Resistor Array / Network
Resistor
Several resistors of the same value in one package sharing a common pin or arranged as isolated pairs. Saves board space and guarantees the resistors match each other closely.
Schematic symbol
Resistor
How resistor array / network appears in a circuit diagram.
Types & variants
Key specs
Resistance
ΩAll elements share one value, e.g. 8×10 kΩ.
Configuration
Bussed (one common pin) vs isolated (independent pairs).
Power per element
WUsually 1/16–1/8 W each — lower than a discrete resistor.
Matching tolerance
%Elements track each other tightly, often within 0.1%.
Markings
SIP packages print the value and configuration code; pin 1 (the common pin on bussed types) is marked with a dot or bar.
Standard values
Common bussed values: 1 kΩ, 4.7 kΩ, 10 kΩ in 5, 9 or 10-pin SIPs — 10 kΩ bussed is the classic pull-up pack.
How to choose
Bussed for pull-ups/pull-downs on a data bus; isolated when each line needs an independent series resistor. Check per-element power rating.
Pinout & package
SIP: pin 1 = common (bussed). DIP/SMD arrays: pairs across the package. Not polarised, but pin 1 matters on bussed types.
Example circuits
- Pull-up pack for an 8-bit bus or keypad
- Series resistors for a 7-segment display
- Termination network for a parallel bus
Common failures
One element going open while the rest still work — confusing to debug. Overheating if several elements dissipate at once.
How to test
Resistance mode from the common pin to each element pin (bussed) or across each pair (isolated) — every element should read the marked value.
Substitutes
Individual discrete resistors of the same value — bulkier but electrically identical.