Name: AD8554AR
Brand: Analog Devices Inc.
SKU: AD8554AR
Availability: InStock
Rating: 5 (107 reviews)

AD8554AR

Pour Référence Seulement

Référence	AD8554AR
Fabricant	Analog Devices Inc.
Description	IC OPAMP CHOPPER 1.5MHZ 14SOIC
Fiche technique	AD8554AR Fiche technique
paquet	14-SOIC (0.154", 3.90mm Width)
ECAD
En stock	5 952 piece(s)
Prix unitaire	Request a Quote
Délai de mise en œuvre	Expédition possible immédiatement
Temps de livraison estimé	nov. 24 - nov. 29 (Choisissez l'expédition accélérée)
Demander un Devis

Méthodes de paiement
Services de livraison

Nous offrons AD8554AR pour prix compétitif sur le marché mondial, s'il vous plaît envoyez-nous une demande de quota pour les prix. Merci!
Pour traiter votre demande de devis, s'il vous plaît ajouter AD8554AR avec la quantité dans la nomenclature. Heisener.com Ne nécessite pas de toute inscription pour demander un devis de AD8554AR.

Spécifications AD8554AR

Fabricant	Analog Devices Inc.
Catégorie	Circuits intégrés (CI) - Linéaire - Amplificateurs - Instrumentation, amplificateurs opérationnels, amplificateurs séparateurs
paquet	14-SOIC (0.154", 3.90mm Width)
ECAD
Séries	-
Type d'amplificateur	Zero-Drift
Nombre de circuits	4
Le type de sortie	Rail-to-Rail
Vitesse de balayage	0.4 V/µs
Produit de bande passante de gain	1.5MHz
-3db bande passante	-
Courant - Biais d'entrée	10pA
Voltage - Offset Offset	1mV
Offre actuelle	850µA
Courant - Sortie / Canal	30mA
Tension - Alimentation, Simple / Double (±)	2.7 V ~ 5.5 V
Température de fonctionnement	-40°C ~ 125°C
Type de montage	Surface Mount
Paquet / cas	14-SOIC (0.154", 3.90mm Width)
Package de périphérique fournisseur	14-SOIC

AD8554AR fiche technique

AD8554AR Packaging

AD8554AR FAQ

1. How to order AD8554AR on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that AD8554AR is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the AD8554AR. All suppliers must pass our qualification reviews before they can publish their products including AD8554AR on Heisener; we pay more attention to the channels and quality of AD8554AR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the AD8554AR price and inventory displayed accurate?

The price and inventory of AD8554AR fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of AD8554AR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD8554AR we delivered, we will accept the replacement or return of the AD8554AR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of AD8554AR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as AD8554AR pin diagram, AD8554AR datasheet?

If you need any after-sales service, please do not hesitate to contact us.

AD8554AR Produits Connexes

653V7775C2T	CTS-Frequency Controls, OSC LVDS SMD, 6-SMD, No Lead, -	Vue
UUP1H010MCL1GS	Nichicon, CAP ALUM 1UF 20% 50V SMD, Radial, Can - SMD, -	Vue
UVY1E222MHD	Nichicon, CAP ALUM 2200UF 20% 25V RADIAL, Radial, Can, -	Vue
1N4731CPE3/TR8	Microsemi Corporation, DIODE ZENER 4.3V 1W DO204AL, DO-204AL, DO-41, Axial, -	Vue
139A-403C	Visual Communications Company - VCC, LENS WATERTIGHT CLEAR TRANSP, -, -	Vue
0UCB020.XP	Littelfuse Inc., CIR BRKR 20A 12VDC AUTO RESET, -, -	Vue
44L45-05-1-02S	Grayhill Inc., SWITCH KEYLOCK 2POS SPDT 5A 115V, -, -	Vue
PWR221T-30-1500F	Bourns Inc., RES 150 OHM 30W 1% TO220, TO-220-2, -	Vue
CMF5547K000BHRE	Vishay Dale, RES 47K OHM 1/2W .1% AXIAL, Axial, -	Vue
D38999/24WB98HE-LC	Amphenol Aerospace Operations, CONN RCPT HSNG MALE 6POS PNL MNT, -, -	Vue
DJT10E21-41HC-LC	TE Connectivity Deutsch Connectors, CONN RCPT HSNG MALE 41POS PNL MT, -, -	Vue
RCC19DRYN-S13	Sullins Connector Solutions, CONN EDGE DUAL FMALE 38POS 0.100, -, -	Vue

AD8554AR Des garanties

Garanties de service

Nous garantissons la satisfaction du client à 100%.

