RN732ATTD1130B50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1130B50 is a 113 Ohm ±0.1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features moisture-resistant construction with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Resistance	113 Ohms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1130B50 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 113 Ohms (exact match required)
Tolerance: ±0.1% (precision requirement)
Package: 0805 (2012 Metric) (physical and electrical footprint)
Composition: Thin Film (electrical performance characteristics)
Operating temperature range: -55°C ~ 155°C minimum (thermal envelope)
Moisture Sensitivity Level: 1 (Unlimited) (environmental robustness)

Power Rating Considerations: Substitute parts are grouped into three categories based on power dissipation capacity:

Direct Equivalents (0.1W / 1/10W): CPF0805B113RE1 maintains identical power rating to the original part.
Upgraded Substitutes (0.125W / 1/8W and higher): RN73R2ATTD1130B50, RT0805BRE07113RL, AT0805BRD07113RL, ERA-6AEB1130V, MCU08050D1130BP100, MCU08050D1130BP500 provide increased power dissipation capacity while maintaining all other electrical parameters. These are suitable for applications where the original 0.1W rating is adequate but higher thermal margin is beneficial.
Enhanced Capability Substitutes (0.2W / 1/5W and 0.25W / 1/4W): PAT0805E1130BST1 (0.2W) and 2-2176091-9 (0.25W) offer significantly increased power handling for applications requiring greater thermal performance.
High-Power Substitute (0.63W / 5/8W): PHP00805E1130BBT1 provides maximum power dissipation for demanding thermal environments.

All substitute parts maintain 0805 package dimensions, 113 Ohm resistance, ±0.1% tolerance, thin film composition, and ROHS3 compliance. Temperature coefficient variations (±25ppm/°C vs. ±50ppm/°C) and maximum operating temperature differences (125°C vs. 155°C) are noted where applicable.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Package	Status	Features
RN732ATTD1130B50	KOA Speer	113 Ω	±0.1%	0.1	±50	-55 ~ 155	0805	Obsolete	Moisture Resistant
RN73R2ATTD1130B50	KOA Speer	113 Ω	±0.1%	0.125	±50	-55 ~ 155	0805	Active	Automotive AEC-Q200, Moisture Resistant
RT0805BRE07113RL	YAGEO	113 Ω	±0.1%	0.125	±50	-55 ~ 155	0805	Active	Thin Film
AT0805BRD07113RL	YAGEO	113 Ω	±0.1%	0.125	±25	-55 ~ 155	0805	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
CPF0805B113RE1	TE Connectivity	113 Ω	±0.1%	0.1	±25	-55 ~ 155	0805	Active	Thin Film
ERA-6AEB1130V	Panasonic	113 Ω	±0.1%	0.125	±25	-55 ~ 155	0805	Active	Automotive AEC-Q200
2-2176091-9	TE Connectivity	113 Ω	±0.1%	0.25	±25	-55 ~ 155	0805	Active	Thin Film
MCU08050D1130BP100	Vishay	113 Ω	±0.1%	0.125	±25	-55 ~ 125	0805	Active	Anti-Sulfur
MCU08050D1130BP500	Vishay	113 Ω	±0.1%	0.125	±25	-55 ~ 125	0805	Active	Anti-Sulfur
PAT0805E1130BST1	Vishay Dale	113 Ω	±0.1%	0.2	±25	-55 ~ 155	0805	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
PHP00805E1130BBT1	Vishay Dale	113 Ω	±0.1%	0.63	±25	-55 ~ 155	0805	Active	Flame Proof, Moisture Resistant, Safety

Engineering Selection Recommendations

For Direct Replacement (Identical Power Rating): CPF0805B113RE1 (TE Connectivity Passive Product, Neohm series) is the primary direct equivalent, maintaining 0.1W power rating identical to RN732ATTD1130B50. This part is active, ROHS3 compliant, and carries improved temperature coefficient (±25ppm/°C vs. ±50ppm/°C), providing superior stability. Operating temperature range extends to 155°C, matching the original specification.

For Automotive Applications: RN73R2ATTD1130B50 (KOA Speer, same manufacturer as original) provides automotive AEC-Q200 qualification with 0.125W rating and identical temperature coefficient (±50ppm/°C). This maintains design continuity while adding automotive-grade reliability. Alternatively, AT0805BRD07113RL (YAGEO) and ERA-6AEB1130V (Panasonic) offer AEC-Q200 certification with improved ±25ppm/°C temperature coefficient and active product status.

