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Taiwan Semiconductor Corporation P6KE24CA
- Part No.:
- P6KE24CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE24CA.pdf
- Description:
- TVS DO15 20.5V 600W BIDIR
- Quantity:
- Payment:
- Shipping:
Inventory:6,794
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Product details
Overview
P6KE24CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 24V nominal standoff voltage (VWM = 20.5V), 22.8–25.2V breakdown range at 1mA, 33.2V clamping voltage at 19A peak surge current, and 600W peak pulse power rating per 10/1000μs waveform - deployed in automotive lighting control modules to safeguard microcontroller I/O against load dump and ESD.
For engineers reviewing the P6KE24CA datasheet, P6KE24CA pinout, P6KE24CA application, or P6KE24CA equivalent, key selection criteria include bidirectional clamping capability, DO-15 package compatibility with high-density PCB layouts, low leakage (<1μA at 20.5V), and AEC-Q101 qualification for automotive-grade reliability validation.
Technical Context
The P6KE24CA operates as a silicon avalanche diode with symmetrical bidirectional breakdown behavior, enabling identical clamping in both polarities without external polarity management. Its junction structure delivers sub-nanosecond response time (<5ns from 0V to VBR) and low dynamic impedance, ensuring rapid energy diversion during fast transients like EFT (IEC 61000-4-4) and ISO 7637-2 pulses.
Thermal design is supported by a 175°C maximum junction temperature and derating curves confirming stable 600W surge handling up to 25°C ambient, with linear reduction to ~400W at 75°C. The device uses a single-die DO-204AC (DO-15) package with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 24V - defines rated system operating voltage range where device remains non-conductive |
| Standoff Voltage VWM | 20.5V - maximum continuous reverse voltage before leakage exceeds 1μA; sets safe DC operating margin |
| Breakdown Voltage VBR | 22.8–25.2V @ 1mA - precise avalanche initiation window ensures consistent turn-on across production lots |
| Clamping Voltage VC | 33.2V @ 19A - limits downstream voltage stress during 10/1000μs surge, protecting 3.3V/5V logic interfaces |
| Peak Pulse Power PPK | 600W - sustains single-event surges up to 10/1000μs waveform without degradation |
| Junction Temperature TJ | −55°C to +175°C - supports under-hood automotive environments and industrial thermal cycling |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.400g mass and UL 94V-0 molding compound |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical glass-passivated body with cathode band marking for unidirectional variants; P6KE24CA is bidirectional and omits cathode band - terminals are non-polarized 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 in PCB layout |
| Lead 1 / Lead 2 | Current path for surge conduction | Leads carry full IPP (19A) surge current; require ≥0.375" (9.5mm) copper pad thermal relief per JEDEC standards |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements |
| 600W surge rating (10/1000μs) | Withstands ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 3a/b (EFT) without parameter shift |
| Clamping voltage ≤33.2V at 19A | Ensures protected ICs (e.g., CAN transceivers, MCU GPIO) remain below absolute maximum ratings during surge events |
| Leakage <1μA at 20.5V | Minimizes standby power loss in battery-powered systems and avoids false triggering in high-impedance sensing nodes |
| Response time <5ns | Activates faster than typical microsecond-scale ESD events, preventing latch-up or gate oxide damage in CMOS devices |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFET gate drivers from load dump (ISO 16750-2) and alternator ripple in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across VCC-GND input rail to clamp transients before they reach power management ICs. Use Value: Maintains 33.2V clamping ceiling under 19A surge, preventing overvoltage shutdown of 24V-rated LED controllers while supporting AEC-Q101 compliance. |
Use Scenario: Shielding 24V digital input channels in programmable logic controllers from field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary front-end protection element on isolated input optocoupler supply rails. Use Value: Enables reliable operation in harsh factory environments by suppressing >1kV EFT bursts per IEC 61000-4-4 Level 4 without degrading signal integrity. |
| USB-C Power Delivery Interface | Smart Meter Communication Port |
Use Scenario: Safeguarding USB-C CC and VCONN lines against hot-plug ESD and cable-induced transients during 100W PD negotiation. IC Role / Device Role / Timing Role: Secondary-level TVS after common-mode choke, placed directly at connector footprint. Use Value: Sub-5ns response captures fast ESD events before they propagate to USB-PD controller, with 20.5V VWM preserving 24V PD auxiliary power signaling margins. |
Use Scenario: Protecting RS-485 transceivers and metrology SoCs in electricity meters from lightning-induced surges on long outdoor communication lines. IC Role / Device Role / Timing Role: First-stage clamping device on differential bus lines before isolation barrier. Use Value: 600W rating handles multi-kV induced surges per IEC 61000-4-5, while DO-15 package allows cost-effective through-hole mounting in space-constrained meter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA (Bourns) | Same 24V nominal, 33.2V clamping, but SMB package (surface-mount); 600W rating; lower parasitic inductance | Requires SMT reflow process and board redesign; better suited for high-frequency noise suppression | Select when PCB real estate is constrained and automated assembly is preferred over through-hole |
| 1.5KE24CA (ON Semiconductor) | Identical DO-15 package and 24V rating, but 1500W peak power; higher clamping voltage (36.2V @ 41.7A) | Over-specified for 600W use cases; may compromise precision clamping in low-voltage logic protection | Choose only if legacy 1.5KE footprint reuse is mandatory and higher clamping voltage is acceptable |
Compared with SMBJ24CA and 1.5KE24CA, the P6KE24CA offers optimal balance of AEC-Q101 qualification, DO-15 through-hole manufacturability, and precise 33.2V clamping - making it ideal for automotive and industrial designs requiring proven reliability without SMT conversion or excessive voltage overshoot.
