CRA06S08321K5FTA Equivalent & Substitute Parts

Part Overview

The CRA06S08321K5FTA is a 4-resistor isolated network array manufactured by Vishay Dale, featuring 21.5kΩ ±1% resistors rated at 62.5mW per element in a 1206 (3216 Metric) surface mount package. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The part operates across a temperature range of -55°C to 155°C and complies with ROHS3 standards.

Substiute Parts

CRA06S08321K5FTA

Vishay DaleIn Stock: 988CRA06S08321K5FTA Datasheet

Current PartRFQ

AF164-FR-0721K5L

YAGEOIn Stock: 894AF164-FR-0721K5L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CRA06S08321K5FTA is determined by strict alignment of the following critical parameters:

• Resistance value: 21.5kΩ (exact match required)
• Tolerance: ±1% (exact match required)
• Number of resistors: 4 elements
• Power rating per element: 62.5mW (exact match required)
• Circuit configuration: Isolated topology
• Package: 1206 (3216 Metric) with convex, long side terminals
• Pin count: 8 pins
• Operating temperature range: -55°C to 155°C minimum
• Surface mount compatibility

The AF164-FR-0721K5L from YAGEO meets all mandatory substitution criteria. Variations in temperature coefficient (±200ppm/°C vs. ±100ppm/°C) and minor dimensional tolerances do not preclude functional equivalence within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The AF164-FR-0721K5L qualifies as a direct functional substitute for the CRA06S08321K5FTA based on electrical and mechanical parameter alignment. Both components are ROHS3 compliant with MSL 1 ratings, ensuring compatibility with standard manufacturing and storage protocols.

The primary distinction is product status: the CRA06S08321K5FTA is obsolete, while the AF164-FR-0721K5L is active. This status difference, combined with YAGEO's documented availability (840 pcs in stock), establishes the AF164-FR-0721K5L as the appropriate selection for new designs and ongoing production requirements.

The temperature coefficient difference (±200ppm/°C vs. ±100ppm/°C) represents a measurable but acceptable variance for applications within the specified operating range. Dimensional variations (width 1.50mm vs. 1.60mm, height 0.60mm vs. 0.70mm) fall within standard PCB layout tolerances for 1206 package footprints.

Frequently Asked Questions (FAQ)

Q: Can the AF164-FR-0721K5L directly replace the CRA06S08321K5FTA on existing PCBs?

A: Yes. Both components share identical electrical specifications (21.5kΩ ±1%, 62.5mW per element, 4-resistor isolated configuration) and package footprint (1206 with 8 pins). Dimensional variations are within standard manufacturing tolerances for this package class.

Q: What is the significance of the temperature coefficient difference?

A: The CRA06S08321K5FTA specifies ±100ppm/°C while the AF164-FR-0721K5L specifies ±200ppm/°C. This difference affects long-term stability in temperature-sensitive applications. For circuits operating within the -55°C to 155°C range, both coefficients remain within acceptable limits for standard resistor network applications.

Q: Are there packaging differences between these parts?

A: The CRA06S08321K5FTA is supplied in standard packaging, while the AF164-FR-0721K5L is supplied in Tape & Reel (TR) format. Both are surface mount compatible. Tape & Reel packaging is standard for high-volume production environments.

Q: Why is the CRA06S08321K5FTA listed as obsolete?

A: Obsolescence reflects manufacturer discontinuation. The AF164-FR-0721K5L, classified as active, represents the current production equivalent with identical functional specifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both carry EAR99 ECCN classification and 8533.21.0020 HTSUS code.