Equivalent & Substitute Parts for 168104K50A-F

Part Overview

The Cornell Dubilier Electronics 168104K50A-F is a 0.1 µF film capacitor with ±10% tolerance rated for 50V DC operation. This polyester metallized radial capacitor is designed for general-purpose applications across an operating temperature range of -55°C to 125°C. The part is Active status and ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are necessary when design requirements demand higher voltage ratings, improved tolerance specifications, alternative packaging formats, or when primary inventory becomes unavailable. The substitute parts listed maintain identical capacitance and core electrical characteristics while offering enhanced performance parameters or packaging options.

Key Parameters

Parameter	Value
Capacitance	0.1 µF
Tolerance	±10%
Voltage Rating - DC	50V
Voltage Rating - AC	30V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.197" (5.00mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 168104K50A-F is determined by the following criteria:

Primary Substitution Criteria:

Capacitance value: 0.1 µF (exact match required)
Dielectric material: Polyester, Metallized (exact match required)
Mounting type: Through Hole (exact match required)
Package case: Radial (exact match required)
Lead spacing: 0.197" / 5.00mm (exact match required)
Operating temperature: -55°C to 125°C (exact match required)

Allowable Variations:

Voltage rating: Equal to or greater than 50V DC
Tolerance: Equal to or tighter than ±10%
Packaging format: Bulk, Cut Tape, or Tape & Box
Manufacturer: Cornell Dubilier Electronics or equivalent qualified manufacturers
Compliance: ROHS3 compliant

Substitute parts are grouped into three categories: Direct Manufacturer Substitutes (same manufacturer, enhanced voltage), Upgrade Substitutes (improved tolerance or voltage), and Parametric Equivalents (alternative manufacturers with identical electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Lead Spacing	Packaging	Inventory
168104K50A-F	Cornell Dubilier	0.1 µF	±10%	50V	30V	Polyester, Metallized	5.00mm	Bulk	802 Pcs
168104K100H-F	Cornell Dubilier	0.1 µF	±10%	100V	63V	Polyester, Metallized	5.00mm	Bulk	5320 Pcs
168104J100H-F	Cornell Dubilier	0.1 µF	±5%	100V	63V	Polyester, Metallized	5.00mm	Bulk	19920 Pcs
168104J50A-F	Cornell Dubilier	0.1 µF	±5%	50V	30V	Polyester, Metallized	5.00mm	Bulk	6874 Pcs
168104J63A-F	Cornell Dubilier	0.1 µF	±5%	63V	40V	Polyester, Metallized	5.00mm	Bulk	889 Pcs
185104J63RAA-F	Cornell Dubilier	0.1 µF	±5%	63V	—	Polyester, Metallized	5.00mm	Cut Tape	5316 Pcs
168104K63A-F	Cornell Dubilier	0.1 µF	±10%	63V	40V	Polyester, Metallized	5.00mm	Bulk	2605 Pcs
B32529C0104J000	EPCOS - TDK	0.1 µF	±5%	63V	40V	Polyester, PET, Metallized - Stacked	5.00mm	Bulk	35600 Pcs
B32529C0104J289	EPCOS - TDK	0.1 µF	±5%	63V	40V	Polyester, PET, Metallized - Stacked	5.00mm	Tape & Box	2210 Pcs
B32529C0104K000	EPCOS - TDK	0.1 µF	±10%	63V	40V	Polyester, PET, Metallized - Stacked	5.00mm	Bulk	90900 Pcs
B32529C0104K189	EPCOS - TDK	0.1 µF	±10%	63V	40V	Polyester, PET, Metallized - Stacked	5.00mm	Unspecified	33400 Pcs

Engineering Selection Recommendations

Direct Voltage-Rated Substitutes (Same Tolerance):

The 168104K63A-F provides a parametric equivalent with identical ±10% tolerance and same-manufacturer sourcing. This part increases voltage rating from 50V to 63V DC while maintaining all other electrical and mechanical specifications. Selection is appropriate when circuit design permits higher voltage margin without cost or space constraints.

The 168104K100H-F offers the highest voltage rating at 100V DC with ±10% tolerance, providing maximum voltage headroom for applications requiring enhanced reliability margins. This part maintains identical physical dimensions and lead spacing.

Tolerance-Upgraded Substitutes:

The 168104J50A-F provides tighter ±5% tolerance at the original 50V DC rating. This upgrade is suitable for applications with stricter capacitance value requirements while maintaining identical voltage specifications and physical form factor.