Notre équipe de vente expérimentée et notre équipe d'assistance technique recourent à nos services pour satisfaire tous nos clients.

Garantie de qualité

Nous fournissons une garantie de 90 jours.

Si les articles que vous avez reçus n'étaient pas de qualité parfaite, nous serions responsables de votre remboursement ou de votre remplacement, mais les articles doivent être retournés dans leur état d'origine.

Chaînes d'approvisionnement mondiales - Ressources de distributeurs fiables et agréées

Référence	Fabricant	Description	Stock
AD8554ARZ-REEL D# V36:1790_06214866	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin SOIC N T/R RoHS: Compliant	0
AD8554ARZ D# E54:1762_00113743	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin SOIC N Tube RoHS: Compliant	0
AD8554ARZ-REEL7 D# V72:2272_06214868	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin SOIC N T/R RoHS: Compliant	0
AD8554ARUZ-REEL D# V72:2272_06214864	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin TSSOP T/R RoHS: Compliant	0
AD8554ARUZ D# E54:1762_00113741	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin TSSOP Tube RoHS: Compliant	0

Référence	Fabricant	Description	Stock
AD8554AR	Analog Devices Inc		103
AD8554ARZ	Analog Devices Inc		14
AD8554ARUZ	Analog Devices Inc		185

Référence	Fabricant	Description	Stock
AD8554ARUZ-REEL	Analog Devices Inc	OP AMP QUAD GP R-R I/O 5V 14TSSOP - Tape and Reel	0
AD8554AR-REEL	Analog Devices Inc	IC OPAMP CHOPPER 1.5MHZ 14SOIC	0
AD8554AR	Analog Devices Inc	OP AMP, QUAD Z-DRIFT RRI/O, 8554	189
AD8554AR-REEL7	Analog Devices Inc	IC OPAMP CHOPPER 1.5MHZ 14SOIC	0
AD8554ARZ	Analog Devices Inc	OP AMP, QUAD Z-DRIFT RRI/O, 8554	189
AD8554ARZ-REEL7	Analog Devices Inc	OP AMP QUAD GP R-R I/O 5V 14SOIC N - Tape and Reel	2000
AD8554ARZ-REEL	Analog Devices Inc	OP AMP QUAD GP R-R I/O 5V 14SOIC N - Tape and Reel	0
AD8554ARUZ	Analog Devices Inc	SP Amp Zero Drift Amplifier Quad R-R I/O 5V 14-Pin TSSOP Tube	372

