NX2016AB-38.4MHZ SW1 Equivalent & Substitute Parts

Part Overview

The NX2016AB-38.4MHZ SW1 is a 38.4 MHz fundamental mode crystal oscillator manufactured by NDK America, Inc., designed for surface mount applications in 4-SMD, No Lead packaging. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The crystal operates at ±10ppm frequency stability with 7pF load capacitance and 60 Ohms equivalent series resistance, suitable for communication and timing circuits requiring precise 38.4 MHz frequency reference.

Key Parameters

Parameter	Value
Frequency	38.4 MHz
Frequency Stability	±10ppm
Load Capacitance	7pF
ESR (Equivalent Series Resistance)	60 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20°C to 70°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.079" L x 0.063" W (2.00mm x 1.60mm)
Height - Seated (Max)	0.020" (0.50mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the NX2016AB-38.4MHZ SW1 is determined by the following critical parameters:

Primary Matching Criteria:

Frequency: 38.4 MHz (exact match required)
Frequency Stability: ±10ppm (exact match required)
Operating Mode: Fundamental (exact match required)
Operating Temperature Range: -20°C to 70°C (exact match required)
Package / Case: 4-SMD, No Lead (exact match required)

Secondary Compatibility Parameters:

Load Capacitance: 6pF to 9pF (acceptable range for circuit design adjustment)
ESR: 40 to 80 Ohms (acceptable range for circuit performance)
Physical Dimensions: Variations permitted within SMD footprint compatibility (1.60mm x 1.20mm to 2.00mm x 1.60mm)
Height: Up to 0.50mm maximum seated height

Substitute parts must maintain identical frequency, stability, operating mode, temperature range, and package type. Load capacitance and ESR variations are acceptable within the specified ranges, as circuit design can accommodate these differences through load network adjustment.

Parameter Comparison

Part Number	Manufacturer	Frequency	Frequency Stability	Load Capacitance	ESR (Ohms)	Operating Temperature	Package	Size (mm)	Height (mm)	Product Status
NX2016AB-38.4MHZ SW1	NDK America, Inc.	38.4 MHz	±10ppm	7pF	60	-20°C to 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	Obsolete
416F38411CKR	CTS-Frequency Controls	38.4 MHz	±10ppm	8pF	60	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.45	Active
416F38411CTR	CTS-Frequency Controls	38.4 MHz	±10ppm	6pF	60	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.45	Active
8Q-38.400MEEC-T	FTS	38.4 MHz	±10ppm	9pF	80	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	Active
8Q-38.400MEEV-T	FTS	38.4 MHz	±10ppm	8pF	80	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	Active
ABM11W-38.4000MHZ-6-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	6pF	40	-20°C to 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	Active
ABM11W-38.4000MHZ-7-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	7pF	40	-20°C to 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	Active
ABM11W-38.4000MHZ-8-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	8pF	40	-20°C to 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	Active
ABM12W-38.4000MHZ-6-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	6pF	50	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	Active
ABM12W-38.4000MHZ-7-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	7pF	50	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	Active
ABM12W-38.4000MHZ-8-B1U-T3	Abracon LLC	38.4 MHz	±10ppm	8pF	50	-20°C to 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	Active

Engineering Selection Recommendations

All listed substitute parts are active production components from established manufacturers, providing long-term availability and supply chain stability compared to the obsolete NX2016AB-38.4MHZ SW1.

Abracon LLC ABM11W Series (ABM11W-38.4000MHZ-6-B1U-T3, ABM11W-38.4000MHZ-7-B1U-T3, ABM11W-38.4000MHZ-8-B1U-T3): These parts maintain identical physical dimensions (2.00mm x 1.60mm) and height (0.50mm) to the original part, enabling direct footprint compatibility. ESR of 40 Ohms provides superior performance margin. ROHS3 compliant. The 7pF load capacitance variant (ABM11W-38.4000MHZ-7-B1U-T3) offers exact load capacitance matching with the original part.

Abracon LLC ABM12W Series (ABM12W-38.4000MHZ-6-B1U-T3, ABM12W-38.4000MHZ-7-B1U-T3, ABM12W-38.4000MHZ-8-B1U-T3): These parts feature reduced physical dimensions (1.60mm x 1.20mm) and lower height (0.40mm), suitable for space-constrained applications. ESR of 50 Ohms provides acceptable performance. ROHS3 compliant. Requires PCB footprint adjustment from the original design.

CTS-Frequency Controls 416 Series (416F38411CKR, 416F38411CTR): Compact 1.60mm x 1.20mm footprint with 0.45mm height. ESR of 60 Ohms matches the original part specification. ROHS3 compliant. Available in 6pF and 8pF load capacitance options.

FTS 8Q Series (8Q-38.400MEEC-T, 8Q-38.400MEEV-T): Compact 1.60mm x 1.20mm footprint with 0.40mm height. ESR of 80 Ohms represents the upper acceptable range. RoHS compliant. Available in 8pF and 9pF load capacitance options.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different load capacitance than the original 7pF?

A: Yes. Load capacitance values between 6pF and 9pF are acceptable substitutes. The circuit load network can be adjusted to accommodate these variations. However, the ABM11W-38.4000MHZ-7-B1U-T3 provides exact 7pF matching if no circuit modification is desired.

Q: What is the difference between ESR values of 40, 50, 60, and 80 Ohms?

A: ESR (Equivalent Series Resistance) affects crystal oscillator startup time and power consumption. Lower ESR (40 Ohms) provides faster startup and lower power draw. Higher ESR (80 Ohms) requires more drive current but remains within acceptable operating parameters for this frequency and load capacitance range. All values listed are acceptable for the 38.4 MHz application.

Q: Are there physical footprint compatibility issues between substitute parts?

A: The original NX2016AB uses a 2.00mm x 1.60mm footprint. Abracon ABM11W series maintains this footprint. CTS 416 series, FTS 8Q series, and Abracon ABM12W series use a smaller 1.60mm x 1.20mm footprint, requiring PCB layout modification. Height variations (0.40mm to 0.50mm) are within standard SMD assembly tolerances.

Q: Which substitute part provides the closest electrical match to the original?

A: The ABM11W-38.4000MHZ-7-B1U-T3 provides exact load capacitance (7pF) and identical physical dimensions (2.00mm x 1.60mm, 0.50mm height) to the original part, with superior ESR performance (40 Ohms vs. 60 Ohms).

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant or RoHS compliant, meeting current environmental and regulatory requirements.

Q: What is the inventory status of substitute parts?

A: All substitute parts are active production components with substantial inventory availability, ranging from 809 to 67,864 pieces in stock, ensuring reliable supply for production requirements.

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