FN3600021 Equivalent & Substitute Parts

Part Overview

The FN3600021 is a 36 MHz XO (Standard) CMOS oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FN series. This component operates at 3.3V with Enable/Disable functionality and is housed in a 4-SMD, No Lead package. The part is currently Active in product status with 995 units in stock.

Substitute parts become necessary when the primary component reaches end-of-life status, experiences supply constraints, or when design requirements allow for compatible alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

FN3600021

Diodes IncorporatedIn Stock: 1064FN3600021 Datasheet

Current PartRFQ

7W-36.000MBB-T

TXC CORPORATIONIn Stock: 32457W-36.000MBB-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN3600021 is determined by strict alignment of the following parameters:

• Frequency: Must be exactly 36 MHz
• Output Type: Must be CMOS
• Supply Voltage: Must be 3.3V
• Function: Must support Enable/Disable
• Frequency Stability: Must be ±50ppm
• Package Type: Must be 4-SMD, No Lead
• Package Dimensions: Must be 7.00mm x 5.00mm
• Mounting Type: Must be Surface Mount

The substitute part 7W-36.000MBB-T (TXC CORPORATION) meets all these core electrical and mechanical parameters, making it a valid equivalent for applications where the FN3600021 is specified.

Parameter Comparison

Engineering Selection Recommendations

The FN3600021 is the preferred primary selection due to its Active product status and ROHS3 compliance. The 7W-36.000MBB-T serves as a functional equivalent when the primary part is unavailable.

Selection considerations based on provided specifications:

• Primary Part (FN3600021): Active status ensures long-term availability and supply continuity. ROHS3 compliance meets current regulatory requirements.
• Substitute Part (7W-36.000MBB-T): Obsolete status indicates limited future availability. RoHS compliance (non-ROHS3) may require evaluation against specific regulatory requirements for your application.

Both parts share identical core electrical parameters (frequency, output type, supply voltage, function, and frequency stability) and mechanical compatibility (package type and dimensions). Differences in operating temperature range and maximum supply current exist but do not affect substitution eligibility when the specified parameters are met.

Frequently Asked Questions (FAQ)

Q: Can the 7W-36.000MBB-T replace the FN3600021 in existing designs?

A: Yes. Both parts meet the same electrical specifications (36 MHz, CMOS output, 3.3V supply, Enable/Disable function, ±50ppm stability) and share identical package dimensions (7.00mm x 5.00mm, 4-SMD, No Lead). Physical and electrical compatibility is confirmed.

Q: What are the differences between these parts?

A: The FN3600021 operates across -40°C to 85°C, while the 7W-36.000MBB-T operates across -10°C to 70°C. Maximum supply current differs (25mA vs. 20mA). The FN3600021 has a maximum seated height of 1.80mm compared to 1.42mm for the substitute. The FN3600021 is Active; the 7W-36.000MBB-T is Obsolete.

Q: Are there compliance differences?

A: The FN3600021 is ROHS3 Compliant. The 7W-36.000MBB-T is RoHS Compliant (non-ROHS3). Both are REACH Unaffected and carry EAR99 ECCN classification.

Q: Does package height affect PCB layout?

A: The 7W-36.000MBB-T has a lower maximum seated height (1.42mm vs. 1.80mm). This difference is within typical PCB clearance tolerances but should be verified against your specific board design constraints.

Q: Which part should I specify for new designs?

A: Specify the FN3600021 for new designs. It is Active, ROHS3 compliant, and offers the wider operating temperature range (-40°C to 85°C).