, 15 kV contact). IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode chokes to clamp differential-mode ESD transients on bidirectional data lines. Use Value: Sub-1 µA leakage at 47.8 V prevents signal distortion on 5 V or 12 V data buses; bidirectional symmetry avoids polarity-sensitive routing. |
| LED Driver Surge Suppression | AC-DC Adapter Input Stage |
Use Scenario: Constant-current LED drivers in street lighting systems encountering lightning-induced surges on long outdoor wiring runs. IC Role / Device Role / Timing Role: Parallel-connected TVS across primary-side bulk capacitor to clamp AC line transients coupled via transformer parasitics. Use Value: 175 °C max junction temperature allows direct mounting near heat-generating MOSFETs; DO-201 form factor fits high-density LED driver PCBs. | Use Scenario: Universal-input (85–265 VAC) adapters where MOVs alone cannot meet stringent IEC 61000-4-5 immunity requirements. IC Role / Device Role / Timing Role: Fast-acting secondary-stage suppressor bridging rectified DC bus to ground, complementing slower MOV-based primary protection. Use Value: 53.2–58.8 V VBR aligns with 48 V DC bus clamping targets; 77.0 V VC ensures safe margin below 100 V-rated electrolytic capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA (Bourns) | 600 W rating, SMB package (surface-mount), VRWM = 49.4 V, VC = 93.6 V @ 6.4 A | Lower power handling and higher clamping voltage limit suitability to lower-energy interfaces (e.g., USB, RS-485) | Select when board space constraints require SMT or when 600 W surge level suffices per system-level testing |
| P6KE56CA (ON Semiconductor) | 600 W rating, DO-15 package, VRWM = 47.8 V, VC = 93.6 V @ 6.4 A - identical VRWM but higher VC and lower PPPM | Limited to Class II (2 kV) IEC 61000-4-5 applications due to lower energy absorption | Choose only if legacy DO-15 footprint reuse is mandatory and system surge stress is verified ≤600 W |
Compared with SMBJ58CA and P6KE56CA, the 1V5KE56CA provides 2.5× higher peak power (1500 W vs. 600 W) and 16.6 V lower clamping voltage at rated current - directly enabling higher immunity margins in industrial and transportation equipment without redesigning thermal or layout constraints.
Availability
1V5KE56CA is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, LED driver surge suppression, and AC-DC adapter input stages requiring stable component supply across extended production lifecycles.
Supply support for 1V5KE56CA 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.
The 1V5KE series was developed to deliver high-reliability, high-power transient suppression in cost-sensitive industrial and automotive applications - emphasizing robust DO-201 packaging, tight VBR tolerance, and consistent clamping performance across temperature extremes.
FAQ
What is the breakdown voltage range for 1V5KE56CA?
The 1V5KE56CA has a guaranteed breakdown voltage (VBR) range of 53.2 V to 58.8 V at 1 mA test current, measured per JEDEC standards. This range reflects manufacturing tolerance and ensures predictable clamping onset across all units. The 1V5KE56CA's VBR is specified under bidirectional test conditions, confirming symmetrical behavior in both polarities.
Is 1V5KE56CA unidirectional or bidirectional?
The "CA" suffix in 1V5KE56CA explicitly denotes bidirectional configuration. Unlike "A"-suffixed variants, the 1V5KE56CA provides identical electrical characteristics - including VBR, VRWM, and VC - in both forward and reverse directions. This eliminates polarity concerns during PCB placement and simplifies design for AC-coupled or differential signal lines.
What is the maximum clamping voltage of 1V5KE56CA at rated surge current?
The 1V5KE56CA clamps to a maximum of 77.0 V at its rated peak pulse current of 19.5 A (10/1000 µs waveform). This value is measured under standardized test conditions and represents the highest voltage imposed on the protected circuit during a full 1500 W transient event - critical for verifying safe operating margins of downstream components.
Does 1V5KE56CA meet RoHS and halogen-free requirements?
Yes, the 1V5KE56CA is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is fully restricted per EU Directive 2011/65/EU. These certifications are validated in TSC's material declarations and apply to all production lots of the 1V5KE56CA.
What package type does 1V5KE56CA use, and what are its key mechanical properties?
The 1V5KE56CA uses the DO-201 axial-leaded package: UL 94V-0 rated epoxy body, pure tin-plated leads compliant with J-STD-002 solderability, and JESD 201 Class 2 whisker resistance. It weighs approximately 0.090 g and features a cathode band marking - though this marking has no functional impact in bidirectional operation of the 1V5KE56CA.
1V5KE56CA 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 19.5A
- 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-201AD
1V5KE56CA FAQ
1.How can I place an order for 1V5KE56CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE56CA 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 1V5KE56CA reliable?
The price and inventory of 1V5KE56CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE56CA is usually 5 days.
3.What payment methods are accepted for 1V5KE56CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE56CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE56CA?
1V5KE56CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE56CA 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 1V5KE56CA?
For technical support, including 1V5KE56CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE56CA requirements.
6.How does Aetrix verify that 1V5KE56CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE56CA 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 1V5KE56CA meets industry standards.
7.What is the process for return or replacement of 1V5KE56CA?
All 1V5KE56CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE56CA, 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 1V5KE56CA part is unused and in its original packaging.
Return procedure for 1V5KE56CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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