LFXTAL061070 Equivalent & Substitute Parts

Part Overview

The LFXTAL061070 is a 12 MHz fundamental mode crystal oscillator manufactured by IQD Frequency Products, designed for surface mount applications in the CFPX-180 series. This active product features an 18pF load capacitance, 120 Ohms equivalent series resistance, and operates across the -40°C to 85°C temperature range. The component is packaged in a 4-SMD, No Lead configuration with dimensions of 3.20mm x 2.50mm and a maximum seated height of 0.80mm.

Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and compliance certifications. Alternative sources provide design flexibility, supply chain redundancy, and inventory availability across multiple manufacturers.

Key Parameters

Parameter	Value
Frequency	12 MHz
Frequency Tolerance	±20ppm
Frequency Stability	±30ppm
Load Capacitance	18pF
ESR (Equivalent Series Resistance)	120 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-40°C to 85°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	3.20mm x 2.50mm
Height - Seated (Max)	0.80mm
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LFXTAL061070 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical specifications across all critical parameters: 12 MHz frequency, ±20ppm tolerance, ±30ppm stability, 18pF load capacitance, 120 Ohms ESR, fundamental operating mode, -40°C to 85°C temperature range, 4-SMD No Lead package, and 3.20mm x 2.50mm dimensions. These parts are direct replacements with no circuit design modifications required.

Similar Parts match the primary electrical specifications (frequency, tolerance, stability, load capacitance, operating mode, temperature range, and package type) but differ in ESR value (100 Ohms versus 120 Ohms). These parts are functionally compatible in applications where the ESR variance falls within circuit design tolerances.

The following parameters determine substitution eligibility:

Frequency: 12 MHz (mandatory match)
Frequency Tolerance: ±20ppm (mandatory match)
Load Capacitance: 18pF (mandatory match)
Operating Mode: Fundamental (mandatory match)
Package / Case: 4-SMD, No Lead (mandatory match)
Dimensions: 3.20mm x 2.50mm (mandatory match)
Temperature Range: -40°C to 85°C (mandatory match)
ESR: 120 Ohms (parametric equivalent) or 100 Ohms (similar)

Parameter Comparison

Parameter	LFXTAL061070 (IQD)	LFXTAL055295 (IQD)	ECS-120-18-33-JGN-TR (ECS Inc.)	RH100-12.000-18-2030-EXT-TR (Raltron)	830055295 (Würth Elektronik)
Manufacturer	IQD Frequency Products	IQD Frequency Products	ECS Inc.	Raltron Electronics	Würth Elektronik
Frequency	12 MHz	12 MHz	12 MHz	12 MHz	12 MHz
Frequency Tolerance	±20ppm	±20ppm	±20ppm	±20ppm	±20ppm
Frequency Stability	±30ppm	±30ppm	±30ppm	±30ppm	±30ppm
Load Capacitance	18pF	18pF	18pF	18pF	18pF
ESR (Equivalent Series Resistance)	120 Ohms	120 Ohms	100 Ohms	100 Ohms	120 Ohms
Operating Mode	Fundamental	Fundamental	Fundamental	Fundamental	Fundamental
Operating Temperature Range	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm
Height - Seated (Max)	0.80mm	0.80mm	0.80mm	0.80mm	0.80mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Series	CFPX-180	CFPX-180	ECX-32	RH100	WE-XTAL

Engineering Selection Recommendations

Parametric Equivalent Selection (Direct Replacement)

The LFXTAL055295 (IQD Frequency Products) and 830055295 (Würth Elektronik) are parametric equivalents to the LFXTAL061070. Both parts maintain identical electrical and mechanical specifications, including 120 Ohms ESR. These parts are suitable for direct substitution without circuit design modifications. All three parts are ROHS3 compliant and carry active product status.

Similar Part Selection (ESR Variance)

The ECS-120-18-33-JGN-TR (ECS Inc.) and RH100-12.000-18-2030-EXT-TR (Raltron Electronics) are similar parts with 100 Ohms ESR, compared to the 120 Ohms ESR of the LFXTAL061070. These parts match all other critical specifications and are ROHS3 compliant with active product status. Selection of these parts requires confirmation that the 20 Ohms ESR reduction is compatible with circuit design parameters and oscillator startup characteristics.

Compliance and Availability

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the main part. All parts are active products with established supply chain availability. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can LFXTAL055295 be used as a direct replacement for LFXTAL061070?

A: Yes. The LFXTAL055295 is a parametric equivalent with identical frequency (12 MHz), tolerance (±20ppm), load capacitance (18pF), ESR (120 Ohms), operating temperature range (-40°C to 85°C), and package specifications (4-SMD, No Lead, 3.20mm x 2.50mm). No circuit modifications are required.

Q: What is the difference between the 120 Ohms and 100 Ohms ESR parts?

A: ESR (Equivalent Series Resistance) affects oscillator startup time and power consumption. The ECS-120-18-33-JGN-TR and RH100-12.000-18-2030-EXT-TR feature 100 Ohms ESR, compared to 120 Ohms in the LFXTAL061070. The 20 Ohms reduction may improve startup characteristics in some circuits but requires verification against specific circuit design parameters.

Q: Are there packaging differences between substitute parts?

A: The LFXTAL061070, LFXTAL055295, and RH100-12.000-18-2030-EXT-TR are supplied in Tape & Reel (TR) packaging. The ECS-120-18-33-JGN-TR is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both packaging formats are compatible with standard surface mount assembly equipment. Physical dimensions and electrical specifications remain identical.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All substitute parts listed (LFXTAL055295, ECS-120-18-33-JGN-TR, RH100-12.000-18-2030-EXT-TR, and 830055295) are ROHS3 compliant, matching the compliance status of the LFXTAL061070.

Q: Which substitute part has the highest inventory availability?

A: The ECS-120-18-33-JGN-TR (ECS Inc.) has 27,859 pieces in stock. The LFXTAL055295 (IQD) has 2,685 pieces, the 830055295 (Würth Elektronik) has 5,646 pieces, and the RH100-12.000-18-2030-EXT-TR (Raltron) has 8,993 pieces available.

Q: Can I use 830055295 as a substitute for LFXTAL061070?

A: Yes. The 830055295 (Würth Elektronik) is a parametric equivalent with identical specifications including 12 MHz frequency, ±20ppm tolerance, 18pF load capacitance, 120 Ohms ESR, and 4-SMD No Lead package. No circuit modifications are required.

Q: What are the key parameters that must match for substitution?

A: The critical parameters for substitution are frequency (12 MHz), frequency tolerance (±20ppm), load capacitance (18pF), operating mode (Fundamental), package type (4-SMD, No Lead), physical dimensions (3.20mm x 2.50mm), and operating temperature range (-40°C to 85°C). ESR can vary between 100 and 120 Ohms depending on circuit design requirements.

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