The 168104J63A-F combines ±5% tolerance with 63V DC rating, offering both tolerance and voltage improvements over the base part.

The 168104J100H-F represents the highest specification upgrade within the Cornell Dubilier 168 series, combining ±5% tolerance with 100V DC rating. This part shows highest inventory availability at 19920 pieces.

Alternative Manufacturer Equivalents:

The EPCOS B32529C series parts (B32529C0104K000, B32529C0104K189, B32529C0104J000, B32529C0104J289) provide parametric equivalents from a qualified alternative manufacturer. These parts maintain identical capacitance, tolerance options, and voltage ratings while offering significantly higher inventory levels. The B32529C0104K000 shows 90900 pieces in stock. EPCOS parts carry AEC-Q200 automotive qualification and are suitable for automotive and EMI/RFI suppression applications.

Packaging Format Alternatives:

The 185104J63RAA-F offers Cut Tape packaging with ±5% tolerance and 63V DC rating, providing an alternative to Bulk packaging when tape format is required for automated assembly processes.

Selection Criteria Summary:

Use 168104K50A-F when original specifications are mandatory and inventory is available
Use 168104J50A-F for improved tolerance at same voltage rating
Use 168104K63A-F or 168104J63A-F for moderate voltage increase
Use 168104K100H-F or 168104J100H-F for maximum voltage margin
Use B32529C series for high-volume requirements or automotive applications
Use 185104J63RAA-F when Cut Tape packaging is required

All listed substitutes are Active status products with ROHS3 compliance and -55°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can 168104K100H-F be used as a direct replacement for 168104K50A-F?

A: Yes. The 168104K100H-F is a direct mechanical and electrical substitute. It maintains identical capacitance (0.1 µF), tolerance (±10%), physical dimensions, lead spacing (5.00mm), and operating temperature range. The higher voltage rating (100V vs 50V) is a superset specification that does not affect compatibility in circuits designed for 50V operation.

Q: What is the difference between tolerance grades ±10% and ±5%?

A: Tolerance specifies the allowable deviation from the nominal capacitance value. A ±10% part (168104K50A-F) can vary between 0.09 µF and 0.11 µF. A ±5% part (168104J50A-F) can vary between 0.095 µF and 0.105 µF. Tighter tolerance (±5%) is required for applications with strict capacitance value requirements, such as precision filtering or timing circuits.

Q: Are EPCOS B32529C parts compatible with Cornell Dubilier 168 series parts?

A: Yes, within the specified parameters. Both manufacturers produce 0.1 µF polyester metallized radial film capacitors with identical lead spacing (5.00mm), operating temperature range (-55°C to 125°C), and available tolerance/voltage combinations. Physical dimensions are nearly identical (7.20mm vs 7.30mm length). EPCOS parts carry AEC-Q200 automotive qualification, making them suitable for automotive applications where Cornell Dubilier parts may not be specified.

Q: What does "Bulk" packaging mean versus "Cut Tape"?

A: Bulk packaging indicates loose components supplied in quantity without tape or reel format. Cut Tape (CT) indicates components are supplied on carrier tape cut to specified lengths, suitable for manual handling or certain automated assembly equipment. Tape & Box (TB) indicates tape-packaged components supplied in a box. Selection depends on assembly process requirements.

Q: Can I substitute a 63V-rated part in a circuit designed for 50V?

A: Yes. A higher voltage rating is a superset specification. A 63V or 100V rated capacitor operates safely in a 50V circuit. The voltage rating indicates the maximum voltage the capacitor can withstand; operating at lower voltages does not degrade performance or reliability.

Q: Why do some parts show higher inventory than others?

A: Inventory levels reflect current stock availability and market demand. Parts with higher inventory (such as 168104J100H-F with 19920 pieces or B32529C0104K000 with 90900 pieces) may indicate higher production volumes, broader market acceptance, or recent manufacturing runs. Higher inventory availability can reduce lead times for procurement.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All parts listed—both Cornell Dubilier and EPCOS—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the part number suffix (e.g., -F, -RAA)?

A: The suffix indicates packaging format and configuration. The -F suffix indicates standard Bulk packaging with PC pins. The -RAA suffix (as in 185104J63RAA-F) indicates Cut Tape packaging. These suffixes are manufacturer-specific designations that do not affect electrical performance but determine how components are supplied and handled during assembly.

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