Référence

Fabricant

Description

Stock

AD8554ARZ

D# C1S103100186914

Analog Devices Inc

SP Amp Zero Drift Amplifier Quad R-R I/O 5V 14-Pin SOIC N Tube

RoHS: Compliant

pbFree: Yes

Min Qty: 1

Container: Bulk

AD8554ARUZ

D# C1S103100155163

Analog Devices Inc

SP Amp Zero Drift Amplifier Quad R-R I/O 5V 14-Pin TSSOP Tube

RoHS: Compliant

pbFree: Yes

Min Qty: 1

Container: Tube

2533

Référence

Fabricant

Description

Stock

AD8554ARZ

Analog Devices Inc

Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14

RoHS: Compliant

Référence	Fabricant	Description	Stock
AD8554AR-REEL7 D# AD8554AR-REEL7-ND	Analog Devices Inc	IC OPAMP ZERO-DRIFT 4CIRC 14SOIC	0
AD8554ARZ D# AD8554ARZ-ND	Analog Devices Inc	IC OPAMP ZERO-DRIFT 4CIRC 14SOIC	4041
AD8554ARZ-REEL D# AD8554ARZ-REELTR-ND	Analog Devices Inc	IC OPAMP ZERO-DRIFT 4CIRC 14SOIC	0
AD8554ARUZ D# AD8554ARUZ-ND	Analog Devices Inc	IC OPAMP ZER-DRIFT 4CIRC 14TSSOP	1519
AD8554ARU-REEL D# 2156-AD8554ARU-REEL-ND	Rochester Electronics LLC	IC CHOPPER 4 CIRCUIT 14TSSOP	102431
AD8554ARU D# 2156-AD8554ARU-AD-ND	Rochester Electronics LLC	IC CHOPPER 4 CIRCUIT 14TSSOP	9
AD8554ARUZ-REEL D# AD8554ARUZ-REELCT-ND	Analog Devices Inc	IC OPAMP ZER-DRIFT 4CIRC 14TSSOP	283
AD8554ARZ-REEL7 D# AD8554ARZ-REEL7CT-ND	Analog Devices Inc	IC OPAMP ZERO-DRIFT 4CIRC 14SOIC	4012
AD8554AR-REEL D# AD8554AR-REEL-ND	Analog Devices Inc	IC OPAMP ZERO-DRIFT 4CIRC 14SOIC	0
AD8554AR D# 2156-AD8554AR-AD-ND	Rochester Electronics LLC	IC ZERO-DRIFT 4 CIRCUIT 14SOIC	374

Référence	Fabricant	Description	Stock
AD8554AR D# AD8554AR	Analog Devices Inc	Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct	3056
AD8554ARZ D# AD8554ARZ	Analog Devices Inc	Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct	3920
AD8554ARUZ D# AD8554ARUZ	Analog Devices Inc	Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct	2848

Référence	Fabricant	Description	Stock
AD8554ARUZ-REEL	Analog Devices Inc	In stock shipping within 2days	1000
AD8554AR-REEL	Analog Devices Inc	In stock shipping within 2days	1000
AD8554ARU	Analog Devices Inc	In stock shipping within 2days	1000
AD8554ARUZ	Analog Devices Inc	In stock shipping within 2days	1000
AD8554ARZ-REEL	Analog Devices Inc	In stock shipping within 2days	1000
AD8554AR	Analog Devices Inc	In stock shipping within 2days	1000
AD8554ARU-REEL	Analog Devices Inc	In stock shipping within 2days	1000
AD8554ARZ	Analog Devices Inc	In stock shipping within 2days	1000

Référence

Fabricant

Description

Stock

AD8554ARUZ

D# 2305610

Analog Devices Inc

IC, OP AMP, 1.5MHZ, 0.4V/US, 14TSSOP

RoHS: Compliant

Min Qty: 1

Container: Each

AD8554ARZ

D# 9604286

Analog Devices Inc

OP AMP, QUAD Z-DRIFT RRI/O, 8554

RoHS: Compliant

Min Qty: 1

Container: Each

Référence	Fabricant	Description	Stock
AD8554AR		OEM/CM QUOTES ONLY \| NO BROKERS	6613
AD8554ARUREEL	Rochester Electronics LLC	OEM/CM QUOTES ONLY \| NO BROKERS	135465
AD8554ARZ	Analog Devices Inc	OEM/CM QUOTES ONLY \| NO BROKERS	4116
AD8554ARU		OEM/CM QUOTES ONLY \| NO BROKERS	6613
AD8554ARZREEL7	Analog Devices Inc	OEM/CM QUOTES ONLY \| NO BROKERS	7935
AD8554ARUZREEL	ON Semiconductor	OEM/CM QUOTES ONLY \| NO BROKERS	4020
AD8554ARUZ		OEM/CM QUOTES ONLY \| NO BROKERS	2936
AD8554ARZREEL	Analog Devices Inc	OEM/CM QUOTES ONLY \| NO BROKERS	1984

Référence	Fabricant	Description	Stock
AD8554ARU	Analog Devices Inc	OEM/CM ONLY	1098
AD8554ARZND	Analog Devices Inc	OEM/CM ONLY	1848
AD8554ARZLEADFREE	Analog Devices Inc	OEM/CM ONLY	1847
AD8554ARREEL	Analog Devices Inc	OEM/CM ONLY	1836
AD8554ARZ1	Analog Devices Inc	OEM/CM ONLY	1846
AD8554ARZREEL7	Analog Devices Inc	OEM/CM ONLY	6080
AD8554ARUZND	Analog Devices Inc	OEM/CM ONLY	1843
AD8554ARUZREEL	Analog Devices Inc	OEM/CM ONLY	568
AD8554ARM	Analog Devices Inc	OEM/CM ONLY	1835
AD8554AR	Analog Devices Inc	OEM/CM ONLY	309
AD8554ARZREEL	Analog Devices Inc	OEM/CM ONLY	1849
AD8554ARZ	Analog Devices Inc	OEM/CM ONLY	942
AD8554ARREEL7	Analog Devices Inc	OEM/CM ONLY	958
ANAAD8554ARUZ	ADI Electronics Inc	OEM/CM ONLY	598
AD8554ARUZ	Analog Devices Inc	OEM/CM ONLY	689

