ORNA20-1T1 Equivalent & Substitute Parts

Part Overview

The ORNA20-1T1 is a 4-resistor network array manufactured by Vishay Dale Thin Film, designed for voltage divider applications requiring matched temperature coefficient performance. This isolated resistor network contains 1k and 20k ohm elements with ±0.1% tolerance and ±25ppm/°C temperature coefficient. The component is currently active in production and available in 8-SOIC surface mount packaging. Substitute parts are identified to address inventory availability, compliance requirements, or packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

ORNA20-1T1

Vishay Dale Thin FilmIn Stock: 1116ORNA20-1T1 Datasheet

Current PartRFQ

ORNTA20-1T1

Vishay Dale Thin FilmIn Stock: 1974ORNTA20-1T1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ORNA20-1T1 is determined by strict equivalence across the following critical parameters:

• Resistance values: 1k and 20k ohm configuration
• Tolerance specification: ±0.1%
• Circuit topology: Isolated 4-resistor network
• Power rating: 100mW per element
• Temperature coefficient: ±25ppm/°C
• Package type: 8-SOIC with identical physical dimensions (0.194" L x 0.157" W, 3.90mm width)
• Pin count and configuration: 8-pin SOIC
• Mounting technology: Surface mount

The identified substitute maintains all electrical specifications and mechanical compatibility. Differences in RoHS compliance status and inventory availability are noted but do not affect functional interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The ORNTA20-1T1 is a direct functional equivalent to the ORNA20-1T1 with identical electrical performance and mechanical compatibility. Both components are active products from the same manufacturer and series. The primary distinction is RoHS compliance status: ORNTA20-1T1 meets ROHS3 requirements while ORNA20-1T1 is non-compliant. Selection between these parts should be based on regulatory requirements applicable to the end application. For applications requiring RoHS3 compliance, ORNTA20-1T1 is the appropriate choice. Both parts carry REACH Unaffected status and identical moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can ORNTA20-1T1 replace ORNA20-1T1 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including resistance values, tolerance, temperature coefficient, power rating, and 8-SOIC package dimensions. Direct substitution is possible without circuit modification.

Q: What is the difference between these two part numbers?

A: The primary difference is RoHS compliance certification. ORNTA20-1T1 is ROHS3 compliant while ORNA20-1T1 is non-compliant. All electrical specifications and physical dimensions are identical.

Q: Are the pin configurations identical?

A: Yes. Both parts use 8-pin SOIC packaging with identical pin assignments and isolated circuit topology. PCB footprints are interchangeable.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications subject to RoHS3 regulations, ORNTA20-1T1 is required. For applications without RoHS compliance requirements, either part is acceptable based on availability and cost considerations.

Q: Are there any thermal or performance differences?

A: No. Both parts have identical temperature coefficient (±25ppm/°C), operating temperature range (-55°C to 125°C), and power dissipation specifications (100mW per element).