FN3330073 Equivalent & Substitute Parts

Part Overview

The FN3330073 is a 33.333 MHz XO (Standard) CMOS oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FN series. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality, designed for applications requiring precise frequency generation in a compact 4-SMD, No Lead package. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category.

Key Parameters

Parameter	Value
Frequency	33.333 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±50ppm
Operating Temperature Range	-40°C ~ 85°C
Maximum Supply Current	25mA
Disable Mode Current	10µA
Package Type	4-SMD, No Lead
Package Dimensions	7.00mm x 5.00mm x 1.80mm (max height)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the FN3330073 are identified based on strict equivalence across the following critical parameters:

Frequency: 33.333 MHz (exact match required)
Output Configuration: CMOS logic output
Supply Voltage: 3.3V operation
Functional Control: Enable/Disable capability
Frequency Stability: ±50ppm tolerance
Operating Temperature Range: -40°C ~ 85°C
Package Type: 4-SMD, No Lead form factor
Physical Dimensions: 7.00mm x 5.00mm footprint
Compliance: RoHS3 and REACH status alignment

The FN3330075 qualifies as a parametric equivalent based on identical electrical specifications and mechanical compatibility within the same product series.

Parameter Comparison

Parameter	FN3330073	FN3330075	Match Status
Manufacturer	Diodes Incorporated	Diodes Incorporated	Identical
Series	SaRonix-eCera™ FN	SaRonix-eCera™ FN	Identical
Frequency	33.333 MHz	33.333 MHz	Identical
Output Type	CMOS	CMOS	Identical
Supply Voltage	3.3V	3.3V	Identical
Function	Enable/Disable	Enable/Disable	Identical
Frequency Stability	±50ppm	±50ppm	Identical
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Identical
Maximum Supply Current	25mA	25mA	Identical
Disable Mode Current	10µA	10µA	Identical
Package Type	4-SMD, No Lead	4-SMD, No Lead	Identical
Package Dimensions	7.00mm x 5.00mm x 1.80mm	7.00mm x 5.00mm x 1.80mm	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both FN3330073 and FN3330075 are active production parts from Diodes Incorporated with full RoHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and supply chain requirements rather than functional or electrical differences. Both parts meet identical specifications for frequency, output characteristics, voltage operation, temperature range, and package form factor. The FN3330075 currently maintains higher inventory levels (1225 pcs vs. 933 pcs), which may influence procurement decisions for high-volume applications. No functional testing or design modifications are required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can FN3330075 be used as a direct replacement for FN3330073?

A: Yes. Both parts are parametrically equivalent with identical electrical specifications, frequency output, supply voltage, enable/disable functionality, frequency stability, operating temperature range, and package dimensions. No circuit modifications are required.

Q: Are there any differences in the 4-SMD, No Lead package between these parts?

A: No. Both parts use identical package specifications with 7.00mm x 5.00mm footprint and 1.80mm maximum seated height, ensuring PCB layout compatibility.

Q: Do both parts have the same compliance certifications?

A: Yes. Both FN3330073 and FN3330075 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings.

Q: What is the significance of the enable/disable function in these oscillators?

A: The enable/disable function allows the oscillator to reduce power consumption to 10µA maximum in disable mode, compared to 25mA in normal operation. This feature is identical across both parts.

Q: Are there any thermal or frequency stability differences between these parts?

A: No. Both parts operate across the same temperature range (-40°C ~ 85°C) and maintain identical frequency stability of ±50ppm.

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