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Taiwan Semiconductor Corporation 1.5KE150C
- Part No.:
- 1.5KE150C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150C.pdf
- Description:
- 1500W, 150V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,708
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Product details
Overview
1.5KE150C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500W peak pulse power at 10/1000μs, with breakdown voltage VBR = 135–165V @ IT = 1mA, clamping voltage VC = 215V @ IPP = 7.3A, and working stand-off voltage VWM = 121V - deployed for ESD and surge protection in automotive lighting and industrial control interfaces.
For engineers reviewing the 1.5KE150C datasheet, 1.5KE150C pinout, 1.5KE150C application, or 1.5KE150C equivalent, this page delivers verified electrical specs, DO-201 terminal polarity, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, bidirectional clamping behavior, and real-world selection guidance against comparable TVS diodes.
Technical Context
The 1.5KE150C operates as a bidirectional avalanche diode, symmetrically clamping transients above ±135V in both polarities without requiring external biasing. Its low dynamic impedance and sub-nanosecond response (<5ns for bidirectional mode) enable effective suppression of fast electrical fast transients (EFT) and ISO 7637-2 pulses.
Designed for unclamped operation up to TJ = 175°C, it sustains 1500W non-repetitive surges per JEDEC standard waveform while maintaining <1μA leakage at VWM, and meets AEC-Q101 qualification when ordered with "H" suffix - though 1.5KE150C itself is the standard-grade variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 135V / 165V @ IT = 1mA - defines reliable conduction onset threshold in both directions |
| VWM | 121V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPP | 215V @ 7.3A - clamped voltage during full 1500W surge, limiting downstream stress |
| PPK | 1500W - peak pulse power handling at 10/1000μs waveform, derated above 25°C ambient |
| IPP | 7.3A - peak impulse current corresponding to 1500W clamping at VC = 215V |
| TJ max | 175°C - maximum junction temperature enabling high-temperature board placement |
| Package | DO-201 - axial-leaded, through-hole package with tin-plated leads compliant to J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE150C is bidirectional and lacks polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No fixed anode/cathode - either lead serves as input/output for transient clamping in either polarity |
| Leads (both) | Current path & thermal interface | Tin-plated copper leads provide solderability and conduct heat to PCB copper; no dedicated heatsink pad |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500W surge rating | Withstands automotive load dump and inductive switching spikes per ISO 7637-2 without failure |
| Fast 5ns response | Clamps EFT bursts (IEC 61000-4-4) before sensitive logic or analog circuitry is disrupted |
| Low leakage & high VWM | 121V working voltage supports 100V DC bus systems with margin; <1μA leakage avoids power drain |
| DO-201 mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term reliability in vibration-prone environments |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load dump and alternator ripple in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp ±150V transients before they reach driver FETs or communication ICs. Use Value: Prevents latch-up or gate oxide damage in 12V/24V automotive systems where VWM = 121V provides safe margin over nominal bus voltage. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Installed between field-side signal line and controller ground to shunt induced lightning-induced transients (up to 1kV) away from optocouplers and level shifters. Use Value: Clamps 7.3A surges to 215V within 5ns, ensuring input logic remains within safe operating area during EN 61000-4-5 testing. |
| DC Motor Drive Feedback Lines | Smart Building Sensor Bus |
Use Scenario: Shielding encoder A/B/Z signals and hall-effect sensor outputs from commutation noise in brushed DC motor drives. IC Role / Device Role / Timing Role: Placed differentially across each feedback pair (e.g., A–GND, B–GND) to suppress common-mode spikes generated by motor back-EMF. Use Value: Symmetric 135–165V breakdown ensures equal clamping in both signal polarities, preserving quadrature timing integrity under EFT stress. | Use Scenario: Hardening RS-485 or DALI bus nodes in HVAC and lighting control panels against electrostatic discharge and cable coupling. IC Role / Device Role / Timing Role: Connected line-to-line and line-to-ground to absorb differential and common-mode transients on two-wire communication buses. Use Value: 1500W rating handles multiple repetitive 10/1000μs surges typical in building automation wiring runs, extending node MTBF. |
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 | Surface-mount SMB package (vs. DO-201 through-hole); same VBR range (135–165V), slightly lower PPK = 600W | Lower surge capacity limits use to non-automotive or low-energy industrial nodes | Select when board space is constrained and surge energy is ≤600W; not drop-in due to footprint and power derating |
| 1.5SMC150CA | Same DO-201 package but SMC-series construction; identical VBR/VC specs, PPK = 1500W, RoHS/halogen-free compliant | Functionally interchangeable with identical thermal and electrical performance | Valid alternative if dual-sourcing or extended lifecycle support is required; verify date-code availability |
Compared with 1.5KE150C, SMBJ150CA trades surge robustness for compactness, while 1.5SMC150CA offers identical protection in the same through-hole form factor - making it the preferred second-source option for legacy DO-201 designs requiring continuity.
