3KP210C Equivalent & Substitute Parts

Part Overview

The 3KP210C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 210V reverse standoff voltage rating and a 366.98V maximum clamping voltage with 8.6A peak pulse current capability. The 3KP210C is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where this protection topology is required.

Substiute Parts

3KP210C

Littelfuse Inc.In Stock: 9313KP210C Datasheet

Current PartRFQ

5KP210CA

Littelfuse Inc.In Stock: 26015KP210CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3KP210C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 210V
• Bidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C ~ 175°C (TJ)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Supplier Device Package: P600

The 5KP210CA qualifies as a direct substitute based on matching all critical electrical standoff voltage specifications and identical mechanical packaging. While the 5KP210CA exhibits higher peak pulse current (14.6A versus 8.6A) and greater peak pulse power (5000W versus 3000W), these represent enhanced performance characteristics within the same protection topology and package form factor, making it suitable for direct replacement in applications requiring the 210V protection level.

Parameter Comparison

Engineering Selection Recommendations

The 5KP210CA is the qualified substitute for the obsolete 3KP210C. Selection is based on the following engineering factors:

Product Status: The 3KP210C is obsolete, while the 5KP210CA maintains active product status with current manufacturing availability (2500 pcs in stock versus 875 pcs for the legacy part).

Regulatory Compliance: Both components are ROHS3 compliant and carry identical environmental certifications (MSL 1 - Unlimited, ECCN EAR99, HTSUS 8541.10.0080).

Electrical Equivalence: Both parts maintain the identical 210V reverse standoff voltage specification, ensuring circuit protection thresholds remain unchanged. The 5KP210CA's enhanced current and power ratings (14.6A and 5000W respectively) provide superior transient suppression capability without compromising the original design intent.

Mechanical Compatibility: Identical P600 axial through-hole packaging ensures direct PCB footprint compatibility with no layout modifications required.

Frequently Asked Questions (FAQ)

Q: Can the 5KP210CA be used as a direct replacement for the 3KP210C in existing designs?

A: Yes. Both components share identical reverse standoff voltage (210V), bidirectional channel configuration (1), zener type classification, operating temperature range (-55°C to 175°C), and P600 axial through-hole package. Direct PCB substitution is mechanically and electrically compatible.

Q: What are the key differences between the 3KP210C and 5KP210CA?

A: The primary differences are product status (obsolete versus active) and performance ratings. The 5KP210CA provides higher peak pulse current (14.6A versus 8.6A) and greater peak pulse power (5000W versus 3000W). The 5KP210CA also exhibits a lower maximum clamping voltage (349.5V versus 366.98V), representing improved voltage regulation characteristics.

Q: Are there any packaging considerations when substituting these parts?

A: No. Both components use identical P600 axial through-hole packaging. No PCB layout modifications, footprint changes, or mechanical adjustments are necessary.

Q: What is the inventory status for these parts?

A: The 3KP210C (obsolete) has 875 pcs available. The 5KP210CA (active) has 2500 pcs available in cut tape packaging, providing superior long-term supply chain continuity.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 3KP210C and 5KP210CA are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.