KTR03EZPJ821 Equivalent & Substitute Parts

Part Overview

The KTR03EZPJ821 is a 0603 (1608 Metric) thick film chip resistor manufactured by Rohm Semiconductor, rated at 820 Ohms ±5% with 0.1W power handling. This component is qualified to AEC-Q200 automotive standards and operates across -55°C to 155°C. The part is currently active in production with 947 units in stock.

Substitute parts are necessary when the original part becomes unavailable, when design requirements shift toward higher tolerance specifications, or when alternative packaging formats are required for manufacturing optimization.

Key Parameters

Parameter	Value
Resistance	820 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Resistance value: 820 Ohms (exact match required)
Package format: 0603 (1608 Metric) (exact match required)
Power rating: 0.1W minimum (equal or higher acceptable)
Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)
Composition: Thick film (required for electrical performance equivalence)

Secondary Compatibility Factors:

Tolerance: ±5% or tighter (±1% substitutes are direct upgrades)
Temperature coefficient: ±200ppm/°C or better (±100ppm/°C substitutes are upgrades)
Automotive qualification: AEC-Q200 (preferred for automotive applications; non-automotive parts acceptable for non-critical applications)
Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (both acceptable for assembly)

All substitute parts listed meet the primary compatibility requirements. Parts are grouped by tolerance specification, with ±1% tolerance parts representing performance upgrades over the original ±5% specification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Packaging	Product Status
KTR03EZPJ821	Rohm Semiconductor	820 Ω	±5%	0.1	±200	-55 to 155	Yes	TR	Active
KTR03EZPF8200	Rohm Semiconductor	820 Ω	±1%	0.1	±100	-55 to 155	Yes	TR	Active
MCR03ERTF8200	Rohm Semiconductor	820 Ω	±1%	0.1	±100	-55 to 155	No	CT & Digi-Reel®	Discontinued
CRCW0603820RJNEA	Vishay Dale	820 Ω	±5%	0.1	±200	-55 to 155	Yes	CT & Digi-Reel®	Active
CRG0603F820R	TE Connectivity	820 Ω	±1%	0.1	±100	-55 to 155	No	TR	Active
ERJ-3EKF8200V	Panasonic	820 Ω	±1%	0.1	±100	-55 to 155	Yes	CT & Digi-Reel®	Active
ERJ-3GEYJ821V	Panasonic	820 Ω	±5%	0.1	±200	-55 to 155	Yes	TR	Active
RC0603FR-07820RL	YAGEO	820 Ω	±1%	0.1	±100	-55 to 155	No	CT & Digi-Reel®	Active
RC0603JR-07820RL	YAGEO	820 Ω	±5%	0.1	±200	-55 to 155	No	CT & Digi-Reel®	Active
RMCF0603FT820R	Stackpole Electronics	820 Ω	±1%	0.1	±100	-55 to 155	Yes	TR	Active
RMCF0603JT820R	Stackpole Electronics	820 Ω	±5%	0.1	±200	-55 to 155	Yes	TR	Active

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance, Same Automotive Rating):

CRCW0603820RJNEA (Vishay Dale): Active status, AEC-Q200 qualified, ±5% tolerance match, Cut Tape packaging available with high inventory (58,993 units).
ERJ-3GEYJ821V (Panasonic): Active status, AEC-Q200 qualified, ±5% tolerance match, Tape & Reel packaging, high inventory (73,318 units).
RMCF0603JT820R (Stackpole Electronics): Active status, AEC-Q200 qualified, ±5% tolerance match, Tape & Reel packaging, high inventory (448,549 units).

Performance Upgrade (Tighter Tolerance, Automotive Rating):

KTR03EZPF8200 (Rohm Semiconductor): Same manufacturer as original, ±1% tolerance upgrade, AEC-Q200 qualified, active status, Tape & Reel packaging (1,362 units).
ERJ-3EKF8200V (Panasonic): ±1% tolerance upgrade, AEC-Q200 qualified, active status, Cut Tape packaging, highest inventory among ±1% automotive-rated options (102,393 units).
RMCF0603FT820R (Stackpole Electronics): ±1% tolerance upgrade, AEC-Q200 qualified, active status, Tape & Reel packaging, highest overall inventory (450,115 units).

Non-Automotive Alternatives (Active Status, No AEC-Q200):

CRG0603F820R (TE Connectivity): ±1% tolerance, active status, Tape & Reel packaging (20,600 units).
RC0603FR-07820RL (YAGEO): ±1% tolerance, moisture-resistant feature, active status, Cut Tape packaging, highest inventory among non-automotive ±1% options (349,096 units).
RC0603JR-07820RL (YAGEO): ±5% tolerance match, moisture-resistant feature, active status, Cut Tape packaging (10,400 units).

Avoid:

MCR03ERTF8200 (Rohm Semiconductor): Discontinued at DiGi Electronics; use KTR03EZPF8200 instead for Rohm ±1% automotive-rated alternative.

Frequently Asked Questions (FAQ)

Q: Can I substitute a ±1% tolerance part for the original ±5% part? A: Yes. A ±1% tolerance part is a direct performance upgrade and will function in any circuit designed for ±5% tolerance. The tighter tolerance provides improved circuit accuracy without any compatibility issues.

Q: Does the substitute part need to have AEC-Q200 certification? A: AEC-Q200 certification is required only for automotive applications subject to automotive qualification standards. For non-automotive applications, non-certified parts are acceptable provided all other electrical and mechanical parameters match. If the original design specifies AEC-Q200, maintain this requirement in substitutes.

Q: Are Tape & Reel and Cut Tape & Digi-Reel® packaging interchangeable? A: Both packaging formats are compatible for assembly into the same 0603 footprint. The choice depends on your manufacturing process and equipment. Tape & Reel is standard for high-volume automated assembly; Cut Tape & Digi-Reel® is suitable for lower-volume or mixed-component runs.

Q: What is the significance of temperature coefficient differences? A: Temperature coefficient indicates resistance value drift across the operating temperature range. The original part has ±200ppm/°C; ±1% tolerance substitutes have ±100ppm/°C. Lower temperature coefficient means better stability across temperature extremes. This is an upgrade for precision applications but not required for general-purpose circuits.

Q: Can I use a non-automotive part in an automotive application? A: Non-automotive parts lack AEC-Q200 qualification testing and reliability data required for automotive use. Use only AEC-Q200 qualified parts for automotive applications unless the circuit is non-critical and design documentation explicitly permits non-qualified alternatives.

Q: Why do some substitutes have different physical dimensions? A: Although all parts use the 0603 (1608 Metric) package designation, minor dimensional variations exist between manufacturers (e.g., 0.063" L x 0.031" W versus 0.061" L x 0.031" W). These variations remain within PCB footprint tolerances and do not affect assembly or electrical performance.

Q: Is inventory level a factor in part selection? A: Inventory levels indicate current availability but do not affect electrical or mechanical compatibility. High-inventory parts (such as RMCF0603JT820R with 448,549 units) offer supply chain advantages for long-term production runs.

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