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Taiwan Semiconductor Corporation P4KE150CA
- Part No.:
- P4KE150CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE150CA.pdf
- Description:
- TVS DIODE 128VWM 207VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,693
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Product details
Overview
P4KE150CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 150V nominal standoff voltage, 215V maximum clamping voltage at 1.9A peak pulse current, 400W peak pulse power rating at 10/1000μs waveform, and DO-204AL (DO-41) axial package - deployed in automotive lighting control modules to safeguard CAN transceivers against load dump and EFT events.
For engineers reviewing the P4KE150CA datasheet, P4KE150CA pinout, P4KE150CA application, or P4KE150CA equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1μA at 121V), fast response (<5ns), AEC-Q101 qualification, and compatibility with 10/1000μs surge immunity testing per IEC 61000-4-5.
Technical Context
The P4KE150CA operates as a voltage-clamped avalanche diode with symmetrical breakdown in both polarities, enabling robust protection of balanced or floating circuits without polarity dependency. Its VBR range (135–165V at 1mA test current) and VC = 215V @ IPPM = 1.9A define precise overvoltage limiting behavior under standardized 10/1000μs transients.
Thermal performance is characterized by a 175°C maximum junction temperature and derated power dissipation above 25°C ambient, supported by a 0.300g DO-41 package with UL 94V-0 molding compound and pure tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 150V - defines rated working standoff level before conduction begins |
| Breakdown Voltage VBR | 135–165V @ 1mA - ensures reliable turn-on within tight tolerance band for predictable clamping onset |
| Clamping Voltage VC | 215V @ 1.9A peak pulse - limits downstream voltage stress during 10/1000μs surges |
| Peak Pulse Power | 400W - sustains single-event energy absorption per ANSI/IEEE C62.35 standard |
| Reverse Leakage ID | <1μA @ 121V - minimizes standby power loss and avoids false triggering in high-impedance circuits |
| Response Time | <5ns - enables effective suppression of fast transients including EFT bursts and inductive switching spikes |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package compatible with through-hole assembly and manual rework |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking omitted for bidirectional operation; terminals are non-polarized and function identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity - no fixed pin assignment required |
| Lead 1 / Lead 2 | Current path interface | Direct connection points to protected line and return path; equal impedance in both directions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, mechanical shock, and humidity exposure |
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating differential buses without external polarity management |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in North America |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental directives for industrial and consumer electronics |
| Low clamping ratio | VC/VBR ≈ 1.43 - delivers tighter voltage limiting than typical Zener-based protectors |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontrollers in headlamp modules subjected to ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed across power rail inputs to absorb >100V transients before reaching sensitive logic. Use Value: Limits rail voltage to ≤215V during 12V system load dump events, preventing latch-up or gate oxide damage in 3.3V/5V controllers. | Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to relay coil flyback and EFT noise. IC Role / Device Role / Timing Role: Front-end transient shunt mounted directly at connector entry point before signal conditioning circuitry. Use Value: Clamps 24V channel surges to safe levels within 5ns, maintaining signal integrity and eliminating need for additional RC filtering stages. |
| RS-485 Communication Lines | Smart Meter Power Supply Input |
Use Scenario: Protecting half-duplex RS-485 transceivers in utility metering networks from induced lightning surges and ground potential differences. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially between A/B lines and common-mode referenced to chassis ground. Use Value: Maintains ±150V common-mode standoff while clamping differential transients to <215V, preserving bus timing margins and data integrity. | Use Scenario: Shielding AC/DC converter primary-side rectifier outputs in smart electricity meters from mains-borne surges per IEC 61000-4-5 Level 3. IC Role / Device Role / Timing Role: Secondary-stage clamping device after MOV, handling residual fast-rising edges that bypass bulk suppression. Use Value: Absorbs up to 400W of residual surge energy with sub-5ns response, reducing stress on downstream electrolytic capacitors and controller ICs. |
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. axial DO-41); same 150V nominal, 215V clamping, but 600W peak power rating | Better suited for space-constrained PCB layouts; requires rework of footprint and thermal relief design | Select when board area is limited and higher surge margin is needed; verify pad thermal mass for 600W pulse handling |
| 1.5KE150CA | Same DO-41 package but 1500W peak power rating; higher IPPM (10.5A vs. 1.9A) and larger junction capacitance (120pF vs. ~50pF) | Preferred for high-energy lightning surge environments where longer duration transients dominate | Choose for IEC 61000-4-5 Level 4 compliance; avoid in high-frequency signal paths due to elevated capacitance |
Compared with SMBJ150CA and 1.5KE150CA, the P4KE150CA offers optimal balance of proven reliability in legacy through-hole designs, AEC-Q101 qualification for automotive use, and sufficient 400W surge capacity for most industrial and transportation applications without excessive capacitance or board area demand.
