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ST ULN2803A
Eight Darlington Arrays
Brands: Stmicroelectronics
Mfr.Part #: ULN2803A
Datasheet: ULN2803A Datasheet (PDF)
Package/Case: PDIP 18
RoHS Status:
Stock Condition: 8574 pcs, New Original
Product Type: Darlington Transistors
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 5 | $0.183 | $0.915 |
| 50 | $0.149 | $7.450 |
| 150 | $0.134 | $20.100 |
| 500 | $0.116 | $58.000 |
| 3000 | $0.105 | $315.000 |
| 6000 | $0.100 | $600.000 |
In Stock:8574 PCS
ULN2803A General Description
The ULN2801A, ULN2802A, ULN2803A and ULN2804A each contain eight Darlington transistors with common emitters and integral suppression diodes for inductive loads. Each Darlington features a peak load current rating of 600 mA (500 mA continuous) and can withstand at least 50 V in the OFF state. Outputs may be paralleled for higher current capability.Four versions are available to simplify interfacing to standard logic families: the ULN2801A is designed for general purpose applications with a current limit resistor; the ULN2802A has a 10.5 kΩ input resistor and Zener for 14-25 V PMOS; the ULN2803A has a 2.7 kΩ input resistor for 5 V TTL and CMOS; the ULN2804A has a 10.5 kΩ input resistor for 6-15 V CMOS.All types are supplied in an 18-lead plastic DIP with a copper lead form and feature the convenient input-opposite-output pinout to simplify board layout.
Features
- Eight Darlington transistors with common emitters
- Output current to 500 mA
- Output voltage to 50 V
- Integral suppression diodes
- Versions for all popular logic families
- Output can be paralleled
- Inputs pinned opposite outputs to simplify board layout
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Operating Temp Min Celsius | -20.0 | Operating Temp Max Celsius | 85.0 |
| ECCN US | EAR99 | ECCN EU | NEC |
| Packing Type | Tube | RoHs compliant | Ecopack2 |
| Grade | Industrial |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The ULN2803A is a popular octal, high-voltage, medium-current Darlington transistor array integrated circuit. It is commonly used to interface low-level logic with higher-power devices such as relays, motors, and solenoids. The chip provides 8 Darlington transistor pairs with integrated suppression diodes. It offers high voltage and current amplification capabilities, making it ideal for driving loads directly from microcontrollers or other low-power control signal sources.
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Equivalent
Some equivalent products of the ULN2803A chip include ULN2802A, ULN2804A, ULN2805A, and ULN2807A. -
Features
The ULN2803A is a high voltage, high current Darlington transistor array. It features 8 Darlington pairs with common-cathode clamp diodes for inductive load protection. It has input/output common-cathode voltage ratings of 50V and collector current ratings of 500mA. It is commonly used for driving relays, lamps, and stepper motors in automotive and industrial applications. -
Pinout
The ULN2803A is a high-voltage and high-current Darlington transistor array. It consists of 18 pins, with each pin corresponding to an individual Darlington transistor. The main function of the ULN2803A is to drive high-power devices such as relays, solenoids, and lamps using low-power signals from microcontrollers or digital logic circuits. -
Manufacturer
The ULN2803A is manufactured by Texas Instruments. Texas Instruments is a semiconductor manufacturing company that designs and produces a wide range of electronic components, including integrated circuits, processors, microcontrollers, and more. -
Application Field
The ULN2803A is commonly used as an interface between low-level logic circuitry and circuits requiring higher current and voltage capabilities, such as controlling relays, solenoids, LEDs, motors, and other high-power devices. -
Package
The ULN2803A chip comes in a package type called PDIP (Plastic Dual In-Line Package). The form is DIP (Dual In-Line Package). The size of the package is 16 pins.
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