MCR18ERTJ913 Equivalent & Substitute Parts

Part Overview

The MCR18ERTJ913 is a 91 kOhms ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Rohm Semiconductor. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility. Substitute parts must match the core electrical specifications: 91 kOhms resistance, ±5% tolerance, 0.25W power rating, and 1206 package form factor.

Key Parameters

Parameter	Value
Resistance	91 kOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution is determined by strict equivalence across electrical and mechanical parameters. All substitute parts listed maintain the following core criteria:

Resistance value: 91 kOhms
Tolerance: ±5% (direct equivalents) or ±1% (upgrades with improved tolerance)
Power rating: 0.25W (direct equivalents) or 0.667W (upgrades with higher power capability)
Package: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

Direct equivalents maintain identical electrical specifications. Upgrade options provide enhanced performance through tighter tolerance (±1%) or higher power rating (0.667W) while preserving all other parameters. All parts are suitable for direct PCB replacement without circuit redesign.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Features	Product Status
MCR18ERTJ913	Rohm Semiconductor	91 kOhms	±5%	0.25	±200	Standard	Discontinued
CR1206-JW-913ELF	Bourns Inc.	91 kOhms	±5%	0.25	±200	Moisture Resistant	Active
CRCW120691K0JNEA	Vishay Dale	91 kOhms	±5%	0.25	±200	Automotive AEC-Q200	Active
ERJ-8GEYJ913V	Panasonic Electronic Components	91 kOhms	±5%	0.25	±200	Automotive AEC-Q200	Not For New Designs
RMCF1206JT91K0	Stackpole Electronics Inc	91 kOhms	±5%	0.25	±200	Automotive AEC-Q200	Active
ERJ-8ENF9102V	Panasonic Electronic Components	91 kOhms	±1%	0.25	±100	Automotive AEC-Q200	Not For New Designs
ERJ-P08J913V	Panasonic Electronic Components	91 kOhms	±5%	0.667	±200	Automotive AEC-Q200, Pulse Withstanding	Active
RC1206FR-0791KL	YAGEO	91 kOhms	±1%	0.25	±100	Moisture Resistant	Active
RC1206JR-0791KL	YAGEO	91 kOhms	±5%	0.25	±100	Moisture Resistant	Active
RMCF1206FT91K0	Stackpole Electronics Inc	91 kOhms	±1%	0.25	±100	Automotive AEC-Q200	Active

Engineering Selection Recommendations

Direct equivalents with active product status are preferred for new designs. CR1206-JW-913ELF (Bourns), CRCW120691K0JNEA (Vishay Dale), RMCF1206JT91K0 (Stackpole), and RC1206JR-0791KL (YAGEO) provide immediate replacement capability with identical electrical performance and current manufacturing support.

For applications requiring automotive qualification, CRCW120691K0JNEA, RMCF1206JT91K0, and ERJ-P08J913V carry AEC-Q200 certification. ERJ-8GEYJ913V and ERJ-8ENF9102V are marked "Not For New Designs" and should be avoided in new product development.

Upgrade options with ±1% tolerance (ERJ-8ENF9102V, RC1206FR-0791KL, RMCF1206FT91K0) provide improved accuracy at identical power rating and package. ERJ-P08J913V offers higher power capability (0.667W) with pulse withstanding characteristics for applications requiring enhanced transient performance.

All listed parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a direct replacement for the ±5% MCR18ERTJ913?

A: Yes. Parts with ±1% tolerance (ERJ-8ENF9102V, RC1206FR-0791KL, RMCF1206FT91K0) are electrically compatible and provide superior accuracy. They are direct PCB replacements with no circuit modifications required.

Q: What is the difference between direct equivalents and upgrade options?

A: Direct equivalents maintain all original specifications including ±5% tolerance and 0.25W power rating. Upgrade options either tighten tolerance to ±1% or increase power rating to 0.667W. Both categories are mechanically and electrically compatible with the original part.

Q: Are automotive-qualified parts (AEC-Q200) suitable for non-automotive applications?

A: Yes. AEC-Q200 parts meet automotive reliability standards and are fully compatible with general industrial and consumer applications. They represent a superset of standard reliability requirements.

Q: Does package size vary among substitute parts?

A: All listed parts use the 1206 (3216 Metric) package. Physical dimensions vary slightly (length 0.120" to 0.126", width 0.061" to 0.063", height 0.024" to 0.030") but remain within standard 1206 footprint tolerances for PCB compatibility.

Q: Why are some parts marked "Not For New Designs"?

A: Parts designated "Not For New Designs" (ERJ-8GEYJ913V, ERJ-8ENF9102V) are in mature or declining production phases. While functionally equivalent and currently in stock, active alternatives are recommended for long-term supply chain stability.

Q: What is the significance of moisture resistance features?

A: Moisture-resistant variants (CR1206-JW-913ELF, RC1206FR-0791KL, RC1206JR-0791KL) provide enhanced protection in humid environments. Standard parts without this designation are suitable for controlled manufacturing and storage conditions.

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