ERJ-S03F1R50V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F1R50V is a 1.5 Ohm ±1% thick film chip resistor manufactured by Panasonic Electronic Components in the 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation and features anti-sulfur construction with AEC-Q200 automotive qualification. The part is currently active in production status with 792 pieces available in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility within the same performance envelope.

Substiute Parts

ERJ-S03F1R50V

Panasonic Electronic ComponentsIn Stock: 866ERJ-S03F1R50V Datasheet

Current PartRFQ

ERJ-U03F1R50V

Panasonic Electronic ComponentsIn Stock: 5782ERJ-U03F1R50V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERJ-S03F1R50V is based on strict electrical and mechanical parameter equivalence. The following criteria determine valid substitutes:

Electrical Parameters:

• Resistance value: 1.5 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.1W / 1/10W (exact match required)
• Temperature coefficient: -100 / +600 ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package format: 0603 (1608 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)
• Physical dimensions: 0.063" L x 0.031" W / 1.60mm x 0.80mm (exact match required)
• Height seated maximum: 0.022" / 0.55mm (exact match required)

Compliance & Certification:

• AEC-Q200 automotive rating (exact match required)
• Anti-sulfur construction (exact match required)
• RoHS3 compliance (exact match required)
• Moisture sensitivity level 1 (exact match required)

The ERJ-U03F1R50V meets all specified criteria and is classified as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-U03F1R50V is a direct equivalent substitute for the ERJ-S03F1R50V. Both components are manufactured by Panasonic Electronic Components and share identical electrical specifications, mechanical dimensions, and compliance certifications. Selection between these parts is based on availability and supply chain requirements rather than technical performance differences.

Both parts maintain active production status and comply with ROHS3 regulations and AEC-Q200 automotive standards. The ERJ-U03F1R50V currently has higher inventory availability (5673 pieces) compared to the ERJ-S03F1R50V (792 pieces), making it suitable for high-volume applications or when extended supply assurance is required.

The substitution is valid for all applications where the ERJ-S03F1R50V is specified, with no design modifications or circuit re-evaluation required.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-U03F1R50V be used as a direct replacement for the ERJ-S03F1R50V in automotive applications?

A: Yes. Both parts carry identical AEC-Q200 automotive qualification ratings and meet all electrical and mechanical specifications required for automotive-grade applications. No design changes are necessary.

Q: Are there any differences in the physical package dimensions between these two parts?

A: No. Both the ERJ-S03F1R50V and ERJ-U03F1R50V use the 0603 (1608 Metric) package format with identical dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) and maximum seated height of 0.022" (0.55mm). They are mechanically interchangeable on PCB layouts.

Q: Do both parts have the same resistance tolerance and temperature coefficient?

A: Yes. Both parts are specified at 1.5 Ohms ±1% tolerance with a temperature coefficient of -100 / +600 ppm/°C and an operating temperature range of -55°C ~ 155°C.

Q: What is the difference between the ERJ-S03 and ERJ-U03 series designations?

A: The series designation difference (S03 versus U03) reflects internal Panasonic product line categorization. From an engineering standpoint, the ERJ-U03F1R50V and ERJ-S03F1R50V are electrically and mechanically equivalent with identical performance characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the ERJ-S03F1R50V and ERJ-U03F1R50V are ROHS3 compliant with moisture sensitivity level 1 (unlimited), making them suitable for standard PCB assembly processes without special handling requirements.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging format and are compatible with standard automated pick-and-place assembly equipment.