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Taiwan Semiconductor Corporation 1.5KE150CA
- Part No.:
- 1.5KE150CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150CA.pdf
- Description:
- TVS 1500W 150.5V 5% BIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:5,320
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Product details
Overview
1.5KE150CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 150V, working stand-off voltage 121V, clamping voltage 215V at 7.3A peak pulse current, and fast response time <5.0ns. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE150CA datasheet, 1.5KE150CA pinout, 1.5KE150CA application, or 1.5KE150CA equivalent, this page delivers verified electrical parameters, bidirectional TVS behavior, DO-201 mechanical data, AEC-Q101 qualification status, and real-world surge immunity design context - all confirmed from Taiwan Semiconductor's official O2104 datasheet.
Technical Context
The 1.5KE150CA operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±135V (min VBR) and below ±165V (max VBR) with 1.0mA test current. Its low dynamic impedance enables stable clamping under 10/1000μs waveform stress up to 1500W peak power.
Designed for unclamped inductive load switching and ESD protection in 12V/24V automotive systems, it meets ISO 7637-2 immunity requirements without external biasing. Junction temperature range spans −55°C to +175°C, supporting under-hood deployment with no derating below 75°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 135V / 165V at IT = 1.0mA - defines symmetrical avalanche onset threshold in both directions |
| VWM | 121V - maximum continuous reverse voltage before leakage exceeds 1µA; sets safe operating margin below VBR |
| VC @ IPP | 215V at IPP = 7.3A - clamped voltage during 10/1000μs surge; determines protected circuit's max overvoltage exposure |
| PPK | 1500W - peak pulse power handling per single non-repetitive 10/1000μs event; defines transient energy absorption capacity |
| Response time | <5.0ns - time from 0V to VBR under bidirectional surge; ensures sub-nanosecond reaction to fast EFT/ESD events |
| TJ max | +175°C - maximum junction temperature; enables operation in high-ambient environments like engine control units |
| ID @ VWM | <1µA - blocking leakage at rated stand-off voltage; minimizes standby power loss in always-on systems |
Pinout & Package
Package: DO-201 axial leaded case with cathode band marking (bidirectional symmetry means no polarity dependence; band denotes terminal orientation only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no DC bias required |
| Lead 1 / Lead 2 | Current path for surge conduction | Leads conduct full IPP (7.3A) during clamping; tin-plated per J-STD-002 for reliable solderability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) without failure |
| Low clamping ratio (VC/VBR) | 215V / 135V ≈ 1.59 - tight ratio ensures minimal overvoltage overshoot during surge suppression |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for green manufacturing |
| DO-201 mechanical robustness | UL 94V-0 molding compound and 0.090g mass enable vibration resistance and thermal stability in harsh environments |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Suppressing load dump transients on 24V battery-fed ECUs per ISO 7637-2 Pulse 2b. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed across power input prior to DC-DC converter. Use Value: Limits voltage to ≤215V during 100V/100ms surge, preventing damage to downstream 36V-rated regulators and microcontrollers. |
Use Scenario: Protecting digital input channels of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector on 24V sensor interface lines exposed to relay coil back-EMF and lightning-induced coupling. Use Value: Clamps 1kV/10/1000μs transients within 5ns, maintaining signal integrity while absorbing 1500W peak energy without degradation. |
| LED Driver Overvoltage Suppression | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding constant-current LED drivers in streetlight systems against grid switching surges. IC Role / Device Role / Timing Role: Primary-level TVS on AC/DC front-end input, coordinated with MOV and fuse. Use Value: Withstands repeated 1500W pulses without parameter shift, ensuring >10-year field life in outdoor deployments. |
Use Scenario: Shielding high-side/low-side gate drivers in BLDC inverters from shoot-through induced voltage spikes. IC Role / Device Role / Timing Role: Localized TVS across driver supply pins (VDD–GND) to clamp fast-rising dv/dt events. Use Value: Sub-5ns response prevents false triggering of protection circuits while limiting gate oxide stress to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Same 150V VBR and bidirectional configuration, but 600W PPK rating (SMB package); lower surge capacity | Best suited for space-constrained PCBs where 1500W rating is not required; SMB footprint reduces board area by ~40% | Select SMBJ150CA when layout density outweighs peak surge requirement and ambient temperature stays ≤85°C |
| 1.5SMC150CA | Same 150V rating and 1500W rating, but SMC (DO-214AB) surface-mount package; no axial leads | Enables automated assembly and eliminates through-hole drilling; thermal performance differs due to pad layout dependency | Choose 1.5SMC150CA for reflow-soldered designs requiring AEC-Q200 compliance and higher mounting flexibility |
Compared with 1.5KE150CA, SMBJ150CA trades surge capacity for compactness, while 1.5SMC150CA replaces axial leads with SMT compatibility - both retain identical VBR and VC but differ in thermal path, mounting method, and production integration.
