SNFPW034708J1BJS00 Equivalent & Substitute Parts

Part Overview

The SNFPW034708J1BJS00 is a 0.47 µF film capacitor manufactured by WIMA from the FKP series. This component is a snubber capacitor rated for 3000V DC (3kV) with 700V AC rating, utilizing polypropylene metallized dielectric technology. The part is designed for high-pulse and DV/DT applications requiring high-voltage energy storage and transient suppression. Product status is Active with 808 units in current inventory. Equivalent substitute parts are identified based on matching electrical specifications, mechanical dimensions, and operational parameters to ensure direct functional replacement in circuit applications.

Substiute Parts

SNFPW034708J1BJS00

WIMAIn Stock: 837SNFPW034708J1BJS00 Datasheet

Current PartRFQ

SNFPW034708J1BJS00

WIMAIn Stock: 837SNFPW034708J1BJS00 Datasheet

Parametric EquivalentRFQ

SNFPW034708J4AJS00

WIMAIn Stock: 1005SNFPW034708J4AJS00 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SNFPW034708J1BJS00 are identified through parametric equivalence. The substitution logic is based on the following critical parameters that must remain constant:

Electrical Parameters (Non-Negotiable):

• Capacitance: 0.47 µF
• Voltage Rating - DC: 3000V (3kV)
• Voltage Rating - AC: 700V
• Tolerance: ±5%
• Dielectric Material: Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Mounting Type: Chassis Mount
• Package / Case: Rectangular Box
• Termination: Screw Terminals
• Physical Dimensions: 56.00mm L x 33.00mm W x 48.00mm H

Environmental Parameters:

• Operating Temperature Range: -55°C ~ 105°C
• Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

Both SNFPW034708J1BJS00 and SNFPW034708J4AJS00 are Active products from WIMA's FKP series and are parametrically equivalent for direct substitution. Selection between these parts should be based on the following engineering considerations:

Inventory Availability: SNFPW034708J4AJS00 maintains higher current stock (966 units) compared to SNFPW034708J1BJS00 (808 units), providing improved supply chain reliability for high-volume procurement.

Compliance & Certifications: Both parts carry identical ECCN (EAR99) and HTSUS (8532.25.0080) classifications, ensuring equivalent regulatory compliance for export and tariff purposes.

Application Suitability: Both parts are rated for High Pulse and DV/DT snubber applications with identical electrical and thermal specifications, confirming functional interchangeability in circuit designs.

Packaging & Logistics: Both parts are supplied in Bulk packaging with identical physical dimensions and screw terminal termination, eliminating mechanical integration concerns.

Frequently Asked Questions (FAQ)

Q: Can SNFPW034708J4AJS00 be used as a direct replacement for SNFPW034708J1BJS00?

A: Yes. Both parts are parametrically equivalent across all critical electrical, mechanical, and environmental specifications. They share identical capacitance (0.47 µF), voltage ratings (3000V DC / 700V AC), dielectric material (polypropylene metallized), physical dimensions (56mm x 33mm x 48mm), and operating temperature range (-55°C to 105°C). Direct substitution requires no circuit modifications.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: capacitance value, DC and AC voltage ratings, tolerance, dielectric material type, mounting configuration, package dimensions, termination style, and operating temperature range. Any deviation in these parameters disqualifies a part from direct substitution.

Q: Are there any differences in reliability or performance between these equivalent parts?

A: No performance or reliability differences exist between SNFPW034708J1BJS00 and SNFPW034708J4AJS00. Both are manufactured by WIMA using identical specifications and materials. Differences are limited to manufacturing batch codes (J1BJS00 vs. J4AJS00) and current inventory levels.

Q: What applications are these capacitors designed for?

A: These capacitors are specified for High Pulse and DV/DT snubber applications. The 3000V DC rating and polypropylene metallized construction provide transient suppression and energy storage capabilities in high-voltage circuits.

Q: What is the significance of the MSL 1 (Unlimited) rating?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning these components have unlimited shelf life under standard storage conditions without requiring special moisture control or baking procedures prior to assembly.

Q: Can these parts be used in applications requiring lower voltage ratings?

A: Yes. Parts rated for 3000V DC can be used in applications requiring lower voltage ratings, provided all other electrical and mechanical parameters remain compatible with the circuit design.

Q: What is the difference between the part number suffixes J1BJS00 and J4AJS00?

A: The suffixes represent different manufacturing batches or internal WIMA production codes. They do not indicate functional or electrical differences. Both parts meet identical specifications and are interchangeable.