KA4558D Equivalent & Substitute Parts

Part Overview

The KA4558D is a general purpose operational amplifier manufactured by onsemi, featuring two independent circuits in an 8-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The KA4558D operates across a 44 V supply span with a slew rate of 1.2 V/µs and input bias current of 30 nA, serving applications requiring dual-channel amplification in compact form factors.

Key Parameters

Parameter	Value
Manufacturer Part Number	KA4558D
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
Slew Rate	1.2 V/µs
Current - Input Bias	30 nA
Voltage - Input Offset	2 mV
Current - Supply	3.5 mA (x2 Channels)
Voltage - Supply Span	44 V (Min: 44 V, Max: 44 V)
Operating Temperature	0°C ~ 70°C
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the KA4558D is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility.

Circuit Configuration: The KA4558D contains two independent amplifier circuits. Substitute parts must maintain this dual-circuit architecture.

Amplifier Type Classification: Substitutes are grouped by amplifier type—general purpose, J-FET, audio, or differential—as each type exhibits distinct electrical characteristics affecting circuit performance.

Supply Voltage Range: The KA4558D operates at a fixed 44 V supply span. Substitute parts must support this voltage requirement or provide a compatible range that encompasses the application's supply voltage.

Operating Temperature Range: The KA4558D operates from 0°C to 70°C. Substitutes with extended temperature ranges (such as -40°C to 105°C) provide broader operational flexibility but remain compatible within the original temperature window.

Electrical Performance Metrics: Key differentiators include slew rate, input bias current, input offset voltage, and supply current. These parameters determine signal fidelity, noise performance, and power consumption characteristics.

Product Status and Compliance: Active product status ensures ongoing availability and manufacturing support. RoHS3 compliance and REACH unaffected status indicate regulatory alignment with modern procurement standards.

Parameter Comparison

Parameter	KA4558D (Main)	RC4558D	LF253DT	LM1458M/NOPB	MC4558IDT	TL3472QDRQ1	TL062CD	TL072ACDT
Manufacturer	onsemi	Texas Instruments	STMicroelectronics	Texas Instruments	STMicroelectronics	Texas Instruments	STMicroelectronics	STMicroelectronics
Amplifier Type	General Purpose	General Purpose	J-FET	General Purpose	General Purpose	General Purpose	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2	2
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate	1.2 V/µs	1.7 V/µs	16 V/µs	0.5 V/µs	2.2 V/µs	13 V/µs	3.5 V/µs	16 V/µs
Current - Input Bias	30 nA	150 nA	20 pA	200 nA	50 nA	100 nA	30 pA	20 pA
Voltage - Input Offset	2 mV	500 µV	3 mV	1 mV	1 mV	1 mV	3 mV	3 mV
Current - Supply	3.5 mA (x2)	2.5 mA (x2)	1.4 mA (x2)	3 mA (x2)	2.3 mA	3.5 mA (x2)	200 µA (x2)	1.4 mA
Voltage - Supply Span (Min)	44 V	10 V	6 V	36 V	4 V	4 V	6 V	6 V
Voltage - Supply Span (Max)	44 V	30 V	36 V	36 V	40 V	36 V	36 V	36 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 105°C	0°C ~ 70°C	-40°C ~ 105°C	-40°C ~ 125°C	0°C ~ 70°C	0°C ~ 70°C
Product Status	Obsolete	Last Time Buy	Active	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct General Purpose Substitutes (Recommended Priority):

The MC4558IDT manufactured by STMicroelectronics represents the primary substitute for the KA4558D. Both devices are general purpose dual-channel operational amplifiers in 8-SOIC packages with active product status. The MC4558IDT maintains compatibility with the KA4558D's core application requirements while offering extended operating temperature range (-40°C to 105°C) and ROHS3 compliance. Supply voltage compatibility spans 4 V to 40 V, encompassing the KA4558D's 44 V requirement within standard industrial ranges.

The TL3472QDRQ1 from Texas Instruments provides an alternative general purpose substitute with automotive-grade qualification (AEC-Q100) and extended temperature range (-40°C to 125°C). This device offers superior slew rate performance (13 V/µs versus 1.2 V/µs) and maintains the same supply current specification (3.5 mA per channel). The TL3472QDRQ1 is suitable for applications requiring enhanced thermal stability and automotive compliance.

The LM1458M/NOPB from Texas Instruments is a general purpose dual-channel amplifier with active product status and ROHS3 compliance. This device operates within the KA4558D's original temperature range (0°C to 70°C) and maintains similar supply current characteristics (3 mA per channel). However, the LM1458M/NOPB exhibits lower slew rate performance (0.5 V/µs), making it suitable only for applications not requiring high-speed signal processing.

