Equivalent & Substitute Parts for KTR18EZPJ821

Part Overview

The KTR18EZPJ821 is an 820 Ohm ±5% 0.25W (1/4W) thick film chip resistor in 1206 (3216 Metric) package manufactured by Rohm Semiconductor. This component is rated for automotive applications under AEC-Q200 standard with high voltage capability and operates across -55°C to 155°C. The part is currently active in production with 964 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand higher tolerance specifications, when increased power dissipation is needed, or when alternative sourcing is required for supply chain resilience.

Key Parameters

Parameter	Value
Resistance	820 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package	1206 (3216 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:

Direct Substitutes maintain all electrical and mechanical parameters: 820 Ohm resistance, ±5% tolerance, 0.25W power rating, 1206 package, thick film composition, -55°C to 155°C operating range, and AEC-Q200 automotive rating. These parts are functionally interchangeable with KTR18EZPJ821.

Upgrade Substitutes improve tolerance specification from ±5% to ±1% while maintaining all other parameters including 820 Ohm resistance, 0.25W power rating, 1206 package, and operating temperature range. These provide enhanced accuracy for precision-critical applications.

Similar Substitutes increase power rating from 0.25W to 0.5W while maintaining 820 Ohm resistance, ±5% tolerance, 1206 package, and automotive AEC-Q200 rating. These accommodate higher power dissipation requirements in the same footprint.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and 1206 package dimensions to ensure PCB compatibility and assembly process compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status	Inventory
KTR18EZPJ821	Rohm Semiconductor	820Ω	±5%	0.25	±200	-55 to 155	Yes	Active	964
CRCW1206820RJNEA	Vishay Dale	820Ω	±5%	0.25	±200	-55 to 155	Yes	Active	2308
ERJ-8GEYJ821V	Panasonic Electronic Components	820Ω	±5%	0.25	±200	-55 to 155	Yes	Not For New Designs	59231
RMCF1206JT820R	Stackpole Electronics Inc	820Ω	±5%	0.25	±200	-55 to 155	Yes	Active	80963
RC1206JR-07820RL	YAGEO	820Ω	±5%	0.25	±100	-55 to 155	No	Active	397054
ESR18EZPJ821	Rohm Semiconductor	820Ω	±5%	0.5	±200	-55 to 155	Yes	Active	9066
KTR18EZPF8200	Rohm Semiconductor	820Ω	±1%	0.25	±100	-55 to 155	Yes	Active	1955
CR1206-FX-8200ELF	Bourns Inc.	820Ω	±1%	0.25	±100	-55 to 155	No	Active	51663
CRG1206F820R	TE Connectivity Passive Product	820Ω	±1%	0.25	±100	-55 to 155	No	Active	21071
ERJ-8ENF8200V	Panasonic Electronic Components	820Ω	±1%	0.25	±100	-55 to 155	Yes	Not For New Designs	45630
RC1206FR-07820RL	YAGEO	820Ω	±1%	0.25	±100	-55 to 155	No	Active	85369

Engineering Selection Recommendations

For Direct Substitution (Same Specifications): Select CRCW1206820RJNEA (Vishay Dale), RMCF1206JT820R (Stackpole Electronics), or RC1206JR-07820RL (YAGEO). All three maintain ±5% tolerance, 0.25W power rating, and 1206 package. RMCF1206JT820R and CRCW1206820RJNEA carry AEC-Q200 automotive certification matching the original part. RC1206JR-07820RL is active production with highest inventory availability (397,054 units) but lacks AEC-Q200 rating; use only in non-automotive applications or where automotive certification is not required.

For Automotive Applications Requiring AEC-Q200: CRCW1206820RJNEA (Vishay Dale) and RMCF1206JT820R (Stackpole Electronics) are preferred direct substitutes. Both maintain full AEC-Q200 compliance and identical electrical specifications. ESR18EZPJ821 (Rohm Semiconductor) provides higher power dissipation (0.5W) while maintaining AEC-Q200 rating if thermal requirements increase.

For Improved Tolerance (±1%): KTR18EZPF8200 (Rohm Semiconductor) and ERJ-8ENF8200V (Panasonic) both upgrade tolerance to ±1% while maintaining AEC-Q200 certification and 0.25W power rating. KTR18EZPF8200 is active production; ERJ-8ENF8200V is marked "Not For New Designs" and should be avoided for new product development.

For Non-Automotive Applications: CR1206-FX-8200ELF (Bourns), CRG1206F820R (TE Connectivity), and RC1206FR-07820RL (YAGEO) offer ±1% tolerance upgrades without automotive certification requirements. These are suitable for consumer and industrial applications where AEC-Q200 is not mandated.

Avoid for New Designs: ERJ-8GEYJ821V (Panasonic) and ERJ-8ENF8200V (Panasonic) are both marked "Not For New Designs." Use only for legacy product support or repair applications.

Frequently Asked Questions (FAQ)

Q: Can I use RC1206JR-07820RL as a direct replacement for KTR18EZPJ821 in automotive applications?

A: RC1206JR-07820RL matches all electrical and mechanical parameters (820Ω, ±5%, 0.25W, 1206 package, -55°C to 155°C). However, it lacks AEC-Q200 automotive certification. Use only if your application does not require automotive qualification. For automotive designs, select CRCW1206820RJNEA or RMCF1206JT820R instead.

Q: What is the difference between tolerance upgrade options?

A: KTR18EZPJ821 specifies ±5% tolerance with ±200ppm/°C temperature coefficient. Upgrade options (KTR18EZPF8200, CR1206-FX-8200ELF, RC1206FR-07820RL) provide ±1% tolerance with ±100ppm/°C temperature coefficient. The tighter tolerance reduces resistance variation across the operating temperature range and improves circuit accuracy. Select upgrade parts only if your design requires this precision.

Q: Can I use ESR18EZPJ821 (0.5W) instead of KTR18EZPJ821 (0.25W)?

A: ESR18EZPJ821 is physically compatible (same 1206 package) and maintains all other specifications including 820Ω resistance, ±5% tolerance, and AEC-Q200 rating. The higher power rating (0.5W vs 0.25W) allows greater current handling and heat dissipation. Use this part only if your circuit requires increased power dissipation; oversizing power rating unnecessarily adds cost without functional benefit.

Q: Are all substitute parts ROHS3 compliant?

A: All parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes and storage requirements.

Q: Which substitute offers the best inventory availability?

A: RC1206JR-07820RL (YAGEO) has the highest inventory at 397,054 units. For AEC-Q200 automotive applications, RMCF1206JT820R (Stackpole) offers 80,963 units. Verify current availability with your supplier before design finalization.

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