5KP90C Equivalent & Substitute Parts

Part Overview

The 5KP90C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a P600 axial package with a 90V reverse standoff voltage and 5000W peak pulse power rating. The 5KP90C is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing system designs and maintenance applications. Active alternatives with comparable electrical characteristics and package compatibility are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	90	V
Voltage - Breakdown (Min)	94.95	V
Voltage - Clamping (Max) @ Ipp	153.3	V
Power - Peak Pulse	5000	W
Mounting Type	Through Hole	—
Package / Case	P600, Axial	—
Operating Temperature	-55 to 175	°C (TJ)
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution for the 5KP90C is determined by the following critical parameters: reverse standoff voltage (90V nominal), peak pulse power rating (5000W), package type (P600 axial through-hole), bidirectional operation, and zener diode type. Substitute parts are grouped into two categories based on package compatibility and electrical performance alignment.

Category 1: Direct Package Equivalents (P600 Axial) Parts maintaining the P600 axial package and 5000W power rating provide the closest form-factor and thermal performance match. These include the 5KP90CA and 5KP90CE3/TR13, both with 90V reverse standoff voltage specifications.

Category 2: Alternative Package Substitutes (DO-201 and DO-15) Parts with different package types (DO-201AA and DO-15) offer lower power ratings (1500W and 600W respectively) but maintain comparable voltage characteristics within the 85.5V to 94V reverse standoff range. These are suitable for applications where power dissipation requirements are lower than the original 5000W specification.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package / Case	Product Status
5KP90C	Littelfuse Inc.	90V	94.95V	153.3V	—	5000W	P600, Axial	Obsolete
5KP90CA	Littelfuse Inc.	90V	100V	146V	34.9A	5000W	P600, Axial	Active
5KP90CE3/TR13	Microchip Technology	90V	100V	160V	31.3A	5000W	P600, Axial	Active
1.5KE100CA	Diotec Semiconductor	85.5V	95V	137V	11.4A	1500W	DO-201AA, Axial	Active
1.5KE110CA	Taiwan Semiconductor Corporation	94V	105V	152V	10.3A	1500W	DO-201AA, Axial	Active
P6KE91CA	Fairchild Semiconductor	77.8V	86.5V	125V	5A	600W	DO-15, Axial	Active
P6KE100CA	Fairchild Semiconductor	85.5V	95V	137V	4.5A	600W	DO-15, Axial	Active
P6KE110CA	Taiwan Semiconductor Corporation	94V	105V	152V	4A	600W	DO-15, Axial	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement)

The 5KP90CA (Littelfuse Inc., Active status) is the primary equivalent for the 5KP90C. Both parts share identical reverse standoff voltage (90V), package type (P600 axial), power rating (5000W), and operating temperature range (-55°C to 175°C). The 5KP90CA maintains full form-factor compatibility and thermal performance characteristics. RoHS3 compliance and MSL Level 1 certification are consistent with the original specification.

The 5KP90CE3/TR13 (Microchip Technology, Active status) provides an alternative direct replacement with the same P600 package and 5000W power rating. This part offers a slightly higher clamping voltage (160V vs. 153.3V) and comparable peak pulse current (31.3A vs. unspecified for the original). RoHS3 compliance and REACH Unaffected status align with modern regulatory requirements.

Secondary Substitutes (Lower Power Applications)

The 1.5KE100CA and 1.5KE110CA are suitable for applications where peak pulse power requirements do not exceed 1500W. Both maintain through-hole mounting and axial package orientation (DO-201AA). The 1.5KE110CA (Taiwan Semiconductor Corporation) provides the closest voltage alignment with 94V reverse standoff and 152V clamping voltage. RoHS3 compliance and REACH Unaffected status are confirmed.

The P6KE series (P6KE91CA, P6KE100CA, P6KE110CA) are applicable only for applications requiring 600W or less peak pulse power. These parts use the smaller DO-15 package and are not recommended as direct replacements for high-power applications. The P6KE110CA offers the best voltage match (94V reverse standoff, 152V clamping) among this series.

Compliance and Availability

All recommended active substitutes maintain RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings. Inventory availability is confirmed for all active alternatives, with 5KP90CA showing the highest stock level (4405 pcs).

Frequently Asked Questions (FAQ)

Q: Can the 5KP90CA directly replace the 5KP90C in existing designs?

A: Yes. The 5KP90CA is a direct replacement with identical reverse standoff voltage (90V), package type (P600 axial), power rating (5000W), and operating temperature range. No circuit modifications are required. The primary difference is product status: 5KP90C is obsolete while 5KP90CA is active with confirmed inventory availability.

Q: What is the difference between the 5KP90CA and 5KP90CE3/TR13?

A: Both parts share the P600 package and 5000W power rating with 90V reverse standoff voltage. The 5KP90CE3/TR13 has a slightly higher clamping voltage (160V vs. 146V) and is supplied in Tape & Reel packaging, while the 5KP90CA is available in Cut Tape. Selection depends on packaging requirements and acceptable clamping voltage tolerance for the application.

Q: Can I use the 1.5KE series or P6KE series as replacements?

A: The 1.5KE and P6KE series are suitable only if your application requires lower peak pulse power (1500W or 600W respectively). These parts have different package types (DO-201AA or DO-15) and cannot be directly substituted in designs requiring the P600 package form factor or 5000W power dissipation capability. Verify your circuit's actual power requirements before selecting these alternatives.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant. The 1.5KE100CA from Diotec Semiconductor shows "Not applicable" RoHS status due to manufacturer classification, but this does not indicate non-compliance. Confirm specific RoHS requirements with your procurement or compliance department if needed.

Q: What packaging options are available for the 5KP90C substitutes?

A: The 5KP90CA is available in Cut Tape (CT) packaging. The 5KP90CE3/TR13 is supplied in Tape & Reel (TR) format. Both maintain the P600 axial through-hole package. The 1.5KE series uses DO-201AA axial packages, and the P6KE series uses DO-15 axial packages. Verify your assembly equipment compatibility with the selected packaging format.

Q: Is the operating temperature range consistent across all substitutes?

A: The 5KP90CA and 5KP90CE3/TR13 maintain the full -55°C to 175°C operating range. The 1.5KE100CA operates from -50°C to 175°C (5°C narrower at the low end). The P6KE110CA does not specify an operating temperature range in the provided data. Confirm temperature requirements for your application before final part selection.

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