RP164PJ394CS Equivalent & Substitute Parts

Part Overview

The RP164PJ394CS is a 390k Ohm isolated resistor array manufactured by Samsung Electro-Mechanics. This surface mount component features four independent resistors in a 1206 (3216 Metric) convex package with long side terminals. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RP164PJ394CS

Samsung Electro-MechanicsIn Stock: 1179RP164PJ394CS Datasheet

Current PartRFQ

RAVF164DJT390K

Stackpole Electronics IncIn Stock: 805RAVF164DJT390K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP164PJ394CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 390k Ohm
• Tolerance: ±5%
• Number of resistors: 4
• Circuit type: Isolated
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Package type: 1206 (3216 Metric), Convex, Long Side Terminals
• Number of pins: 8
• Physical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm)

Allowable Variation Parameters:

• Power per element: Substitute must meet or exceed the original specification (62.5mW minimum)
• Height - Seated (Max): Substitute must not exceed 0.024" (0.61mm)
• Compliance certifications: RoHS3, MSL 1, REACH Unaffected

The RAVF164DJT390K from Stackpole Electronics Inc satisfies all mandatory parameters and exceeds the power rating specification, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RAVF164DJT390K is the direct equivalent substitute for the obsolete RP164PJ394CS. Selection is based on the following engineering criteria:

Functional Equivalence: All critical electrical parameters match exactly, including resistance value, tolerance, temperature coefficient, and operating temperature range. The isolated circuit topology with four independent resistors is preserved.

Package Compatibility: Both components utilize identical 1206 (3216 Metric) convex packages with long side terminals. Physical dimensions and pin configurations are equivalent, ensuring direct PCB layout compatibility without redesign.

Performance Enhancement: The RAVF164DJT390K provides 100mW power per element compared to the original 62.5mW specification, representing a 60% increase in power handling capability. This enhancement provides additional thermal margin without introducing any compatibility issues.

Compliance Status: The substitute maintains ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the original part's regulatory requirements. The Stackpole component includes AEC-Q200 automotive qualification, extending application scope beyond the original specification.

Supply Continuity: The RAVF164DJT390K is actively manufactured with confirmed inventory availability (759 pieces), ensuring long-term procurement reliability compared to the obsolete Samsung part.

Frequently Asked Questions (FAQ)

Q: Can the RAVF164DJT390K be used as a direct replacement for the RP164PJ394CS without PCB modifications?

A: Yes. Both components share identical package types, physical dimensions, pin configurations, and electrical specifications. No PCB layout changes are required for substitution.

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

A: The increased power rating provides additional thermal headroom during operation. This does not affect circuit functionality but reduces thermal stress on the component, potentially extending operational life in high-temperature environments.

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

A: Both parts are ROHS3 compliant with MSL 1 ratings and REACH unaffected status. The RAVF164DJT390K includes additional AEC-Q200 automotive qualification, which is not a disadvantage for non-automotive applications.

Q: Why is the original RP164PJ394CS listed as obsolete?

A: Product obsolescence is determined by the manufacturer. The Samsung part is no longer in active production. The Stackpole equivalent remains actively manufactured and is the recommended source for new designs and replacements.

Q: Are the physical dimensions truly identical between the two parts?

A: Yes. Both components measure 0.126" L x 0.063" W (3.20mm x 1.60mm) with maximum seated heights of 0.024" (0.61mm and 0.60mm respectively). These dimensions are within standard manufacturing tolerances and are functionally equivalent for PCB assembly.

Q: What packaging options are available for the RAVF164DJT390K?

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

Q: Can both parts be used interchangeably in existing inventory?

A: Yes. The electrical and mechanical specifications are equivalent, allowing both parts to function identically in the same circuit application. However, procurement should transition to the active RAVF164DJT390K to ensure long-term supply availability.