RG2012P-6340-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-6340-B-T1 is a 634 Ohms ±0.1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Susumu. This thin film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-precision applications requiring tight tolerance and stable performance across the -55°C to 155°C operating temperature range. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value
Resistance	634 Ohms
Tolerance	±0.1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Features	Anti-Sulfur, Automotive AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012P-6340-B-T1 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 634 Ohms (exact match required)
Package / Case: 0805 (2012 Metric) (physical and electrical footprint compatibility)
Operating temperature range: -55°C ~ 155°C (minimum requirement)
Composition: Thin Film (electrical performance characteristics)

Allowable Variation Parameters:

Tolerance: ±0.1% or tighter (±0.05%, ±0.02% are acceptable upgrades)
Power rating: 0.125W or higher (0.25W is acceptable upgrade)
Temperature coefficient: ±25ppm/°C or lower (±10ppm/°C, ±5ppm/°C are acceptable upgrades)
Packaging format: Tape & Reel (TR) acceptable for bulk applications
Automotive qualification: AEC-Q200 maintained across all primary substitutes

Non-Substitutable Parameters:

Resistance value deviation
Package size change
Operating temperature range reduction

Substitute parts are categorized as direct equivalents (same electrical specifications) or upgrades (improved specifications within the same package and footprint).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	AEC-Q200	Product Status	Inventory (Pcs)
RG2012P-6340-B-T1	Susumu	634 Ω	±0.1%	0.125	±25	0805	Yes	Obsolete	709
RG2012P-6340-B-T5	Susumu	634 Ω	±0.1%	0.125	±25	0805	Yes	Active	1052
RG2012N-6340-B-T5	Susumu	634 Ω	±0.1%	0.125	±10	0805	Yes	Active	994
RG2012N-6340-W-T1	Susumu	634 Ω	±0.05%	0.125	±10	0805	Yes	Active	926
RG2012P-6340-W-T5	Susumu	634 Ω	±0.05%	0.125	±25	0805	Yes	Active	1014
RG2012V-6340-B-T5	Susumu	634 Ω	±0.1%	0.125	±5	0805	Yes	Active	778
RG2012V-6340-P-T1	Susumu	634 Ω	±0.02%	0.125	±5	0805	Yes	Active	908
RG2012V-6340-W-T1	Susumu	634 Ω	±0.05%	0.125	±5	0805	Yes	Active	976
RG2012V-6340-W-T5	Susumu	634 Ω	±0.05%	0.125	±5	0805	Yes	Active	1024
9-2176091-9	TE Connectivity	634 Ω	±0.1%	0.25	±25	0805	No	Active	1634
ERA-6AEB6340V	Panasonic	634 Ω	±0.1%	0.125	±25	0805	Yes	Active	19550

Engineering Selection Recommendations

Primary Direct Equivalent (Identical Specifications):

RG2012P-6340-B-T5 (Susumu) is the direct equivalent replacement for the obsolete RG2012P-6340-B-T1. Both parts share identical electrical specifications: 634 Ohms ±0.1% tolerance, 0.125W power rating, ±25ppm/°C temperature coefficient, and AEC-Q200 automotive qualification. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard). This part maintains full compatibility with existing designs without performance modification.

Susumu RG Series Upgrades (Enhanced Specifications):

The Susumu RG series offers multiple upgrade options within the same 0805 package and AEC-Q200 qualification:

RG2012N-6340-B-T5: Improved temperature coefficient (±10ppm/°C vs. ±25ppm/°C) while maintaining ±0.1% tolerance and 0.125W rating
RG2012N-6340-W-T1, RG2012P-6340-W-T5: Tighter tolerance (±0.05%) with maintained or improved temperature coefficient
RG2012V-6340 series: Superior temperature coefficient (±5ppm/°C) with tolerance options from ±0.1% to ±0.02%

All Susumu upgrades maintain ROHS3 compliance, AEC-Q200 qualification, and -55°C to 155°C operating range.

Alternative Manufacturer Options:

ERA-6AEB6340V (Panasonic) provides an active alternative with identical electrical specifications to the original part: 634 Ohms ±0.1%, 0.125W, ±25ppm/°C, AEC-Q200 qualified. This part offers significantly higher inventory availability (19,550 pcs) and maintains full compliance requirements.

9-2176091-9 (TE Connectivity) is a direct electrical equivalent with ±0.1% tolerance and ±25ppm/°C temperature coefficient. This part differs in power rating (0.25W vs. 0.125W) and lacks AEC-Q200 qualification. Use only when automotive qualification is not required and higher power dissipation capability is beneficial.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-6340-B-T5 be used as a direct replacement for RG2012P-6340-B-T1?

A: Yes. RG2012P-6340-B-T5 is a direct equivalent with identical electrical and mechanical specifications. The primary difference is packaging format (Tape & Reel) and active product status. Both parts are 634 Ohms ±0.1%, 0.125W, 0805 package, with ±25ppm/°C temperature coefficient and AEC-Q200 qualification.

Q: What is the difference between Susumu RG series variants (P, N, V)?

A: The letter designation indicates temperature coefficient performance. RG2012P series has ±25ppm/°C, RG2012N series has ±10ppm/°C, and RG2012V series has ±5ppm/°C. All maintain the same 634 Ohm resistance, 0.125W power rating, and 0805 package. The letter suffix (B, W, P) indicates tolerance grade: B = ±0.1%, W = ±0.05%, P = ±0.02%.

Q: Is ERA-6AEB6340V suitable for automotive applications?

A: Yes. ERA-6AEB6340V is AEC-Q200 qualified and maintains identical electrical specifications to the original part: 634 Ohms ±0.1%, 0.125W, ±25ppm/°C, -55°C to 155°C operating range. This part is suitable for automotive applications requiring these specifications.

Q: Can 9-2176091-9 replace the original part?

A: 9-2176091-9 provides electrical equivalence (634 Ohms ±0.1%, ±25ppm/°C) but differs in two aspects: power rating is 0.25W (vs. 0.125W) and AEC-Q200 automotive qualification is not present. Use this part only in non-automotive applications or when higher power dissipation is required and automotive qualification is not mandatory.

Q: What are the physical dimensions of substitute parts?

A: All substitute parts use the 0805 (2012 Metric) package with dimensions 0.079" L x 0.049" W (2.00mm x 1.25mm). Height varies slightly: Susumu parts have 0.020" (0.50mm) maximum seated height, TE Connectivity has 0.026" (0.65mm), and Panasonic has 0.024" (0.60mm). These variations are within standard PCB assembly tolerances.

Q: Should I select an upgraded Susumu part with better temperature coefficient?

A: Selection depends on circuit requirements. If the original design operates within specifications with ±25ppm/°C temperature coefficient, direct equivalents (RG2012P-6340-B-T5 or ERA-6AEB6340V) are appropriate. If improved temperature stability is required, RG2012V series parts with ±5ppm/°C coefficient provide enhanced performance within the same package and footprint.

Q: Are all substitute parts RoHS3 compliant?

A: Susumu and Panasonic parts are ROHS3 compliant. TE Connectivity part 9-2176091-9 is RoHS non-compliant. Verify compliance requirements for your application before selection.

Q: What is the difference between Tape & Reel (TR) and standard packaging?

A: Tape & Reel packaging is standard for automated assembly processes and bulk component handling. The original part RG2012P-6340-B-T1 used standard packaging, while most active substitutes are supplied in Tape & Reel format. Both formats contain identical components; packaging format affects handling and assembly methodology only.

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