RP164PJ121CS Equivalent & Substitute Parts

Part Overview

The RP164PJ121CS is a 4-resistor isolated network array manufactured by Samsung Electro-Mechanics, featuring 120 Ohm resistors with ±5% tolerance in a 1206 (3216 Metric) surface mount package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part delivers 62.5mW power per element and operates across the temperature range of -55°C to 155°C with a temperature coefficient of ±200ppm/°C.

Substiute Parts

RP164PJ121CS

Samsung Electro-MechanicsIn Stock: 1091RP164PJ121CS Datasheet

Current PartRFQ

RAVF164DJT120R

Stackpole Electronics IncIn Stock: 987RAVF164DJT120R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RP164PJ121CS is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Resistance value: 120 Ohm (exact match required)
• Tolerance: ±5% (exact match required)
• Number of resistors: 4 (exact match required)
• Circuit type: Isolated (exact match required)
• Package / Case: 1206 (3216 Metric), Convex, Long Side Terminals (exact match required)
• Number of pins: 8 (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match or better required)
• Mounting type: Surface Mount (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Secondary Consideration:

• Power per element: The substitute may exceed the original specification (higher power rating is acceptable for backward compatibility)

The RAVF164DJT120R from Stackpole Electronics Inc qualifies as a direct substitute based on full alignment with all primary criteria and an enhanced power rating of 100mW per element.

Parameter Comparison

Engineering Selection Recommendations

RAVF164DJT120R Selection Basis:

The RAVF164DJT120R is a qualified substitute for the obsolete RP164PJ121CS based on the following engineering factors:

1. Electrical Equivalence: All critical electrical parameters match exactly, including resistance value, tolerance, temperature coefficient, and operating temperature range.

2. Mechanical Compatibility: Package dimensions, pin configuration, and mounting type are identical, ensuring direct PCB compatibility without layout modifications.

3. Compliance Alignment: Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent supply chain and storage requirements.

4. Enhanced Performance: The RAVF164DJT120R provides 100mW power per element versus 62.5mW in the original part, offering improved thermal margin without introducing incompatibility.

5. Active Product Status: The Stackpole part is currently in active production, ensuring long-term availability and supply continuity compared to the obsolete Samsung component.

6. Automotive Qualification: The RAVF164DJT120R carries AEC-Q200 qualification and automotive-grade designation, supporting applications requiring automotive-level reliability standards.

Frequently Asked Questions (FAQ)

Q: Can the RAVF164DJT120R be used as a direct replacement for the RP164PJ121CS without PCB modifications?

A: Yes. Both components share identical package dimensions (1206 / 3216 Metric), pin count (8), and terminal configuration (Convex, Long Side Terminals). No PCB layout changes are required.

Q: What is the significance of the higher power rating (100mW vs. 62.5mW) in the substitute part?

A: The increased power rating in the RAVF164DJT120R provides additional thermal headroom and does not introduce incompatibility. The substitute can safely operate in applications designed for the original 62.5mW specification.

Q: Are there compliance or certification differences between the two parts?

A: Both components are ROHS3 compliant with identical moisture sensitivity levels (MSL 1). The RAVF164DJT120R includes additional AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Q: How do the temperature coefficients compare?

A: Both parts specify ±200ppm/°C temperature coefficient and operate across the identical range of -55°C to 155°C, ensuring equivalent thermal performance.

Q: What packaging options are available for the RAVF164DJT120R?

A: The substitute is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly operations.

Q: Is the RAVF164DJT120R suitable for applications originally designed for the Samsung RP164PJ121CS?

A: Yes. Electrical, mechanical, and thermal specifications are equivalent or superior. The part is suitable for direct substitution in all applications where the original component was specified.