OSOPA1002AT1 Equivalent & Substitute Parts

Part Overview

The OSOPA1002AT1 is a 10-resistor isolated network array manufactured by Vishay Dale Thin Film in a 20-SSOP surface mount package. This component features 10kΩ resistors with ±0.1% tolerance and 100mW power per element, designed for precision applications requiring matched resistor networks. The part is currently active in production. Substitute parts are identified to address inventory availability, compliance requirements, or supply chain optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

OSOPA1002AT1

Vishay Dale Thin FilmIn Stock: 751OSOPA1002AT1 Datasheet

Current PartRFQ

OSOPTA1002AT1

Vishay Dale Thin FilmIn Stock: 4078OSOPTA1002AT1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OSOPA1002AT1 is determined by the following critical parameters:

• Resistance value: 10kΩ (exact match required)
• Tolerance: ±0.1% (exact match required)
• Number of resistors: 10 (exact match required)
• Power per element: 100mW (exact match required)
• Circuit type: Isolated (exact match required)
• Temperature coefficient: ±25ppm/°C (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Package: 20-SSOP (exact match required)
• Mounting type: Surface Mount (exact match required)

The OSOPTA1002AT1 qualifies as a direct substitute, meeting all electrical specifications and mechanical requirements. Variations in resistor matching ratio (±0.025% vs ±0.05%) and compliance certifications do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the OSOPA1002AT1 and OSOPTA1002AT1 are active production parts from Vishay Dale Thin Film with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements:

The OSOPTA1002AT1 is ROHS3 compliant and REACH unaffected, making it suitable for applications subject to environmental regulations. The OSOPA1002AT1 is RoHS non-compliant and may be appropriate for legacy systems or applications without regulatory compliance mandates.

The OSOPTA1002AT1 offers higher inventory availability (4063 pcs vs 705 pcs), which may influence supply chain decisions. The resistor matching ratio difference (±0.05% vs ±0.025%) is not a functional limitation for standard circuit applications.

Frequently Asked Questions (FAQ)

Q: Can OSOPTA1002AT1 replace OSOPA1002AT1 in all applications?

A: Yes. Both parts share identical electrical specifications (10kΩ ±0.1%, 100mW per element, ±25ppm/°C temperature coefficient) and mechanical dimensions (20-SSOP package). The primary difference is RoHS compliance status. Selection depends on regulatory requirements for your application.

Q: What is the significance of the resistor matching ratio difference?

A: The OSOPA1002AT1 specifies ±0.025% matching ratio while OSOPTA1002AT1 specifies ±0.05%. Both values indicate tight matching between individual resistors within the array. For most applications, this difference is not functionally significant. Applications requiring the tighter specification should use OSOPA1002AT1.

Q: Are the packages physically identical?

A: Yes. Both parts use the 20-SSOP package with identical dimensions: 0.344" L × 0.154" W (8.74mm × 3.91mm) and maximum seated height of 0.068" (1.73mm). PCB footprints and assembly processes are interchangeable.

Q: What is the impact of RoHS compliance on substitution?

A: OSOPTA1002AT1 is ROHS3 compliant while OSOPA1002AT1 is not. If your application or market requires RoHS compliance, OSOPTA1002AT1 is the appropriate choice. Both parts have MSL rating of 1 (Unlimited) and identical moisture handling requirements.

Q: Are there any temperature or operating condition differences?

A: No. Both parts operate identically across the -55°C to 125°C temperature range with ±25ppm/°C temperature coefficient and ±5ppm/°C resistor-ratio-drift.