5KP110-B Equivalent & Substitute Parts

Part Overview

The 5KP110-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose transient voltage protection applications. This component features a 110V reverse standoff voltage and 5000W peak pulse power rating in a through-hole P600 axial package. The 5KP110-B is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage ratings, power dissipation, and thermal operating ranges while accommodating available packaging options.

Substiute Parts

5KP110-B

LittelfuseIn Stock: 11945KP110-B Datasheet

Current PartRFQ

5KP110A

EIC SEMICONDUCTOR INC.In Stock: 42785KP110A Datasheet

DirectRFQ

5KP110A-B

Littelfuse Inc.In Stock: 8275KP110A-B Datasheet

DirectRFQ

5KP110E3/TR13

Microchip TechnologyIn Stock: 8175KP110E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP110-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must equal 110V
• Power - Peak Pulse: Must equal 5000W (5kW)
• Type: Must be Zener unidirectional TVS diode
• Unidirectional Channels: Must equal 1
• Mounting Type: Must be Through Hole
• RoHS Status: Must maintain ROHS3 Compliant status

Voltage clamping and breakdown characteristics may vary within acceptable ranges for the application category. Peak pulse current values are dependent on clamping voltage and are secondary to the primary voltage and power parameters. Operating temperature ranges and package variants (P600 or D6 axial) are acceptable variations provided the core electrical specifications align.

Parameter Comparison

Engineering Selection Recommendations

5KP110A-B (Littelfuse Inc.) is the primary recommended substitute. This part maintains identical reverse standoff voltage (110V), peak pulse power (5000W), and operating temperature range (-55°C ~ 175°C) as the 5KP110-B. The P600 axial package matches the original specification exactly. Product status is Active, ensuring long-term availability and supply chain stability. RoHS3 compliance is maintained. Voltage clamping is 177V with 28.8A peak pulse current, representing a 4.7% reduction in clamping voltage compared to the original specification, which remains within acceptable substitution parameters for general-purpose TVS applications.

5KP110E3/TR13 (Microchip Technology) is an alternative substitute with manufacturer recommendation status. This part meets all critical electrical parameters with 110V reverse standoff and 5000W peak pulse power. Operating temperature range matches the original at -55°C ~ 175°C. The P600 axial package is compatible. Product status is Active. Voltage clamping is 196V with 25.5A peak pulse current, representing a 5.4% increase in clamping voltage. Tape & Reel packaging is available for automated assembly applications.

5KP110A (EIC SEMICONDUCTOR INC.) is a secondary substitute option. This part maintains 110V reverse standoff and 5000W peak pulse power specifications. Product status is Active. The D-6 axial package differs from the original P600 package but remains compatible for through-hole mounting applications. Operating temperature range is -55°C ~ 150°C, which is 25°C lower than the original specification. This temperature limitation may restrict use in high-temperature environments. Voltage clamping is 177V with 28A peak pulse current.

Frequently Asked Questions (FAQ)

Q: Can the 5KP110A-B directly replace the 5KP110-B without circuit modifications?

A: Yes. The 5KP110A-B maintains identical reverse standoff voltage (110V), peak pulse power (5000W), and operating temperature range (-55°C ~ 175°C). The P600 axial package is identical. No circuit modifications are required.

Q: What is the significance of the voltage clamping difference between 185.85V and 177V?

A: The voltage clamping specification defines the maximum voltage across the TVS diode during peak pulse conditions. The 5KP110A-B clamping voltage of 177V is 4.7% lower than the original 185.85V. This represents improved clamping performance and remains within acceptable substitution parameters for general-purpose transient voltage suppression.

Q: Why does the 5KP110A use a D-6 package instead of P600?

A: The D-6 and P600 are both axial through-hole packages formats for TVS diodes. Both are compatible with standard through-hole PCB assembly processes. The D-6 package is an alternative form factor that maintains electrical equivalence while offering different physical dimensions. Verify PCB footprint compatibility before selection.

Q: Is the 5KP110E3/TR13 suitable for automated assembly?

A: Yes. The 5KP110E3/TR13 is supplied in Tape & Reel (TR) packaging, which is standard for automated pick-and-place assembly equipment. The 5KP110A-B and 5KP110A are supplied in bulk packaging formats.

Q: What is the impact of the 25°C lower operating temperature range on the 5KP110A?

A: The 5KP110A operates to a maximum junction temperature of 150°C, compared to 175°C for the 5KP110A-B and original 5KP110-B. Applications requiring sustained operation above 150°C junction temperature must use the 5KP110A-B or 5KP110E3/TR13.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts (5KP110A, 5KP110A-B, and 5KP110E3/TR13) maintain ROHS3 Compliant status, matching the original 5KP110-B specification.

Q: What is the difference between the 5KP110A and 5KP110A-B?

A: Both parts share the same electrical specifications (110V reverse standoff, 5000W peak pulse power, 177V clamping voltage). The primary differences are manufacturer (EIC SEMICONDUCTOR INC. vs. Littelfuse Inc.), package format (D-6 vs. P600), and operating temperature range (150°C vs. 175°C maximum junction temperature). The 5KP110A-B is recommended for applications requiring the full 175°C operating range and P600 package compatibility.