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RCS3216F6654CS Equivalent & Substitute Parts
Part Overview
The RCS3216F6654CS is a 6.65 MOhms ±1% 0.25W chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant properties, designed for applications requiring high-value precision resistors with enhanced environmental protection. The part maintains Active product status with 1104 units currently in stock. Substitute parts are identified to address inventory availability, supply chain continuity, or specific packaging requirements while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Resistance Value | 6.65 MOhms | Critical - must match exactly |
| Tolerance | ±1% | Critical - determines circuit accuracy |
| Power Rating | 0.25W (1/4W) | Critical - thermal performance requirement |
| Package Type | 1206 (3216 Metric) | Critical - PCB footprint compatibility |
| Composition | Thick Film | Important - electrical characteristics |
| Temperature Coefficient | ±100ppm/°C | Important - stability over temperature range |
| Operating Temperature Range | -55°C ~ 155°C | Important - environmental compatibility |
| RoHS Status | ROHS3 Compliant | Important - regulatory compliance |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | Important - handling and storage |
Substitute Part Grouping Explanation
Substitute parts for the RCS3216F6654CS are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:
Critical Matching Parameters:
- Resistance value: 6.65 MOhms (exact match required)
- Tolerance: ±1% (exact match required)
- Power rating: 0.25W / 1/4W (exact match required)
- Package: 1206 (3216 Metric) (exact match required)
- Composition: Thick Film (exact match required)
Important Matching Parameters:
- Temperature coefficient: ±100ppm/°C (exact match required)
- Operating temperature range: -55°C ~ 155°C (exact match required)
- RoHS3 compliance (required for regulatory alignment)
- MSL rating: 1 (Unlimited) (exact match required)
The RC1206FR-076M65L from YAGEO meets all critical and important parameters, qualifying it as a direct electrical and mechanical substitute. Minor dimensional variations (length 3.10mm vs 3.20mm, height 0.65mm vs 0.66mm) remain within acceptable PCB assembly tolerances for 1206 package specifications.
Parameter Comparison
| Parameter | RCS3216F6654CS (Samsung) | RC1206FR-076M65L (YAGEO) | Match Status |
|---|---|---|---|
| Manufacturer | Samsung Electro-Mechanics | YAGEO | Different manufacturer |
| Resistance Value | 6.65 MOhms | 6.65 MOhms | Exact match |
| Tolerance | ±1% | ±1% | Exact match |
| Power Rating | 0.25W (1/4W) | 0.25W (1/4W) | Exact match |
| Composition | Thick Film | Thick Film | Exact match |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | Exact match |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | Exact match |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) | Exact match |
| Size - Length | 0.126" (3.20mm) | 0.122" (3.10mm) | Within tolerance |
| Size - Width | 0.063" (1.60mm) | 0.063" (1.60mm) | Exact match |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.026" (0.65mm) | Within tolerance |
| Number of Terminations | 2 | 2 | Exact match |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Exact match |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | MSL 1 (Unlimited) | Exact match |
| REACH Status | REACH Unaffected | REACH Unaffected | Exact match |
| ECCN | EAR99 | EAR99 | Exact match |
| HTSUS Code | 8533.21.0030 | 8533.21.0030 | Exact match |
| Product Status | Active | Active | Both active |
| Packaging | Not specified | Tape & Reel (TR) | Different packaging format |
Engineering Selection Recommendations
Primary Selection - RCS3216F6654CS: Select the RCS3216F6654CS when Samsung Electro-Mechanics supply is available and packaging format is not a constraint. This part carries Active product status with established inventory (1104 units in stock). Anti-sulfur properties provide additional environmental protection beyond standard moisture resistance.
Substitute Selection - RC1206FR-076M65L: Select the RC1206FR-076M65L from YAGEO when supply continuity requires an alternative source or when Tape & Reel packaging is preferred for automated assembly processes. This part maintains identical electrical specifications and regulatory compliance (ROHS3, REACH Unaffected, EAR99). Higher inventory availability (4145 units) supports extended production runs. Dimensional variations (3.10mm length vs 3.20mm, 0.65mm height vs 0.66mm) fall within standard 1206 package tolerances and present no PCB assembly compatibility issues.
Compliance Verification: Both parts satisfy ROHS3 compliance, REACH unaffected status, and EAR99 export classification. MSL 1 (Unlimited) rating eliminates moisture sensitivity handling constraints for both options.
Frequently Asked Questions (FAQ)
Q: Can RC1206FR-076M65L replace RCS3216F6654CS in all applications?
A: Yes. Both parts share identical electrical parameters (6.65 MOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C operating range) and package type (1206/3216 Metric). Minor dimensional differences (0.1mm length, 0.01mm height) remain within 1206 package specifications and do not affect PCB footprint compatibility or assembly processes.
Q: What is the difference in packaging between these parts?
A: The RCS3216F6654CS packaging format is not specified in available data. The RC1206FR-076M65L is supplied in Tape & Reel (TR) format, which is standard for automated pick-and-place assembly. Tape & Reel packaging is preferred for high-volume production but may require different handling equipment than alternative formats.
Q: Are there any environmental or regulatory differences?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Both carry MSL 1 (Unlimited) moisture sensitivity ratings, eliminating special storage or handling requirements. The RCS3216F6654CS includes anti-sulfur properties in addition to moisture resistance; the RC1206FR-076M65L specifies moisture resistance only.
Q: Which part should be selected for new designs?
A: Selection depends on supply chain strategy and assembly process requirements. For designs requiring anti-sulfur protection, specify RCS3216F6654CS. For designs compatible with standard moisture-resistant thick film resistors and requiring Tape & Reel packaging, RC1206FR-076M65L is acceptable. Both parts maintain Active product status and support long-term availability.
Q: Are tolerance and temperature coefficient specifications identical?
A: Yes. Both parts specify ±1% tolerance and ±100ppm/°C temperature coefficient. Operating temperature range is identical: -55°C to 155°C. These parameters determine circuit accuracy and stability; matching values confirm direct substitution capability.
Q: What inventory considerations apply to these parts?
A: RCS3216F6654CS has 1104 units in current stock. RC1206FR-076M65L has 4145 units in current stock. Higher YAGEO inventory may support extended lead times or large production volumes. Both parts maintain Active product status, indicating ongoing manufacturer support and availability.
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