B20J1K2 Equivalent & Substitute Parts Reference

Part Overview

The B20J1K2 is a 1.2 kOhms ±5% 20W through-hole wirewound resistor manufactured by Ohmite in the Brown Devil® 200 series. This axial-package component features flame retardant coating and safety construction, designed for high-power applications requiring reliable thermal performance. The part is currently active in production. Substitute parts are identified when packaging configurations or compliance requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

B20J1K2

OhmiteIn Stock: 1066B20J1K2 Datasheet

Current PartRFQ

B20J1K2E

OhmiteIn Stock: 989B20J1K2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The B20J1K2E is classified as a parametric equivalent to the B20J1K2. Substitution is valid based on the following criteria:

• Electrical Parameters: Resistance (1.2 kOhms), tolerance (±5%), and power rating (20W) are identical
• Mechanical Parameters: Package type (axial), physical dimensions (0.437" Dia x 2.000" L), and termination count (2) are identical
• Material Composition: Wirewound construction with flame retardant coating and safety features match exactly
• Thermal Characteristics: Temperature coefficient (±260ppm/°C) is identical
• Differentiation: Packaging configuration (bulk vs. standard) and RoHS compliance status differ between the two parts

Parameter Comparison

Engineering Selection Recommendations

Both the B20J1K2 and B20J1K2E are active production parts from Ohmite's Brown Devil® 200 series with identical electrical and mechanical specifications. Selection between these parts is determined by compliance and packaging requirements:

• B20J1K2: Select when RoHS non-compliant components are acceptable and standard packaging is required
• B20J1K2E: Select when ROHS3 compliance is mandated or bulk packaging is preferred for high-volume applications

Both parts are suitable for direct substitution in circuits requiring 1.2 kOhms ±5% 20W axial wirewound resistors with flame retardant coating and safety construction.

Frequently Asked Questions (FAQ)

Q: Can B20J1K2E replace B20J1K2 in all applications? A: Yes. The B20J1K2E is electrically and mechanically identical to the B20J1K2. The primary differences are packaging configuration (bulk vs. standard) and RoHS compliance status. Substitution is valid provided compliance requirements are met.

Q: What is the difference between the packaging configurations? A: B20J1K2 uses standard packaging, while B20J1K2E uses bulk packaging. Both contain identical components; packaging selection depends on order quantity and handling requirements.

Q: Are the physical dimensions identical between these parts? A: Yes. Both parts measure 0.437" diameter by 2.000" length (11.11mm x 50.80mm) and are housed in axial packages with two terminations.

Q: Does RoHS compliance affect electrical performance? A: No. ROHS3 compliance in the B20J1K2E does not alter electrical characteristics. Resistance, tolerance, power rating, and temperature coefficient remain identical to the B20J1K2.

Q: Can these parts be used interchangeably on PCBs? A: Yes. Identical axial package dimensions and termination configuration allow direct board-level substitution without layout modifications.