Référence

Fabricant

Description

Stock

AD8554ARZ

Analog Devices Inc

In Stock

AD8554ARUZ

Analog Devices Inc

In Stock

185

Référence

Fabricant

Description

Stock

AD8554AR

ADI Electronics Inc

OEM/CM Immediate delivery

Référence	Fabricant	Description	Stock
AD8554ARZ D# 584-AD8554ARZ	Analog Devices Inc	Precision Amplifiers QUAD PRECISION RAIL-RAIL CHOPPER OP AMP RoHS: Compliant	2165
AD8554ARZ-REEL7 D# 584-AD8554ARZ-R7	Analog Devices Inc	Precision Amplifiers QUAD PRECISION RAIL-RAIL CHOPPER OP AMP RoHS: Compliant	1382
AD8554ARUZ-REEL D# 584-AD8554ARUZ-R	Analog Devices Inc	Precision Amplifiers QUAD PRECISION RAIL-RAIL CHOPPER OP AMP RoHS: Compliant	1332
AD8554ARUZ D# 584-AD8554ARUZ	Analog Devices Inc	Precision Amplifiers QUAD PRECISION RAIL-RAIL CHOPPER OP AMP RoHS: Compliant	769

Référence

Fabricant

Description

Stock

AD8554ARZ

D# 31M4551

Analog Devices Inc

Operational Amplifier, QUAD, 1.5 MHz, 4, 0.5 V/ s, 2.7V to 5.5V, SOIC, 14 RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

Référence	Fabricant	Description	Stock
AD8554ARZ-REEL7 D# NS-AD8554ARZ-REEL7	ADI	OEM/CM ONLY	2306
AD8554AR-REEL7 D# NS-AD8554AR-REEL7	Analog Devices Inc	OEM/CM ONLY	8431
AD8554AR-REEL D# NS-AD8554AR-REEL	Analog Devices Inc	OEM/CM ONLY	2237
AD8554ARZ-REEL D# NS-AD8554ARZ-REEL	Multiple	OEM/CM ONLY	1497
AD8554AR D# NS-AD8554AR	Analog Devices Inc	OEM/CM ONLY	8992
AD8554ARZ D# NS-AD8554ARZ	Analog Devices Inc	OEM/CM ONLY	4879
AD8554ARU-REEL D# NS-AD8554ARU-REEL	Multiple	OEM/CM ONLY	2533
AD8554ARUZ D# NS-AD8554ARUZ	Analog Devices Inc	OEM/CM ONLY	1325
AD8554ARU D# NS-AD8554ARU	Analog Devices Inc	OEM/CM ONLY	9052
AD8554ARUZ-REEL D# NS-AD8554ARUZ-REEL	Multiple	OEM/CM ONLY	4116

Référence

Fabricant

Description

Stock

AD8554ARZ

Analog Devices Inc

IC OPAMP QUAD R-R 0-DRIFT 14SOIC

AD8554AR

Analog Devices Inc

Operational Amplifier, Quad AMP, CMOS, 14 Pin, Plastic, SOP

200

Référence	Fabricant	Description	Stock
AD8554ARU D# AD8554ARU	Analog Devices Inc	Semiconductor	68
AD8554ARUZ D# AD8554ARUZ	Analog Devices Inc	Semiconductor	68
AD8554AR D# AD8554AR	Analog Devices Inc	Inventory R	27

Référence	Fabricant	Description	Stock
AD8554ARUZ D# 7097187P	Analog Devices Inc	AD8554ARUZ Analog Devices, Op Amp, RRIO, 1.5MHz, 3 V, 14-Pin TSSOP, TU Min Qty: 1 Container: Tube	326
AD8554ARZ-REEL7 D# 7591345	Analog Devices Inc	AD8554ARZ-REEL7 Analog Devices, Zero Drift, Op Amp, RRIO, 1.5MHz, 6 V, 14-Pin SOIC, EA Min Qty: 1 Container: Bulk	114
AD8554ARZ D# 0412995P	Analog Devices Inc	AD8554ARZ Analog Devices, Op Amp, RRIO, 1.5MHz, 3 V, 14-Pin SOIC, TU Min Qty: 1 Container: Tube	0

