Equivalent & Substitute Parts for RK73B1HTTC362J

Part Overview

The RK73B1HTTC362J is a 3.6 kOhms ±5% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm). This component is AEC-Q200 automotive qualified and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

The RK73B1HTTC362J carries a product status of "Not For New Designs," indicating it has been superseded. Equivalent and substitute parts are necessary for ongoing production support, design updates, and component availability optimization across multiple sourcing channels.

Substiute Parts

RK73B1HTTC362J

KOA Speer Electronics, Inc.In Stock: 6305RK73B1HTTC362J Datasheet

Current PartRFQ

RK73B1HTTCM362J

KOA Speer Electronics, Inc.In Stock: 1004RK73B1HTTCM362J Datasheet

MFR RecommendedRFQ

AC0201JR-073K6L

YAGEOIn Stock: 771AC0201JR-073K6L Datasheet

DirectRFQ

CRCW02013K60JNED

Vishay DaleIn Stock: 1111CRCW02013K60JNED Datasheet

DirectRFQ

ERJ-1GNJ362C

Panasonic Electronic ComponentsIn Stock: 50750ERJ-1GNJ362C Datasheet

DirectRFQ

CRCW02013K60FKED

Vishay DaleIn Stock: 4756CRCW02013K60FKED Datasheet

UpgradeRFQ

CRCW02013K60FNED

Vishay DaleIn Stock: 2937CRCW02013K60FNED Datasheet

UpgradeRFQ

ERJ-1GNF3601C

Panasonic Electronic ComponentsIn Stock: 92630ERJ-1GNF3601C Datasheet

UpgradeRFQ

MCR006YRTJ362

Rohm SemiconductorIn Stock: 6678MCR006YRTJ362 Datasheet

UpgradeRFQ

RC0603F362CS

Samsung Electro-MechanicsIn Stock: 745RC0603F362CS Datasheet

UpgradeRFQ

RC0603J362CS

Samsung Electro-MechanicsIn Stock: 751RC0603J362CS Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73B1HTTC362J are categorized based on electrical parameter compatibility and product status. The substitution logic is strictly defined by the following criteria:

Direct Equivalents (Same Electrical Specifications): Parts that maintain identical resistance (3.6 kOhms), tolerance (±5%), power rating (0.05W), package (0201), composition (thick film), and temperature coefficient (±200ppm/°C) are classified as direct equivalents. These parts are interchangeable without circuit performance modification.

Manufacturer Recommended Equivalent: RK73B1HTTCM362J from KOA Speer Electronics represents the active product line successor to the discontinued RK73B1HTTC362J, maintaining all electrical and mechanical specifications while offering current production status and availability.

Tolerance Upgrades: Parts with ±1% tolerance instead of ±5% provide improved circuit accuracy. These include CRCW02013K60FKED, CRCW02013K60FNED, ERJ-1GNF3601C, and RC0603F362CS. Tolerance upgrades are electrically compatible but offer tighter resistance value control.

Temperature Performance Variations: Some substitute parts operate to -55°C ~ 125°C instead of -55°C ~ 155°C (ERJ-1GNJ362C, MCR006YRTJ362, RC0603F362CS, RC0603J362CS). These parts are suitable for applications not requiring the full upper temperature range of the original component.

Key Parameters Determining Substitution:

• Resistance value: 3.6 kOhms (non-negotiable)
• Package format: 0201 (0603 Metric) (non-negotiable)
• Power rating: 0.05W minimum (non-negotiable)
• Composition: Thick film (preferred for consistency)
• Tolerance: ±5% minimum acceptable (±1% is upgrade)
• Operating temperature: -55°C minimum; upper limit application-dependent
• RoHS3 compliance: Required
• MSL 1 rating: Preferred for handling compatibility

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation for AEC-Q200 Automotive Applications:

RK73B1HTTCM362J (KOA Speer Electronics) is the manufacturer-recommended equivalent. This part maintains full electrical and mechanical compatibility with the original RK73B1HTTC362J while offering active product status, AEC-Q200 automotive qualification, and identical operating temperature range (-55°C ~ 155°C). Selection of this part ensures continuity with the original design specification and automotive compliance requirements.

Alternative Direct Equivalent with Enhanced Availability:

AC0201JR-073K6L (YAGEO) provides direct electrical equivalence with AEC-Q200 automotive qualification and identical specifications. This part offers moisture-resistant thick film construction and active product status with 697 units in stock, providing a viable alternative when KOA Speer supply is constrained.

