Equivalent & Substitute Parts for RN732BTTD3322B05

Part Overview

The RN732BTTD3322B05 is a 33.2 kOhms ±0.1% 0.125W (1/8W) thin film chip resistor in 1206 (3216 Metric) package manufactured by KOA Speer Electronics, Inc. This part is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. All substitute parts maintain the core electrical specifications: 33.2 kOhms resistance value, 1206 package form factor, and thin film composition with moisture resistance.

Key Parameters

Parameter	Value
Resistance	33.2 kOhms
Tolerance	±0.1%
Power Rating	0.125W (1/8W)
Package / Case	1206 (3216 Metric)
Composition	Thin Film
Temperature Coefficient	±5ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Packaging	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution of the RN732BTTD3322B05 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 33.2 kOhms (exact match required)
Package / Case: 1206 (3216 Metric) (physical and electrical footprint compatibility)
Composition: Thin Film (electrical performance characteristics)
Temperature Coefficient: ±5ppm/°C (thermal stability)
Moisture Sensitivity Level: 1 (Unlimited) (handling and storage requirements)

Allowable Variation Parameters:

Tolerance: ±0.1% or tighter (±0.05%, ±0.02%, ±0.01%)
Power Rating: 0.125W or higher (0.25W, 0.4W acceptable)
Operating Temperature Range: -55°C to 155°C or -55°C to 125°C (both acceptable)
Product Status: Active preferred over Obsolete
Certifications: AEC-Q200 automotive qualification adds value but is not mandatory

All substitute parts listed maintain the 1206 package footprint, thin film construction, and moisture resistance. Tolerance improvements and power rating increases represent upgrades that enhance performance without compromising compatibility.

Parameter Comparison

Parameter	RN732BTTD3322B05	RN73R2BTTD3322B05	PLT1206Z3322LBTS	RG3216V-3322-B-T5	RG3216V-3322-P-T1	RG3216V-3322-W-T1	TNPU120633K2AZEN00	TNPU120633K2BZEN00
Manufacturer	KOA Speer	KOA Speer	Vishay Dale	Susumu	Susumu	Susumu	Vishay Dale	Vishay Dale
Resistance	33.2 kΩ	33.2 kΩ	33.2 kΩ	33.2 kΩ	33.2 kΩ	33.2 kΩ	33.2 kΩ	33.2 kΩ
Tolerance	±0.1%	±0.1%	±0.01%	±0.1%	±0.02%	±0.05%	±0.05%	±0.1%
Power Rating	0.125W	0.25W	0.4W	0.25W	0.25W	0.25W	0.25W	0.25W
Package	1206	1206	1206	1206	1206	1206	1206	1206
Composition	Thin Film	Thin Film	Thin Film	Thin Film	Thin Film	Thin Film	Thin Film	Thin Film
Temperature Coefficient	±5ppm/°C	±5ppm/°C	±5ppm/°C	±5ppm/°C	±5ppm/°C	±5ppm/°C	±5ppm/°C	±5ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 125°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 125°C	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
AEC-Q200	No	Yes	No	Yes	Yes	Yes	Yes	Yes
MSL Rating	1	1	1	1	1	1	1	1

Engineering Selection Recommendations

Direct Replacement (Same Power Rating): No direct replacement exists at the 0.125W power rating. The RN732BTTD3322B05 is obsolete with no active equivalent from KOA Speer at identical power specifications.

Primary Substitutes (Higher Power Rating, Active Status):

RN73R2BTTD3322B05 (KOA Speer) – Recommended for general applications requiring KOA Speer continuity. Increases power rating to 0.25W while maintaining ±0.1% tolerance, ROHS3 compliance, and -55°C ~ 155°C operating range. Includes AEC-Q200 automotive qualification. Active product status ensures long-term availability.
RG3216V-3322-B-T5 (Susumu) – Recommended for automotive and industrial applications. Maintains ±0.1% tolerance with 0.25W power rating. AEC-Q200 certified. ROHS3 compliant. Operating range -55°C ~ 155°C. Active status with high inventory (1096 pcs).
TNPU120633K2BZEN00 (Vishay Dale) – Recommended for applications requiring anti-sulfur protection and automotive qualification. Matches ±0.1% tolerance with 0.25W power rating. AEC-Q200 certified. ROHS3 compliant. Operating range -55°C ~ 125°C. Active status with high inventory (1055 pcs).