For General Industrial Applications: RT0805BRE07113RL (YAGEO, RT series) provides 0.125W capacity with ±50ppm/°C temperature coefficient, maintaining thermal characteristics similar to the original while offering increased power margin. This part is active and widely available.

For Enhanced Thermal Performance: PAT0805E1130BST1 (Vishay Dale, 0.2W) or 2-2176091-9 (TE Connectivity, 0.25W) are selected when applications require increased power dissipation capacity. Both maintain full operating temperature range (-55°C to 155°C), ROHS3 compliance, and ±0.1% tolerance. PAT0805E1130BST1 adds automotive AEC-Q200 qualification and anti-sulfur protection.

For Maximum Power Dissipation: PHP00805E1130BBT1 (Vishay Dale, 0.63W) is specified for high-power applications requiring flame-proof and safety-rated construction. Note: This part carries RoHS non-compliant status and should be evaluated against specific regulatory requirements.

Temperature Range Consideration: MCU08050D1130BP100 and MCU08050D1130BP500 (Vishay MCU series) operate to maximum 125°C, which is 30°C below the original specification. These parts are suitable only for applications with maximum operating temperature not exceeding 125°C.

Frequently Asked Questions (FAQ)

Q: Can CPF0805B113RE1 directly replace RN732ATTD1130B50 without circuit modification?

A: Yes. CPF0805B113RE1 maintains identical resistance (113 Ohms), tolerance (±0.1%), power rating (0.1W), package (0805), and operating temperature range (-55°C to 155°C). The improved temperature coefficient (±25ppm/°C vs. ±50ppm/°C) provides enhanced stability without requiring design changes.

Q: What is the difference between 0.1W and 0.125W power ratings in practical application?

A: Power rating defines maximum continuous power dissipation. A 0.125W part can safely dissipate 25% more power than a 0.1W part. If circuit analysis confirms power dissipation remains below 0.1W, either rating is acceptable. Higher-rated parts provide thermal margin and extended component life.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitutes except PHP00805E1130BBT1 are ROHS3 compliant. PHP00805E1130BBT1 is RoHS non-compliant and requires regulatory evaluation before use in restricted applications.

Q: Why do some substitutes have ±25ppm/°C temperature coefficient instead of ±50ppm/°C?

A: Temperature coefficient indicates resistance change per degree Celsius. ±25ppm/°C represents tighter tolerance and superior stability across temperature extremes. This is an improvement over the original ±50ppm/°C specification and does not create compatibility issues.

Q: Can I use a 0.25W part (2-2176091-9) in place of the 0.1W original?

A: Yes. Higher power-rated components are electrically compatible when resistance, tolerance, package, and temperature range match. The 0.25W part provides increased thermal margin and is suitable for the same circuit application. Physical dimensions remain within 0805 package specification.

Q: What does "Automotive AEC-Q200" certification mean for component selection?

A: AEC-Q200 is an automotive industry standard ensuring component reliability under automotive environmental conditions (temperature cycling, vibration, humidity). Parts with this certification are suitable for automotive applications and general industrial use. Non-certified parts may be used in non-automotive applications without restriction.

Q: Are MCU08050D1130BP100 and MCU08050D1130BP500 interchangeable?

A: Yes, electrically and mechanically. Both are identical MCU series 113 Ohm 0.125W 0805 resistors with anti-sulfur protection. The part number suffix indicates different packaging quantities (100-piece and 500-piece reels). Selection depends on procurement requirements, not application performance.

Q: Why is PHP00805E1130BBT1 rated at 0.63W in an 0805 package?

A: PHP series resistors employ advanced thin film technology and flame-proof construction enabling higher power dissipation in standard 0805 dimensions. Maximum height reaches 0.033" (0.84mm) compared to typical 0.024" (0.60mm), requiring PCB layout verification for clearance compatibility.

Q: Can I substitute RN73R2ATTD1130B50 (same manufacturer as original) for guaranteed compatibility?

A: RN73R2ATTD1130B50 is from the same manufacturer (KOA Speer) and maintains identical temperature coefficient (±50ppm/°C) and operating range. It adds automotive AEC-Q200 qualification and increases power rating to 0.125W. This represents a direct upgrade with enhanced reliability and is fully compatible.

Q: What is Moisture Sensitivity Level (MSL) 1 and why does it matter?

A: MSL 1 (Unlimited) indicates the component requires no special moisture protection during storage and handling. All listed substitutes maintain MSL 1, ensuring identical storage and assembly process compatibility without additional precautions.

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