AP22818BKBWT-7 Equivalent & Substitute Parts

Part Overview

The AP22818BKBWT-7 is an active USB Power Switch manufactured by Diodes Incorporated, classified as a Power Management Integrated Circuit (PMIC). This component functions as a 1:1 N/P-Channel power switch driver with high-side output configuration, designed for USB power distribution and load management applications. The device is currently in active production status with 3,902 units available in stock. Equivalent substitute parts are necessary when addressing supply chain constraints, inventory availability, or specific procurement requirements while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

AP22818BKBWT-7

Diodes IncorporatedIn Stock: 4005AP22818BKBWT-7 Datasheet

Current PartRFQ

AP22818BKAWT-7

Diodes IncorporatedIn Stock: 2966AP22818BKAWT-7 Datasheet

Parametric EquivalentRFQ

AP22818BKEWT-7

Diodes IncorporatedIn Stock: 3259AP22818BKEWT-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP22818BKBWT-7 has two parametric equivalents within the Diodes Incorporated AP22818 product family: AP22818BKAWT-7 and AP22818BKEWT-7. These parts are classified as direct substitutes based on the following criteria:

Substitution-Determining Parameters:

• Switch Type: USB Switch (identical across all variants)
• Output Configuration: High Side (identical across all variants)
• Output Type: N/P-Channel (identical across all variants)
• Number of Outputs: 1 (identical across all variants)
• Ratio - Input:Output: 1:1 (identical across all variants)
• Current - Output (Max): 2A (identical across all variants)
• Voltage - Load: 2.7V ~ 5.5V (identical across all variants)
• Rds On (Typ): 75mOhm (identical across all variants)
• Operating Temperature: -40°C ~ 85°C (TA) (identical across all variants)
• Package / Case: SOT-23-5 Thin, TSOT-23-5 (identical across all variants)
• Mounting Type: Surface Mount (identical across all variants)
• Fault Protection: Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, UVLO (identical across all variants)
• Features: Load Discharge, Status Flag (identical across all variants)
• Interface: On/Off (identical across all variants)
• Input Type: Inverting (identical across all variants)
• RoHS Status: ROHS3 Compliant (identical across all variants)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical across all variants)

All three parts share the same base product number (AP22818) and differ only in internal variant designations (BKBWT, BKAWT, BKEWT), which do not affect electrical performance or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AP22818BKBWT-7, AP22818BKAWT-7, and AP22818BKEWT-7—are functionally equivalent and interchangeable for USB power switch applications. Selection between these variants should be based on the following factors:

Product Status & Compliance: All three parts maintain active production status with Diodes Incorporated and carry ROHS3 compliance certification, ensuring regulatory alignment for current and future manufacturing requirements. All parts are REACH Unaffected and classified under ECCN EAR99.

Inventory Availability: The AP22818BKBWT-7 offers the highest inventory level at 3,902 units, followed by AP22818BKEWT-7 at 3,201 units, and AP22818BKAWT-7 at 2,951 units. Selection based on inventory availability is appropriate for high-volume procurement or time-sensitive applications.

Mechanical & Electrical Compatibility: All three variants utilize identical SOT-23-5 Thin (TSOT-23-5) packaging with surface mount configuration, ensuring direct PCB footprint compatibility without design modification. Electrical performance parameters, including 2A maximum output current, 75mOhm typical on-resistance, and 2.7V to 5.5V load voltage range, are identical across all variants.

Moisture Sensitivity: All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Frequently Asked Questions (FAQ)

Q: Are AP22818BKBWT-7, AP22818BKAWT-7, and AP22818BKEWT-7 pin-for-pin compatible?

A: Yes. All three parts utilize the SOT-23-5 Thin (TSOT-23-5) package with identical pinout configuration. Direct substitution on existing PCB layouts is supported without modification.

Q: What is the difference between the three part numbers?

A: The three part numbers differ only in their internal variant designations (BKB, BKA, BKE). All electrical specifications, mechanical dimensions, and functional characteristics are identical. The variant designation does not affect performance or compatibility.

Q: Can I substitute AP22818BKAWT-7 for AP22818BKBWT-7 in production?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. Substitution is supported for production applications without design changes or functional impact.

Q: Are all three parts ROHS3 compliant?

A: Yes. AP22818BKBWT-7, AP22818BKAWT-7, and AP22818BKEWT-7 all carry ROHS3 compliance certification.

Q: What is the maximum output current for these USB power switches?

A: The maximum output current is 2A for all three variants. This specification is identical across AP22818BKBWT-7, AP22818BKAWT-7, and AP22818BKEWT-7.

Q: Do these parts require external supply voltage?

A: No. The Voltage - Supply (Vcc/Vdd) parameter is listed as "Not Required" for all three variants, indicating integrated supply management.

Q: What operating temperature range is supported?

A: All three parts operate across -40°C to 85°C (TA), providing consistent thermal performance across industrial and commercial temperature ranges.

Q: Are these parts available in packaging other than Tape & Reel?

A: The provided specifications indicate Tape & Reel (TR) packaging for all three variants. Alternative packaging formats are not documented in the current parameter set.

Q: What fault protection features are included?

A: All three parts include Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, and UVLO (Under Voltage Lock Out) protection mechanisms.

Q: Is the on-resistance specification identical across all variants?

A: Yes. The typical on-resistance (Rds On) is 75mOhm for AP22818BKBWT-7, AP22818BKAWT-7, and AP22818BKEWT-7.