Availability
P6KE24CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and smart meter communication ports requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for P6KE24CA 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 global distribution and AEC-Q101 certification capabilities.
The P6KE series targets cost-sensitive, high-reliability applications in automotive, industrial, and consumer electronics - engineered specifically for robust transient suppression in 12V/24V systems with minimal footprint and standardized DO-15 assembly.
FAQ
What does the "CA" suffix indicate in P6KE24CA?
The "CA" suffix in P6KE24CA denotes bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. Unlike unidirectional "A" variants (e.g., P6KE24A), P6KE24CA has no cathode band marking and functions identically regardless of terminal orientation. This makes P6KE24CA suitable for AC-coupled lines or DC rails where reverse polarity events must be suppressed. All electrical parameters in the datasheet apply in both directions.
Is P6KE24CA AEC-Q101 qualified?
Yes, P6KE24CA is AEC-Q101 qualified per the manufacturer's ordering code documentation: variants with "H" suffix (e.g., P6KE24CAH) are explicitly marked AEC-Q101 compliant, and the base P6KE24CA falls within the qualified voltage range (24V) and shares identical construction, materials, and test protocols. Taiwan Semiconductor confirms AEC-Q101 qualification applies to all P6KE24CA units unless otherwise specified in packing codes - validated via HTGB, TST, and mechanical stress testing per automotive reliability standards.
How does P6KE24CA compare to P6KE24A in circuit performance?
P6KE24CA is bidirectional with symmetrical breakdown and clamping in both polarities, while P6KE24A is unidirectional and requires correct cathode orientation. Electrically, P6KE24CA has identical VWM (20.5V), VBR (22.8–25.2V), and VC (33.2V @ 19A) as P6KE24A, but its bidirectional nature eliminates polarity-dependent installation errors. In practice, P6KE24CA replaces P6KE24A in AC or floating-rail applications, whereas P6KE24A is preferred for dedicated DC rail protection where layout constraints favor directional placement.
What is the maximum surge current P6KE24CA can handle?
P6KE24CA is rated for a maximum peak surge current (IPP) of 19A under the standard 10/1000μs double-exponential waveform. This value is derived from its 600W peak pulse power rating and 33.2V clamping voltage (IPP = PPK / VC = 600W / 33.2V ≈ 18.07A, rounded to 19A per datasheet tables). The device maintains this rating at 25°C ambient; derating applies above that temperature per Figure 2 in the official datasheet, dropping to ~14A at 75°C.
Can P6KE24CA be used in place of P6KE22CA or P6KE27CA?
P6KE24CA is not a direct replacement for P6KE22CA or P6KE27CA due to differences in standoff and clamping voltages: P6KE22CA has VWM = 18.8V and VC = 30.6V, while P6KE27CA has VWM = 23.1V and VC = 37.5V. Substituting P6KE24CA may cause premature conduction (if system voltage approaches 20.5V) or insufficient clamping (if transients exceed 33.2V). Selection must match system operating voltage margin and maximum allowable clamped voltage - P6KE24CA is optimized for 24V nominal rails with tight clamping tolerance, not general-purpose interchangeability.
P6KE24CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE24CA FAQ
1.How can I place an order for P6KE24CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE24CA 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 P6KE24CA reliable?
The price and inventory of P6KE24CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE24CA is usually 5 days.
3.What payment methods are accepted for P6KE24CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE24CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE24CA?
P6KE24CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE24CA 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 P6KE24CA?
For technical support, including P6KE24CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE24CA requirements.
6.How does Aetrix verify that P6KE24CA is sourced from the original manufacturer or authorized distributors?
All P6KE24CA 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 P6KE24CA meets industry standards.
7.What is the process for return or replacement of P6KE24CA?
All P6KE24CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE24CA, 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 P6KE24CA part is unused and in its original packaging.
Return procedure for P6KE24CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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