167103K250A-F Film Capacitor: Equivalent & Substitute Parts

Part Overview

The 167103K250A-F is a 10000 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 167 series. This radial through-hole component features polyester metallized dielectric construction with 250V DC voltage rating and ±10% capacitance tolerance. The part is Active status and ROHS3 compliant, designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. Substitute parts are identified when design requirements permit voltage rating upgrades, tolerance improvements, or alternative packaging configurations while maintaining core electrical specifications.

Key Parameters

Parameter	Specification
Capacitance	10000 pF
Tolerance	±10%
Voltage Rating - DC	250V
Voltage Rating - AC	160V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.295" (7.50mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 167103K250A-F is determined by the following criteria:

Direct Electrical Equivalence: Parts maintaining identical capacitance (10000 pF), voltage rating (250V DC / 160V AC), tolerance (±10%), dielectric material (polyester metallized), and operating temperature range (-55°C to 125°C) qualify as direct substitutes.

Tolerance Upgrade: Parts with improved tolerance (±5% instead of ±10%) while maintaining all other electrical parameters are classified as upgrades, suitable when tighter capacitance control is required.

Voltage Rating Upgrade: Parts rated for 400V DC / 200V AC with identical capacitance, tolerance, and dielectric material are parametric equivalents, applicable in designs where higher voltage margin is beneficial.

Manufacturer Variation: Parts from alternative manufacturers (EPCOS - TDK Electronics) with identical electrical specifications and through-hole radial packaging are classified as similar substitutes, subject to lead spacing and physical dimension compatibility.

Packaging Variation: Differences in bulk versus cut tape packaging do not affect electrical performance but impact procurement and assembly workflows.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Size L x W (mm)	Height Max (mm)	Lead Spacing (mm)	Packaging	Inventory
167103K250A-F	CDE	10000 pF	±10%	250V	160V	Polyester, Metallized	10.50 x 3.50	7.00	7.50	Bulk	822
DME2S1K-F	CDE	10000 pF	±10%	250V	160V	Polyester, Metallized	10.30 x 4.50	9.00	7.50	Bulk	1095
167103J250A-F	CDE	10000 pF	±5%	250V	160V	Polyester, Metallized	10.50 x 3.50	7.00	7.50	Bulk	2433
167103J400A-F	CDE	10000 pF	±5%	400V	200V	Polyester, Metallized	10.50 x 3.50	7.00	7.50	Bulk	4201
DME4S1K-F	CDE	10000 pF	±10%	400V	200V	Polyester, Metallized	10.30 x 4.30	7.40	7.50	Bulk	3977
167103K400A-F	CDE	10000 pF	±10%	400V	200V	Polyester, Metallized	10.50 x 3.50	7.00	7.50	Bulk	3743
B32529C3103K000	EPCOS - TDK	10000 pF	±10%	250V	160V	Polyester PET, Metallized - Stacked	7.30 x 2.50	6.50	5.00	Bulk	2668
B32529C3103K189	EPCOS - TDK	10000 pF	±10%	250V	160V	Polyester PET, Metallized - Stacked	7.30 x 2.50	6.50	5.00	Cut Tape	8934
B32529C3103K289	EPCOS - TDK	10000 pF	±10%	250V	160V	Polyester PET, Metallized - Stacked	7.30 x 2.50	6.50	5.00	Cut Tape	6500

Engineering Selection Recommendations

Direct Substitution (Same Electrical Specifications):

DME2S1K-F serves as a direct electrical equivalent with identical capacitance, tolerance, voltage rating, and operating temperature. Physical dimensions differ (height 9.00mm vs. 7.00mm, width 4.50mm vs. 3.50mm), requiring PCB layout verification. Both parts are ROHS3 compliant and Active status.

Tolerance Upgrade Selection:

167103J250A-F provides improved ±5% tolerance while maintaining 250V DC rating and identical physical footprint (10.50 x 3.50mm). This upgrade is applicable when circuit design requires tighter capacitance control. Inventory availability is higher (2433 units). ROHS3 compliant, Active status.