Availability
1.5KE150CA is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, LED lighting systems, and motor drive modules requiring stable component supply, long-lifecycle support, and AEC-Q101-qualified surge protection.
Supply support for 1.5KE150CA 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive power networks and industrial control systems, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust DO-201 packaging for under-hood resilience.
FAQ
What is the exact breakdown voltage range for 1.5KE150CA?
The 1.5KE150CA has a guaranteed breakdown voltage range of 135V (minimum) to 165V (maximum) at 1.0mA test current, per Taiwan Semiconductor's O2104 datasheet. This bidirectional specification applies equally in both polarities and defines the voltage threshold at which avalanche conduction begins during transient events. The 1.5KE150CA maintains this tolerance across its full operating temperature range.
Is 1.5KE150CA AEC-Q101 qualified?
Yes, the 1.5KE150CA is AEC-Q101 qualified, as explicitly stated in the "FEATURES" section of the official datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD), confirming suitability for automotive powertrain and body electronics applications. The "H" suffix in ordering codes (e.g., 1.5KE150CAH) denotes AEC-Q101 compliance.
What is the clamping voltage of 1.5KE150CA at its rated peak pulse current?
The 1.5KE150CA clamps to a maximum of 215V at 7.3A peak pulse current (IPP), measured under the standard 10/1000μs double-exponential waveform. This value is specified in the Electrical Specifications table and represents the upper limit of voltage imposed on protected circuitry during worst-case surge conditions. The 1.5KE150CA achieves this with a clamping ratio of approximately 1.59 (215V ÷ 135V).
Does 1.5KE150CA meet ISO 7637-2 immunity standards?
Yes, the 1.5KE150CA is explicitly rated to meet ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b, as confirmed in the "FEATURES" section of the datasheet. Its 1500W surge capability, low clamping voltage, and sub-5ns response time collectively ensure compliance with the voltage and energy limits defined in those test pulses for 12V and 24V automotive systems.
What package type does 1.5KE150CA use and what are its key mechanical properties?
The 1.5KE150CA uses the DO-201 axial-leaded package, featuring UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002, and a typical weight of 0.090g. Polarity is marked with a cathode band, though the device operates bidirectionally. The DO-201 form factor provides mechanical robustness for high-vibration environments and supports lead-forming for varied mounting configurations.
1.5KE150CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.6A
- 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-201
1.5KE150CA FAQ
1.How can I place an order for 1.5KE150CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150CA 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 1.5KE150CA reliable?
The price and inventory of 1.5KE150CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150CA is usually 5 days.
3.What payment methods are accepted for 1.5KE150CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150CA?
1.5KE150CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150CA 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 1.5KE150CA?
For technical support, including 1.5KE150CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150CA requirements.
6.How does Aetrix verify that 1.5KE150CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE150CA 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 1.5KE150CA meets industry standards.
7.What is the process for return or replacement of 1.5KE150CA?
All 1.5KE150CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150CA, 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 1.5KE150CA part is unused and in its original packaging.
Return procedure for 1.5KE150CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150CA Tags
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