RG1608P-302-C-T5 Equivalent & Substitute Parts

Part Overview

The RG1608P-302-C-T5 is a 3 kOhms ±0.25% thin film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Susumu, this component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications across -55°C to 155°C operating temperature range. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility while meeting automotive and industrial standards.

Key Parameters

Parameter	Value	Specification Basis
Resistance	3 kOhms	Core electrical requirement
Tolerance	±0.25%	Precision classification
Power Rating	0.1W (1/10W)	Thermal dissipation capability
Package	0603 (1608 Metric)	Physical footprint and PCB compatibility
Composition	Thin Film	Temperature coefficient and stability class
Operating Temperature	-55°C to 155°C	Environmental operating range
Automotive Rating	AEC-Q200	Reliability and qualification standard
RoHS Status	ROHS3 Compliant	Environmental and regulatory compliance

Substitute Part Grouping Explanation

Substitution of the RG1608P-302-C-T5 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 3 kOhms (exact match required)
Power rating: 0.1W minimum
Package: 0603 (1608 Metric) form factor
Composition: Thin film construction
Operating temperature range: -55°C to 155°C minimum
Compliance: AEC-Q200 automotive qualification and ROHS3 compliance

Secondary Compatibility Factors:

Tolerance: ±0.25% or tighter (lower tolerance values are acceptable upgrades)
Temperature coefficient: ±25ppm/°C or lower (lower values indicate superior stability)
Termination count: 2 terminations (standard for chip resistors)
Moisture sensitivity: MSL 1 (unlimited shelf life)

Substitute parts are grouped into two categories: Upgrade substitutes (Susumu RG series with improved tolerance and temperature coefficient specifications) and Direct substitutes (alternative manufacturers meeting equivalent electrical and mechanical specifications).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Status
RG1608P-302-C-T5	Susumu	3 kOhms	±0.25%	0.1	±25	-55 to 155	Yes	Obsolete
RG1608N-302-B-T5	Susumu	3 kOhms	±0.1%	0.1	±10	-55 to 155	Yes	Active
RG1608N-302-P-T1	Susumu	3 kOhms	±0.02%	0.1	±10	-55 to 155	Yes	Active
RG1608N-302-W-T5	Susumu	3 kOhms	±0.05%	0.1	±10	-55 to 155	Yes	Active
RG1608P-302-B-T5	Susumu	3 kOhms	±0.1%	0.1	±25	-55 to 155	Yes	Active
RG1608P-302-P-T1	Susumu	3 kOhms	±0.02%	0.1	±25	-55 to 155	Yes	Active
RG1608P-302-W-T1	Susumu	3 kOhms	±0.05%	0.1	±25	-55 to 155	Yes	Active
RG1608V-302-B-T5	Susumu	3 kOhms	±0.1%	0.1	±5	-55 to 155	Yes	Active
RG1608V-302-P-T1	Susumu	3 kOhms	±0.02%	0.1	±5	-55 to 155	Yes	Active
RG1608V-302-W-T1	Susumu	3 kOhms	±0.05%	0.1	±5	-55 to 155	Yes	Active
RT0603CRD073KL	YAGEO	3 kOhms	±0.25%	0.1	±25	-55 to 155	No	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Electrical and Mechanical Performance):

The RT0603CRD073KL from YAGEO provides direct electrical equivalence with identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range. This part maintains the same 0603 package footprint and thin film construction. While not AEC-Q200 rated, it is ROHS3 compliant and active in production, offering immediate availability as a substitute for the obsolete RG1608P-302-C-T5.

For Upgraded Performance (Improved Tolerance and Temperature Stability):

The Susumu RG series offers multiple upgrade paths with enhanced specifications:

RG1608N-302-W-T5: Improves tolerance to ±0.05% and reduces temperature coefficient to ±10ppm/°C while maintaining the same package and power rating. Maintains AEC-Q200 qualification and ROHS3 compliance with 5715 units in stock.
RG1608V-302-B-T5: Provides ±0.1% tolerance with superior temperature coefficient of ±5ppm/°C, representing the highest stability option within the 0.1% tolerance class. AEC-Q200 qualified with 1082 units available.
RG1608V-302-W-T1: Combines ±0.05% tolerance with ±5ppm/°C temperature coefficient for applications requiring both precision and thermal stability. AEC-Q200 qualified with 941 units in stock.

For Maximum Precision Applications:

RG1608N-302-P-T1: Achieves ±0.02% tolerance with ±10ppm/°C temperature coefficient.
RG1608V-302-P-T1: Achieves ±0.02% tolerance with ±5ppm/°C temperature coefficient, representing the highest precision option.

All Susumu upgrade substitutes maintain identical package dimensions, power rating, operating temperature range, and automotive AEC-Q200 qualification. Selection depends on application-specific tolerance and temperature coefficient requirements.

Frequently Asked Questions (FAQ)

Q: Can the RT0603CRD073KL replace the RG1608P-302-C-T5 in automotive applications?

A: The RT0603CRD073KL provides electrical and mechanical equivalence with identical resistance, tolerance, power rating, and operating temperature range. However, it lacks AEC-Q200 automotive qualification. Applications requiring AEC-Q200 certification must use Susumu RG series substitutes. Applications without explicit AEC-Q200 requirements can use the YAGEO part.

Q: What is the difference between RG1608N, RG1608P, and RG1608V series?

A: The three series differ in temperature coefficient specification. RG1608N series has ±10ppm/°C, RG1608P series has ±25ppm/°C, and RG1608V series has ±5ppm/°C. All three maintain identical resistance, power rating, package, and operating temperature range. Selection depends on thermal stability requirements.

Q: Are all substitute parts available in the same packaging format?

A: All Susumu RG series substitutes are supplied in Tape & Reel (TR) packaging. The original RG1608P-302-C-T5 packaging format is not specified in the provided data. Verify packaging requirements before final selection.

Q: Can I use a ±0.05% tolerance part where ±0.25% is specified?

A: Yes. Tighter tolerance specifications are functionally compatible with applications designed for looser tolerances. Parts with ±0.05%, ±0.1%, or ±0.02% tolerance can replace the ±0.25% specification without circuit performance degradation.

Q: What is the significance of the temperature coefficient difference?

A: Temperature coefficient indicates resistance change per degree Celsius. Lower values (±5ppm/°C vs. ±25ppm/°C) indicate superior thermal stability. Applications with wide operating temperature ranges or high precision requirements benefit from lower temperature coefficients.

Q: Is the 0603 package physically identical across all substitute parts?

A: All parts use 0603 (1608 Metric) package with identical length (0.063" / 1.60mm) and width (0.031" / 0.80mm). Maximum seated height varies slightly: RG1608P-302-C-T5 and Susumu RG series are 0.020" (0.50mm), while RT0603CRD073KL is 0.022" (0.55mm). This minor difference does not affect PCB assembly compatibility.

Q: Which substitute offers the best combination of availability and performance?

A: RG1608N-302-W-T5 provides optimal balance with 5715 units in stock, ±0.05% tolerance, ±10ppm/°C temperature coefficient, AEC-Q200 qualification, and active production status. This part offers significant performance improvement over the obsolete original while maintaining full automotive compliance.

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