ZDS1009TA Equivalent & Substitute Parts

Part Overview

The ZDS1009TA is a current mirror regulator IC manufactured by Diodes Incorporated, designed for high-side current sensing applications. This Surface Mount device in SOT-223-8 packaging delivers 1A output current and operates across a wide temperature range of -55°C to 150°C. The product is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and production continuity.

Substiute Parts

ZDS1009TA

Diodes IncorporatedIn Stock: 1564ZDS1009TA Datasheet

Current PartRFQ

ZXCT1009T8TA

Diodes IncorporatedIn Stock: 58999ZXCT1009T8TA Datasheet

DirectRFQ

ADL5315ACPZ-R7

Analog Devices Inc.In Stock: 8309ADL5315ACPZ-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ZDS1009TA is determined by the following critical parameters:

• Function: Current Mirror or Current Monitor (functionally equivalent sensing devices)
• Sensing Method: High-Side current sensing capability
• Package / Case: SOT-223-8 or compatible footprint
• Mounting Type: Surface Mount
• RoHS & Compliance: ROHS3 Compliant, REACH Unaffected
• Moisture Sensitivity: MSL 1 (Unlimited)

The identified substitutes maintain these core electrical and mechanical characteristics, ensuring direct replacement capability in existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

ZXCT1009T8TA (Diodes Incorporated): This substitute shares the same manufacturer and identical SOT-223-8 package footprint as the ZDS1009TA. Both devices are ROHS3 compliant with MSL 1 rating. The ZXCT1009T8TA is currently active in production with substantial inventory availability (58,988 pcs). This part is the primary substitute for direct PCB replacement applications.

ADL5315ACPZ-R7 (Analog Devices Inc.): This manufacturer-recommended alternative provides current mirror functionality with high-side sensing capability. It maintains ROHS3 compliance and MSL 1 rating. The device uses an 8-LFCSP-VD package, requiring PCB layout modification. This option is suitable for new designs or applications where package change is acceptable. Active production status ensures long-term availability.

Both substitutes are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original ZDS1009TA.

Frequently Asked Questions (FAQ)

Q: Can ZXCT1009T8TA replace ZDS1009TA in existing designs without PCB modification?

A: Yes. Both devices use the SOT-223-8 package with identical pinout compatibility, enabling direct PCB replacement without layout changes.

Q: What are the key differences between ZXCT1009T8TA and ZDS1009TA?

A: The ZXCT1009T8TA is a current monitor with ±1% accuracy and operates at 9.98mA output, compared to the ZDS1009TA current mirror at 1A output. Input voltage range differs: ZXCT1009T8TA operates 2.5V ~ 20V versus ZDS1009TA at 120V maximum. Operating temperature range is narrower for ZXCT1009T8TA (-40°C ~ 85°C vs. -55°C ~ 150°C).

Q: Does ADL5315ACPZ-R7 require PCB redesign?

A: Yes. The ADL5315ACPZ-R7 uses an 8-LFCSP-VD (3x2) package, differing from the SOT-223-8 footprint. PCB layout modification is necessary for implementation.

Q: Are all three parts RoHS compliant?

A: Yes. ZDS1009TA, ZXCT1009T8TA, and ADL5315ACPZ-R7 are all ROHS3 compliant with MSL 1 (Unlimited) rating.

Q: Which substitute has the longest operating temperature range?

A: The ZDS1009TA operates -55°C ~ 150°C. Both substitutes operate -40°C ~ 85°C, a narrower range. Verify temperature requirements for your application before substitution.

Q: What is the current inventory status of these substitutes?

A: ZXCT1009T8TA has 58,988 pcs in stock. ADL5315ACPZ-R7 has 8,223 pcs in stock. Both are actively produced and available for procurement.