PCA9510AD,112 Equivalent & Substitute Parts

Part Overview

The PCA9510AD,112 is a Buffer/ReDriver interface component manufactured by NXP USA Inc., designed for I2C hotswap applications with 1-channel 400kHz operation in an 8-SO surface mount package. This part is classified as Obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The component operates across a 2.7V to 5.5V supply range with minimal current draw of 6mA, suitable for low-power I2C bus extension and signal conditioning applications.

Key Parameters

Parameter	Value
Manufacturer	NXP USA Inc.
Category	Interface
Type	Buffer, ReDriver
Applications	I2C - Hotswap
Number of Channels	1
Data Rate (Max)	400kHz
Voltage - Supply	2.7V ~ 5.5V
Current - Supply	6mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the PCA9510AD,112 is determined by the following critical parameters: I2C interface compatibility (2-Wire Bus input/output), 400kHz data rate support, single-channel operation, surface mount packaging, and voltage supply range of 2.7V to 5.5V. Substitute parts are grouped into two categories:

Direct NXP Equivalent: PCA9510AD,118 maintains identical electrical specifications and packaging, differing only in product status (Active) and packaging format (Cut Tape & Digi-Reel).

Cross-Manufacturer Alternatives: Parts from Texas Instruments (TCA9509 series, P82B96 series) and Diodes Incorporated (PI6ULS5V9509UEX) provide I2C buffer/redriver functionality with compatible voltage ranges, operating temperatures, and I2C hotswap or general I2C applications. These alternatives may differ in channel count, package type, current consumption, and input capacitance but maintain functional equivalence for I2C bus extension.

Parameter Comparison

Part Number	Manufacturer	Channels	Data Rate (Max)	Voltage - Supply	Current - Supply	Package / Case	Mounting Type	Product Status
PCA9510AD,112	NXP USA Inc.	1	400kHz	2.7V ~ 5.5V	6mA	8-SOIC (0.154", 3.90mm Width)	Surface Mount	Obsolete
PCA9510AD,118	NXP USA Inc.	1	400kHz	2.7V ~ 5.5V	6mA	8-SOIC (0.154", 3.90mm Width)	Surface Mount	Active
TCA9509DGKR	Texas Instruments	1	400kHz	2.7V ~ 5.5V	3mA	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Surface Mount	Active
TCA9509RVHR	Texas Instruments	1	400kHz	2.7V ~ 5.5V	3mA	8-XFQFN Exposed Pad	Surface Mount	Active
PI6ULS5V9509UEX	Diodes Incorporated	1	400kHz	3V ~ 5.5V	3mA	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Surface Mount	Active
P82B96DGKR	Texas Instruments	2	400kHz	2V ~ 15V	4mA	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Surface Mount	Active
P82B96PWR	Texas Instruments	2	400kHz	2V ~ 15V	4mA	8-TSSOP (0.173", 4.40mm Width)	Surface Mount	Active
P82B96P	Texas Instruments	2	400kHz	2V ~ 15V	4mA	8-DIP (0.300", 7.62mm)	Through Hole	Active
P82B715P	Texas Instruments	1	—	4.5V ~ 12V	22mA	8-DIP (0.300", 7.62mm)	Through Hole	Active

Engineering Selection Recommendations

Primary Recommendation: PCA9510AD,118 is the direct equivalent replacement, maintaining identical electrical and mechanical specifications while offering Active product status and improved availability. This part requires no design modifications.

Secondary Recommendations: TCA9509DGKR and TCA9509RVHR from Texas Instruments provide equivalent 1-channel, 400kHz I2C buffer functionality with identical voltage supply range (2.7V ~ 5.5V) and lower current consumption (3mA). Both are ROHS3 compliant and Active products. Package differences (8-VSSOP and 8-X2QFN) require PCB layout verification.

Alternative Consideration: PI6ULS5V9509UEX from Diodes Incorporated offers 1-channel, 400kHz operation in a compact 8-MSOP package with reduced current draw (3mA). Voltage supply range is 3V ~ 5.5V, requiring verification that the minimum 3V threshold meets application requirements.

Not Recommended for Direct Substitution: P82B96 series parts (2-channel operation) and P82B715P (through-hole package, higher current consumption) introduce functional and packaging differences that require design re-evaluation.

All recommended substitutes maintain ROHS3 compliance and REACH Unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can PCA9510AD,118 be used as a direct replacement for PCA9510AD,112?

A: Yes. PCA9510AD,118 is electrically and mechanically identical to PCA9510AD,112, with the same 8-SOIC package, 400kHz data rate, 2.7V ~ 5.5V supply range, and 6mA current consumption. The primary difference is product status (Active vs. Obsolete) and packaging format availability.

Q: What is the key difference between TCA9509DGKR and TCA9509RVHR?

A: Both parts are 1-channel, 400kHz I2C buffers with identical electrical specifications. The difference is packaging: TCA9509DGKR uses 8-VSSOP (0.118" width), while TCA9509RVHR uses 8-X2QFN Exposed Pad (1.6x1.6mm). PCB layout and thermal management requirements differ between these packages.

Q: Why is PI6ULS5V9509UEX listed as a substitute if its minimum voltage is 3V instead of 2.7V?

A: PI6ULS5V9509UEX provides functional I2C buffer equivalence with 1-channel, 400kHz operation and lower current consumption (3mA). The 3V minimum supply voltage is a design constraint that must be verified against application requirements. If the system operates below 3V, this part is not suitable.

Q: Can P82B96 series parts replace the PCA9510AD,112?

A: P82B96 series parts provide I2C buffer functionality but differ in critical parameters: they feature 2 channels instead of 1, support a wider voltage range (2V ~ 15V), and consume less current (4mA). These differences require design re-evaluation and are not direct substitutes.

Q: What packaging options are available for 1-channel, 400kHz I2C buffer substitutes?

A: Surface mount options include 8-SOIC (PCA9510AD,118), 8-VSSOP (TCA9509DGKR), 8-MSOP (PI6ULS5V9509UEX), and 8-X2QFN (TCA9509RVHR). Through-hole options are limited to P82B715P (8-DIP), which has different electrical specifications and is not recommended for direct substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, consistent with the original PCA9510AD,112 specification.

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