KA1458 Equivalent & Substitute Parts

Part Overview

The KA1458 is a general-purpose operational amplifier integrated circuit manufactured by onsemi, configured as a dual-channel amplifier in an 8-DIP through-hole package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing system support and new design implementations. The KA1458 operates across a supply voltage span of 36 V with a slew rate of 0.5 V/µs and is suitable for applications requiring general-purpose amplification in the 0°C to 70°C operating temperature range.

Substiute Parts

KA1458

onsemiIn Stock: 1234KA1458 Datasheet

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LF353P

Texas InstrumentsIn Stock: 5963LF353P Datasheet

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LM1458N/NOPB

Texas InstrumentsIn Stock: 22732LM1458N/NOPB Datasheet

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MC1458P

Texas InstrumentsIn Stock: 1251MC1458P Datasheet

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NJM4556AD

Nisshinbo Micro Devices Inc.In Stock: 46235NJM4556AD Datasheet

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TL3472CP

Texas InstrumentsIn Stock: 1410TL3472CP Datasheet

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TS358CD C3G

Taiwan Semiconductor CorporationIn Stock: 1036TS358CD C3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the KA1458 is determined by the following critical parameters:

Primary Substitution Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 2
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Operating Temperature Range: 0°C ~ 70°C (minimum requirement)
• Voltage - Supply Span: Minimum 36 V capability

Secondary Compatibility Factors:

• Slew Rate: 0.5 V/µs or greater
• Current - Input Bias: 80 nA or lower
• Voltage - Input Offset: 2 mV or lower
• Current - Supply: Compatible with system power budget
• Current - Output / Channel: 20 mA or greater

Substitute parts are grouped into two categories: Direct Equivalents (matching general-purpose amplifier type with identical package and thermal specifications) and Enhanced Alternatives (offering improved electrical performance while maintaining package compatibility and functional equivalence).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent - Highest Compatibility:

The LM1458N/NOPB (Texas Instruments) is the primary direct equivalent to the KA1458. Both devices are general-purpose dual-channel amplifiers with identical slew rate (0.5 V/µs), matching 8-DIP package dimensions, and equivalent operating temperature range (0°C ~ 70°C). The LM1458N/NOPB is ROHS3 compliant and carries Active product status, ensuring long-term availability and supply chain continuity. This part is suitable for direct socket replacement in legacy systems.

The MC1458P (Texas Instruments) provides an alternative direct equivalent with identical slew rate and amplifier type. It maintains the same input bias current (80 nA) as the KA1458 and offers ROHS3 compliance with Active product status. The MC1458P operates within a reduced supply voltage span (10 V to 30 V), which may limit applicability in systems requiring the full 36 V capability.

Enhanced Performance Alternatives:

The TL3472CP (Texas Instruments) offers improved slew rate (13 V/µs) and higher gain bandwidth product (4 MHz) while maintaining general-purpose amplifier functionality, 8-DIP package compatibility, and Active product status. This device supports the full 36 V supply span and is ROHS3 compliant. The TL3472CP is suitable for applications requiring faster signal response without package redesign.

The TS358CD C3G (Taiwan Semiconductor Corporation) provides the lowest supply current (1.5 mA) among all substitutes, making it advantageous for power-constrained applications. It maintains general-purpose amplifier type and 8-DIP package compatibility with ROHS3 compliance and Active product status. The TS358CD C3G operates across an extended temperature range (-20°C ~ 85°C) and supports supply voltages from 3 V to 32 V.

The NJM4556AD (Nisshinbo Micro Devices Inc.) delivers superior electrical performance with the lowest input offset voltage (500 µV), highest output current per channel (70 mA), and fastest slew rate (3 V/µs) among all substitutes. However, this device carries "Not For New Designs" product status, limiting its use to legacy system maintenance only.

The LF353P (Texas Instruments) is a J-FET amplifier offering extremely low input bias current (50 pA) and high slew rate (13 V/µs). This device is suitable for applications requiring minimal input current and fast transient response. It is ROHS3 compliant with Active product status and supports the full 36 V supply span.

