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RN104PF184CS Equivalent & Substitute Parts
Part Overview
The RN104PF184CS is a 4-resistor isolated network array manufactured by Samsung Electro-Mechanics, featuring 180kΩ ±1% resistance elements with 62.5mW power per element rating. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The part is housed in a 0804 surface mount package with concave, long side terminals and operates across the industrial temperature range of -55°C to 155°C.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance Value | 180kΩ |
| Tolerance | ±1% |
| Number of Resistors | 4 |
| Circuit Type | Isolated |
| Power Per Element | 62.5mW |
| Temperature Coefficient | ±200ppm/°C |
| Number of Pins | 8 |
| Package Type | 0804 Surface Mount |
| Operating Temperature Range | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RN104PF184CS is determined by strict equivalence across the following critical parameters:
- Resistance Value: 180kΩ (exact match required)
- Tolerance: ±1% (exact match required)
- Number of Resistors: 4 elements (exact match required)
- Circuit Type: Isolated configuration (exact match required)
- Power Per Element: 62.5mW (exact match required)
- Temperature Coefficient: ±200ppm/°C (exact match required)
- Package Footprint: 0804 surface mount, 8-pin configuration (exact match required)
- Operating Temperature Range: -55°C to 155°C (exact match required)
- Compliance Standards: RoHS3 compliant, REACH unaffected (exact match required)
The RAVF104DFT180K from Stackpole Electronics Inc satisfies all substitution criteria. The primary physical distinction is the terminal geometry: the main part features concave terminals while the substitute features convex terminals. Both configurations maintain identical electrical performance and PCB footprint compatibility within the 0804 package specification.
Parameter Comparison
| Parameter | RN104PF184CS (Samsung) | RAVF104DFT180K (Stackpole) | Match Status |
|---|---|---|---|
| Resistance Value | 180kΩ | 180kΩ | Equivalent |
| Tolerance | ±1% | ±1% | Equivalent |
| Number of Resistors | 4 | 4 | Equivalent |
| Circuit Type | Isolated | Isolated | Equivalent |
| Power Per Element | 62.5mW | 62.5mW | Equivalent |
| Temperature Coefficient | ±200ppm/°C | ±200ppm/°C | Equivalent |
| Number of Pins | 8 | 8 | Equivalent |
| Package Type | 0804, Concave, Long Side Terminals | 0804, Convex, Long Side Terminals | Functionally Equivalent |
| Size / Dimension | 0.079" L x 0.039" W (2.00mm x 1.00mm) | 0.079" L x 0.039" W (2.00mm x 1.00mm) | Equivalent |
| Height - Seated (Max) | 0.020" (0.50mm) | 0.020" (0.50mm) | Equivalent |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| REACH Status | REACH Unaffected | REACH Unaffected | Equivalent |
| Product Status | Obsolete | Active | Substitute is Active |
Engineering Selection Recommendations
The RAVF104DFT180K is a direct functional equivalent to the RN104PF184CS for applications requiring a 4-element 180kΩ isolated resistor network array in 0804 surface mount packaging. Selection of the Stackpole substitute is supported by the following factors:
Product Status: The RAVF104DFT180K maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete RN104PF184CS.
Compliance Alignment: Both parts maintain identical RoHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system support.
Automotive Qualification: The RAVF104DFT180K carries AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.
Electrical Equivalence: All critical electrical parameters—resistance value, tolerance, power rating, temperature coefficient, and operating temperature range—are identical between the main part and substitute.
Physical Compatibility: The 0804 package footprint, pin count, and seated height are identical. Terminal geometry variation (concave versus convex) does not affect PCB assembly compatibility or electrical performance within standard surface mount assembly processes.
Frequently Asked Questions (FAQ)
Q: Can the RAVF104DFT180K replace the RN104PF184CS in existing designs?
A: Yes. The RAVF104DFT180K is electrically and mechanically equivalent. All critical parameters—resistance value, tolerance, power rating, temperature coefficient, and package footprint—are identical. The terminal geometry difference (concave versus convex) does not affect PCB assembly or electrical performance.
Q: What is the significance of the terminal geometry difference?
A: Terminal geometry (concave versus convex) is a manufacturing variation within the 0804 package specification. Both configurations maintain identical electrical contact characteristics and are compatible with standard surface mount assembly processes. This difference does not impact circuit performance or reliability.
Q: Why is the RN104PF184CS listed as obsolete?
A: Obsolete status indicates that Samsung Electro-Mechanics has discontinued production of this part number. The RAVF104DFT180K from Stackpole Electronics Inc provides active production continuity for the same functional specification.
Q: Are there any compliance differences between the two parts?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1). The RAVF104DFT180K additionally carries AEC-Q200 automotive qualification.
Q: What packaging formats are available for the RAVF104DFT180K?
A: The RAVF104DFT180K is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations.
Q: Are the electrical characteristics identical between both parts?
A: Yes. Both parts feature 180kΩ ±1% resistance, 62.5mW power per element, ±200ppm/°C temperature coefficient, and -55°C to 155°C operating temperature range. The isolated circuit configuration with 4 resistor elements and 8-pin configuration is identical.
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