AP2121AK-1.5TRE1 is available for purchase but is not normally stocked.
Available Substitutes:

Parametric Equivalent

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Diodes Incorporated
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Unit Price: $1.40000
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Parametric Equivalent

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SOT-23-5
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
SOT-23-5
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

AP2121AK-1.5TRE1

DigiKey Part Number
AP2121AK-1.5TRE1DI-ND - Tape & Reel (TR)
Manufacturer
Diodes Incorporated
Manufacturer Product Number
AP2121AK-1.5TRE1
Description
IC REG LINEAR 1.5V 200MA SOT23-5
Customer Reference
Detailed Description
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA SOT-23-5
Datasheet
 Datasheet
Product Attributes
Type
Description
Select All
Category
Mfr
Diodes Incorporated
Series
-
Packaging
Tape & Reel (TR)
Part Status
Last Time Buy
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
6V
Voltage - Output (Min/Fixed)
1.5V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.6V @ 200mA
Current - Output
200mA
Current - Quiescent (Iq)
50 µA
PSRR
70dB (1kHz)
Control Features
Enable
Protection Features
Over Current
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Supplier Device Package
SOT-23-5
Base Product Number
AP2121
Product Questions and Answers

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Last Time Buy
Last Time Buy Date: 16/12/2025
Quantity
All prices are in HKD
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$1.69626$5,088.78
6,000$1.65026$9,901.56
9,000$1.62724$14,645.16
15,000$1.60171$24,025.65
21,000$1.58679$33,322.59
30,000$1.57245$47,173.50
Manufacturers Standard Package