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RC1608F1621CS Equivalent & Substitute Parts Reference
Part Overview
The RC1608F1621CS is a 1.62 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This surface mount device is rated for 0.1W (1/10W) power dissipation and operates across the temperature range of -55°C to 155°C. The component is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, making it suitable for general industrial and consumer electronics applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and compliance certifications to ensure direct functional interchangeability in circuit designs.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 1.62 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Packaging Type | Tape & Reel (TR) |
Substitute Part Grouping Explanation
Substitute parts for the RC1608F1621CS are classified based on strict electrical and mechanical parameter matching. All substitute candidates must satisfy the following core criteria:
Mandatory Matching Parameters:
- Resistance value: 1.62 kOhms
- Tolerance: ±1%
- Power rating: 0.1W (1/10W)
- Package: 0603 (1608 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
- Moisture sensitivity level: 1 (Unlimited)
- Number of terminations: 2
Compliance Considerations: Substitute parts are grouped into two categories: (1) Standard industrial-grade components with ROHS3 compliance and REACH unaffected status, matching the original part's compliance profile; (2) Automotive-grade components with AEC-Q200 certification, which exceed the original specification but remain functionally compatible for applications requiring enhanced reliability.
Parameter Comparison
| Manufacturer | Part Number | Resistance | Tolerance | Power | Package | Temp Coeff | Operating Temp | RoHS Status | AEC-Q200 | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| Samsung Electro-Mechanics | RC1608F1621CS | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | No | 1133 Pcs |
| Bourns Inc. | CR0603-FX-1621ELF | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | No | 109993 Pcs |
| YAGEO | RC0603FR-071K62L | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | No | 315644 Pcs |
| YAGEO | AC0603FR-071K62L | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | Yes | 5116 Pcs |
| Vishay Dale | CRCW06031K62FKEA | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | Yes | 50957 Pcs |
| Vishay Dale | CRCW06031K62FKTA | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | RoHS Non-compliant | Yes | 6116 Pcs |
| Panasonic Electronic Components | ERJ-3EKF1621V | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | Yes | 59385 Pcs |
| Stackpole Electronics Inc | RMCF0603FT1K62 | 1.62 kΩ | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | Yes | 41836 Pcs |
Engineering Selection Recommendations
Primary Substitutes (Equivalent Compliance Profile):
CR0603-FX-1621ELF (Bourns Inc.) and RC0603FR-071K62L (YAGEO) are direct functional equivalents with matching ROHS3 compliance and industrial-grade specifications. Both components maintain identical electrical parameters and operating characteristics to the RC1608F1621CS. Selection between these options is based on supply chain availability and procurement preferences.
Secondary Substitutes (Enhanced Compliance - Automotive Grade):
AC0603FR-071K62L (YAGEO), CRCW06031K62FKEA (Vishay Dale), ERJ-3EKF1621V (Panasonic Electronic Components), and RMCF0603FT1K62 (Stackpole Electronics Inc) are automotive-grade alternatives with AEC-Q200 certification. These components exceed the original specification through enhanced manufacturing process controls and reliability testing. They are functionally compatible and suitable for applications requiring automotive-level quality assurance while maintaining ROHS3 compliance and REACH unaffected status.
Non-Recommended Substitute:
CRCW06031K62FKTA (Vishay Dale) exhibits RoHS non-compliance and REACH affected status, making it unsuitable for applications subject to environmental regulations or RoHS requirements. This part should not be selected for new designs or regulated applications.
Frequently Asked Questions (FAQ)
Q: Can I substitute the RC1608F1621CS with any of the listed alternatives without circuit redesign?
A: Yes. All recommended substitute parts (CR0603-FX-1621ELF, RC0603FR-071K62L, AC0603FR-071K62L, CRCW06031K62FKEA, ERJ-3EKF1621V, and RMCF0603FT1K62) match the core electrical specifications: 1.62 kOhms ±1% resistance, 0.1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Direct substitution is valid at the circuit level.
Q: What is the difference between industrial-grade and automotive-grade options?
A: Industrial-grade parts (CR0603-FX-1621ELF, RC0603FR-071K62L) meet standard ROHS3 compliance. Automotive-grade parts (AC0603FR-071K62L, CRCW06031K62FKEA, ERJ-3EKF1621V, RMCF0603FT1K62) carry AEC-Q200 certification, indicating enhanced manufacturing controls, extended reliability testing, and qualification for automotive applications. Automotive-grade components are functionally compatible with industrial applications but offer higher assurance levels.
Q: Are there physical dimension differences between substitute parts?
A: All parts conform to the 0603 (1608 Metric) package standard. Minor dimensional variations exist within tolerance: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations remain within PCB footprint tolerances and do not affect assembly or functionality.
Q: Which substitute offers the best supply availability?
A: RC0603FR-071K62L (YAGEO) has the highest inventory level at 315,644 pieces, followed by CRCW06031K62FKEA (Vishay Dale) at 50,957 pieces and ERJ-3EKF1621V (Panasonic) at 59,385 pieces. Supply selection depends on procurement lead times and vendor relationships.
Q: Should I use automotive-grade parts in non-automotive applications?
A: Automotive-grade substitutes are functionally compatible with non-automotive applications. Their enhanced reliability characteristics do not create incompatibility. Selection is based on cost considerations and application requirements rather than technical necessity.
Q: Why is CRCW06031K62FKTA not recommended?
A: CRCW06031K62FKTA exhibits RoHS non-compliance and REACH affected status. This part does not meet current environmental regulations and should not be selected for new designs or applications subject to RoHS or REACH requirements.
Q: Are all substitute parts MSL 1 rated?
A: Yes. All listed substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating, matching the original RC1608F1621CS specification. No special moisture control measures are required during storage or handling.
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