NBC12430FAR2 PLL Clock Generator Equivalent & Substitute Parts

Part Overview

The NBC12430FAR2 is a PLL Clock Generator IC manufactured by onsemi, designed for 800MHz clock generation applications in a 32-LQFP surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production requirements. The part operates across a supply voltage range of 3.135V to 5.25V with crystal input and PECL output configuration.

Key Parameters

Parameter	Value
Manufacturer	onsemi
Part Number	NBC12430FAR2
Product Category	Clock/Timing - PLL Clock Generator
Package Type	32-LQFP (7x7)
Mounting Type	Surface Mount
Frequency - Maximum	800MHz
Input Type	Crystal
Output Type	PECL
Supply Voltage Range	3.135V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Number of Circuits	1
Input:Output Ratio	1:1
Differential Input/Output	No/Yes
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	2 (1 Year)

Substitute Part Grouping Explanation

Substitution for the NBC12430FAR2 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Identical package type (32-LQFP, 7x7mm)
Identical mounting type (Surface Mount)
Identical input type (Crystal)
Identical output type (PECL)
Identical number of circuits (1)
Identical input:output ratio (1:1)
Identical differential input/output configuration (No/Yes)
Compatible supply voltage range (3.135V ~ 5.25V minimum)
Compatible operating temperature range (0°C ~ 70°C minimum)

Substitution Categories:

Direct Manufacturer Equivalent (NBC12430FAR2G): Identical specifications with active product status and improved RoHS3 compliance. Differs only in packaging format (Cut Tape vs. unspecified) and product status.
Parametric Equivalent (NBC12429FAR2G): Meets all mechanical and electrical interface requirements with one critical difference: maximum frequency is 400MHz versus 800MHz. This part is suitable only for applications requiring frequencies up to 400MHz.

Parameter Comparison

Parameter	NBC12430FAR2 (Main)	NBC12430FAR2G (Direct Equivalent)	NBC12429FAR2G (Parametric Equivalent)
Manufacturer	onsemi	onsemi	onsemi
Product Category	Clock/Timing	Clock/Timing	Clock/Timing
Package / Case	32-LQFP (7x7)	32-LQFP (7x7)	32-LQFP (7x7)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Type	PLL Clock Generator	PLL Clock Generator	PLL Clock Generator
Input	Crystal	Crystal	Crystal
Output	PECL	PECL	PECL
Number of Circuits	1	1	1
Ratio - Input:Output	1:1	1:1	1:1
Differential - Input:Output	No/Yes	No/Yes	No/Yes
Frequency - Max	800MHz	800MHz	400MHz
Voltage - Supply	3.135V ~ 5.25V	3.135V ~ 5.25V	3.135V ~ 5.25V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	2 (1 Year)	2 (1 Year)	2 (1 Year)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

NBC12430FAR2G (Direct Equivalent): This part is the primary substitute for the obsolete NBC12430FAR2. It maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. Selection of this part eliminates obsolescence risk and aligns with current regulatory requirements. Packaging is provided in Cut Tape format.

NBC12429FAR2G (Parametric Equivalent): This part is suitable only for applications where the maximum clock frequency requirement does not exceed 400MHz. While it shares identical package, mounting, input/output configuration, and supply voltage specifications, the reduced frequency capability restricts its use to lower-speed clock generation applications. This part is available in Tape & Reel packaging and offers ROHS3 compliance and active product status.

Compliance Considerations: Both substitute parts offer ROHS3 compliance and active product status, addressing the regulatory and supply chain limitations of the obsolete NBC12430FAR2. Both maintain identical moisture sensitivity levels and REACH compliance status.

Frequently Asked Questions (FAQ)

Q: Can NBC12430FAR2G be used as a direct replacement for NBC12430FAR2? A: Yes. NBC12430FAR2G is a direct equivalent with identical electrical and mechanical specifications. The primary differences are active product status and improved RoHS compliance. Packaging format differs (Cut Tape vs. unspecified original packaging).

Q: What is the key difference between NBC12430FAR2G and NBC12429FAR2G? A: The maximum frequency specification differs. NBC12430FAR2G supports 800MHz operation, while NBC12429FAR2G supports 400MHz maximum. Both share identical package type, mounting method, input/output configuration, and supply voltage range. Selection depends on application frequency requirements.

Q: Can NBC12429FAR2G replace NBC12430FAR2 in all applications? A: No. NBC12429FAR2G is suitable only for applications requiring clock frequencies up to 400MHz. Applications requiring 800MHz operation must use NBC12430FAR2G.

Q: What packaging formats are available for these substitutes? A: NBC12430FAR2G is supplied in Cut Tape (CT) format. NBC12429FAR2G is supplied in Tape & Reel (TR) format. Both use identical 32-LQFP (7x7mm) package type.

Q: Are both substitute parts RoHS compliant? A: Yes. Both NBC12430FAR2G and NBC12429FAR2G are ROHS3 compliant, addressing the RoHS non-compliance status of the obsolete NBC12430FAR2.

Q: What is the moisture sensitivity level for these parts? A: All three parts (NBC12430FAR2, NBC12430FAR2G, and NBC12429FAR2G) have Moisture Sensitivity Level 2 with a 1-year floor life requirement.

Q: Are there any supply voltage or temperature range differences? A: No. All three parts operate across identical supply voltage range (3.135V ~ 5.25V) and temperature range (0°C ~ 70°C).

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