9T08052A2490CBHFT Equivalent & Substitute Parts

Part Overview

The 9T08052A2490CBHFT is a 249 Ohms ±0.25% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by YAGEO. This thin film resistor is currently obsolete, making equivalent and substitute parts necessary for ongoing production, maintenance, and design updates. The part operates across -55°C to 155°C with a temperature coefficient of ±100ppm/°C and carries RoHS non-compliant status.

Substiute Parts

9T08052A2490CBHFT

YAGEOIn Stock: 9799T08052A2490CBHFT Datasheet

Current PartRFQ

RT0805CRE07249RL

YAGEOIn Stock: 1149RT0805CRE07249RL Datasheet

DirectRFQ

TNPW0805249RBETA

Vishay DaleIn Stock: 908TNPW0805249RBETA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 9T08052A2490CBHFT is determined by the following critical parameters:

• Resistance value: 249 Ohms (exact match required)
• Tolerance: ±0.25% or better (tighter tolerance acceptable)
• Power rating: 0.125W minimum
• Package: 0805 (2012 Metric) form factor
• Composition: Thin film construction
• Operating temperature range: Must cover -55°C to 155°C or equivalent
• Moisture sensitivity: MSL 1 or better

Two substitute categories are identified:

Direct Equivalent (RT0805CRE07249RL): Active production part from YAGEO with identical electrical specifications and package, differing only in temperature coefficient and RoHS compliance status.

Upgrade Substitute (TNPW0805249RBETA): Military-grade thin film resistor from Vishay Dale with superior tolerance (±0.1% vs ±0.25%), lower temperature coefficient (±25ppm/°C vs ±100ppm/°C), and active product status. Operating temperature range is -55°C to 125°C.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select RT0805CRE07249RL when maintaining the original electrical performance is required. This part is an active production item from YAGEO with identical resistance, tolerance, and power rating. The improved temperature coefficient (±50ppm/°C vs ±100ppm/°C) provides better stability. ROHS3 compliance makes this suitable for applications with regulatory requirements. Available in Tape & Reel packaging for production volumes.

For Performance Enhancement: Select TNPW0805249RBETA when superior tolerance and temperature stability are beneficial. The ±0.1% tolerance and ±25ppm/°C temperature coefficient provide enhanced precision compared to the original specification. Military-grade construction ensures reliability in demanding applications. This part is active in production. Note that the maximum operating temperature is 125°C, which is 30°C lower than the original part; this must be evaluated against application requirements.

Compliance Considerations: RT0805CRE07249RL is ROHS3 compliant and suitable for applications requiring regulatory adherence. TNPW0805249RBETA is RoHS non-compliant; use only where RoHS compliance is not mandated.

Frequently Asked Questions (FAQ)

Q: Can RT0805CRE07249RL be used as a direct drop-in replacement for 9T08052A2490CBHFT? A: Yes. Both parts share identical resistance (249 Ohms), tolerance (±0.25%), power rating (0.125W), package (0805), and operating temperature range (-55°C to 155°C). The improved temperature coefficient of RT0805CRE07249RL (±50ppm/°C) is a performance advantage with no compatibility impact.

Q: What is the difference between the direct equivalent and upgrade substitute? A: RT0805CRE07249RL maintains the original ±0.25% tolerance and ±100ppm/°C temperature coefficient specification. TNPW0805249RBETA offers superior performance with ±0.1% tolerance and ±25ppm/°C temperature coefficient, but has a lower maximum operating temperature (125°C vs 155°C).

Q: Are all three parts mechanically compatible in the same PCB footprint? A: Yes. All three parts use the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and two terminations. PCB footprints are interchangeable.

Q: Does the packaging format affect electrical performance? A: No. The main part is supplied in bulk packaging, while RT0805CRE07249RL and TNPW0805249RBETA are supplied in Tape & Reel format. Packaging format does not affect electrical characteristics or performance.

Q: Which substitute should be selected for high-precision applications? A: TNPW0805249RBETA is the appropriate choice for high-precision applications due to its ±0.1% tolerance and ±25ppm/°C temperature coefficient. Confirm that the -55°C to 125°C operating range meets application requirements.

Q: Are moisture sensitivity levels equivalent across all three parts? A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.