Equivalent & Substitute Parts for 5AK101KOFAL

Part Overview

The 5AK101KOFAL is a 100 pF ceramic capacitor rated at 100V with C0G/NP0 temperature coefficient, manufactured by KYOCERA AVX. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part is designed for general-purpose applications requiring stable capacitance across temperature ranges of -30°C to 85°C with radial through-hole mounting.

Key Parameters

Parameter	Value
Manufacturer Part Number	5AK101KOFAL
Manufacturer	KYOCERA AVX
Capacitance	100 pF
Tolerance	±10%
Voltage Rating	100V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-30°C ~ 85°C
Mounting Type	Through Hole
Package Type	Radial, Disc
Lead Style	Formed Leads - Kinked
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 5AK101KOFAL are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Capacitance value: 100 pF (exact match required)
Mounting type: Through Hole, Radial configuration
Lead spacing: 0.197" (5.00mm) nominal
Voltage rating: Minimum 100V (higher ratings acceptable)
Tolerance: ±10% or tighter (±2%, ±5% acceptable)

Secondary Considerations:

Temperature coefficient: Substitute parts use U2J, SL, X7R, or Y5P coefficients, each with different temperature stability characteristics
Operating temperature range: Substitute parts extend to -55°C ~ 125°C, providing broader operational envelope
RoHS3 compliance: All substitute parts are ROHS3 compliant, addressing modern regulatory requirements
Packaging format: Tape & Reel or Bulk options available

The substitutes are grouped by temperature coefficient type, as this parameter significantly affects performance in temperature-sensitive applications while maintaining the same capacitance and voltage specifications.

Parameter Comparison

Parameter	5AK101KOFAL (Main)	D101G29U2JH6TJ5R	D101G39U2JL6TJ5R	D101J20SL0H6TJ5R	D101J25SL0L6TJ5R	D101K20X7RL6TJ5R	D101K20Y5PH6TJ5R	D101K20Y5PH63L6R
Manufacturer	KYOCERA AVX	Vishay Beyschlag	Vishay Beyschlag	Vishay Beyschlag	Vishay Beyschlag	Vishay Beyschlag	Vishay Beyschlag	Vishay Beyschlag
Capacitance	100 pF	100 pF	100 pF	100 pF	100 pF	100 pF	100 pF	100 pF
Tolerance	±10%	±2%	±2%	±5%	±5%	±10%	±10%	±10%
Voltage Rating	100V	100V	500V	100V	500V	500V	100V	100V
Temperature Coefficient	C0G, NP0	U2J	U2J	SL	SL	X7R	Y5P (B)	Y5P (B)
Operating Temperature	-30°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-30°C ~ 125°C	-30°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.250" (6.35mm)
Lead Style	Formed Leads - Kinked	Formed Leads - Kinked	Formed Leads - Kinked	Formed Leads - Kinked	Formed Leads - Kinked	Formed Leads - Kinked	Formed Leads - Kinked	Straight
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are active products from Vishay Beyschlag/Draloric/BC Components with ROHS3 compliance, ensuring regulatory alignment with current manufacturing standards. Selection among substitutes depends on application-specific requirements:

For direct electrical equivalence with tighter tolerance: D101G29U2JH6TJ5R (±2% tolerance, 100V rating) or D101J20SL0H6TJ5R (±5% tolerance, 100V rating) provide improved capacitance stability compared to the original ±10% specification.

For elevated voltage margin: D101G39U2JL6TJ5R (500V, ±2%) or D101J25SL0L6TJ5R (500V, ±5%) accommodate higher voltage stress conditions while maintaining 100 pF capacitance.

For extended temperature operation: All substitute parts operate across -55°C ~ 125°C, exceeding the original -30°C ~ 85°C range. D101K20X7RL6TJ5R (X7R coefficient, 500V) and D101K20Y5PH6TJ5R (Y5P coefficient, 100V) provide broader thermal performance.

For PCB layout compatibility: D101K20Y5PH63L6R maintains identical lead spacing (0.250" / 6.35mm) with straight leads, simplifying board redesign if kinked leads present assembly challenges. All other substitutes retain the original 0.197" (5.00mm) lead spacing with kinked leads.

Frequently Asked Questions (FAQ)

Q: Can D101K20Y5PH63L6R be used as a direct drop-in replacement?

A: D101K20Y5PH63L6R differs in lead style (straight vs. kinked) and lead spacing (0.250" vs. 0.197"), requiring PCB modification. It is functionally equivalent electrically but not a mechanical drop-in replacement without board redesign.

Q: What is the difference between U2J, SL, X7R, and Y5P temperature coefficients?

A: These coefficients define capacitance stability across temperature ranges. U2J and SL provide tighter tolerance bands across temperature. X7R offers moderate stability. Y5P (B) provides broader temperature range (-30°C ~ 125°C) but with larger capacitance variation. Selection depends on circuit sensitivity to capacitance drift.

Q: Are all substitutes compatible with the original 100V circuit requirement?

A: Yes. All substitutes are rated at minimum 100V. Parts rated 500V (D101G39U2JL6TJ5R, D101J25SL0L6TJ5R, D101K20X7RL6TJ5R) provide additional voltage margin and are fully compatible with 100V applications.

Q: What is the inventory status for these substitutes?

A: All substitute parts are in active production with current stock availability ranging from 708 to 17,053 pieces, ensuring procurement reliability for production and repair applications.

Q: Does lead spacing affect circuit performance?

A: Lead spacing affects PCB layout and assembly compatibility but not electrical performance. The 0.197" (5.00mm) spacing matches the original design. The 0.250" (6.35mm) spacing of D101K20Y5PH63L6R requires board modification.

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