Availability
1.5KE150C is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and DC motor feedback line hardening requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for 1.5KE150C 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 1.5KE series was designed specifically for high-energy transient suppression in harsh environments - emphasizing robust surge handling, AEC-Q101 qualification readiness, and compatibility with ISO 7637-2 test requirements.
FAQ
What is the polarity configuration of the 1.5KE150C?
The 1.5KE150C is a bidirectional TVS diode with symmetrical avalanche characteristics in both polarities. It has no marked cathode band and functions identically regardless of lead orientation - unlike unidirectional variants (e.g., 1.5KE150A) which require correct polarity installation. This makes 1.5KE150C ideal for AC-coupled or floating signal paths where voltage polarity reversal is possible.
Does the 1.5KE150C meet AEC-Q101 qualification?
The 1.5KE150C is the standard-grade version of the device and is not AEC-Q101 qualified. However, Taiwan Semiconductor offers the AEC-Q101-qualified variant as 1.5KE150CH (with "H" suffix), which shares identical electrical specifications but undergoes additional stress testing per automotive reliability standards. Always verify the full part number suffix when selecting for automotive applications.
What is the maximum clamping voltage of the 1.5KE150C under surge conditions?
The 1.5KE150C has a maximum clamping voltage VC of 215V at peak impulse current IPP = 7.3A, measured using the standardized 10/1000μs double-exponential surge waveform. This value represents the upper limit of voltage seen by protected circuitry during a full 1500W transient event - critical for ensuring downstream components remain within their absolute maximum ratings.
Can the 1.5KE150C be used in surface-mount designs?
No - the 1.5KE150C is packaged exclusively in the axial-leaded DO-201 through-hole format and is not compatible with surface-mount assembly processes. For SMT equivalents with similar 150V clamping performance, consider SMBJ150CA (600W) or SMCJ150CA (1500W) in SMB/SMC packages. These require PCB layout changes and thermal validation due to differing package thermal resistance.
How does the 1.5KE150C compare to the 1.5KE150A in circuit implementation?
The 1.5KE150A is unidirectional with a cathode band marking and conducts only in reverse bias, requiring correct orientation in DC circuits. The 1.5KE150C is bidirectional, with no polarity marking and symmetrical clamping - allowing direct replacement in AC or floating applications but not in DC-biased unidirectional configurations where forward conduction must be blocked. Their VBR, VC, and PPK values are otherwise identical.
1.5KE150C 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):
- 121V
- Voltage - Breakdown (Min):
- 135V
- Voltage - Clamping (Max) @ Ipp:
- 215V
- Current - Peak Pulse (10/1000µs):
- 7.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE150C FAQ
1.How can I place an order for 1.5KE150C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150C 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 1.5KE150C reliable?
The price and inventory of 1.5KE150C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150C is usually 5 days.
3.What payment methods are accepted for 1.5KE150C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150C?
1.5KE150C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150C 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 1.5KE150C?
For technical support, including 1.5KE150C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150C requirements.
6.How does Aetrix verify that 1.5KE150C is sourced from the original manufacturer or authorized distributors?
All 1.5KE150C 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 1.5KE150C meets industry standards.
7.What is the process for return or replacement of 1.5KE150C?
All 1.5KE150C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150C, 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 1.5KE150C part is unused and in its original packaging.
Return procedure for 1.5KE150C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150C Tags
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