KA358D Equivalent & Substitute Parts

Part Overview

The KA358D is a general-purpose operational amplifier integrated circuit manufactured by onsemi, configured as a dual-channel amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The KA358D operates across a wide supply voltage range of 3V to 32V with a maximum output current of 30mA per channel, suitable for general-purpose analog signal processing applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	KA358D
Manufacturer	onsemi
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	2
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Current - Input Bias	45 nA
Voltage - Input Offset	2.9 mV
Current - Supply	800µA
Current - Output / Channel	30 mA
Voltage - Supply Span (Min)	3 V
Voltage - Supply Span (Max)	32 V
Operating Temperature	0°C ~ 70°C
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the KA358D is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Package type: 8-SOIC surface mount configuration
Number of circuits: Dual-channel (2 circuits)
Amplifier type: General Purpose
Supply voltage range: Minimum 3V, Maximum ≥32V
Input bias current: 45 nA
Mounting type: Surface Mount

Secondary Compatibility Factors:

Input offset voltage: ≤2.9 mV preferred
Output current per channel: ≥30 mA
Operating temperature range: Must encompass 0°C to 70°C minimum
Moisture sensitivity: MSL 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Functional Equivalents (matching all primary criteria with active product status) and Enhanced Performance Alternatives (exceeding baseline specifications while maintaining package and pin compatibility).

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Number of Circuits	Package	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current/Ch (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)
KA358D	onsemi	Obsolete	General Purpose	2	8-SOIC	45	2.9	800	30	3	32	0 ~ 70
LM258DR2G	onsemi	Active	General Purpose	2	8-SOIC	45	2	800	40	3	32	-25 ~ 85
LM2904DR2G	onsemi	Active	General Purpose	2	8-SOIC	45	2	800	40	3	26	-40 ~ 85
LM2904VDR2G	onsemi	Active	General Purpose	2	8-SOIC	45	7	1500	40	3	32	-40 ~ 125
LM358ADR2G	onsemi	Active	General Purpose	2	8-SOIC	45	2	800	40	3	32	0 ~ 70
MC34072ADR2G	onsemi	Active	General Purpose	2	8-SOIC	100	0.5	1900	30	3	44	0 ~ 70
MC34072DR2G	onsemi	Active	General Purpose	2	8-SOIC	100	1	1900	30	3	44	0 ~ 70
MC34072VDR2G	onsemi	Active	General Purpose	2	8-SOIC	100	1	1900	30	3	44	-40 ~ 125
NCV2904DR2G	onsemi	Active	General Purpose	2	8-SOIC	45	7	1500	40	3	32	-40 ~ 125
LM358S-13	Diodes Incorporated	Active	General Purpose	2	8-SOIC	45	2	1000	40	3	32	0 ~ 70
ADA4062-2ARZ-R7	Analog Devices Inc.	Active	J-FET	2	8-SOIC	0.002	0.75	165	20	8	36	-40 ~ 125

Engineering Selection Recommendations

Tier 1: Direct Functional Equivalents (Recommended for KA358D Replacement)

The following parts provide direct functional equivalence with active product status and full compliance certifications:

LM358ADR2G: Identical operating temperature range (0°C ~ 70°C) to the KA358D. Matches all primary substitution criteria with improved output current (40mA vs 30mA). Active product status with ROHS3 compliance. Suitable for direct pin-compatible replacement in existing designs.
LM258DR2G: Extends operating temperature range (-25°C ~ 85°C) while maintaining identical supply voltage span (3V ~ 32V). Improved input offset voltage (2mV vs 2.9mV). Active product status with ROHS3 compliance and high inventory availability.

Tier 2: Extended Temperature Range Alternatives

LM2904VDR2G: Extends operating temperature to -40°C ~ 125°C with identical supply voltage span (3V ~ 32V). Increased supply current (1.5mA vs 800µA). Active product status with ROHS3 compliance. Suitable for applications requiring wider temperature operation.
NCV2904DR2G: Extends operating temperature to -40°C ~ 125°C with identical supply voltage span (3V ~ 32V). Increased supply current (1.5mA vs 800µA). Active product status with ROHS3 compliance. High inventory availability.

