K334M20X7RF53L2 Equivalent & Substitute Parts

Part Overview

The K334M20X7RF53L2 is a 0.33 µF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by Vishay Beyschlag/Draloric/BC Components. This radial through-hole component is designed for general-purpose applications requiring stable capacitance across a wide temperature range. The part is currently active in production with ROHS3 compliance and maintains 702 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value
Capacitance	0.33 µF
Voltage Rating	50V
Tolerance	±20%
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Style	Straight
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the K334M20X7RF53L2 is determined by the following critical parameters:

Electrical Equivalence Requirements:

Capacitance value: 0.33 µF (exact match required)
Voltage rating: 50V minimum (equal or higher acceptable)
Tolerance: ±20% (matching tolerance band)

Mechanical Compatibility Requirements:

Mounting type: Through Hole (radial configuration)
Lead style: Straight leads (for standard PCB hole spacing)
Package dimensions: Compatible with 0.098" (2.50mm) lead spacing

Compliance & Status Requirements:

Product status: Active
RoHS compliance: ROHS3 Compliant

Two substitute parts meet these criteria with variations in temperature coefficient and physical dimensions that do not affect functional substitution within the specified parameters.

Parameter Comparison

Parameter	K334M20X7RF53L2 (Main)	1C10Z5U334M050B	K334M20X7RF53H5
Capacitance	0.33 µF	0.33 µF	0.33 µF
Voltage Rating	50V	50V	50V
Tolerance	±20%	±20%	±20%
Temperature Coefficient	X7R	Z5U	X7R
Operating Temperature	-55°C ~ 125°C	10°C ~ 85°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial	Radial	Radial
Lead Style	Straight	Straight	Formed Leads
Lead Spacing	0.098" (2.50mm)	0.100" (2.54mm)	0.197" (5.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

K334M20X7RF53H5 is the primary substitute for K334M20X7RF53L2. Both parts share identical electrical specifications (0.33 µF, 50V, ±20%, X7R temperature coefficient) and identical operating temperature range (-55°C ~ 125°C). The physical difference is lead spacing (0.197" vs. 0.098") and lead style (formed vs. straight), which requires PCB layout verification. Both parts are ROHS3 compliant, active in production, and manufactured by the same supplier. Inventory availability is significantly higher for K334M20X7RF53H5 (15,906 units vs. 702 units).

1C10Z5U334M050B is an alternative substitute with identical capacitance, voltage, and tolerance specifications. The temperature coefficient differs (Z5U vs. X7R), resulting in a narrower operating temperature range (10°C ~ 85°C vs. -55°C ~ 125°C). This part is suitable only for applications where the operating environment remains within the Z5U temperature limits. Lead spacing is 0.100" (2.54mm), requiring PCB layout compatibility assessment. This part is ROHS3 compliant and active in production with higher inventory availability (4,829 units).

Frequently Asked Questions (FAQ)

Q: Can K334M20X7RF53H5 replace K334M20X7RF53L2 directly on the PCB?

A: Electrical substitution is valid. However, the lead spacing differs (0.197" vs. 0.098"), and the lead style is formed rather than straight. PCB hole spacing must accommodate the 0.197" (5.00mm) lead pitch before direct substitution.

Q: What is the difference between X7R and Z5U temperature coefficients?

A: X7R maintains stable capacitance across -55°C to 125°C with minimal variation. Z5U provides stable capacitance only within 10°C to 85°C. Selection depends on the application's operating temperature requirements.

Q: Is 1C10Z5U334M050B suitable for all applications using K334M20X7RF53L2?

A: Only if the application operates exclusively within the 10°C to 85°C temperature range. Applications requiring operation below 10°C or above 85°C must use X7R-rated parts (K334M20X7RF53L2 or K334M20X7RF53H5).

Q: Are all three parts ROHS3 compliant?

A: Yes. K334M20X7RF53L2, 1C10Z5U334M050B, and K334M20X7RF53H5 are all ROHS3 compliant and REACH unaffected.

Q: Which substitute has the best inventory availability?

A: K334M20X7RF53H5 has 15,906 units in stock, compared to 702 units for the main part and 4,829 units for 1C10Z5U334M050B.

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