Upgraded Substitutes (Improved Tolerance):

RG3216V-3322-W-T1 (Susumu) – Tighter tolerance ±0.05% with 0.25W power rating. AEC-Q200 certified. ROHS3 compliant. -55°C ~ 155°C operating range. Suitable for precision applications.
RG3216V-3322-P-T1 (Susumu) – Highest tolerance ±0.02% with 0.25W power rating. AEC-Q200 certified. ROHS3 compliant. -55°C ~ 155°C operating range. Suitable for high-precision measurement and calibration circuits.
TNPU120633K2AZEN00 (Vishay Dale) – Tolerance ±0.05% with 0.25W power rating. AEC-Q200 certified. ROHS3 compliant. Anti-sulfur protection. -55°C ~ 125°C operating range.

Premium Upgrade (Highest Power and Tolerance):

PLT1206Z3322LBTS (Vishay Dale) – Highest power rating 0.4W with tightest tolerance ±0.01%. Includes anti-corrosive and flame-proof features. Note: RoHS non-compliant status requires compliance verification for regulated applications. Operating range -55°C ~ 125°C.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original RN732BTTD3322B05?

A: Yes. All listed substitute parts with 0.25W or 0.4W power ratings are electrically compatible. Higher power ratings provide thermal margin and do not affect circuit performance. The 1206 package footprint remains identical across all substitutes.

Q: What is the difference between the Susumu RG3216V series parts with different tolerance grades?

A: All three Susumu RG3216V variants (±0.05%, ±0.02%, ±0.01%) maintain identical 33.2 kOhms resistance, 0.25W power rating, 1206 package, and AEC-Q200 certification. Tolerance differences affect measurement accuracy: ±0.05% for general applications, ±0.02% for precision circuits, ±0.01% for high-accuracy measurement systems. Selection depends on circuit tolerance requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Seven of eight substitute parts are ROHS3 compliant. PLT1206Z3322LBTS (Vishay Dale) is RoHS non-compliant and requires compliance verification before use in regulated applications or markets with RoHS requirements.

Q: Which substitute part is recommended for automotive applications?

A: All substitute parts except PLT1206Z3322LBTS carry AEC-Q200 automotive qualification. RN73R2BTTD3322B05, RG3216V series (all variants), and TNPU series parts are suitable for automotive use. Selection among these depends on tolerance requirements and anti-sulfur protection needs.

Q: What is the operating temperature difference between substitute parts?

A: Most substitute parts operate -55°C ~ 155°C (RN73R2BTTD3322B05, RG3216V series). Vishay Dale parts (PLT1206Z3322LBTS, TNPU series) operate -55°C ~ 125°C. For applications requiring full -55°C ~ 155°C range, select KOA Speer RN73R2BTTD3322B05 or Susumu RG3216V variants.

Q: Can I substitute the RN732BTTD3322B05 with a part having tighter tolerance?

A: Yes. Tighter tolerance parts (±0.05%, ±0.02%, ±0.01%) are backward compatible with circuits designed for ±0.1% tolerance. They provide improved accuracy without circuit modification. Select based on measurement precision requirements.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed substitute parts maintain MSL 1 rating, ensuring identical storage and handling requirements.

Q: Are the physical dimensions identical across all substitute parts?

A: All parts use 1206 (3216 Metric) package with identical length (0.126" / 3.20mm) and width (0.063" / 1.60mm). Height varies slightly: KOA Speer and Susumu parts are 0.028" / 0.020" maximum; Vishay Dale parts are 0.033" / 0.026" maximum. These variations are within standard PCB assembly tolerances.

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