M22U683M1 Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier Electronics M22U683M1 is a 0.068 µF ceramic capacitor rated for 100V with Z5U temperature coefficient and ±20% tolerance, designed for general-purpose through-hole applications. This part is obsolete, requiring identification of alternative components for new designs and production orders. Substitute parts maintain the same capacitance and voltage rating while offering improved performance characteristics through enhanced tolerance ratings and temperature stability.

Key Parameters

Parameter	Main Part (M22U683M1)
Capacitance	0.068 µF
Voltage Rating	100V
Tolerance	±20%
Temperature Coefficient	Z5U
Operating Temperature Range	10°C to 85°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.200" (5.08 mm)
Manufacturer	Cornell Dubilier Electronics (CDE)
RoHS Status	RoHS Non-Compliant

Substitute Part Grouping Explanation

Direct substitutes for the M22U683M1 are selected based on the following criteria:

Fixed Parameters (Must Match Exactly):

Capacitance: 0.068 µF
Mounting Type: Through Hole
Package Type: Radial
Lead Spacing: 0.200" (5.08 mm)

Flexible Parameters (Allow Improvement):

Voltage Rating: 100V minimum (upgrades to 200V or 250V acceptable)
Tolerance: ±20% or better (±1%, ±2%, ±5%, ±10% acceptable)
Temperature Coefficient: C0G/NP0 with expanded operating range acceptable
RoHS Compliance: ROHS3 preferred over non-compliant status

All substitute parts are manufactured by KEMET from the GoldMax 300 Comm C0G series, offering improved environmental compliance and performance specifications while maintaining mechanical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Temperature Coefficient	Operating Temperature	RoHS Status	Product Status
M22U683M1	CDE	0.068 µF	100V	±20%	Z5U	10°C to 85°C	Non-Compliant	Obsolete
C330C683F1G5TA	KEMET	0.068 µF	100V	±1%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683F2G5TA	KEMET	0.068 µF	200V	±1%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683FAG5TA	KEMET	0.068 µF	250V	±1%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683G1G5TA	KEMET	0.068 µF	100V	±2%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683G2G5TA	KEMET	0.068 µF	200V	±2%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683GAG5TA	KEMET	0.068 µF	250V	±2%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683J1G5TA	KEMET	0.068 µF	100V	±5%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683J2G5TA	KEMET	0.068 µF	200V	±5%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683JAG5TA	KEMET	0.068 µF	250V	±5%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active
C330C683K1G5TA	KEMET	0.068 µF	100V	±10%	C0G, NP0	-55°C to 125°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Compliance and Product Status Criteria:

All KEMET substitute parts listed are Active components with ROHS3 compliance, compared to the M22U683M1's obsolete status and non-compliant RoHS rating. Selection should prioritize ROHS3-compliant parts for new designs and production transitions.

Voltage Rating Selection:

C330C683F1G5TA, C330C683G1G5TA, C330C683J1G5TA, C330C683K1G5TA: Rated for 100V, matching the original part specification.
C330C683F2G5TA, C330C683G2G5TA, C330C683J2G5TA: Rated for 200V, providing voltage margin for circuits with potential surge conditions.
C330C683FAG5TA, C330C683GAG5TA, C330C683JAG5TA: Rated for 250V, suitable for extended voltage protection requirements.

Tolerance and Temperature Stability:

Parts with ±1% tolerance offer superior frequency stability across temperature ranges compared to the original ±20% specification. C0G/NP0 temperature coefficient provides stable capacitance across the expanded -55°C to 125°C operating range, improving performance in industrial and automotive applications.

Frequently Asked Questions (FAQ)

Q: Can C330C683F2G5TA (200V) be used in place of M22U683M1 (100V)?

A: Yes. The 200V rating is compatible with 100V circuit requirements. Higher voltage-rated capacitors operate safely at lower voltages. Physical dimensions and lead spacing are compatible; however, height differs at 0.420" versus 0.320" maximum.

Q: What is the difference between ±1%, ±2%, ±5%, and ±10% tolerance versions?

A: These variants represent different capacitance accuracy specifications. ±1% tolerances provide the tightest capacitance range, suitable for precision circuits. ±20% (original part) allows wide variation; KEMET alternatives with tighter tolerances enable better circuit performance in frequency-dependent applications.

Q: Are all KEMET substitutes electrically compatible with the original CDE M22U683M1?

A: Yes, all listed KEMET parts maintain the same 0.068 µF capacitance value, 0.200" lead spacing, and radial through-hole mounting. They provide direct electrical substitution with improved temperature coefficient stability (C0G/NP0 versus Z5U).

Q: Why is the operating temperature range different (-55°C to 125°C versus 10°C to 85°C)?

A: KEMET C0G/NP0 temperature coefficient specifications include a wider operational envelope. Circuits designed for the original 10°C to 85°C range remain fully compatible; the expanded range accommodates extended industrial or automotive environmental requirements.

Q: Which substitute part is the closest match to the original M22U683M1?

A: C330C683K1G5TA provides the closest electrical match, offering ±10% tolerance at 100V with C0G/NP0 stability, representing a controlled upgrade path from the ±20% original specification.

Q: Are there differences in physical dimensions between substitute parts?

A: KEMET C330C parts share 0.280" length and 0.200" lead spacing, but height varies: 100V versions are 0.360" maximum, 200V versions are 0.420" maximum, and 250V versions return to 0.360" maximum. Verify PCB layout clearance before substitution.

Q: Do all substitute parts comply with RoHS regulations?

A: Yes. All listed KEMET parts are ROHS3 compliant, addressing the non-compliant status of the obsolete M22U683M1. REACH status is unaffected for all parts.

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