5KP90CA-B Equivalent & Substitute Parts

Part Overview

The 5KP90CA-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates with a 90V reverse standoff voltage and delivers 5000W peak pulse power, making it suitable for protecting sensitive electronic circuits from transient voltage events. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible through-hole mounting configurations.

Substiute Parts

5KP90CA-B

Littelfuse Inc.In Stock: 7315KP90CA-B Datasheet

Current PartRFQ

1.5KE100CA

Diotec SemiconductorIn Stock: 149691.5KE100CA Datasheet

MFR RecommendedRFQ

1.5KE110CA

Taiwan Semiconductor CorporationIn Stock: 10821.5KE110CA Datasheet

MFR RecommendedRFQ

5KP90CA

Littelfuse Inc.In Stock: 44805KP90CA Datasheet

MFR RecommendedRFQ

P6KE100CA

Fairchild SemiconductorIn Stock: 1543P6KE100CA Datasheet

MFR RecommendedRFQ

P6KE110CA

Taiwan Semiconductor CorporationIn Stock: 3953P6KE110CA Datasheet

MFR RecommendedRFQ

P6KE91CA

Fairchild SemiconductorIn Stock: 1735P6KE91CA Datasheet

MFR RecommendedRFQ

5KP90CA-TP

Micro Commercial CoIn Stock: 18015KP90CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP90CA-B is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Bidirectional TVS diode configuration (1 channel)
• Voltage - Reverse Standoff range: 77.8V to 110.5V
• Voltage - Clamping (Max) @ Ipp range: 125V to 152V
• Through-hole axial mounting configuration
• Operating temperature range: minimum -50°C, maximum 175°C
• Active product status

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (P600 Package): Parts maintaining identical P600 axial package and 5000W peak pulse power rating with matching voltage specifications.

Category B - Functional Alternatives (DO-201 and DO-15 Packages): Parts with compatible voltage parameters but reduced peak pulse power (1500W or 600W) and different axial package configurations (DO-201AA or DO-204AC).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Recommended for Pin-Compatible Replacement):

5KP90CA and 5KP90CA-TP are direct electrical equivalents to 5KP90CA-B, maintaining identical voltage specifications (90V reverse standoff, 146V clamping), peak pulse power (5000W), and operating temperature range (-55°C to 175°C). Both parts are ROHS3 compliant and active in production. Selection between these three depends on packaging requirements: 5KP90CA-B (Bulk), 5KP90CA (Cut Tape), and 5KP90CA-TP (Cut Tape, R-6 package variant).

Functional Alternatives (For Reduced Power Applications):

1.5KE100CA, 1.5KE110CA, P6KE91CA, P6KE100CA, and P6KE110CA provide voltage protection within the specified range but with reduced peak pulse power ratings (1500W or 600W). These alternatives are suitable only for applications where the 5000W peak pulse power of the main part is not required. All substitute parts maintain through-hole axial mounting and operate within the -50°C to 175°C temperature range. 1.5KE110CA and P6KE110CA are ROHS3 compliant; 1.5KE100CA compliance status is not applicable; P6KE91CA and P6KE100CA compliance status is not specified.

Frequently Asked Questions (FAQ)

Q: Can 5KP90CA-B be replaced with 5KP90CA or 5KP90CA-TP?

A: Yes. Both 5KP90CA and 5KP90CA-TP are direct electrical equivalents with identical voltage specifications, peak pulse power (5000W), and operating temperature range. The difference is packaging format: 5KP90CA-B is supplied in Bulk, 5KP90CA in Cut Tape, and 5KP90CA-TP in Cut Tape with R-6 package variant. All three are ROHS3 compliant and active in production.

Q: What is the difference between P600 and DO-201 packages?

A: P600 and DO-201 are both through-hole axial package configurations but differ in physical dimensions and lead spacing. P600 is used in the 5KP series (5000W rating), while DO-201 is used in the 1.5KE series (1500W rating). Package selection depends on PCB layout requirements and available mounting space. Direct physical substitution requires PCB redesign.

Q: Can I use P6KE series parts as substitutes for 5KP90CA-B?

A: P6KE series parts (P6KE91CA, P6KE100CA, P6KE110CA) have compatible voltage specifications but significantly reduced peak pulse power (600W versus 5000W). These parts are suitable only for low-power transient protection applications. For applications requiring 5000W peak pulse power handling, P6KE series substitution is not appropriate.

Q: Are all substitute parts ROHS3 compliant?

A: No. 5KP90CA, 5KP90CA-TP, 1.5KE110CA, and P6KE110CA are ROHS3 compliant. 1.5KE100CA has not applicable compliance status. P6KE91CA and P6KE100CA compliance status is not specified in available documentation.

Q: What is the operating temperature range for substitute parts?

A: Most substitute parts operate from -50°C to 175°C (TJ). The main part 5KP90CA-B and direct equivalent 5KP90CA operate from -55°C to 175°C, providing a 5°C lower minimum temperature specification. P6KE110CA operating temperature range is not specified.

Q: Which substitute part has the highest clamping voltage?

A: 1.5KE110CA and P6KE110CA both have a maximum clamping voltage of 152V, compared to 146V for 5KP90CA-B. This 6V difference may be significant in applications with tight voltage tolerance requirements.