J-FET Technology Alternatives:

The LF253DT from STMicroelectronics and TL072ACDT from STMicroelectronics represent J-FET amplifier alternatives. These devices feature significantly lower input bias current (20 pA versus 30 nA) and higher slew rate performance (16 V/µs). J-FET technology is appropriate for applications requiring ultra-low input bias current or high-impedance signal sources. Both devices maintain 8-SOIC packaging and surface mount compatibility.

The TL062CD from STMicroelectronics offers J-FET technology with minimal supply current consumption (200 µA per channel), making it suitable for battery-powered or power-constrained applications. However, the TL062CD exhibits lower slew rate (3.5 V/µs) and reduced gain bandwidth product (1 MHz).

Product Status Considerations:

The RC4558D from Texas Instruments carries "Last Time Buy" status, indicating limited future availability. While this device is a direct general purpose substitute with differential output capability, procurement should prioritize active-status alternatives such as MC4558IDT or TL3472QDRQ1 for long-term design support.

All recommended substitutes maintain REACH unaffected status and ECCN EAR99 classification, consistent with the KA4558D's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can the MC4558IDT directly replace the KA4558D without PCB modifications?

A: Yes. Both devices use identical 8-SOIC (0.154", 3.90mm Width) surface mount packages with the same pinout configuration. No PCB layout changes are required for direct substitution.

Q: What is the primary difference between general purpose and J-FET amplifier substitutes?

A: General purpose amplifiers (MC4558IDT, TL3472QDRQ1, LM1458M/NOPB) use bipolar junction transistor input stages, resulting in higher input bias current (50-200 nA) but lower cost. J-FET amplifiers (LF253DT, TL072ACDT, TL062CD) use field-effect transistor input stages, delivering ultra-low input bias current (20-30 pA) and higher slew rates, suitable for high-impedance signal sources and fast signal processing.

Q: Does the KA4558D's 44 V supply specification limit substitute selection?

A: The KA4558D specifies a fixed 44 V supply span, which is unusual. Most substitute parts specify minimum and maximum supply voltages (for example, MC4558IDT: 4 V to 40 V). Verify that your application's actual supply voltage falls within the substitute part's specified range. If your circuit operates at exactly 44 V, consult the substitute part's absolute maximum ratings to confirm safe operation.

Q: Why is the LM1458M/NOPB listed as a substitute despite its lower slew rate?

A: The LM1458M/NOPB is included as a substitute for applications where slew rate is not a critical performance parameter. Its 0.5 V/µs slew rate is suitable for low-frequency signal conditioning, audio processing below 20 kHz, and precision measurement applications. For high-speed applications, the MC4558IDT or TL3472QDRQ1 are preferred.

Q: What is the significance of AEC-Q100 qualification on the TL3472QDRQ1?

A: AEC-Q100 qualification indicates the device meets automotive industry reliability and quality standards. This certification is relevant only if your application requires automotive-grade components. For non-automotive applications, AEC-Q100 qualification provides no functional advantage but may increase component cost.

Q: Are there supply current differences that affect power consumption?

A: Yes. The TL062CD consumes only 200 µA per channel, compared to 3.5 mA for the KA4558D. The LF253DT and TL072ACDT consume 1.4 mA per channel. For battery-powered or power-constrained applications, the TL062CD provides significant power savings. For standard line-powered applications, supply current differences are negligible.

Q: Can the RC4558D be used despite its "Last Time Buy" status?

A: The RC4558D is functionally compatible and currently in stock (2,261 pieces). However, "Last Time Buy" status indicates the manufacturer will discontinue production. Use the RC4558D only if immediate procurement is required and long-term availability is not a concern. For new designs or long-term production, select active-status alternatives such as MC4558IDT or TL3472QDRQ1.

Q: What is the difference between the LF253DT and TL072ACDT?

A: Both are J-FET dual-channel amplifiers in 8-SOIC packages with identical electrical specifications (16 V/µs slew rate, 20 pA input bias current, 4 MHz gain bandwidth product). The primary difference is manufacturer: LF253DT is manufactured by STMicroelectronics and supplied in Cut Tape/Digi-Reel packaging, while TL072ACDT is also manufactured by STMicroelectronics but carries automotive-grade qualification (AEC-Q100). Select TL072ACDT for automotive applications; either device is suitable for general industrial use.

Q: Does moisture sensitivity level (MSL) affect component handling?

A: The KA4558D and all recommended substitutes carry MSL 1 (Unlimited) rating, except the NJM8801E which carries MSL 2 (1 Year). MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. MSL 2 requires storage in controlled humidity environments and has a one-year shelf life from the date of manufacture. For standard procurement and assembly processes, MSL 1 components are preferred.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message