ULN2064B STMicroelectronics Integrated Circuit (Dual-In-Line Packages) In Stock
The ULN2064B is a 4-channel Darlington transistor array with built-in flyback diodes and base resistors, supporting collector currents up to 1.75 A and collector-emitter voltages up to 35 V per channel. Available from authorized distributors worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- ULN2064B Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4864(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ULN2064B?
- 4-channel Darlington array with integrated flyback diodes for inductive load protection
- Supports up to 1.75 A collector current and 35 V collector-emitter voltage per channel
- Logic-level compatible inputs with built-in base resistors for direct microcontroller interfacing
What is ULN2064B used for?
The ULN2064B is well-suited for driving relays, solenoids, stepper motors, and other inductive loads requiring moderate current and voltage. Its 4-channel configuration makes it ideal for multi-output control circuits in industrial automation, home appliances, and embedded systems. The integrated diodes eliminate the need for external protection components, simplifying PCB design.
What are the specifications of ULN2064B?
| Factory Lead Time | 10Weeks |
| YTEOL | 4 |
| Additional Feature | LOGIC LEVEL COMPATIBLE |
| Collector Current-Max (IC) | 1.75A |
| Collector-Emitter Voltage-Max | 35V |
| Configuration | 4 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e3 |
| Number of Elements | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Polarity/Channel Type | NPN |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | DUAL |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| VCEsat-Max | 1.4V |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China, Malaysia |
Where can I find the ULN2064B datasheet?
ULN2064B Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for ULN2064B?
Compatible alternatives and drop-in replacements for ULN2064B:
Frequently Asked Questions
What is the maximum collector current the ULN2064B can handle per channel?
Each of the 4 Darlington channels in the ULN2064B supports a maximum collector current of 1.75 A, making it suitable for driving moderate-power loads like relays and solenoids at up to 35 V collector-emitter voltage.
Can the ULN2064B be driven directly from a 3.3 V or 5 V microcontroller GPIO pin?
Yes, the ULN2064B is logic-level compatible and can be driven from 3.3 V or 5 V GPIO outputs. The built-in base resistors simplify interfacing without requiring additional external resistors, reducing component count in the design.
What type of load protection does the ULN2064B provide?
The ULN2064B integrates built-in flyback diodes on all 4 channels, providing protection against voltage spikes generated when switching inductive loads such as relays, motors, and solenoids operating at up to 35 V.
Which package does the ULN2064B use and how does that affect PCB layout?
The ULN2064B comes in a 16-pin DIP package (R-PDIP-T16), which is through-hole and easy to use for prototyping or hand-soldering. The 16-pin footprint accommodates 4 independent channels, enabling compact multi-channel designs with minimal board area per channel.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.7500 | $2.75 |
| 4+ | $2.5257 | $10.10 |
| 8+ | $2.4994 | $19.99 |
| 16+ | $2.4864 | $39.78 |
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