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RCS3216F2551CS Equivalent & Substitute Parts
Part Overview
The RCS3216F2551CS is a 2.55 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties with an operating temperature range of -55°C to 155°C. The part is currently active in production with 831 pieces in stock inventory.
Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 2.55 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.25W (1/4W) |
| Package / Case | 1206 (3216 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS3216F2551CS is determined by strict equivalence across the following parameters:
Electrical Specifications:
- Resistance value: 2.55 kOhms
- Tolerance: ±1%
- Power rating: 0.25W (1/4W)
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
Mechanical Specifications:
- Package type: 1206 (3216 Metric)
- Number of terminations: 2
- Physical dimensions compatible with 1206 footprint
Compliance & Environmental:
- RoHS3 compliance
- Moisture Sensitivity Level 1
- REACH unaffected status
All identified substitute parts meet these criteria. Variations in specific features (such as automotive AEC-Q200 certification or anti-sulfur coating) represent enhancements that do not prevent substitution but may offer additional benefits for specific applications.
Parameter Comparison
| Parameter | RCS3216F2551CS (Samsung) | AC1206FR-072K55L (YAGEO) | CRCW12062K55FKEA (Vishay Dale) | ERJ-8ENF2551V (Panasonic) | RC1206FR-072K55L (YAGEO) |
|---|---|---|---|---|---|
| Resistance | 2.55 kOhms | 2.55 kOhms | 2.55 kOhms | 2.55 kOhms | 2.55 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.25W | 0.25W | 0.25W | 0.25W | 0.25W |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C |
| Number of Terminations | 2 | 2 | 2 | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Not For New Designs | Active |
Engineering Selection Recommendations
Primary Selection (Active Status):
AC1206FR-072K55L (YAGEO), CRCW12062K55FKEA (Vishay Dale), and RC1206FR-072K55L (YAGEO) are all active products with full production support. These three parts are functionally equivalent to the RCS3216F2551CS and suitable for new designs.
AC1206FR-072K55L and CRCW12062K55FKEA both carry automotive AEC-Q200 certification, providing additional qualification for automotive applications. CRCW12062K55FKEA offers the highest inventory availability at 18,477 pieces.
RC1206FR-072K55L provides a direct equivalent without automotive-specific certification, suitable for general industrial and consumer applications.
Secondary Selection (Legacy Status):
ERJ-8ENF2551V (Panasonic) is designated "Not For New Designs" and should be used only for legacy system maintenance or repair applications where the original part specification is required. This part carries AEC-Q200 certification and maintains full electrical and mechanical equivalence.
All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.
Frequently Asked Questions (FAQ)
Q: Can AC1206FR-072K55L replace RCS3216F2551CS in existing designs?
A: Yes. AC1206FR-072K55L meets all electrical specifications (2.55 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and mechanical requirements (1206 package, 2 terminations). Both are ROHS3 compliant with MSL 1 rating. The primary difference is AC1206FR-072K55L includes automotive AEC-Q200 certification.
Q: What is the difference between CRCW12062K55FKEA and RC1206FR-072K55L?
A: Both parts are electrically and mechanically equivalent to RCS3216F2551CS. CRCW12062K55FKEA (Vishay Dale) includes automotive AEC-Q200 certification and has higher inventory availability (18,477 pieces). RC1206FR-072K55L (YAGEO) is a general-purpose equivalent without automotive certification. Selection depends on application requirements and supply chain considerations.
Q: Why is ERJ-8ENF2551V marked "Not For New Designs"?
A: ERJ-8ENF2551V is a legacy product from Panasonic Electronic Components. While it maintains full electrical and mechanical equivalence to RCS3216F2551CS, the manufacturer has discontinued active development. This part should be used only for maintenance of existing systems. For new designs, select from active products: AC1206FR-072K55L, CRCW12062K55FKEA, or RC1206FR-072K55L.
Q: Are all substitute parts available in Tape & Reel packaging?
A: Yes. All identified substitute parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The original RCS3216F2551CS packaging format is not specified in the provided data.
Q: Do physical dimensions vary between substitute parts?
A: Minor dimensional variations exist within the 1206 package specification. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), and height ranges from 0.024" to 0.028" (0.60mm to 0.70mm). These variations remain within standard 1206 footprint tolerances and do not affect PCB compatibility or circuit performance.
Q: Which substitute part has the highest inventory availability?
A: CRCW12062K55FKEA (Vishay Dale) has 18,477 pieces in stock, followed by ERJ-8ENF2551V (Panasonic) with 84,550 pieces. However, ERJ-8ENF2551V is not recommended for new designs. Among active products, CRCW12062K55FKEA offers the best supply position.
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