Availability
P4KE150CA is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O modules, RS-485 communication interfaces, and smart meter power supply inputs requiring stable component supply and long-term lifecycle support.
Supply support for P4KE150CA 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, specializing in power management, protection devices, and automotive-grade components.
The P4KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in harsh automotive and industrial environments where reliability under thermal, mechanical, and electrical stress is critical.
FAQ
What does the 'CA' suffix indicate in P4KE150CA?
The 'CA' suffix in P4KE150CA denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities, unlike unidirectional variants (e.g., P4KE150A) that require correct polarity installation. This makes P4KE150CA ideal for protecting AC-coupled or floating signal lines where voltage polarity reversal may occur. The P4KE150CA achieves this via a back-to-back diode structure housed in a single DO-41 package.
Is P4KE150CA AEC-Q101 qualified?
Yes, P4KE150CA is AEC-Q101 qualified, as confirmed in the official Taiwan Semiconductor documentation (Version N2104). This qualification validates its suitability for automotive applications including engine control units, body electronics, and lighting systems, covering stress tests such as temperature cycling, mechanical shock, and high-temperature operating life. The P4KE150CA meets all AEC-Q101 requirements for transient voltage suppressors, supporting design-in for under-hood and cabin-mounted modules.
What is the maximum clamping voltage of P4KE150CA and at what current is it specified?
The maximum clamping voltage (VC) of P4KE150CA is 215V, measured at a peak pulse current (IPPM) of 1.9A under the standard 10/1000μs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events and is guaranteed across the full operating temperature range. The P4KE150CA maintains this clamping performance consistently due to its tightly controlled breakdown voltage range of 135–165V at 1mA test current.
Can P4KE150CA be used in place of P4KE150A?
No, P4KE150CA cannot be used as a direct replacement for P4KE150A because they differ fundamentally in polarity configuration: P4KE150CA is bidirectional, while P4KE150A is unidirectional. Substituting P4KE150CA for P4KE150A in a polarity-sensitive circuit (e.g., DC power rail with defined anode/cathode placement) may result in unintended conduction or failure to clamp correctly. The P4KE150CA is only interchangeable with other CA-suffix parts or explicitly bidirectional designs.
What is the reverse leakage current specification for P4KE150CA at its working voltage?
The reverse leakage current (ID) for P4KE150CA is specified as less than 1μA when biased at its maximum working stand-off voltage of 121V, tested at 25°C ambient. This ultra-low leakage ensures minimal power loss and avoids interference with high-impedance sensing circuits or battery-powered systems. The P4KE150CA maintains this performance across its full operating temperature range (-55°C to +175°C), supporting stable operation in demanding thermal environments.
P4KE150CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- 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):
- 2A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE150CA FAQ
1.How can I place an order for P4KE150CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE150CA 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 P4KE150CA reliable?
The price and inventory of P4KE150CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE150CA is usually 5 days.
3.What payment methods are accepted for P4KE150CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE150CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE150CA?
P4KE150CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE150CA 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 P4KE150CA?
For technical support, including P4KE150CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE150CA requirements.
6.How does Aetrix verify that P4KE150CA is sourced from the original manufacturer or authorized distributors?
All P4KE150CA 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 P4KE150CA meets industry standards.
7.What is the process for return or replacement of P4KE150CA?
All P4KE150CA units undergo pre-shipment inspection (PSI). If there is an issue with P4KE150CA, 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 P4KE150CA part is unused and in its original packaging.
Return procedure for P4KE150CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE150CA Tags
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