Compliance and Regulatory Considerations:

All recommended substitutes maintain REACH Unaffected status, matching the KA1458 regulatory profile. For new designs and long-term system support, selection should prioritize parts with Active product status: LM1458N/NOPB, MC1458P, TL3472CP, TS358CD C3G, and LF353P. The NJM4556AD, while technically superior, is restricted to legacy system maintenance due to its "Not For New Designs" classification.

Frequently Asked Questions (FAQ)

Q: Can the LM1458N/NOPB directly replace the KA1458 in existing circuit boards?

A: Yes. The LM1458N/NOPB is a direct functional equivalent with identical slew rate (0.5 V/µs), matching 8-DIP package dimensions (0.300", 7.62mm), and equivalent operating temperature range (0°C ~ 70°C). Both devices are dual-channel general-purpose amplifiers with 36 V supply span capability. No circuit modifications are required for socket replacement.

Q: What is the primary difference between the KA1458 and the LF353P?

A: The LF353P is a J-FET amplifier, whereas the KA1458 is a general-purpose amplifier. The LF353P offers significantly lower input bias current (50 pA versus 80 nA) and higher slew rate (13 V/µs versus 0.5 V/µs), making it suitable for applications requiring minimal input current and faster signal response. Both devices share the same 8-DIP package and operating temperature range. The LF353P is appropriate for applications where input impedance and transient response are critical design parameters.

Q: Is the TS358CD C3G compatible with the KA1458 in terms of package dimensions?

A: The TS358CD C3G uses an 8-DIP package with dimensions of 0.309" (7.87mm), compared to the KA1458 standard 8-DIP package of 0.300" (7.62mm). This represents a 0.009" (0.25mm) difference in package width. For most through-hole socket applications, this dimensional variation is within standard PCB tolerance and does not prevent physical installation. However, verification of socket specifications is recommended for applications with tight mechanical constraints.

Q: Which substitute part offers the lowest power consumption?

A: The TS358CD C3G provides the lowest supply current at 1.5 mA, compared to the KA1458 at 2.3 mA (x2 Channels). This represents approximately 35% reduction in supply current, making the TS358CD C3G suitable for battery-powered or power-constrained applications. The TS358CD C3G maintains general-purpose amplifier functionality and 8-DIP package compatibility.

Q: Can the NJM4556AD be used in new product designs?

A: The NJM4556AD carries a "Not For New Designs" product status classification. This device is restricted to legacy system maintenance and repair applications only. For new product designs, selection should be limited to parts with Active product status: LM1458N/NOPB, MC1458P, TL3472CP, TS358CD C3G, or LF353P.

Q: What is the significance of the 36 V supply span specification for the KA1458?

A: The KA1458 specifies a supply span of 36 V minimum and 36 V maximum, indicating a fixed supply voltage requirement of 36 V. Substitute parts must support this voltage level. The LM1458N/NOPB, LF353P, TL3472CP, and NJM4556AD all support 36 V maximum supply voltage. The MC1458P supports up to 30 V, and the TS358CD C3G supports up to 32 V, which may be limiting factors in systems requiring the full 36 V specification.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry RoHS compliance certifications. The LM1458N/NOPB, MC1458P, LF353P, TL3472CP, and TS358CD C3G are ROHS3 compliant. The NJM4556AD is RoHS compliant. The KA1458 does not specify RoHS status. For applications requiring RoHS compliance, any of the listed substitutes are suitable.

Q: What is the difference between the MC1458P and the LM1458N/NOPB?

A: Both devices are general-purpose dual-channel amplifiers with identical slew rate (0.5 V/µs) and input bias current (80 nA). The primary difference is supply voltage range: the LM1458N/NOPB supports 36 V, while the MC1458P supports 10 V to 30 V maximum. For applications requiring 36 V operation, the LM1458N/NOPB is the appropriate selection. Both devices are ROHS3 compliant with Active product status.

Q: Which substitute part offers the fastest slew rate?

A: The LF353P and TL3472CP both offer 13 V/µs slew rate, representing a 26-fold improvement over the KA1458 at 0.5 V/µs. The NJM4556AD provides 3 V/µs slew rate, a 6-fold improvement. Higher slew rate enables faster signal response and is beneficial for applications with high-frequency or fast transient requirements. Selection between LF353P and TL3472CP depends on input bias current requirements: LF353P offers 50 pA, while TL3472CP offers 100 nA.