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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes > MP5KE75AE3
Microsemi Corporation
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MP5KE75AE3

Manufacturer Part Number:
MP5KE75AE3
Manufacturer / Brand
Microsemi Corporation
Part of Description:
TVS DIODE 75VWM 121VC DO204AL
Datasheets:
MP5KE75AE3(1).pdfMP5KE75AE3(2).pdf
Lead Free Status / RoHS Status:
RoHS non-compliant
Stock Condition:
New original, 39380 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MP5KE75AE3
Manufacturer / Brand Microsemi Corporation
Stock Quantity 39380 pcs Stock
Category Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes
Description TVS DIODE 75VWM 121VC DO204AL
Lead Free Status / RoHS Status: RoHS non-compliant
Voltage - Reverse Standoff (Typ) 75V
Voltage - Clamping (Max) @ Ipp 121V
Voltage - Breakdown (Min) 83.3V
Unidirectional Channels 1
Type Zener
Supplier Device Package DO-204AL (DO-41)
Series Military, MIL-PRF-19500
Power Line Protection No
Power - Peak Pulse 500W
Package / Case DO-204AL, DO-41, Axial
Package Bulk
Operating Temperature -65°C ~ 150°C (TJ)
Mounting Type Through Hole
Current - Peak Pulse (10/1000µs) 4.1A
Capacitance @ Frequency -
Base Product Number MP5KE75
Applications General Purpose

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
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
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 MP5KE75AE3 be used on a 48V or 60V DC input rail without nuisance clamping?
MP5KE75AE3 can fit a higher-voltage DC rail when the normal operating voltage stays comfortably below its 75V reverse standoff level. In practice, it is better suited to rails where startup overshoot, unplug/replug events, or line spikes may briefly rise above the nominal value but remain below the device’s continuous stress limits. If the rail can sit near or above 75V during normal operation, MP5KE75AE3 may begin to conduct in conditions that are not intended for routine operation, so a higher-standoff TVS or a different front-end protection scheme would be more appropriate.
How should MP5KE75AE3 be oriented and integrated for surge protection on a DC power line?
MP5KE75AE3 is a unidirectional TVS diode, so it is typically placed across the supply with the cathode toward the positive rail and the anode to ground. That arrangement lets MP5KE75AE3 clamp positive transients to a controlled level while remaining off during normal operation. If the protected line can see negative excursions, reverse polarity, or AC-like waveform behavior, a unidirectional device may not provide the expected protection and a bidirectional TVS or a different input architecture should be evaluated.
What series protection should I use with MP5KE75AE3 so a sustained fault does not overheat the diode?
MP5KE75AE3 is designed to absorb short transient events, not continuous overvoltage or line faults. In a practical design, it is commonly paired with a fuse, resettable PTC, trace resistance, or another current-limiting element so a fault does not force the TVS to dissipate power for an extended time. If the source can deliver high follow current, the surrounding circuit should be arranged so MP5KE75AE3 only sees brief surge energy rather than a steady fault current.
Is MP5KE75AE3 suitable for inductive loads, relay coils, or long cable runs in industrial equipment?
MP5KE75AE3 can work well for short-duration transients generated by switching inductive loads or by cable hot-plug events, provided the surge current and energy stay within the device’s pulse capability. For repetitive inductive kick events, motor disconnects, or load-dump-style pulses, the energy can exceed what a 500W axial TVS like MP5KE75AE3 is intended to absorb repeatedly. In those cases, designers often compare it with higher-energy TVS parts, MOVs, or multi-stage protection that spreads the stress across several components.
Can MP5KE75AE3 replace 1.5KE75A, SMBJ75A, or other 75V TVS parts in an existing design?
MP5KE75AE3 may be an electrical alternative only if the replacement matches the required standoff voltage, clamp behavior, surge rating, and polarity, but it is not automatically a mechanical or thermal drop-in for every 75V TVS. Compared with a surface-mount SMBJ75A, MP5KE75AE3 uses a through-hole DO-41 package, which changes PCB footprint, assembly flow, and thermal path. Compared with higher-power axial families such as 1.5KE75A, MP5KE75AE3 has a lower pulse-power rating, so the surge envelope and expected repetition rate need to be checked before treating it as a direct substitute.
Is MP5KE75AE3 appropriate for AC lines or signals that swing positive and negative?
MP5KE75AE3 is a unidirectional device, so it is better matched to DC rails or single-polarity protection targets. For AC mains-derived circuits, transformer secondaries, or signal paths that swing in both directions, a bidirectional TVS is usually a better fit. If MP5KE75AE3 is used on a line that may swing below ground, the conduction behavior on the negative half-cycle can alter circuit operation and may not produce the protection profile the design needs.
What should I check if my protected rail can overshoot above 75V during startup, hot-plug, or regeneration?
MP5KE75AE3 should be selected only after confirming that routine overshoot, hot-plug ringing, or load-recovery events remain within the device’s expected operating envelope. If the supply regularly rises above the 75V standoff region during startup or during motor regeneration, MP5KE75AE3 can begin to conduct during normal events and may create unnecessary stress on the source or itself. In that situation, designers often use a higher-standoff TVS, soft-start circuitry, clamp coordination, or a front-end controller that limits the overshoot before the TVS has to react.
Can MP5KE75AE3 be used in long-life industrial equipment or military-style environments?
MP5KE75AE3 is a military-grade, through-hole axial TVS with a wide junction temperature range, which fits harsh-environment use better than many small surface-mount options. For long-life industrial service, the main checks are repetitive surge energy, board temperature, airflow, and the mechanical robustness of the axial leads and solder joints under vibration. MP5KE75AE3 is often a practical fit when the design needs a rugged discrete protector, but the surge profile and duty cycle still need to be matched to the actual field conditions.
What should I do if my project requires RoHS-compliant sourcing or a broader supply chain than MP5KE75AE3 offers?
MP5KE75AE3 is marked RoHS non-compliant, so if the final product must meet RoHS requirements, a compliant alternative with the same electrical envelope and a compatible package should be selected. In a migration, the key checks are 75V standoff compatibility, clamp voltage at the expected surge current, DO-41 or equivalent footprint fit, and any qualification requirements tied to the end application. If the design also depends on the military-grade pedigree of MP5KE75AE3, the substitute should be reviewed for both compliance and qualification status rather than only for electrical similarity.

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MP5KE75AE3

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Microsemi Corporation

TVS DIODE 75VWM 121VC DO204AL

In Stock: 39380

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