CSR1206FT50L0 Equivalent & Substitute Parts

Part Overview

The CSR1206FT50L0 is a 50 mOhms ±1% thick film chip resistor in 1206 (3216 Metric) package rated for 0.5W power dissipation. Manufactured by Stackpole Electronics Inc, this current sense resistor is designed for precision low-resistance applications requiring stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary due to inventory availability, supply chain optimization, or specific performance requirements such as improved temperature stability or enhanced moisture resistance in demanding environments.

Substiute Parts

CSR1206FT50L0

Stackpole Electronics IncIn Stock: 5880CSR1206FT50L0 Datasheet

Current PartRFQ

CSR1206FK50L0

Stackpole Electronics IncIn Stock: 117092CSR1206FK50L0 Datasheet

DirectRFQ

PF1206FKM7W0R05Z

YAGEOIn Stock: 10124PF1206FKM7W0R05Z Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match Exactly):

• Resistance value: 50 mOhms
• Tolerance: ±1%
• Power rating: 0.5W
• Package type: 1206 (3216 Metric)
• Operating temperature range: -55°C to 155°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowed Variation Parameters:

• Composition: Thick Film or Metal Foil (both acceptable for current sense applications)
• Temperature coefficient: ±75ppm/°C to ±100ppm/°C (tighter tolerance acceptable)
• Physical dimensions: Minor variations within 1206 package specification tolerance
• Additional features: Moisture resistance enhancement permitted

Both identified substitutes meet all critical parameters while offering either equivalent or enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

CSR1206FK50L0 (Direct Equivalent): This Stackpole Electronics part is electrically and mechanically identical to the CSR1206FT50L0, differing only in internal manufacturing designation. Both parts share identical specifications across all critical parameters including resistance, tolerance, power rating, package dimensions, and compliance certifications. Selection of this substitute is appropriate for direct replacement in any application where the original part is specified. Higher inventory availability (117,047 units) supports supply chain continuity.

PF1206FKM7W0R05Z (Enhanced Performance Alternative): The YAGEO metal foil composition variant offers improved temperature coefficient performance (±75ppm/°C versus ±100ppm/°C), providing superior stability in precision current sensing applications. The addition of moisture-resistant construction enhances reliability in humid or corrosive environments. Physical dimensions fall within acceptable 1206 package tolerance (3.20mm x 1.60mm versus 3.05mm x 1.55mm), and maximum seated height increases to 0.033" (0.85mm) versus 0.026" (0.65mm). This substitute is suitable for applications requiring enhanced environmental protection or tighter temperature stability, provided PCB layout accommodates the minor dimensional increase.

All three parts maintain Active product status, full RoHS3 compliance, and unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can CSR1206FK50L0 be used as a direct replacement for CSR1206FT50L0?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc and share identical electrical specifications (50 mOhms ±1%, 0.5W), package type (1206), temperature range (-55°C to 155°C), and compliance certifications. The parts differ only in internal manufacturing designation and are functionally interchangeable.

Q: What is the primary advantage of PF1206FKM7W0R05Z over the Stackpole alternatives?

A: The YAGEO part features metal foil composition with improved temperature coefficient (±75ppm/°C versus ±100ppm/°C) and integrated moisture-resistant construction. These characteristics provide enhanced stability in precision applications and improved performance in high-humidity or corrosive environments.

Q: Are there physical compatibility concerns with PF1206FKM7W0R05Z?

A: Minor dimensional variations exist within 1206 package tolerance. The YAGEO part measures 3.20mm x 1.60mm (versus 3.05mm x 1.55mm for Stackpole) and has maximum seated height of 0.033" (versus 0.026"). PCB layout must accommodate these dimensional increases, particularly in space-constrained designs.

Q: Do all three parts meet the same compliance requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, carry ECCN EAR99 classification, and maintain MSL 1 (unlimited moisture sensitivity) rating. Compliance certifications are equivalent across all substitutes.

Q: Which substitute should be selected for maximum supply availability?

A: CSR1206FK50L0 offers the highest inventory level at 117,047 units in stock, compared to 5,859 units for CSR1206FT50L0 and 10,071 units for PF1206FKM7W0R05Z. Selection of the Stackpole FK variant optimizes supply chain continuity for high-volume production requirements.