Référence

Fabricant

Description

Stock

AD8554ARUZ

D# AD8554ARUZ

Analog Devices Inc

AMPLIFIER - OP AMPS

RoHS: Compliant

AD8554ARZ

D# AD8554ARZ

Analog Devices Inc

AMPLIFIER - OP AMPS

RoHS: Compliant

Référence	Fabricant	Description	Stock
AD8554ARZ	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Compliant	14
AD8554ARUZ	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Compliant	273
AD8554ARU-REEL	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Not Compliant	102431
AD8554ARU	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Not Compliant	9
AD8554ARUZ-REEL	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Compliant	183
AD8554AR	Analog Devices Inc	Operational Amplifier, 4 Func, 10uV Offset-Max, CMOS, PDSO14 RoHS: Not Compliant	374

Référence	Fabricant	Description	Stock
AD8554ARUZ	Analog Devices Inc	OEM/CM ONLY	1378
AD8554ARUREEL	Analog Devices Inc	OEM/CM ONLY	470
AD8554ARU	Analog Devices Inc	OEM/CM ONLY	100
AD8554AR	Analog Devices Inc	OEM/CM ONLY	132
AD8554ARUZREEL	Analog Devices Inc	OEM/CM ONLY	3051
AD8554ARZ	Analog Devices Inc	OEM/CM ONLY	1567
AD8554ARZREEL	Analog Devices Inc	OEM/CM ONLY	1026

Référence

Fabricant

Description

Stock

AD8554AR

Analog Devices Inc

IN stock Immediate delivery

Référence

Fabricant

Description

Stock

AD8554ARUZ

Analog Devices Inc

Référence	Fabricant	Description	Stock
AD8554AR	Analog Devices Inc	shipping today	990
AD8554AR-REEL	Analog Devices Inc	shipping today	990
AD8554ARZ	Analog Devices Inc	shipping today	3196
AD8554ARZ-REEL	Analog Devices Inc	shipping today	990
AD8554ARUZ	Analog Devices Inc	shipping today	546
AD8554ARU-REEL	Analog Devices Inc	shipping today	990
AD8554ARU	Analog Devices Inc	shipping today	990
AD8554ARUZ-REEL	Analog Devices Inc	shipping today	990
AD8554ARZ-REEL7	Analog Devices Inc	shipping today	2338

Référence	Fabricant	Description	Stock
AD8554ARZ D# 53286912	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin SOIC N Tube RoHS: Compliant	0
AD8554ARZ-REEL7 D# 53366883	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin SOIC N T/R RoHS: Compliant	0
AD8554ARUZ D# 53676417	Analog Devices Inc	Op Amp Quad Auto Zero/Chopper R-R I/O 5V 14-Pin TSSOP Tube RoHS: Compliant	0

Référence	Fabricant	Description	Stock
AD8554AR	mfr	RFQ	2264
AD8554ARZ	mfr	RFQ	9535
AD8554ARUZ	Analog Devices Inc	RFQ	12574

Référence

Fabricant

Description

Stock

AD8554ARUZ

Analog Devices Inc

IC OPAMP CHOPPER 1.5MHZ 14TSSOP

1354

AD8554ARZ-REEL7

Analog Devices Inc

IC OPAMP CHOPPER 1.5MHZ 14SOIC

1500

Référence

Fabricant

Description

Stock

AD8554ARUZ

D# 2305610

Analog Devices Inc

IC, OP AMP, 1.5MHZ, 0.4V/US, 14TSSOP

RoHS: Compliant

Min Qty: 1

Container: Each

AD8554ARZ

D# 9604286

Analog Devices Inc

OP AMP, QUAD Z-DRIFT RRI/O, 8554

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

AD8554AR

Qualité certifiée

L'engagement de Heisener en matière de qualité a façonné nos processus d'approvisionnement, de test, d'expédition et à chaque étape intermédiaire. Cette fondation est à la base de chaque composant que nous vendons.

ISO9001:2015, ICAS, IAF, UKAS