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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes > P6KE43CAHA0G
Taiwan Semiconductor Corporation
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P6KE43CAHA0G

Manufacturer Part Number:
P6KE43CAHA0G
Manufacturer / Brand
Taiwan Semiconductor Corporation
Part of Description:
TVS DIODE 36.8VWM 59.3VC DO204AC
Datasheets:
P6KE43CAHA0G.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 28631 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number P6KE43CAHA0G
Manufacturer / Brand Taiwan Semiconductor Corporation
Stock Quantity 28631 pcs Stock
Category Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes
Description TVS DIODE 36.8VWM 59.3VC DO204AC
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Reverse Standoff (Typ) 36.8V
Voltage - Clamping (Max) @ Ipp 59.3V
Voltage - Breakdown (Min) 40.9V
Type Zener
Supplier Device Package DO-204AC (DO-15)
Series Automotive, AEC-Q101, P6KE
Power Line Protection No
Power - Peak Pulse 600W
Package / Case DO-204AC, DO-15, Axial
Package Tape & Box (TB)
Operating Temperature -55°C ~ 175°C (TJ)
Mounting Type Through Hole
Current - Peak Pulse (10/1000µs) 10.6A
Capacitance @ Frequency -
Bidirectional Channels 1
Base Product Number P6KE43
Applications Automotive

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
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Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can P6KE43CAHA0G be used on a 24V automotive input that sees charging voltage and short surge events?
P6KE43CAHA0G can fit 24V nominal rails when the steady-state voltage stays below its 36.8V reverse standoff and the transient energy stays within its 600W, 10/1000 µs capability. In that kind of design, P6KE43CAHA0G is typically used as a local clamp near the electronics, not as the only protection element for severe load-dump or high-energy inductive events. If the line can stay above 36.8V for extended periods, or if the source can deliver large surge energy, a higher-power TVS or a dedicated load-dump suppressor is usually the better match.
Is P6KE43CAHA0G suitable for protecting a 12V battery rail?
P6KE43CAHA0G is usually not a good fit for most 12V rails because its 36.8V standoff allows too much voltage to pass before it begins clamping strongly. Many 12V loads and ICs have absolute maximum ratings well below that level, so the protected node may still be overstressed during a transient. For 12V systems, designers normally choose a lower-standoff TVS so the clamp starts earlier and keeps the line closer to the downstream device limit.
Should I choose bidirectional P6KE43CAHA0G or a unidirectional TVS for a DC power line?
P6KE43CAHA0G is bidirectional, so it works well when the line can see either polarity of transient, such as floating circuits, AC interfaces, or nodes where surge polarity is not guaranteed. On fixed-polarity DC rails, a unidirectional version of the same family often provides a lower clamp level for positive surges, which can reduce stress on the protected load. P6KE43CAHA0G is not a substitute for reverse-battery protection, because a sustained reversed supply at normal battery voltage will not be blocked by this device.
Can P6KE43CAHA0G replace a fuse or PTC in the input path?
P6KE43CAHA0G cannot replace a fuse or PTC. It is designed to clamp short-duration voltage transients, but it does not interrupt steady fault current. If the source can deliver high current during a wiring fault, P6KE43CAHA0G should be paired with a fuse, resettable fuse, or current-limited front end so the TVS handles the voltage spike while the other component handles sustained energy.
What PCB layout practices help P6KE43CAHA0G clamp surges more effectively?
P6KE43CAHA0G should be placed as close as possible to the connector or entry point of the transient, with very short traces to the protected node and return path. The DO-204AC axial package is easy to assemble, but the lead length adds inductance, which can increase overshoot during a fast surge. Keeping the leads short, using wide copper, and routing the surge return away from sensitive logic ground all help P6KE43CAHA0G clamp more cleanly.
Is P6KE43CAHA0G a good choice for high-speed data or low-capacitance signal lines?
P6KE43CAHA0G is usually chosen for power or slower control lines rather than high-speed interfaces. Since no capacitance value is specified here, it is not the first choice for USB, Ethernet, HDMI, or other edge-sensitive links where added capacitance and clamp dynamics can affect signal integrity. For those interfaces, a TVS with a published low-capacitance specification is normally a better design-in match than P6KE43CAHA0G.
Can P6KE43CAHA0G handle repetitive surges in industrial equipment?
P6KE43CAHA0G can handle repetitive surges only if the average thermal load stays within its junction and package limits. The 600W rating is based on a 10/1000 µs waveform, so longer pulses, higher repetition rates, or poorly controlled inductive transients can push the junction temperature upward and reduce effective clamp margin. For motors, solenoids, relays, and other repetitive surge sources, it helps to check pulse repetition, ambient temperature, and available copper area instead of relying on the single-pulse rating alone.
What should I verify when replacing another 43V TVS with P6KE43CAHA0G?
With P6KE43CAHA0G, verify that the original part had the same working voltage, bidirectional behavior, and package style. Parts that are all described as “43V” can still differ in reverse standoff, breakdown range, and clamp voltage at the same surge current, which changes how much stress the protected circuit sees. Also confirm that the DO-204AC axial footprint fits your assembly method; if you are migrating from an SMD part such as an SMBJ43CA-class device, the PCB footprint and assembly process will change.
Is P6KE43CAHA0G appropriate for automotive use near hot engine-bay temperatures?
P6KE43CAHA0G is qualified to AEC-Q101: and is rated for a junction operating range of -55°C to 175°C, which makes it compatible with automotive environments from a qualification standpoint. In a hot engine-bay design, the actual surge margin still depends on starting junction temperature, board copper area, and nearby heat sources. As the device starts hotter, its available repetitive surge energy is reduced, so the thermal environment around P6KE43CAHA0G should be checked at worst-case ambient conditions.
If P6KE43CAHA0G does not have enough surge margin, what replacement class should I consider?
If the surge source is above what P6KE43CAHA0G can absorb, designers often move to a higher-power axial TVS such as a 1.5KE43CA-class device, or to a larger surface-mount TVS if the build is SMD-based. The trade-offs usually include a larger footprint, different thermal behavior, and sometimes different capacitance or leakage characteristics. Any replacement for P6KE43CAHA0G should be checked against PCB space, clamp voltage, and the maximum stress allowed by the protected circuitry.

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P6KE43CAHA0G

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Taiwan Semiconductor Corporation

TVS DIODE 36.8VWM 59.3VC DO204AC

In Stock: 28631

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