Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74HC251; 74HCT251

Parametrics

Type number VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) Power dissipation considerations Tamb (°C) Package name
74HC251D 2.0 - 6.0 CMOS ± 5.2 18 low -40~125 SO16
74HC251PW 2.0 - 6.0 CMOS ± 5.2 18 low -40~125 TSSOP16
74HCT251D 4.5 - 5.5 TTL ± 4 22 low -40~125 SO16
74HCT251PW 4.5 - 5.5 TTL ± 4 22 low -40~125 TSSOP16

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC251D 74HC251D,653
(933713520653)
Active 74HC251D SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
Not available
74HC251PW 74HC251PW,118
(935188390118)
Active HC251 SOT403-1
TSSOP16
(SOT403-1)
SOT403-1 SSOP-TSSOP-VSO-WAVE
SOT403-1_118
74HCT251D 74HCT251D,653
(933713530653)
Active 74HCT251D SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
Not available
74HCT251PW 74HCT251PW,118
(935188380118)
Active HCT251 SOT403-1
TSSOP16
(SOT403-1)
SOT403-1 SSOP-TSSOP-VSO-WAVE
SOT403-1_118

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC251DB 74HC251DB,112
(935188650112)
Obsolete HC251 SOT338-1
SSOP16
(SOT338-1)
SOT338-1 SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Not available
74HC251DB,118
(935188650118)
Obsolete HC251 Not available
74HCT251D 74HCT251D,652
(933713530652)
Withdrawn / End-of-life 74HCT251D SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
SOT109-1_652
74HCT251DB 74HCT251DB,112
(935188640112)
Obsolete HCT251 SOT338-1
SSOP16
(SOT338-1)
SOT338-1 SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Not available
74HCT251DB,118
(935188640118)
Obsolete HCT251 Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC251D 74HC251D,653 74HC251D rohs rhf rhf
74HC251PW 74HC251PW,118 74HC251PW rohs rhf rhf
74HCT251D 74HCT251D,653 74HCT251D rohs rhf rhf
74HCT251PW 74HCT251PW,118 74HCT251PW rohs rhf rhf

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC251DB 74HC251DB,112 74HC251DB rohs rhf rhf
74HC251DB 74HC251DB,118 74HC251DB rohs rhf rhf
74HCT251D 74HCT251D,652 74HCT251D rohs rhf rhf
74HCT251DB 74HCT251DB,112 74HCT251DB rohs rhf rhf
74HCT251DB 74HCT251DB,118 74HCT251DB rohs rhf rhf
Quality and reliability disclaimer

Documentation (17)

File name Title Type Date
74HC_HCT251 8-input multiplexer; 3-state Data sheet 2024-03-14
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SO16_SOT109-1_mk plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body Marcom graphics 2017-01-28
SSOP16_SOT338-1_mk plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body Marcom graphics 2017-01-28
TSSOP16_SOT403-1_mk plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
SOT109-1 plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body Package information 2023-11-07
SOT338-1 plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body Package information 2022-06-20
SOT403-1 plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body Package information 2023-11-08
SO-SOJ-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
SSOP-TSSOP-VSO-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SO-SOJ-WAVE Footprint for wave soldering Wave soldering 2009-10-08
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22

Ordering, pricing & availability

Sample

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If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.