Littelfuse SP721APP
TVSS, Diode, +/-3A, Sup-V 2 to 30V, SMD, 10.16mmLx7.11mmWx4.95mmH, SP721 Series
Mfr. Part #: SP721APP / RS Stock #: 70184274
Image may be a representation. See specs for product details.
Price
Qty.
Standard Price
1
$2.42
5
$2.23
10
$2.13
100
$1.94
250
$1.82
500
$1.57
Additional Inventory
Bulk pricing available
Product Specifications
Product Attribute
Attribute Value
Search
Capacitance
3 pF
Configuration
Array
ESD Protection
Yes
Maximum Operating Temperature
150 °C
Mounting Type
Through Hole
Package Type
PDIP-8
Primary Type
Transient Voltage Surge Suppressor
Product Header
Transient Voltage Suppression Diode Array
Supply Voltage
2-30 V
Surge Current
+/-3 A
Type
Diode
Overview
The SP721 is an array of SCR/Diode bipolar structures for ESD and over-voltage protection to sensitive input circuits. The SP721 has 2 protection SCR/Diode structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Over voltage protection is from the IN (Pins 1-3 and Pins 5-7) to V+ or V-.
The SCR structures are designed for fast triggering at a threshold of one +VBE diode threshold above V+ (Pin 8) or a -VBE diode threshold below V- (Pin 4). From an IN input, a clamp to V+ is activated if a transient pulse causes the input to be increased to a voltage level greater than one VBE above V+. A similar clamp to V- is activated if a negative pulse, one VBE less than V-, is applied to an IN input.
The SCR structures are designed for fast triggering at a threshold of one +VBE diode threshold above V+ (Pin 8) or a -VBE diode threshold below V- (Pin 4). From an IN input, a clamp to V+ is activated if a transient pulse causes the input to be increased to a voltage level greater than one VBE above V+. A similar clamp to V- is activated if a negative pulse, one VBE less than V-, is applied to an IN input.
