ABLS-LR-7.3728MHZ-T Crystal Equivalent & Substitute Parts

Part Overview

The ABLS-LR-7.3728MHZ-T is a 7.3728 MHz fundamental mode crystal oscillator manufactured by Abracon LLC, designed for surface mount applications in the HC-49/US package. This Active product is specified for 18pF load capacitance with ±50ppm frequency stability across the 0°C to 70°C operating temperature range. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this crystal category.

Substiute Parts

ABLS-LR-7.3728MHZ-T
Abracon LLCIn Stock: 796ABLS-LR-7.3728MHZ-T Datasheet
ABLS-LR-7.3728MHZ-T
Current Part
ABLS-7.3728MHZ-T
Abracon LLCIn Stock: 1373ABLS-7.3728MHZ-T Datasheet
ABLS-7.3728MHZ-T
MFR Recommended

Key Parameters

Parameter Value
Frequency 7.3728 MHz
Frequency Stability ±50ppm
Load Capacitance 18pF
Operating Mode Fundamental
Package / Case HC-49/US
Mounting Type Surface Mount
Operating Temperature Range 0°C ~ 70°C
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the ABLS-LR-7.3728MHZ-T is determined by the following critical parameters:

  • Frequency: 7.3728 MHz (exact match required)
  • Frequency Stability: ±50ppm (exact match required)
  • Load Capacitance: 18pF (exact match required)
  • Operating Mode: Fundamental (exact match required)
  • Package / Case: HC-49/US (exact match required)
  • Mounting Type: Surface Mount (exact match required)
  • Operating Temperature Range: 0°C ~ 70°C (exact match required)
  • RoHS Status: ROHS3 Compliant (exact match required)

The ABLS-7.3728MHZ-T qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. The difference in ESR (Equivalent Series Resistance) and packaging format (Cut Tape versus Tape & Reel) does not affect functional equivalence for circuit operation.

Parameter Comparison

Parameter ABLS-LR-7.3728MHZ-T (Main) ABLS-7.3728MHZ-T (Substitute)
Manufacturer Abracon LLC Abracon LLC
Frequency 7.3728 MHz 7.3728 MHz
Frequency Stability ±50ppm ±50ppm
Frequency Tolerance ±50ppm ±50ppm
Load Capacitance 18pF 18pF
ESR (Equivalent Series Resistance) 20 Ohms 100 Ohms
Operating Mode Fundamental Fundamental
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C
Mounting Type Surface Mount Surface Mount
Package / Case HC-49/US HC-49/US
Size / Dimension 0.449" L x 0.185" W (11.40mm x 4.70mm) 0.449" L x 0.185" W (11.40mm x 4.70mm)
Height - Seated (Max) 0.165" (4.20mm) 0.165" (4.20mm)
Product Status Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Affected REACH Affected
Packaging Format Tape & Reel (TR) Cut Tape (CT)

Engineering Selection Recommendations

Both the ABLS-LR-7.3728MHZ-T and ABLS-7.3728MHZ-T are Active products from Abracon LLC with identical ROHS3 compliance and REACH status. Selection between these parts is based on packaging requirements and ESR tolerance. The main part (ABLS-LR-7.3728MHZ-T) is supplied in Tape & Reel format with 20 Ohms ESR, while the substitute (ABLS-7.3728MHZ-T) is supplied in Cut Tape format with 100 Ohms ESR. Both maintain the specified frequency, stability, load capacitance, and operating temperature range required for circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can ABLS-7.3728MHZ-T replace ABLS-LR-7.3728MHZ-T in my circuit?

A: Yes. Both parts maintain identical frequency (7.3728 MHz), frequency stability (±50ppm), load capacitance (18pF), operating mode (Fundamental), package (HC-49/US), and operating temperature range (0°C ~ 70°C). The difference in ESR and packaging format does not affect functional equivalence.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on a reel, suitable for automated assembly. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for manual or small-batch assembly. Both formats contain the same component.

Q: Does the ESR difference between 20 Ohms and 100 Ohms affect circuit operation?

A: ESR is a secondary parameter that affects oscillator startup characteristics and power consumption. Both values fall within acceptable ranges for HC-49/US crystal oscillators. Circuit compatibility is maintained when the primary parameters (frequency, stability, load capacitance, operating temperature) are matched.

Q: Are both parts RoHS compliant?

A: Yes. Both ABLS-LR-7.3728MHZ-T and ABLS-7.3728MHZ-T are ROHS3 Compliant and REACH Affected.

Q: Which part should I select for high-volume production?

A: ABLS-LR-7.3728MHZ-T in Tape & Reel format is optimized for automated assembly in high-volume production. ABLS-7.3728MHZ-T in Cut Tape format is suitable for lower-volume or manual assembly applications.

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