Cross-Reference Match Found
Looking for the ADI LT1521CST-5#TRPBF? Here's Zephyr's better solution.
The UTC 78D05G-AA3-R is a spec-equivalent, franchise-authorized alternative to the ADI LT1521CST-5#TRPBF — in stock and shipping from Zephyr.
100% match · engine-verified In stock now 24h RFQ
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ADI
5V Positive Fixed SOT-223-4 Voltage Regulators - Linear, Low
LT1521CST-5#TRPBF
5V Positive Fixed SOT-223-4 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators RoHS
AvailabilityVaries
Lead timeVaries by channel
Unit price (100)—
Zephyr's recommendation
AUTHORIZED78D05G-AA3-R
Linear Voltage Regulator IC Positive Fixed 1 Output 500mA SOT-223-4
Availability3,480 in stock
Lead timeShips from stock
Unit price (100)$0.0947
Side-by-side
Parametric Comparison
This match was verified by our cross-reference engine on form, fit, and function — the per-attribute breakdown for this product family is being finalized and will appear here. The 78D05G-AA3-R specs below and its datasheet give you the full picture today.
Why switch
Same Specs. Better Terms.
Lower CostFranchise-direct pricing — typically below the brand-name part for equivalent specs.
In Stock NowReal inventory with live counts — no multi-month lead times.
Verified CrossSpec-by-spec compatibility computed from structured attributes, not guessed.
Franchise AuthorizedDirect from UTC. Full traceability, no gray market.
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The 78D05G-AA3-R Also Replaces
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