RACF164DFT499R Equivalent & Substitute Parts

Part Overview

The RACF164DFT499R is a 499 Ohm isolated 4-resistor network array manufactured by Stackpole Electronics Inc in 1206 (3216 Metric) surface mount package. This component is classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. The part delivers 62.5mW power per element with ±1% tolerance and ±200ppm/°C temperature coefficient, qualified to AEC-Q200 automotive standards.

Substiute Parts

RACF164DFT499R

Stackpole Electronics IncIn Stock: 708RACF164DFT499R Datasheet

Current PartRFQ

RAVF164DFT470R

Stackpole Electronics IncIn Stock: 1156RAVF164DFT470R Datasheet

MFR RecommendedRFQ

TC164-FR-07499RL

YAGEOIn Stock: 845TC164-FR-07499RL Datasheet

DirectRFQ

CAT16-4990F4LF

Bourns Inc.In Stock: 5381CAT16-4990F4LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RACF164DFT499R is determined by the following critical parameters: resistance value (499 Ohm), tolerance (±1%), circuit type (Isolated), number of resistors (4), package type (1206 surface mount), pin count (8), and automotive qualification (AEC-Q200).

The substitute parts are grouped into two categories:

Direct Equivalents (Identical Resistance): TC164-FR-07499RL (YAGEO) and CAT16-4990F4LF (Bourns Inc.) maintain the exact 499 Ohm resistance specification, identical tolerance, matching temperature coefficient, and equivalent thermal performance. These parts are pin-compatible and functionally interchangeable within the specified operating temperature range.

Functional Alternative (Resistance Variant): RAVF164DFT470R (Stackpole Electronics Inc.) differs in resistance value (470 Ohm instead of 499 Ohm) and power rating (100mW versus 62.5mW). This part is suitable only when circuit design permits the 470 Ohm specification and the higher power dissipation capability is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: TC164-FR-07499RL and CAT16-4990F4LF are recommended as primary substitutes. Both maintain identical electrical specifications (499 Ohm, ±1%, ±200ppm/°C) and automotive qualification (AEC-Q200). TC164-FR-07499RL is Active status with 773 units in stock. CAT16-4990F4LF is Active status with 5298 units in stock and offers superior availability. Both are ROHS3 compliant with MSL 1 rating.

Operating Temperature Consideration: CAT16-4990F4LF specifies -55°C ~ 125°C operating range, which is narrower than the RACF164DFT499R (-55°C ~ 155°C). Applications requiring operation above 125°C must use TC164-FR-07499RL or RAVF164DFT470R.

For Resistance Variant Applications: RAVF164DFT470R is suitable only when circuit design accepts 470 Ohm resistance. This part offers higher power dissipation (100mW versus 62.5mW) and maintains full automotive qualification and temperature range (-55°C ~ 155°C).

Package Geometry Note: RAVF164DFT470R uses Convex terminal geometry versus Concave for the main part and direct equivalents. Verify PCB pad design compatibility before selection.

Frequently Asked Questions (FAQ)

Q: Can TC164-FR-07499RL directly replace RACF164DFT499R? A: Yes. Both parts are 499 Ohm, ±1% tolerance, 62.5mW power per element, ±200ppm/°C temperature coefficient, 8-pin isolated configuration in 1206 package with AEC-Q200 qualification. Electrical and mechanical compatibility is confirmed.

Q: What is the difference between CAT16-4990F4LF and TC164-FR-07499RL? A: Both are direct electrical equivalents with identical resistance, tolerance, and power ratings. The primary difference is operating temperature range: CAT16-4990F4LF is rated -55°C ~ 125°C while TC164-FR-07499RL is rated -55°C ~ 155°C. Select based on application temperature requirements.

Q: Why is RAVF164DFT470R listed as a substitute if the resistance differs? A: RAVF164DFT470R is a functional alternative for applications where 470 Ohm resistance is acceptable. It maintains the same package, pin count, circuit topology, and automotive qualification. The higher power rating (100mW) provides additional thermal margin in some designs.

Q: Are all substitutes automotive qualified? A: Yes. RACF164DFT499R, TC164-FR-07499RL, CAT16-4990F4LF, and RAVF164DFT470R all carry AEC-Q200 qualification and are suitable for automotive applications.

Q: What does the package designation "1206 (3216 Metric), Concave, Long Side Terminals" mean? A: 1206 is the imperial designation (0.126" × 0.063"); 3216 Metric is the equivalent metric size (3.20mm × 1.60mm). Concave indicates the terminal profile shape, and Long Side Terminals specifies terminal placement on the longer edges of the package. RAVF164DFT470R uses Convex terminals instead; verify PCB compatibility.

Q: Is the RACF164DFT499R still available? A: RACF164DFT499R is classified as Obsolete. TC164-FR-07499RL (773 units) and CAT16-4990F4LF (5298 units) are Active status with current inventory. Use these for new designs and ongoing procurement.