Package / Case 
12-SIP Exposed Tab
Mounting Type 
Through Hole
Surface Mount 
having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.
NO
Supplier Device Package 
12-SIP
Number of Terminals 
12
Mfr 
Allegro MicroSystems
Product Status 
Active
Package 
Bulk
Current-Collector (Ic) (Max) 
4A
Package Description 
PLASTIC, SIP-12
Package Style 
FLANGE MOUNT
Moisture Sensitivity Levels 
NOT SPECIFIED
Package Body Material 
PLASTIC/EPOXY
Operating Temperature-Min 
-20 °C
Supply Voltage-Nom 
5 V
Reflow Temperature-Max (s) 
NOT SPECIFIED
Operating Temperature-Max 
85 °C
Manufacturer Part Number 
UDN2879W-2
Turn-on Time 
1 µs
Package Shape 
RECTANGULAR
Manufacturer 
Rochester Electronics LLC
Part Life Cycle Code 
Active
Turn-off Time 
1.5 µs
Ihs Manufacturer 
ROCHESTER ELECTRONICS LLC
Risk Rank 
5.75
Part Package Code 
SFM
Series 
-
Operating Temperature 
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-20°C ~ 85°C (TA)
JESD-609 Code 
e0
Pbfree Code 
No
Terminal Finish 
TIN LEAD
Technology 
BIPOLAR
Terminal Position 
SINGLE
Terminal Form 
Occurring at or forming the end of a series, succession, or the like; closing; concluding.
THROUGH-HOLE
Peak Reflow Temperature (Cel) 
NOT SPECIFIED
Number of Functions 
4
Reach Compliance Code 
unknown
Pin Count 
a count of all of the component leads (or pins)
12
JESD-30 Code 
R-PSFM-T12
Qualification Status 
An indicator of formal certification of qualifications.
COMMERCIAL
Temperature Grade 
Temperature grades represent a tire's resistance to heat and its ability to dissipate heat when tested under controlled laboratory test conditions.
OTHER
Power - Max 
-
Transistor Type 
4 NPN Darlington (Quad)
DC Current Gain (hFE) (Min) @ Ic, Vce 
-
Current - Collector Cutoff (Max) 
100μA
Vce Saturation (Max) @ Ib, Ic 
-
Voltage - Collector Emitter Breakdown (Max) 
80V
Interface IC Type 
BUFFER OR INVERTER BASED PERIPHERAL DRIVER
Frequency - Transition 
-
Output Peak Current Limit-Nom 
4 A
Built-in Protections 
TRANSIENT
Output Current Flow Direction 
SINK