Tier 3: Enhanced Performance Alternatives

MC34072ADR2G and MC34072DR2G: Provide enhanced performance specifications including superior input offset voltage (0.5mV to 1mV), extended supply voltage range (3V ~ 44V), and higher slew rate (13V/µs). Maintain identical operating temperature range (0°C ~ 70°C). Active product status with ROHS3 compliance. Suitable for precision applications requiring improved performance margins.
MC34072VDR2G: Extended temperature range (-40°C ~ 125°C) variant of MC34072 series with enhanced performance specifications.

Cross-Manufacturer Alternative

LM358S-13 (Diodes Incorporated): Provides functional equivalence with identical operating temperature range (0°C ~ 70°C) and supply voltage span (3V ~ 32V). Active product status with ROHS3 compliance. Suitable for applications where multi-source qualification is required.

Specialized Application Alternative

ADA4062-2ARZ-R7 (Analog Devices Inc.): J-FET input amplifier with significantly lower input bias current (2pA vs 45nA) and superior input offset voltage (750µV). Extended temperature range (-40°C ~ 125°C). Requires minimum supply voltage of 8V. Suitable for high-impedance signal conditioning applications where input bias current must be minimized.

Frequently Asked Questions (FAQ)

Q: Can LM358ADR2G be used as a direct replacement for KA358D?

A: Yes. LM358ADR2G provides direct functional equivalence with identical operating temperature range (0°C ~ 70°C), matching supply voltage span (3V ~ 32V), and identical input bias current (45nA). The package, pin configuration, and mounting type are identical. LM358ADR2G is active product status with ROHS3 compliance, making it suitable for direct substitution in existing designs.

Q: What is the primary difference between LM258DR2G and LM2904DR2G?

A: The primary difference is the maximum supply voltage specification. LM258DR2G supports 3V ~ 32V, while LM2904DR2G supports 3V ~ 26V. Both share identical input bias current (45nA), supply current (800µA), and output current per channel (40mA). LM2904DR2G extends the operating temperature range to -40°C ~ 85°C compared to LM258DR2G at -25°C ~ 85°C.

Q: Why would I select MC34072 variants over LM358 variants?

A: MC34072 variants provide enhanced performance specifications including superior input offset voltage (0.5mV to 1mV vs 2mV), higher slew rate (13V/µs), and extended supply voltage range (3V ~ 44V). These improvements are beneficial for precision analog signal processing applications. However, MC34072 variants have higher supply current (1.9mA vs 800µA), which may impact power consumption in battery-powered designs.

Q: Is the ADA4062-2ARZ-R7 compatible with the KA358D?

A: ADA4062-2ARZ-R7 is pin-compatible in the 8-SOIC package but is not a direct functional equivalent. It is a J-FET input amplifier with significantly different electrical characteristics: input bias current of 2pA (vs 45nA), minimum supply voltage of 8V (vs 3V), and maximum output current of 20mA per channel (vs 30mA). Selection of ADA4062-2ARZ-R7 requires circuit redesign and is appropriate only for applications requiring extremely low input bias current.

Q: What is the impact of increased supply current on system design?

A: Increased supply current affects power dissipation and thermal management. LM2904VDR2G and NCV2904DR2G operate at 1.5mA supply current (vs 800µA for KA358D), resulting in approximately 1.4mW additional power dissipation per channel at 5V supply. For battery-powered or thermally constrained applications, this may require design modifications. For line-powered applications, this impact is typically negligible.

Q: Can I use LM2904DR2G in applications requiring operation above 26V?

A: No. LM2904DR2G has a maximum supply voltage specification of 26V. For applications requiring operation up to 32V, use LM258DR2G, LM2904VDR2G, or NCV2904DR2G, which all support 3V ~ 32V supply voltage range.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. All parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Are there inventory considerations for part selection?

A: Yes. NCV2904DR2G has the highest inventory availability (655,300 pcs), followed by LM258DR2G (505,200 pcs) and LM2904DR2G (505,300 pcs). LM358ADR2G has 45,400 pcs available. MC34072 variants have lower inventory levels (2,166 to 30,100 pcs). For high-volume production, NCV2904DR2G or LM258DR2G are recommended based on availability.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

A: Both are surface mount tape and reel formats suitable for automated assembly. Cut Tape (CT) & Digi-Reel® allows for smaller quantity orders with tape cut to specific lengths. Tape & Reel (TR) is supplied on full reels (typically 2,500 or 5,000 units). Selection depends on production volume and inventory management requirements. Both formats are compatible with standard pick-and-place assembly equipment.

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