Equivalent & Substitute Parts for RN732ATTD1381F25

Part Overview

The RN732ATTD1381F25 is a 1.38 kOhms ±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 is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part features moisture-resistant construction with a temperature coefficient of ±25ppm/°C and operates across the -55°C to 155°C temperature range.

Substiute Parts

RN732ATTD1381F25

KOA Speer Electronics, Inc.In Stock: 1206RN732ATTD1381F25 Datasheet

Current PartRFQ

RN73R2ATTD1381F25

KOA Speer Electronics, Inc.In Stock: 887RN73R2ATTD1381F25 Datasheet

DirectRFQ

PAT0805E1381BST1

Vishay Dale Thin FilmIn Stock: 898PAT0805E1381BST1 Datasheet

UpgradeRFQ

PHP00805E1381BBT1

Vishay Dale Thin FilmIn Stock: 1107PHP00805E1381BBT1 Datasheet

UpgradeRFQ

PHP00805E1381BST1

Vishay Dale Thin FilmIn Stock: 1040PHP00805E1381BST1 Datasheet

UpgradeRFQ

RNCF0805TKE1K38

Stackpole Electronics IncIn Stock: 941RNCF0805TKE1K38 Datasheet

UpgradeRFQ

TNPW08051K38BEEA

Vishay DaleIn Stock: 736TNPW08051K38BEEA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD1381F25 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 1.38 kOhms (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Operating Temperature Range: Minimum -55°C ~ 155°C (substitute must meet or exceed)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (±1% or better)
• Power Rating: May be equal or higher (0.1W or greater)
• Certifications and Features: May include additional certifications (AEC-Q200, RoHS compliance, anti-sulfur properties)

All identified substitute parts maintain the mandatory parameters while offering enhanced specifications in tolerance, power rating, or certifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Series, Active Status): RN73R2ATTD1381F25 from KOA Speer Electronics is the primary direct equivalent. It maintains identical resistance, tolerance, and temperature characteristics while offering increased power rating (0.125W vs. 0.1W) and active product status. This part is ROHS3 compliant and includes automotive AEC-Q200 certification, making it suitable for applications requiring enhanced reliability.

Upgrade Options with Enhanced Tolerance: PAT0805E1381BST1, PHP00805E1381BST1, RNCF0805TKE1K38, and TNPW08051K38BEEA all provide tighter tolerance specifications (±0.1% or ±0.01%) compared to the original ±1%. These parts are active and ROHS3 compliant (except PHP00805E1381BBT1). Selection among these depends on power dissipation requirements and specific application certifications.

High Power Dissipation Applications: PHP00805E1381BST1 and PHP00805E1381BBT1 offer the highest power rating (0.63W) with enhanced tolerance (±0.1%). PHP00805E1381BST1 is preferred due to ROHS3 compliance. PHP00805E1381BBT1 is suitable only for applications where RoHS non-compliance is acceptable.

Automotive Applications: RN73R2ATTD1381F25, PAT0805E1381BST1, RNCF0805TKE1K38, and TNPW08051K38BEEA all carry AEC-Q200 automotive certification. TNPW08051K38BEEA additionally supports extended operating temperature to 175°C.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1381F25 be used as a direct replacement for RN732ATTD1381F25? A: Yes. Both parts share identical resistance (1.38 kOhms), tolerance (±1%), temperature coefficient (±25ppm/°C), operating temperature range (-55°C to 155°C), and 0805 package. RN73R2ATTD1381F25 has higher power rating (0.125W vs. 0.1W) and active product status, making it a suitable direct replacement.

Q: What is the difference between the substitute parts in terms of tolerance? A: The original RN732ATTD1381F25 specifies ±1% tolerance. All substitute parts offer equal or tighter tolerance: RN73R2ATTD1381F25 maintains ±1%, while PAT0805E1381BST1, PHP00805E1381BBT1, PHP00805E1381BST1, and TNPW08051K38BEEA provide ±0.1% tolerance. RNCF0805TKE1K38 offers the tightest tolerance at ±0.01%.

Q: Are all substitute parts ROHS3 compliant? A: All substitute parts are ROHS3 compliant except PHP00805E1381BBT1, which is RoHS non-compliant. For applications requiring RoHS compliance, use RN73R2ATTD1381F25, PAT0805E1381BST1, PHP00805E1381BST1, RNCF0805TKE1K38, or TNPW08051K38BEEA.

Q: Which substitute part is suitable for automotive applications? A: RN73R2ATTD1381F25, PAT0805E1381BST1, RNCF0805TKE1K38, and TNPW08051K38BEEA all carry AEC-Q200 automotive certification. TNPW08051K38BEEA additionally supports extended operating temperature to 175°C.

Q: Can I use a substitute part with higher power rating? A: Yes. Substitute parts with higher power ratings (0.125W, 0.2W, 0.26W, or 0.63W) are electrically compatible with the original 0.1W specification. Higher power ratings provide additional thermal margin and do not affect circuit functionality when the original power dissipation remains unchanged.

Q: What is the significance of the 0805 package specification? A: The 0805 (2012 Metric) package is a surface-mount component with dimensions 2.00mm × 1.25mm (length × width). All substitute parts maintain this identical package format, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Q: Which substitute offers the best tolerance specification? A: RNCF0805TKE1K38 from Stackpole Electronics provides the tightest tolerance at ±0.01%, compared to ±0.1% for most other substitutes and ±1% for the original part. This enhanced tolerance is beneficial for precision analog circuits requiring tight resistor value control.