PACKAGE REFERENCESOT-23-5Confirm case, pinout and ordering suffix before purchase.

MANUFACTURER PART RECORD

SN74AHCT1G125DBVR

SN74AHCT1G125DBVR is a Texas Instruments single bus buffer gate with a 3-state output in the SOT-23-5 (DBV) package — for signal buffering and level restoration where one gate is needed exactly where the signal runs. Its TTL-compatible inputs accept logic from the lower-voltage CMOS families while it runs from the TTL supply class rail, bridging mixed-voltage designs without a dedicated translator. Selection advice: the DBVR code is the SOT-23 tape-and-reel orderable — for the smaller SC-70 package use the DCKR code; the AHCT family belongs to the TTL supply class with TTL inputs, so for wide-range CMOS-level operation consider the AHC or LVC single-gate families. Parameters verified against Texas Instruments documentation.

LogicSingle bus bufferSOT-23-5

Add to RFQ

MPN: SN74AHCT1G125DBVR
Manufacturer: Texas Instruments
Family: Single bus buffer
Package: SOT-23-5
Manufacturer channel coverage: Checked by RFQ
Data last checked: Commercial check required
Required order checks: Suffix, package, date code, lot, source and traceability

PROCUREMENT DATA

Identity and sourcing requirements.

MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Function: Single bus buffer gate with 3-state output · TTL-compatible inputs for 3.3 V-to-5 V level bridging
Supply: 4.5 V to 5.5 V recommended operating (§5.3) · ICC 1 µA typical / 10 µA maximum at VCC = 5.5 V, IO = 0 (§5.5)
Input thresholds: VIH 2 V minimum / VIL 0.8 V maximum (§5.3) — TTL levels, independent of the 5 V supply
Output drive: IOH −8 mA / IOL 8 mA recommended (§5.3) · VOH 3.8 V minimum over temperature at IOH = −8 mA and VOL 0.44 V maximum at IOL = 8 mA, VCC = 4.5 V (§5.5)
Propagation delay: 7 ns maximum over −40 °C to +125 °C · A to Y, CL = 15 pF, VCC = 5 V ± 0.5 V (§5.6). The 6 ns figure in the Features list is not the switching-table guarantee
Leakage: Input leakage ±1 µA maximum (VI swept 0 V to 5.5 V); off-state output current ±2.5 µA maximum at VCC = 5.5 V (§5.5)
Absolute maximum ratings: VCC and VI −0.5 V to +7 V, VO −0.5 V to VCC + 0.5 V and continuous output current ±25 mA are §5.1 absolute-maximum figures, not operating ranges
Order-code package: DBV package (SOT-23-5) · the addendum lists a rotating set of seven device markings for this orderable (Package Option Addendum)
Manufacturer packing: Tape and reel, 3,000 per reel (large T&R) · packing quantity, not stock or MOQ

Source: TI SN74AHCT1G125 data sheet SCLS378P (Rev. P, revised Mar 2024) · §5.3 Recommended Operating Conditions, §5.5/§5.6 Characteristics, §5.1 Absolute Maximum Ratings, Package Option Addendum · Reviewed 2026-10-30

Sourcing note

Confirm manufacturer, suffix, package, date code and traceability requirements before order.

Before you request a quote

Check the marking against the addendum set
This orderable carries one of seven assembly-site markings listed in the data sheet addendum. Verify the received marking is in that set and matches the reel label rather than expecting a single fixed code.
Confirm the enable polarity
The output enable is active-low. If the design assumed the active-high-enable sibling in the same family, the board will hold the bus off — confirm the OE sense before ordering.
Budget the 5 V rail
The inputs are TTL-level, but the device itself only runs from the 4.5 V to 5.5 V recommended supply range — it is not a 3.3 V-supply part.

Official documentation

Confirm the latest manufacturer revision and ordering suffix before design-in or purchase.

Open official datasheet Manufacturer product page

QUOTE WORKFLOW

Four checks before a commercial offer.

Identity

Exact MPN, manufacturer and suffix

Supply

Supplier type, quantity and freshness

Evidence

Lot, labels, photos and documents

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Logic records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

SN74AHCT1G125DBVR FAQ

What are the key specifications of SN74AHCT1G125DBVR?

From the verified technical profile: Function: Single bus buffer gate with 3-state output · TTL-compatible inputs for 3.3 V-to-5 V level bridging; Supply: 4.5 V to 5.5 V recommended operating (§5.3) · ICC 1 µA typical / 10 µA maximum at VCC = 5.5 V, IO = 0 (§5.5); Input thresholds: VIH 2 V minimum / VIL 0.8 V maximum (§5.3) — TTL levels, independent of the 5 V supply. These are the catalog-recorded values for SN74AHCT1G125DBVR — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.