ISM480F1-C4.1 Equivalent & Substitute Parts

Part Overview

The ISM480F1-C4.1 is a SiRFstarIV™ RF Receiver GPS module operating at 1575.42MHz with -162dBm sensitivity, designed for applications including fleet management, location services, navigation, and tracking systems. This module features a PCB surface mount design with low power consumption of 45mA during reception.

The ISM480F1-C4.1 is classified as obsolete. Locating equivalent or substitute components is necessary to maintain system compatibility, ensure continued supply chain availability, and support ongoing production or maintenance requirements for applications utilizing this GPS receiver module.

Substiute Parts

ISM480F1-C4.1

Inventek SystemsIn Stock: 1078ISM480F1-C4.1 Datasheet

Current PartRFQ

ISM480F1-C4.3

Inventek SystemsIn Stock: 773ISM480F1-C4.3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISM480F1-C4.1 is determined by the following critical parameters:

Core Functional Parameters:

• Frequency: 1575.42MHz (GPS L1 band)
• Sensitivity: -162dBm
• Modulation/Protocol: GPS
• Series: SiRFstarIV™

Electrical Parameters:

• Current consumption during reception: 45mA
• Supply voltage range compatibility

Physical Parameters:

• Mounting type: Surface Mount
• Package classification: Module
• Form factor and footprint compatibility

Environmental Parameters:

• Operating temperature range
• Moisture sensitivity classification

The ISM480F1-C4.1 identifies ISM480F1-C4.3 as a substitute part within the same SiRFstarIV™ series. Both components share identical GPS receiver functionality, sensitivity specifications, and current consumption characteristics. Substitution is valid where the electrical supply voltage, data interface requirements, and operating environment parameters are compatible with system design specifications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ISM480F1-C4.1 is obsolete. The ISM480F1-C4.3 is the active production equivalent within the SiRFstarIV™ series and represents the current available substitute.

Compliance and Certification: The ISM480F1-C4.3 carries RoHS Compliance and REACH Unaffected certifications, meeting current regulatory requirements for electronic components in regulated markets.

Critical Compatibility Factors:

1. Supply Voltage: The ISM480F1-C4.3 requires 3.3V supply, whereas the ISM480F1-C4.1 operates on 1.71V ~ 1.89V. System power supply architecture must be evaluated and potentially modified to accommodate this difference.

2. Data Interface: The ISM480F1-C4.1 uses PCB surface mount interface, while ISM480F1-C4.3 implements UART interface. Integration with host system communication protocols must be verified.

3. Antenna Configuration: The ISM480F1-C4.1 features PCB surface mount antenna connector; ISM480F1-C4.3 integrates on-board chip antenna. PCB layout and antenna matching considerations differ between these configurations.

4. Operating Temperature Range: The ISM480F1-C4.1 supports -35°C minimum; ISM480F1-C4.3 supports -30°C minimum. Applications requiring operation below -30°C cannot use ISM480F1-C4.3 as a direct substitute.

Substitution of ISM480F1-C4.1 with ISM480F1-C4.3 is valid only when system design accommodates the identified electrical and interface differences.

Frequently Asked Questions (FAQ)

Q: Can ISM480F1-C4.3 directly replace ISM480F1-C4.1 in existing designs?

A: Direct replacement is not possible without design modifications. The ISM480F1-C4.3 requires 3.3V supply (versus 1.71V ~ 1.89V for ISM480F1-C4.1), implements UART data interface (versus PCB surface mount), and features on-board antenna (versus external PCB connector). These differences require circuit redesign and PCB layout changes.

Q: What is the frequency difference between these parts?

A: Both parts operate on the GPS L1 band. The ISM480F1-C4.1 specifies 1575.42MHz; the ISM480F1-C4.3 specifies 1.575GHz. These values are equivalent representations of the same frequency.

Q: Are both parts from the same manufacturer?

A: Yes, both ISM480F1-C4.1 and ISM480F1-C4.3 are manufactured by Inventek Systems and belong to the SiRFstarIV™ series.

Q: What is the minimum operating temperature for each part?

A: ISM480F1-C4.1 operates from -35°C to 85°C. ISM480F1-C4.3 operates from -30°C to 85°C. Applications requiring operation below -30°C must use ISM480F1-C4.1 or identify alternative components.

Q: Why is ISM480F1-C4.1 listed as obsolete?

A: ISM480F1-C4.1 is no longer in active production. ISM480F1-C4.3 represents the current production equivalent within the SiRFstarIV™ GPS receiver module family.

Q: What packaging is available for ISM480F1-C4.3?

A: ISM480F1-C4.3 is supplied in tray packaging. Packaging specifications for ISM480F1-C4.1 are not provided in available documentation.

Q: Are there compliance certifications for ISM480F1-C4.3?

A: ISM480F1-C4.3 is RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is the power consumption difference between these modules?

A: Both modules consume 45mA during GPS reception. Power consumption is identical between ISM480F1-C4.1 and ISM480F1-C4.3.