CAR0805-1MB1 Equivalent & Substitute Parts

Part Overview

The CAR0805-1MB1 is a 1 MOhm ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.1W (1/10W) power dissipation. Manufactured by Riedon, this component is actively produced and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are necessary to address supply availability, lead time requirements, or specific application needs such as automotive qualification or enhanced power ratings.

Substiute Parts

CAR0805-1MB1

RiedonIn Stock: 1057CAR0805-1MB1 Datasheet

Current PartRFQ

CPF0805B1M0E1

TE Connectivity Passive ProductIn Stock: 78654CPF0805B1M0E1 Datasheet

DirectRFQ

RNCF0805BTE1M00

Stackpole Electronics IncIn Stock: 6228RNCF0805BTE1M00 Datasheet

DirectRFQ

AT0805BRD071ML

YAGEOIn Stock: 10941AT0805BRD071ML Datasheet

UpgradeRFQ

CRT0805-BY-1004ELF

Bourns Inc.In Stock: 33410CRT0805-BY-1004ELF Datasheet

UpgradeRFQ

MCU08050D1004BP100

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1988MCU08050D1004BP100 Datasheet

UpgradeRFQ

RG2012P-105-B-T5

SusumuIn Stock: 311425RG2012P-105-B-T5 Datasheet

UpgradeRFQ

RP73D2A1M0BTDF

TE Connectivity Passive ProductIn Stock: 2440RP73D2A1M0BTDF Datasheet

UpgradeRFQ

RP73F2A1M0BTDF

TE Connectivity Passive ProductIn Stock: 1802RP73F2A1M0BTDF Datasheet

UpgradeRFQ

RT0805BRD071ML

YAGEOIn Stock: 5779RT0805BRD071ML Datasheet

UpgradeRFQ

TNPW08051M00BEEA

Vishay DaleIn Stock: 70470TNPW08051M00BEEA Datasheet

UpgradeRFQ

TNPW08051M00BEEN

Vishay DaleIn Stock: 13753TNPW08051M00BEEN Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

• Resistance value: 1 MOhm (exact match required)
• Tolerance: ±0.1% (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±25ppm/°C or tighter (±15ppm/°C acceptable)
• Operating Temperature Range: Minimum -55°C ~ 155°C (extended ranges acceptable)
• RoHS Status: ROHS3 Compliant (required)
• Moisture Sensitivity Level: MSL 1 (required)

Substitute parts are categorized as Direct or Upgrade based on power rating. Direct substitutes maintain 0.1W (1/10W) rating. Upgrade substitutes provide higher power ratings (0.125W or 0.26W) while maintaining all other electrical and mechanical specifications, offering enhanced thermal performance in the same footprint.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Equivalent Power Rating): CPF0805B1M0E1 from TE Connectivity maintains identical electrical and mechanical specifications to the CAR0805-1MB1, including 0.1W power rating and ±25ppm/°C temperature coefficient. Both are ROHS3 compliant with MSL 1 rating and -55°C to 155°C operating range. This part is suitable for direct replacement without design modification.

Upgrade Substitutes (Enhanced Power Rating): All upgrade substitutes provide 0.125W or higher power dissipation while maintaining 1 MOhm ±0.1% resistance, 0805 package, and thin film composition. These parts are electrically and mechanically compatible with the original specification.

RNCF0805BTE1M00, AT0805BRD071ML, RG2012P-105-B-T5, and TNPW08051M00BEEA carry automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability. AT0805BRD071ML and TNPW08051M00BEEA include anti-sulfur and moisture-resistant features with extended operating temperature to 175°C.

RP73D2A1M0BTDF offers tighter temperature coefficient (±15ppm/°C) compared to the standard ±25ppm/°C, providing superior stability across temperature variations.

MCU08050D1004BP100 operates to 125°C maximum, which is 30°C below the original specification. Selection requires verification that application maximum temperature does not exceed 125°C.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original CAR0805-1MB1? A: Yes. Upgrade substitutes with 0.125W or 0.26W ratings are electrically and mechanically compatible. Higher power ratings provide enhanced thermal performance in identical 0805 footprints. No design modification is required.

Q: What is the difference between Direct and Upgrade substitutes? A: Direct substitutes (CPF0805B1M0E1) match the original 0.1W power rating exactly. Upgrade substitutes provide higher power ratings (0.125W or 0.26W) while maintaining all other specifications. Selection depends on thermal requirements and available board space.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the original CAR0805-1MB1 compliance status.

Q: Which substitute offers the best temperature stability? A: RP73D2A1M0BTDF provides ±15ppm/°C temperature coefficient, tighter than the standard ±25ppm/°C. This offers superior resistance stability across the -55°C to 155°C operating range.

Q: Can I use MCU08050D1004BP100 if my application operates above 125°C? A: No. MCU08050D1004BP100 is rated to 125°C maximum, which is 30°C below the original CAR0805-1MB1 specification of 155°C. Use only if application maximum temperature does not exceed 125°C.

Q: What is the significance of AEC-Q200 qualification? A: AEC-Q200 is automotive-grade qualification indicating the part meets automotive reliability and performance standards. Parts with this rating (RNCF0805BTE1M00, AT0805BRD071ML, RG2012P-105-B-T5, TNPW08051M00BEEA) are suitable for automotive applications requiring enhanced reliability.

Q: Does package height variation affect PCB assembly? A: Package heights range from 0.50mm to 0.65mm. Verify that your PCB assembly process and reflow profile accommodate the selected part's maximum height. Consult assembly documentation if height-critical applications are involved.