RG2012N-1780-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1780-C-T5 is a 178 Ohms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications requiring precision resistance values. The part is currently classified as obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RG2012N-1780-C-T5

SusumuIn Stock: 907RG2012N-1780-C-T5 Datasheet

Current PartRFQ

RG2012N-1780-B-T5

SusumuIn Stock: 891RG2012N-1780-B-T5 Datasheet

UpgradeRFQ

RG2012N-1780-W-T1

SusumuIn Stock: 897RG2012N-1780-W-T1 Datasheet

UpgradeRFQ

RG2012N-1780-W-T5

SusumuIn Stock: 1174RG2012N-1780-W-T5 Datasheet

UpgradeRFQ

RG2012V-1780-B-T5

SusumuIn Stock: 1016RG2012V-1780-B-T5 Datasheet

UpgradeRFQ

RG2012V-1780-P-T1

SusumuIn Stock: 977RG2012V-1780-P-T1 Datasheet

UpgradeRFQ

RG2012V-1780-W-T1

SusumuIn Stock: 850RG2012V-1780-W-T1 Datasheet

UpgradeRFQ

RG2012V-1780-W-T5

SusumuIn Stock: 1098RG2012V-1780-W-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-1780-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 178 Ohms (exact match required)
• Package type: 0805 (2012 Metric) (exact match required)
• Power rating: 0.125W (1/8W) (exact match required)
• Composition: Thin Film (exact match required)
• Features: Anti-Sulfur, Automotive AEC-Q200 (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Variable Parameters Allowing Substitution:

• Tolerance: Can be equal to or tighter (lower) than ±0.25%
• Temperature coefficient: Can be equal to or lower than ±10ppm/°C
• Product status: Active parts substitute for obsolete parts
• Packaging format: Tape & Reel (TR) substitutes for standard packaging

All substitute parts listed maintain identical mechanical dimensions (0.079" L x 0.049" W, 0.020" max height) and electrical ratings while offering improved tolerance specifications or lower temperature coefficients.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Minimum Specification Match): The RG2012N-1780-B-T5 provides the most direct substitution path. It maintains the ±10ppm/°C temperature coefficient of the original part while improving tolerance to ±0.1%. This part is active and carries identical AEC-Q200 automotive qualification and anti-sulfur coating.

Enhanced Precision Alternatives: For applications requiring tighter tolerance control, the RG2012N-1780-W-T5 and RG2012N-1780-W-T1 offer ±0.05% tolerance while maintaining the ±10ppm/°C temperature coefficient. Both parts are active with full AEC-Q200 compliance.

Superior Stability Options: The RG2012V series parts (RG2012V-1780-B-T5, RG2012V-1780-W-T1, RG2012V-1780-W-T5, RG2012V-1780-P-T1) provide improved temperature coefficient performance at ±5ppm/°C, reducing drift over the -55°C to 155°C operating range. These parts are suitable for applications with stringent thermal stability requirements.

Highest Precision Grade: The RG2012V-1780-P-T1 represents the highest precision option with ±0.02% tolerance and ±5ppm/°C temperature coefficient, appropriate for precision measurement and calibration circuits.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical mechanical footprint compatibility with the original RG2012N-1780-C-T5.

Frequently Asked Questions (FAQ)

Q: Can I use RG2012V series parts as direct replacements for RG2012N series?

A: Yes. The RG2012V and RG2012N designations indicate different temperature coefficient grades (±5ppm/°C versus ±10ppm/°C respectively). RG2012V parts are electrically and mechanically compatible with RG2012N applications and provide superior thermal stability. No circuit modifications are required.

Q: What is the difference between tolerance grades (B, W, P)?

A: Tolerance grades represent resistance accuracy: B = ±0.1%, W = ±0.05%, P = ±0.02%. Tighter tolerance grades (lower percentages) are suitable for precision applications but do not affect mechanical compatibility or basic electrical function.

Q: Are T1 and T5 packaging designations interchangeable?

A: T1 and T5 refer to tape reel specifications (different tape widths and reel configurations). Both are Tape & Reel (TR) packaging formats. Selection depends on assembly equipment compatibility. Electrically and mechanically, they are equivalent.

Q: Does the RG2012N-1780-C-T5 obsolescence affect circuit performance?

A: The obsolescence status indicates the part is no longer manufactured. Existing inventory (884 Pcs) remains available, but long-term supply cannot be guaranteed. Active substitute parts ensure continued design support and future availability.

Q: Which substitute part should I select for a new design?

A: For new designs, select from active parts based on precision requirements: RG2012N-1780-B-T5 for standard applications, RG2012N-1780-W-T5 for improved tolerance, or RG2012V-1780-W-T5 for enhanced thermal stability. All are actively manufactured with full AEC-Q200 qualification.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry automotive AEC-Q200 qualification, anti-sulfur coating, and ROHS3 compliance identical to the original RG2012N-1780-C-T5.

Q: What is the impact of temperature coefficient differences?

A: Temperature coefficient (ppm/°C) defines resistance drift over temperature. The original part drifts ±10ppm per degree Celsius. RG2012V series parts drift ±5ppm per degree Celsius, resulting in half the resistance variation across the -55°C to 155°C operating range. This is beneficial for precision applications but not required for standard circuits.