For Non-Automotive or Relaxed Temperature Applications:

ERJ-1GNJ362C (Panasonic Electronic Components) offers the same electrical specifications with significantly higher inventory availability (50,708 units). This part is suitable for applications not requiring the full -55°C ~ 155°C temperature range, as it operates to -55°C ~ 125°C. The high inventory level provides supply chain security.

For Improved Tolerance Requirements:

CRCW02013K60FNED (Vishay Dale) provides ±1% tolerance upgrade while maintaining the full -55°C ~ 155°C operating temperature range and ±200ppm/°C temperature coefficient. This part is selected when circuit design requires tighter resistance value control than the original ±5% specification.

Compliance Verification:

All recommended parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, ensuring regulatory and handling compatibility with the original component. Parts without explicit AEC-Q200 designation (Vishay Dale CRCW series, Panasonic ERJ-1GN series, Samsung RC series) are suitable for non-automotive applications or designs where automotive qualification is not a requirement.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM362J be used as a direct replacement for RK73B1HTTC362J in existing designs?

A: Yes. RK73B1HTTCM362J is the manufacturer-recommended equivalent with identical electrical specifications (3.6 kOhms ±5%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and package format (0201). The only difference is product status change from "Not For New Designs" to "Active," making it the preferred choice for production continuity.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance defines the acceptable range of actual resistance value around the nominal 3.6 kOhms specification. ±5% tolerance allows values between 3.42 kOhms and 3.78 kOhms. ±1% tolerance restricts values to 3.564 kOhms and 3.636 kOhms. Select ±1% parts (CRCW02013K60FKED, CRCW02013K60FNED, ERJ-1GNF3601C, RC0603F362CS) when circuit design requires tighter resistance control for precision applications.

Q: Are parts with -55°C ~ 125°C operating range compatible with designs requiring -55°C ~ 155°C?

A: No. Parts with maximum operating temperature of 125°C (ERJ-1GNJ362C, MCR006YRTJ362, RC0603F362CS, RC0603J362CS) are not suitable for applications requiring operation above 125°C. Use only parts rated to -55°C ~ 155°C (RK73B1HTTCM362J, AC0201JR-073K6L, CRCW02013K60JNED, CRCW02013K60FKED, CRCW02013K60FNED) for full temperature range compatibility.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is the Automotive Electronics Council qualification standard for passive components in automotive applications. It certifies the component meets automotive reliability, temperature cycling, and performance requirements. RK73B1HTTC362J, RK73B1HTTCM362J, and AC0201JR-073K6L carry AEC-Q200 designation. Other manufacturers' parts (Vishay Dale, Panasonic, Samsung, Rohm) in this list do not carry explicit AEC-Q200 marking and are suitable for non-automotive or general industrial applications.

Q: Is the 0201 package format standardized across all substitute parts?

A: Yes. All substitute parts listed use the 0201 package format (0.60mm x 0.30mm), ensuring identical PCB footprint compatibility. Physical dimensions (0.024" L x 0.012" W, height 0.010" max) are consistent across all parts, allowing direct board-level substitution without layout modification.

Q: What is MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All parts in this list carry MSL 1 rating, eliminating the need for dry-pack storage or baking procedures before assembly.

Q: Can I substitute a part with higher temperature coefficient (±250ppm/°C) for the original (±200ppm/°C)?

A: Temperature coefficient determines how much the resistance value changes with temperature. Higher temperature coefficient (±250ppm/°C in MCR006YRTJ362, RC0603F362CS, RC0603J362CS) results in greater resistance drift across the operating temperature range. Substitution is acceptable only if circuit design tolerates this additional drift. For precision applications, maintain ±200ppm/°C or lower.

Q: Which substitute part offers the best inventory availability?

A: ERJ-1GNJ362C (Panasonic Electronic Components) provides the highest inventory level at 50,708 units. This part is recommended for applications where supply chain security is a priority and automotive qualification is not required. For automotive applications, RK73B1HTTCM362J (965 units) is the preferred choice despite lower inventory.

Q: Are there any parts in this list that are discontinued?

A: MCR006YRTJ362 (Rohm Semiconductor) is listed as "Discontinued at DiGi Electronics." While 6,623 units remain in stock, this part should not be selected for new designs or long-term production planning. Use active status parts (RK73B1HTTCM362J, AC0201JR-073K6L, CRCW series, ERJ-1GN series, RC series) for ongoing production support.