OY821K Equivalent & Substitute Parts

Part Overview

The OY821K is a 820 Ohms ±10% 2W through-hole resistor with axial leads, manufactured by Ohmite. This ceramic composition resistor features moisture resistance and pulse withstanding capabilities, designed for applications requiring reliable performance across a wide operating temperature range of -40°C to 220°C. The OY821K is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and design continuity.

Substiute Parts

OY821K

OhmiteIn Stock: 1057OY821K Datasheet

Current PartRFQ

OY821KE

OhmiteIn Stock: 1428OY821KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The OY821KE qualifies as a direct substitute for the OY821K based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Resistance value: 820 Ohms (exact match)
• Tolerance: ±10% (exact match)
• Power rating: 2W (exact match)
• Composition: Ceramic (exact match)
• Package type: Axial (exact match)
• Physical dimensions: 0.276" Dia x 0.748" L (exact match)
• Operating temperature range: -40°C ~ 220°C (exact match)
• Temperature coefficient: -1000 / -1600 ppm/°C (exact match)
• Features: Moisture Resistant, Pulse Withstanding (exact match)

The OY821KE maintains all functional and physical specifications of the OY821K, enabling direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The OY821KE is the appropriate substitute for the obsolete OY821K. Both parts are manufactured by Ohmite and share identical electrical specifications and physical dimensions. The primary distinction is product status and regulatory compliance: the OY821K is obsolete, while the OY821KE is active and ROHS3 compliant. For new designs and ongoing procurement, the OY821KE should be selected to ensure supply chain continuity and compliance with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the OY821KE be used as a direct replacement for the OY821K in existing designs?

A: Yes. The OY821KE is electrically and mechanically identical to the OY821K. All specifications including resistance, tolerance, power rating, package type, and operating temperature range are equivalent, enabling direct substitution without circuit modification.

Q: What is the difference between the OY821K and OY821KE?

A: The OY821K is obsolete, while the OY821KE is an active product. The OY821KE is ROHS3 compliant, whereas the OY821K is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The OY821K and OY821KE share the same axial package type and physical dimensions (0.276" Dia x 0.748" L). The primary packaging difference is that the OY821KE is supplied in bulk packaging, while the OY821K packaging specification was not provided.

Q: What applications are suitable for the OY821KE?

A: The OY821KE is suitable for any application previously using the OY821K. The 2W ceramic axial resistor with moisture resistance and pulse withstanding capabilities is appropriate for industrial, automotive, and consumer electronics applications operating within the -40°C to 220°C temperature range.

Q: Is the OY821KE available for immediate procurement?

A: Availability is subject to current inventory levels. The OY821KE is an active product manufactured by Ohmite and should be available through authorized distributors.