RG2012P-1243-D-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-1243-D-T5 is a 124 kOhms ±0.5% thin film chip resistor manufactured by Susumu in 0805 (2012 Metric) package format. This surface-mount device is rated for 0.125W (1/8W) power dissipation and features anti-sulfur coating with automotive AEC-Q200 qualification. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified when resistance value, package format, power rating, and primary electrical characteristics align within acceptable tolerance specifications.

Substiute Parts

RG2012P-1243-D-T5

SusumuIn Stock: 743RG2012P-1243-D-T5 Datasheet

Current PartRFQ

RG2012N-1243-B-T5

SusumuIn Stock: 6041RG2012N-1243-B-T5 Datasheet

UpgradeRFQ

RG2012P-1243-B-T5

SusumuIn Stock: 60052RG2012P-1243-B-T5 Datasheet

UpgradeRFQ

2176094-4

TE Connectivity Passive ProductIn Stock: 30232176094-4 Datasheet

DirectRFQ

ERA-6AEB1243V

Panasonic Electronic ComponentsIn Stock: 1482ERA-6AEB1243V Datasheet

UpgradeRFQ

RT0805BRD07124KL

YAGEOIn Stock: 10482RT0805BRD07124KL Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RG2012P-1243-D-T5 are classified based on the following substitution criteria:

Primary Matching Parameters:

• Resistance value: 124 kOhms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

• Tolerance: ±0.5% or tighter (±0.1% acceptable as upgrade)
• Power rating: 0.125W minimum (0.25W acceptable as upgrade)
• Temperature coefficient: ±25ppm/°C or better
• Automotive qualification: AEC-Q200 preferred but not mandatory for direct substitution

Upgrade Classification: Parts with improved tolerance (±0.1% vs ±0.5%) or lower temperature coefficient (±10ppm/°C vs ±25ppm/°C) are designated as upgrades.

Direct Substitution Classification: Parts meeting all primary parameters with equivalent or superior electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Upgrade Options (Improved Tolerance):

RG2012N-1243-B-T5 and RG2012P-1243-B-T5 (both Susumu) provide ±0.1% tolerance versus the original ±0.5%, with RG2012N-1243-B-T5 additionally offering ±10ppm/°C temperature coefficient. Both maintain 0.125W power rating, 0805 package, and AEC-Q200 automotive qualification. RG2012P-1243-B-T5 offers the highest inventory availability (59,946 pcs).

Direct Substitution (Equivalent Electrical Performance):

ERA-6AEB1243V (Panasonic) matches the original part's ±0.5% tolerance specification while providing ±0.1% tolerance as an upgrade path. It maintains 0.125W power rating, 0805 package, and AEC-Q200 qualification. Height is 0.60mm versus 0.50mm for the original.

RT0805BRD07124KL (YAGEO) provides ±0.1% tolerance and 0.125W power rating in 0805 package with high inventory (10,469 pcs). This part does not carry AEC-Q200 automotive qualification.

Higher Power Rating Option:

2176094-4 (TE Connectivity Passive Product) offers 0.25W (1/4W) power rating with ±0.1% tolerance and 0805 package. This part does not carry AEC-Q200 automotive qualification and has maximum height of 0.65mm. Selection is appropriate only when increased power dissipation capability is required.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and operating temperature range of -55°C ~ 155°C. Parts with AEC-Q200 qualification (RG2012N-1243-B-T5, RG2012P-1243-B-T5, ERA-6AEB1243V) are preferred for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1243-B-T5 directly replace RG2012P-1243-D-T5?

A: Yes. RG2012N-1243-B-T5 is a direct substitute with improved specifications. It maintains the same 124 kOhms resistance, 0.125W power rating, 0805 package, and AEC-Q200 automotive qualification. The tolerance improves from ±0.5% to ±0.1%, and temperature coefficient improves from ±25ppm/°C to ±10ppm/°C.

Q: What is the difference between RG2012N-1243-B-T5 and RG2012P-1243-B-T5?

A: Both parts offer ±0.1% tolerance and 0.125W power rating in 0805 package with AEC-Q200 qualification. The primary difference is temperature coefficient: RG2012N-1243-B-T5 specifies ±10ppm/°C while RG2012P-1243-B-T5 specifies ±25ppm/°C. RG2012P-1243-B-T5 has significantly higher inventory availability (59,946 pcs versus 5,959 pcs).

Q: Can 2176094-4 be used as a substitute?

A: 2176094-4 is a direct substitute for resistance and package matching (124 kOhms, 0805). However, it offers 0.25W power rating versus the original 0.125W, and does not carry AEC-Q200 automotive qualification. Selection is appropriate only when increased power dissipation is required and automotive qualification is not mandatory.

Q: Is RT0805BRD07124KL suitable for automotive applications?

A: RT0805BRD07124KL matches the resistance (124 kOhms), tolerance (±0.1%), power rating (0.125W), and package (0805) of the original part. However, it does not carry AEC-Q200 automotive qualification. For automotive applications requiring AEC-Q200 compliance, use RG2012N-1243-B-T5, RG2012P-1243-B-T5, or ERA-6AEB1243V instead.

Q: What is the significance of the 0.50mm versus 0.60mm height difference?

A: The original RG2012P-1243-D-T5 has a maximum seated height of 0.50mm. ERA-6AEB1243V and RT0805BRD07124KL have maximum heights of 0.60mm, while 2176094-4 reaches 0.65mm. Height differences may impact PCB assembly clearance and component placement. Verify board design constraints before selecting parts with increased height.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity level, matching the original part's environmental and regulatory status.

Q: Which substitute offers the best inventory availability?

A: RG2012P-1243-B-T5 (Susumu) offers the highest inventory with 59,946 pcs in stock. This part provides ±0.1% tolerance upgrade while maintaining the original 0.125W power rating, 0805 package, and AEC-Q200 automotive qualification.