RG1608N-301-B-T1 Equivalent & Substitute Parts

Part Overview

The RG1608N-301-B-T1 is a 300 Ohms ±0.1% thin film chip resistor in 0603 (1608 Metric) package format, rated for 0.1W (1/10W) power dissipation. This component features anti-sulfur construction and meets automotive AEC-Q200 qualification standards. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design support and procurement continuity.

Substiute Parts

RG1608N-301-B-T1

SusumuIn Stock: 1030RG1608N-301-B-T1 Datasheet

Current PartRFQ

RG1608N-301-B-T5

SusumuIn Stock: 935RG1608N-301-B-T5 Datasheet

DirectRFQ

RG1608N-301-P-T1

SusumuIn Stock: 912RG1608N-301-P-T1 Datasheet

UpgradeRFQ

RG1608N-301-W-T5

SusumuIn Stock: 830RG1608N-301-W-T5 Datasheet

UpgradeRFQ

RG1608V-301-B-T5

SusumuIn Stock: 955RG1608V-301-B-T5 Datasheet

UpgradeRFQ

RG1608V-301-P-T1

SusumuIn Stock: 997RG1608V-301-P-T1 Datasheet

UpgradeRFQ

RG1608V-301-W-T1

SusumuIn Stock: 1028RG1608V-301-W-T1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG1608N-301-B-T1 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 300 Ohms (exact match required)
• Package format: 0603 (1608 Metric) (exact match required)
• Power rating: 0.1W (1/10W) (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)

Variable Parameters Allowing Substitution:

• Tolerance: ±0.1%, ±0.05%, ±0.02% (tighter tolerances are acceptable upgrades)
• Temperature coefficient: ±10ppm/°C or ±5ppm/°C (lower values represent improved stability)
• Packaging format: Bulk or Tape & Reel (TR) (packaging configuration does not affect electrical performance)
• Product status: Active substitutes are preferred over obsolete parts

Substitute parts are grouped into direct equivalents (matching tolerance and temperature coefficient) and upgrades (improved tolerance or temperature coefficient specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Electrical Specifications):

RG1608N-301-B-T5 is the direct equivalent to RG1608N-301-B-T1. Both parts maintain identical electrical specifications: 300 Ohms ±0.1% tolerance, 0.1W power rating, and ±10ppm/°C temperature coefficient. The RG1608N-301-B-T5 is active in production and available in Tape & Reel packaging, providing a seamless replacement for the obsolete RG1608N-301-B-T1 bulk format.

Upgraded Alternatives (Enhanced Specifications):

The following parts provide improved performance characteristics while maintaining full compatibility:

• RG1608N-301-W-T5: Tighter tolerance of ±0.05% with identical temperature coefficient (±10ppm/°C). Active status and Tape & Reel packaging.

• RG1608N-301-P-T1: Tightest tolerance of ±0.02% with identical temperature coefficient (±10ppm/°C). Active status and Tape & Reel packaging.

• RG1608V-301-B-T5: Improved temperature coefficient of ±5ppm/°C with matching ±0.1% tolerance. Active status and Tape & Reel packaging.

• RG1608V-301-W-T1: Enhanced specifications combining ±0.05% tolerance with ±5ppm/°C temperature coefficient. Active status and Tape & Reel packaging.

• RG1608V-301-P-T1: Premium specifications with ±0.02% tolerance and ±5ppm/°C temperature coefficient. Active status and Tape & Reel packaging.

All substitute parts maintain AEC-Q200 automotive qualification, RoHS3 compliance, and identical package dimensions. Selection between direct equivalent and upgraded alternatives depends on circuit precision requirements and thermal stability specifications.

Frequently Asked Questions (FAQ)

Q: Can RG1608N-301-B-T5 be used as a direct replacement for RG1608N-301-B-T1?

A: Yes. Both parts are electrically identical with 300 Ohms ±0.1% tolerance, 0.1W power rating, and ±10ppm/°C temperature coefficient. The primary difference is packaging format: RG1608N-301-B-T1 is supplied in bulk, while RG1608N-301-B-T5 is supplied in Tape & Reel format. Both are mounted identically in 0603 package footprints.

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

A: The RG1608V series offers improved temperature coefficient stability at ±5ppm/°C compared to the RG1608N series at ±10ppm/°C. All other electrical and mechanical specifications remain identical. RG1608V parts are suitable for applications requiring enhanced thermal stability.

Q: Are tighter tolerance parts (±0.02% or ±0.05%) backward compatible with designs specified for ±0.1% tolerance?

A: Yes. Tighter tolerance parts are fully compatible with designs specified for ±0.1% tolerance. The actual resistance value will fall within the tighter tolerance band, which is a subset of the original ±0.1% specification. No circuit redesign is required.

Q: Does packaging format (Bulk vs. Tape & Reel) affect electrical performance?

A: No. Packaging format affects only procurement and assembly processes. Electrical performance, mechanical dimensions, and thermal characteristics are identical between bulk and Tape & Reel formats of the same part number.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All substitute parts listed maintain AEC-Q200 automotive qualification and RoHS3 compliance, ensuring suitability for automotive applications requiring these certifications.

Q: What is the moisture sensitivity level for these parts?

A: All parts in this substitution group have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.