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TE Connectivity 3-1879357-1 Equivalent & Substitute Parts
Part Overview
The TE Connectivity 3-1879357-1 is a 33 kOhms ±0.1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package. This component is classified as Active product status and is suitable for precision analog circuits requiring tight tolerance specifications. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter ranges.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 33 kOhms |
| Tolerance | ±0.1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thin Film |
| Temperature Coefficient | ±10ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitution eligibility for the TE Connectivity 3-1879357-1 is determined by the following critical parameters:
Mandatory Compatibility Parameters:
- Resistance value: 33 kOhms (exact match required)
- Package / Case: 0805 (2012 Metric) (exact match required)
- Composition: Thin Film (exact match required)
- Operating Temperature Range: -55°C ~ 155°C (minimum requirement)
- Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)
Allowable Variation Parameters:
- Tolerance: ±0.1% or tighter (±0.05%, ±0.01%)
- Power Rating: 0.1W or higher (0.125W acceptable)
- Temperature Coefficient: ±10ppm/°C or lower (±2ppm/°C acceptable)
All identified substitute parts meet or exceed the mandatory compatibility parameters. Variations in tolerance, power rating, and temperature coefficient represent equal or superior electrical performance characteristics.
Parameter Comparison
| Parameter | 3-1879357-1 (TE Connectivity) | ERA-6ARB333V (Panasonic) | ERA-6ARW333V (Panasonic) | RG2012L-333-L-T05 (Susumu) |
|---|---|---|---|---|
| Manufacturer | TE Connectivity | Panasonic Electronic Components | Panasonic Electronic Components | Susumu |
| Resistance | 33 kOhms | 33 kOhms | 33 kOhms | 33 kOhms |
| Tolerance | ±0.1% | ±0.1% | ±0.05% | ±0.01% |
| Power Rating | 0.1W (1/10W) | 0.125W (1/8W) | 0.125W (1/8W) | 0.1W (1/10W) |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thin Film | Thin Film | Thin Film | Thin Film |
| Temperature Coefficient | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±2ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Active |
| RoHS Status | Not applicable | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | Vendor Undefined | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Automotive Rating | Not specified | AEC-Q200 | AEC-Q200 | AEC-Q200 |
| Series | RN73, Holsworthy | ERA-6A | ERA-6A | RG |
Engineering Selection Recommendations
TE Connectivity 3-1879357-1 (Original Part) Use when original manufacturer specification is required or when RoHS/REACH compliance status must match the original design documentation.
Panasonic ERA-6ARB333V This substitute provides equivalent tolerance (±0.1%) with increased power rating (0.125W vs. 0.1W) and holds AEC-Q200 automotive qualification. ROHS3 compliance and REACH Unaffected status are confirmed. Suitable for applications requiring automotive-grade reliability without enhanced tolerance specifications.
Panasonic ERA-6ARW333V This substitute offers superior tolerance (±0.05% vs. ±0.1%) with increased power rating (0.125W vs. 0.1W) and AEC-Q200 automotive qualification. ROHS3 compliance and REACH Unaffected status are confirmed. Suitable for precision applications requiring tighter tolerance control than the original specification.
Susumu RG2012L-333-L-T05 This substitute provides the highest tolerance specification (±0.01% vs. ±0.1%) with superior temperature coefficient (±2ppm/°C vs. ±10ppm/°C) and anti-sulfur protection. Power rating matches the original (0.1W). AEC-Q200 automotive qualification, ROHS3 compliance, and REACH Unaffected status are confirmed. Suitable for high-precision analog circuits and automotive applications requiring exceptional stability and environmental protection.
Frequently Asked Questions (FAQ)
Q: Can ERA-6ARB333V and ERA-6ARW333V be used interchangeably with the original 3-1879357-1?
A: Yes. Both Panasonic parts maintain the same 33 kOhms resistance, 0805 package, and thin film composition. The increased power rating (0.125W vs. 0.1W) and tighter tolerance specifications (±0.1% and ±0.05% respectively) are compatible with applications designed for the original part. The higher power rating provides additional thermal margin without affecting circuit performance.
Q: What is the difference between ERA-6ARB333V and ERA-6ARW333V?
A: Both parts are Panasonic ERA-6A series 33 kOhms 0805 thin film resistors with AEC-Q200 qualification. The primary difference is tolerance: ERA-6ARB333V is ±0.1% (matching the original specification), while ERA-6ARW333V is ±0.05% (tighter tolerance). Both have identical power rating (0.125W), temperature coefficient (±10ppm/°C), and operating temperature range.
Q: When should RG2012L-333-L-T05 be selected over the Panasonic alternatives?
A: Select the Susumu RG2012L-333-L-T05 when applications require the tightest tolerance specification (±0.01%), lowest temperature coefficient (±2ppm/°C), or anti-sulfur protection for harsh environments. This part is suitable for precision measurement circuits, high-stability analog applications, and automotive environments with corrosive exposure.
Q: Are all substitute parts available in the same packaging format?
A: All substitute parts are supplied in 0805 (2012 Metric) surface mount package with 2 terminations, matching the original part. Panasonic parts are supplied in Tape & Reel (TR) packaging, while the original TE Connectivity part packaging format is not specified in the provided data.
Q: Do the substitute parts have automotive qualification?
A: Yes. All three substitute parts (ERA-6ARB333V, ERA-6ARW333V, and RG2012L-333-L-T05) hold AEC-Q200 automotive qualification. The original TE Connectivity 3-1879357-1 does not specify automotive qualification in the provided data.
Q: What is the physical height difference between these parts?
A: The original 3-1879357-1 has a maximum seated height of 0.026" (0.65mm). Panasonic parts have 0.024" (0.60mm) maximum height, and the Susumu part has 0.020" (0.50mm) maximum height. All heights are within typical 0805 package specifications and do not affect PCB layout compatibility.
Q: Are all parts RoHS and REACH compliant?
A: The original TE Connectivity 3-1879357-1 has undefined RoHS and REACH status. All three substitute parts are ROHS3 Compliant and REACH Unaffected, providing confirmed environmental compliance for regulated applications.
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