ECQ-UBAF103VG Equivalent & Substitute Parts

Part Overview

The ECQ-UBAF103VG is a 10000 pF film capacitor manufactured by Panasonic Electronic Components, rated for 300V AC operation with polypropylene metallized dielectric. This component is designed for EMI and RFI suppression applications in through-hole configurations. The part carries a "Not For New Designs" product status, indicating that Panasonic has discontinued active development for this model. Locating equivalent substitute parts is necessary to maintain supply chain continuity for existing designs and to identify functionally compatible alternatives for ongoing production requirements.

Key Parameters

Parameter	Value
Capacitance	10000 pF (0.01 µF)
Tolerance	±20%
Voltage Rating (AC)	300V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C to 110°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.492" (12.50 mm)
Physical Dimensions	0.728" L × 0.197" W (18.50 mm × 5.00 mm)
Height (Seated Max)	0.591" (15.00 mm)
Termination Type	PC Pins
Application Category	EMI, RFI Suppression
Ratings Classification	X1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ECQ-UBAF103VG is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ECQ-UBAF103V2 qualifies as a direct parametric equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

Capacitance: 10000 pF
Tolerance: ±20%
Voltage Rating (AC): 300V
Dielectric Material: Polypropylene (PP), Metallized

Mechanical Parameters (Must Match Exactly):

Mounting Type: Through Hole
Package Type: Radial
Lead Spacing: 0.492" (12.50 mm)
Physical Dimensions: 0.728" L × 0.197" W (18.50 mm × 5.00 mm)
Height (Seated Max): 0.591" (15.00 mm)
Termination Type: PC Pins

Environmental & Compliance Parameters (Must Match Exactly):

Operating Temperature Range: -40°C to 110°C
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

The ECQ-UBAF103V2 maintains identical specifications across all parameters, ensuring direct functional and physical compatibility with the original ECQ-UBAF103VG in existing circuit designs.

Parameter Comparison

Parameter	ECQ-UBAF103VG (Main Part)	ECQ-UBAF103V2 (Substitute)	Match Status
Manufacturer	Panasonic Electronic Components	Panasonic Electronic Components	Identical
Capacitance	10000 pF	10000 pF	Identical
Tolerance	±20%	±20%	Identical
Voltage Rating (AC)	300V	300V	Identical
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Identical
Operating Temperature	-40°C to 110°C	-40°C to 110°C	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package Type	Radial	Radial	Identical
Lead Spacing	0.492" (12.50 mm)	0.492" (12.50 mm)	Identical
Physical Dimensions	0.728" L × 0.197" W (18.50 mm × 5.00 mm)	0.728" L × 0.197" W (18.50 mm × 5.00 mm)	Identical
Height (Seated Max)	0.591" (15.00 mm)	0.591" (15.00 mm)	Identical
Termination Type	PC Pins	PC Pins	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Series	ECQUB	ECQUB	Identical
Base Product Number	ECQ-UBAF103	ECQ-UBAF103	Identical

Engineering Selection Recommendations

The ECQ-UBAF103V2 is a direct parametric equivalent to the ECQ-UBAF103VG and is suitable for substitution in all applications where the original part was specified. Both parts share identical electrical ratings, mechanical dimensions, and environmental compliance certifications.

Product Status Consideration: Both the ECQ-UBAF103VG and ECQ-UBAF103V2 carry "Not For New Designs" status from Panasonic. This designation indicates that neither part is recommended for incorporation into new product designs. However, for existing designs currently using the ECQ-UBAF103VG, the ECQ-UBAF103V2 provides functional continuity.

Compliance & Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to these requirements. The X1 ratings classification is consistent across both parts.

Inventory Availability: The ECQ-UBAF103V2 maintains higher inventory availability (3481 pcs) compared to the ECQ-UBAF103VG (1155 pcs), providing improved supply chain reliability for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-UBAF103V2 be used as a direct replacement for the ECQ-UBAF103VG?

A: Yes. The ECQ-UBAF103V2 is a direct parametric equivalent with identical electrical specifications, mechanical dimensions, lead spacing, and environmental operating range. No circuit modifications or PCB layout adjustments are required.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both parts have identical dimensions of 0.728" L × 0.197" W (18.50 mm × 5.00 mm), with a maximum seated height of 0.591" (15.00 mm) and lead spacing of 0.492" (12.50 mm). They are mechanically interchangeable.

Q: What does "Not For New Designs" mean for both parts?

A: This product status indicates that Panasonic has discontinued active development and support for these models. For new product designs, alternative capacitor models should be evaluated. However, for existing designs currently in production, these parts remain functionally available.

Q: Are both parts RoHS compliant?

A: Yes. Both the ECQ-UBAF103VG and ECQ-UBAF103V2 are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance content.

Q: What is the voltage rating for these capacitors?

A: Both parts are rated for 300V AC operation. There is no DC voltage rating specified for these components.

Q: What applications are these capacitors designed for?

A: Both parts are specified for EMI and RFI suppression applications, with an X1 ratings classification.

Q: Is there a difference in lead spacing between the two parts?

A: No. Both parts have identical lead spacing of 0.492" (12.50 mm), ensuring compatibility with the same PCB footprint.

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