KTR10EZPJ3R9 Equivalent & Substitute Parts

Part Overview

The KTR10EZPJ3R9 is a 3.9 Ohm ±5% thick film chip resistor manufactured by Rohm Semiconductor in 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and meets AEC-Q200 automotive qualification standards with high voltage capability. The part is currently active in production with 899 units in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific feature requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

KTR10EZPJ3R9

Rohm SemiconductorIn Stock: 932KTR10EZPJ3R9 Datasheet

Current PartRFQ

CRCW08053R90JNEA

Vishay DaleIn Stock: 31927CRCW08053R90JNEA Datasheet

UpgradeRFQ

ERJ-6RQF3R9V

Panasonic Electronic ComponentsIn Stock: 20718ERJ-6RQF3R9V Datasheet

UpgradeRFQ

RC0805FR-073R9L

YAGEOIn Stock: 67928RC0805FR-073R9L Datasheet

UpgradeRFQ

RMCF0805FT3R90

Stackpole Electronics IncIn Stock: 21588RMCF0805FT3R90 Datasheet

UpgradeRFQ

RMCF0805JT3R90

Stackpole Electronics IncIn Stock: 18933RMCF0805JT3R90 Datasheet

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AC0805JR-073R9L

YAGEOIn Stock: 11568AC0805JR-073R9L Datasheet

SimilarRFQ

RC0805JR-073R9L

YAGEOIn Stock: 13460RC0805JR-073R9L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the KTR10EZPJ3R9:

Upgrade Parts — Direct functional replacements with identical or improved specifications:

• CRCW08053R90JNEA (Vishay Dale): Matches all electrical parameters with ±5% tolerance and AEC-Q200 rating. Seated height 0.020" (0.50mm) is lower than the main part.
• ERJ-6RQF3R9V (Panasonic): Tighter ±1% tolerance with current sense feature. Maintains AEC-Q200 qualification and identical operating temperature range.
• RC0805FR-073R9L (YAGEO): ±1% tolerance with moisture resistant feature. No AEC-Q200 rating but meets all electrical and thermal specifications.
• RMCF0805FT3R90 (Stackpole): ±1% tolerance with AEC-Q200 rating. Identical seated height and thermal characteristics.
• RMCF0805JT3R90 (Stackpole): Matches ±5% tolerance and AEC-Q200 rating with identical physical and electrical specifications.

Similar Parts — Compatible alternatives with matching core specifications:

• AC0805JR-073R9L (YAGEO): ±5% tolerance with AEC-Q200 and moisture resistant features. Seated height 0.024" (0.60mm).
• RC0805JR-073R9L (YAGEO): ±5% tolerance with moisture resistant feature. Seated height 0.024" (0.60mm). No AEC-Q200 rating.

Substitution is valid when resistance value, tolerance, power rating, package format, composition, temperature coefficient, and operating temperature range remain constant or improve. Seated height variations are acceptable within PCB assembly design constraints.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts should be based on the following criteria:

For AEC-Q200 Automotive Applications: CRCW08053R90JNEA, RMCF0805JT3R90, RMCF0805FT3R90, ERJ-6RQF3R9V, and AC0805JR-073R9L maintain full AEC-Q200 compliance. These parts are suitable for automotive and high-reliability applications requiring qualification documentation.

For Tolerance-Critical Circuits: ERJ-6RQF3R9V, RC0805FR-073R9L, RMCF0805FT3R90 offer ±1% tolerance, providing improved accuracy over the ±5% specification of the main part. These are appropriate for precision analog circuits and current sensing applications.

For Supply Chain Continuity: CRCW08053R90JNEA (31904 units), RC0805FR-073R9L (67832 units), and RMCF0805FT3R90 (21562 units) offer significantly higher inventory availability compared to the main part (899 units).

For Moisture-Resistant Applications: RC0805FR-073R9L, AC0805JR-073R9L, and RC0805JR-073R9L include moisture resistant features suitable for humid or corrosive environments.

For Identical Physical Footprint: RMCF0805JT3R90 and KTR10EZPJ3R9 share identical seated height (0.026"), minimizing PCB assembly process adjustments.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature range (-55°C to 155°C).

Frequently Asked Questions (FAQ)

Q: Can I substitute the KTR10EZPJ3R9 with a ±1% tolerance part in a ±5% tolerance circuit? A: Yes. A ±1% tolerance part (ERJ-6RQF3R9V, RC0805FR-073R9L, RMCF0805FT3R90) provides tighter tolerance than required and is electrically compatible. The circuit will function within specification.

Q: Are all substitute parts AEC-Q200 qualified? A: No. RC0805FR-073R9L and RC0805JR-073R9L do not carry AEC-Q200 rating. For automotive applications requiring AEC-Q200 compliance, use CRCW08053R90JNEA, RMCF0805JT3R90, RMCF0805FT3R90, ERJ-6RQF3R9V, or AC0805JR-073R9L.

Q: Does seated height variation affect PCB assembly? A: Seated height ranges from 0.020" to 0.028" across all parts. Variations within this range are typically accommodated by standard pick-and-place equipment and reflow profiles. Verify with your assembly partner if height-critical applications exist.

Q: What is the difference between RMCF0805JT3R90 and RMCF0805FT3R90? A: Both are Stackpole RMCF series 3.9 Ohm 0805 resistors with AEC-Q200 rating. RMCF0805JT3R90 has ±5% tolerance matching the main part. RMCF0805FT3R90 has ±1% tolerance for improved accuracy.

Q: Can I use RC0805JR-073R9L in place of KTR10EZPJ3R9 in automotive applications? A: RC0805JR-073R9L is not AEC-Q200 qualified. For automotive applications requiring AEC-Q200 compliance, select from qualified alternatives: CRCW08053R90JNEA, RMCF0805JT3R90, RMCF0805FT3R90, ERJ-6RQF3R9V, or AC0805JR-073R9L.

Q: Are all parts ROHS3 compliant? A: Yes. All listed parts including the main part KTR10EZPJ3R9 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute offers the best inventory availability? A: RC0805FR-073R9L has the highest inventory at 67832 units, followed by CRCW08053R90JNEA at 31904 units.