Equivalent & Substitute Parts for NJM084D

Part Overview

The NJM084D from Nisshinbo Micro Devices Inc. is a J-FET quad operational amplifier in a through-hole 14-DIP package, designated as obsolete. It features four circuits, moderate slew rate, and a specific gain bandwidth product suitable for linear amplifier applications. Due to its discontinued status and RoHS non-compliance, it is necessary to identify direct substitute models that match the original electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	NJM084D
Manufacturer	Nisshinbo Micro Devices Inc.
Amplifier Type	J-FET
Number of Circuits	4
Slew Rate	13V/µs
Gain Bandwidth Product	3 MHz
Current - Input Bias	30 pA
Voltage - Input Offset	5 mV
Current - Supply	6mA
Voltage - Supply Span (Min)	8 V
Voltage - Supply Span (Max)	36 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
RoHS Status	RoHS non-compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on the electrical and mechanical parameters provided, including amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, supply voltage range, operating temperature, mounting type, and package specifications. All substitutes maintain compatibility within the Linear, Amplifiers category and retain the 14-DIP through-hole form factor.

Allowed differences are limited to provided specs; no extrapolation or inference is used. Substitute parts may differ in RoHS compliance, supply currents, or slightly in parameter values provided, provided that all group keys are matched as summarized above.

Parameter Comparison

Parameter	NJM084D	OP467GPZ	OP470GPZ	TL084ACN	TL084BCN
Amplifier Type	J-FET	General Purpose	General Purpose	J-FET	J-FET
Number of Circuits	4	4	4	4	4
Slew Rate	13V/µs	350V/µs	3V/µs	13V/µs	13V/µs
Gain Bandwidth Product	3 MHz	28 MHz	6 MHz	3 MHz	3 MHz
Current - Input Bias	30 pA	150 nA	15 nA	30 pA	30 pA
Voltage - Input Offset	5 mV	200 µV	400 µV	3 mV	2 mV
Current - Supply	6mA	8mA (x4 Channels)	9mA	1.4mA (x4 Channels)	1.4mA (x4 Channels)
Voltage - Supply Span (Min)	8 V	9 V	9 V	10 V	10 V
Voltage - Supply Span (Max)	36 V	36 V	36 V	30 V	30 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Selection of substitute parts for NJM084D should be guided by the obsolete status and RoHS non-compliance of the original component. All substitute models listed (OP467GPZ, OP470GPZ, TL084ACN, TL084BCN) are active and RoHS3 compliant. For applications requiring compliance with current environmental legislation and ongoing availability, these substitutes offer compatible mechanical and electrical parameters within the Linear, Amplifiers category and utilize the same through-hole 14-DIP package. Certifications such as ROHS3 and REACH Unaffected apply for all listed alternatives.

Frequently Asked Questions (FAQ)

Q1: What are the most important substitution criteria for NJM084D?
A1: Substitute selection is based strictly on amplifier type, number of circuits, electrical characteristics (slew rate, gain bandwidth, input bias, input offset, supply current, supply voltage range, operating temperature), and package compatibility (through-hole 14-DIP).

Q2: Are there differences in operating temperature between NJM084D and substitutes?
A2: The original NJM084D and OP467GPZ/OP470GPZ cover -40°C ~ 85°C operating temperature, while TL084ACN and TL084BCN operate from 0°C ~ 70°C.

Q3: Can substitutes be directly soldered in place of NJM084D?
A3: All listed substitutes share the 14-DIP through-hole form factor, permitting direct replacement in compatible board layouts.

Q4: How does RoHS compliance affect substitute choice?
A4: NJM084D is RoHS non-compliant, while all substitutes are ROHS3 compliant, aligning with current regulatory standards for environmental safety in new designs.

Q5: Is electrical performance precisely matched across all substitutes?
A5: Substitute parts maintain compatibility within group key parameters, with slight variation in specific electrical values. All listed alternatives are suitable for quad op-amp applications in similar 14-DIP mounting environments.

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