Voltage Rating Upgrade Selection:

167103J400A-F and 167103K400A-F both provide 400V DC / 200V AC rating with 10000 pF capacitance. The 167103J400A-F combines voltage upgrade with ±5% tolerance improvement. The 167103K400A-F maintains ±10% tolerance. Both share identical physical dimensions with the main part (10.50 x 3.50mm). Selection depends on tolerance requirements. Both ROHS3 compliant, Active status.

DME4S1K-F offers 400V DC rating with ±10% tolerance but differs in physical dimensions (10.30 x 4.30mm, height 7.40mm). ROHS3 compliant, Active status.

Alternative Manufacturer Selection:

EPCOS - TDK Electronics B32529C series (B32529C3103K000, B32529C3103K189, B32529C3103K289) provide equivalent 10000 pF, ±10%, 250V DC specifications with polyester PET metallized dielectric. These parts feature significantly different physical dimensions (7.30 x 2.50mm, height 6.50mm) and reduced lead spacing (5.00mm vs. 7.50mm), requiring PCB redesign. All variants are ROHS3 compliant and Active status. B32529C3103K189 and B32529C3103K289 are available in cut tape packaging with higher inventory (8934 and 6500 units respectively). B32529C3103K189 and B32529C3103K289 carry AEC-Q200 automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can DME2S1K-F replace 167103K250A-F in existing designs without PCB modification?

A: DME2S1K-F maintains identical electrical specifications and lead spacing (7.50mm). However, physical dimensions differ: height increases from 7.00mm to 9.00mm and width from 3.50mm to 4.50mm. PCB layout verification is required to confirm clearance compatibility.

Q: What is the difference between 167103J250A-F and 167103K250A-F?

A: Both parts share identical voltage rating (250V DC), capacitance (10000 pF), physical dimensions, and lead spacing. The primary difference is tolerance: 167103J250A-F provides ±5% tolerance versus ±10% for 167103K250A-F. Selection depends on circuit tolerance requirements.

Q: When should 167103J400A-F be selected over 167103K250A-F?

A: 167103J400A-F is selected when the circuit design permits or requires higher voltage margin (400V DC vs. 250V DC) and benefits from improved ±5% tolerance. Physical footprint remains identical, enabling direct PCB substitution. Voltage upgrade provides additional safety margin in high-voltage applications.

Q: Are EPCOS B32529C3103K series parts pin-compatible with 167103K250A-F?

A: EPCOS parts are not pin-compatible. Lead spacing differs significantly: 5.00mm (EPCOS) versus 7.50mm (CDE). Physical dimensions are substantially smaller (7.30 x 2.50mm vs. 10.50 x 3.50mm). PCB redesign is required for substitution.

Q: What is the significance of packaging differences (Bulk vs. Cut Tape)?

A: Packaging affects procurement and assembly workflows. Bulk packaging (167103K250A-F, DME2S1K-F) suits high-volume manufacturing. Cut tape packaging (B32529C3103K189, B32529C3103K289) accommodates automated pick-and-place assembly. Electrical performance is identical.

Q: Can 167103K400A-F be used in place of 167103K250A-F?

A: Yes. 167103K400A-F provides identical capacitance (10000 pF), tolerance (±10%), physical dimensions (10.50 x 3.50mm), and lead spacing (7.50mm). The higher voltage rating (400V DC vs. 250V DC) is backward-compatible with 250V DC designs, providing additional voltage margin. Direct PCB substitution is possible.

Q: What compliance certifications apply to these parts?

A: All CDE parts (167103K250A-F, DME2S1K-F, 167103J250A-F, 167103J400A-F, DME4S1K-F, 167103K400A-F) are ROHS3 compliant and REACH unaffected. EPCOS parts (B32529C3103K000, B32529C3103K189, B32529C3103K289) are ROHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. All parts are classified as EAR99 for export control purposes.

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