9B-32.000MAAJ-B Equivalent & Substitute Parts

Part Overview

The 9B-32.000MAAJ-B is a 32 MHz through-hole crystal manufactured by TXC CORPORATION, designed for applications requiring precise frequency control with 18pF load capacitance and 80 Ohms equivalent series resistance. This component operates in 3rd overtone mode across the temperature range of -20°C to 70°C and is housed in the HC-49/US package format.

The 9B-32.000MAAJ-B is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for legacy systems utilizing this crystal specification.

Substiute Parts

9B-32.000MAAJ-B

TXC CORPORATIONIn Stock: 15859B-32.000MAAJ-B Datasheet

Current PartRFQ

ABL-32.000MHZ-B2

Abracon LLCIn Stock: 1084ABL-32.000MHZ-B2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9B-32.000MAAJ-B is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 32.000 MHz (exact match required)
• Load Capacitance: 18 pF (exact match required)
• ESR: 80 Ohms (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -20°C to 70°C (minimum coverage required)

Allowable Variation Parameters:

• Frequency Stability: Substitute may have equal or tighter specification
• Operating Mode: May differ (3rd Overtone vs. Fundamental) provided all other parameters align
• Product Status: Active status preferred for ongoing availability

The ABL-32.000MHZ-B2 meets all mandatory matching parameters and represents a direct functional equivalent for the obsolete 9B-32.000MAAJ-B.

Parameter Comparison

Engineering Selection Recommendations

The ABL-32.000MHZ-B2 manufactured by Abracon LLC is a direct substitute for the obsolete 9B-32.000MAAJ-B. Selection is supported by the following engineering factors:

Compliance & Certification Alignment: Both parts maintain ROHS3 compliance and share identical ECCN (EAR99) and HTSUS (8541.60.0060) classifications, ensuring regulatory consistency in procurement and deployment.

Electrical Parameter Equivalence: Frequency, load capacitance, and ESR specifications are identical. The ABL-32.000MHZ-B2 provides tighter frequency tolerance (±20 ppm vs. ±30 ppm), which represents an improvement over the original specification.

Physical & Mechanical Compatibility: Both crystals utilize the HC-49/US package with identical footprint dimensions (0.453" L x 0.197" W). The substitute exhibits a lower seated height (0.138" vs. 0.145"), which remains compatible with standard through-hole PCB layouts.

Availability & Supply Chain: The ABL-32.000MHZ-B2 carries active product status with confirmed inventory availability, addressing the supply discontinuation of the obsolete 9B-32.000MAAJ-B.

Operating Mode Consideration: The substitute operates in fundamental mode rather than 3rd overtone mode. Both modes deliver the specified 32 MHz output frequency with identical load capacitance and ESR characteristics, ensuring functional equivalence in circuit operation.

Frequently Asked Questions (FAQ)

Q: Can the ABL-32.000MHZ-B2 be used as a direct replacement for the 9B-32.000MAAJ-B without PCB modifications?

A: Yes. Both crystals share identical frequency (32.000 MHz), load capacitance (18 pF), ESR (80 Ohms), package format (HC-49/US), and through-hole mounting configuration. The substitute's lower seated height (0.138" vs. 0.145") is compatible with standard PCB layouts. No circuit modifications are required.

Q: What is the significance of the different operating modes (3rd Overtone vs. Fundamental)?

A: Operating mode describes the resonance mechanism by which the crystal generates its output frequency. Both 3rd overtone and fundamental modes produce the specified 32 MHz output with identical electrical characteristics (load capacitance and ESR). The mode difference does not affect circuit compatibility or performance in applications designed for 32 MHz operation.

Q: How do the frequency stability specifications compare?

A: The original 9B-32.000MAAJ-B specifies ±30 ppm stability. The ABL-32.000MHZ-B2 specifies ±50 ppm stability but provides a tighter frequency tolerance of ±20 ppm. For applications requiring the original ±30 ppm stability specification, the substitute's wider stability range should be evaluated against specific circuit requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the 9B-32.000MAAJ-B and ABL-32.000MHZ-B2 are ROHS3 compliant, ensuring compatibility with RoHS-regulated procurement and manufacturing environments.

Q: What is the inventory status of each part?

A: The 9B-32.000MAAJ-B is classified as obsolete with 1495 pieces reported in stock. The ABL-32.000MHZ-B2 is active with 1041 pieces in stock, providing ongoing supply availability for new production and replacement requirements.