Equivalent & Substitute Parts for F1778333M2DBB0

Part Overview

The F1778333M2DBB0 is a 0.033 µF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, rated for 630V DC operation with polypropylene metallized dielectric. This radial through-hole component is designed for EMI and RFI suppression applications and maintains Active product status. Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications align with the original component's operational requirements.

Key Parameters

Parameter	Value
Capacitance	0.033 µF
Tolerance	±20%
Voltage Rating - DC	630V
Voltage Rating - AC	310V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-55°C to 110°C
Mounting Type	Through Hole
Package / Case	Radial
Size / Dimension	0.492" L x 0.157" W (12.50mm x 4.00mm)
Height - Seated (Max)	0.394" (10.00mm)
Lead Spacing	0.394" (10.00mm)
Termination	PC Pins
Ratings	X2
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the F1778333M2DBB0 are qualified based on the following critical parameters:

Capacitance value: 0.033 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage ratings: 630V DC / 310V AC (exact match required)
Dielectric material: Polypropylene (PP), Metallized (exact match required)
Operating temperature range: -55°C to 110°C (exact match required)
Mounting type: Through Hole (exact match required)
Package type: Radial (exact match required)
Physical dimensions: 0.492" L x 0.157" W, 0.394" height, 0.394" lead spacing (exact match required)
Termination: PC Pins (exact match required)
Ratings classification: X2 (exact match required)
Compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The identified substitute parts BFC233620333 and F339MX233331MDA2B0 meet all these criteria and are manufactured by the same supplier, ensuring functional and mechanical interchangeability.

Parameter Comparison

Parameter	F1778333M2DBB0	BFC233620333	F339MX233331MDA2B0
Manufacturer	Vishay Beyschlag/Draloric/BC Components	Vishay Beyschlag/Draloric/BC Components	Vishay Beyschlag/Draloric/BC Components
Capacitance	0.033 µF	0.033 µF	0.033 µF
Tolerance	±20%	±20%	±20%
Voltage Rating - DC	630V	630V	630V
Voltage Rating - AC	310V	310V	310V
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized
Operating Temperature	-55°C to 110°C	-55°C to 110°C	-55°C to 110°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial
Size / Dimension	0.492" L x 0.157" W (12.50mm x 4.00mm)	0.492" L x 0.157" W (12.50mm x 4.00mm)	0.492" L x 0.157" W (12.50mm x 4.00mm)
Height - Seated (Max)	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Termination	PC Pins	PC Pins	PC Pins
Ratings	X2	X2	X2
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three components—F1778333M2DBB0, BFC233620333, and F339MX233331MDA2B0—are Active products from Vishay Beyschlag/Draloric/BC Components with identical electrical and mechanical specifications. Each part is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for industrial and commercial applications.

Selection between these parts may be based on inventory availability and lead time considerations. The F1778333M2DBB0 has 834 units in stock, BFC233620333 has 6240 units available, and F339MX233331MDA2B0 has 1728 units in stock. All parts are suitable for direct substitution in EMI and RFI suppression circuits operating within the specified voltage and temperature parameters.

Frequently Asked Questions (FAQ)

Q: Can BFC233620333 be used as a direct replacement for F1778333M2DBB0?

A: Yes. Both components share identical electrical specifications (0.033 µF, ±20%, 630V DC, 310V AC), dielectric material (polypropylene metallized), operating temperature range (-55°C to 110°C), and mechanical dimensions (0.492" L x 0.157" W, 0.394" height, 0.394" lead spacing). Both are radial through-hole components with PC pin termination and X2 ratings.

Q: What is the difference between F339MX233331MDA2B0 and the other two parts?

A: F339MX233331MDA2B0 is functionally equivalent to F1778333M2DBB0 and BFC233620333 across all critical parameters. The primary difference is the series designation (F339M versus F1778X2 and MKP336 2), which reflects different product lines within the same manufacturer. All three parts meet identical electrical and mechanical requirements.

Q: Are there any compatibility concerns when substituting these parts on a PCB?

A: No compatibility concerns exist. All three parts have identical lead spacing (0.394"), physical dimensions (0.492" L x 0.157" W), and mounting type (through-hole radial). They are mechanically and electrically interchangeable without PCB layout modifications.

Q: Do all substitute parts have the same moisture sensitivity level?

A: No. F1778333M2DBB0 and F339MX233331MDA2B0 list Moisture Sensitivity Level as Not Applicable, while BFC233620333 specifies MSL 1 (Unlimited). This difference does not affect substitution suitability for standard industrial applications.

Q: Which part should I select based on availability?

A: BFC233620333 offers the highest inventory (6240 units), followed by F339MX233331MDA2B0 (1728 units) and F1778333M2DBB0 (834 units). Selection should be based on procurement lead time and supply chain requirements for your application.

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