Name: IS281
Brand: Isocom Components 2004 LTD
SKU: IS281
Availability: InStock
Rating: 5 (86 reviews)

IS281

For Reference Only

Part Number	IS281
Manufacturer	Isocom Components 2004 LTD
Description	OPTOCOUPLER TRANS MINI-FLAT
Datasheet	IS281 Specifications
Package	4-SOIC (0.173", 4.40mm)
ECAD
In Stock	73,956 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Jun 6 - Jun 11 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # IS281 (Optoisolators - Transistor, Photovoltaic Output) is manufactured by Isocom Components 2004 LTD and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For IS281 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add IS281 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of IS281.

IS281 Specifications

Manufacturer	Isocom Components 2004 LTD
Category	Isolators - Optoisolators - Transistor, Photovoltaic Output
Package	4-SOIC (0.173", 4.40mm)
ECAD
Series	-
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	50% @ 10mA
Current Transfer Ratio (Max)	600% @ 10mA
Turn On / Turn Off Time (Typ)	-
Rise / Fall Time (Typ)	5µs, 3µs
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	50mA
Voltage - Forward (Vf) (Typ)	1.2V
Current - DC Forward (If) (Max)	60mA
Vce Saturation (Max)	200mV
Operating Temperature	-55°C ~ 110°C
Mounting Type	Surface Mount
Package / Case	4-SOIC (0.173", 4.40mm)
Supplier Device Package	-

IS281 Reviews

Pauli*****shpande

April 6, 2023

★ ★ ★ ★ ★

Excellent service over extended period of time. Incredibly fast shipping, never any errors. Couldn't be more pleased.

Eli*****Konda

March 28, 2023

★ ★ ★ ★ ★

Great condition, super kind person, quick shipping! and great price too!

Joy *****lips

March 21, 2023

★ ★ ★ ★ ★

2nd time buying these - quite good. Very fast shipping

Jer***** Lane

March 19, 2023

★ ★ ★ ★ ★

I love this website, and get a quick response. Good experience! Good customer service.

Princ*****Dalton

March 6, 2023

★ ★ ★ ★ ★

Super easy search and order process. Lots of Shipping and Payment Options, you can always find the best way for the purchase.

Hec***** Bush

February 28, 2023

★ ★ ★ ★ ★

Absolutely the best source for wire, connectors, terminal strips, panel lights, etc. for model railroaders. Web site is the best in the business.

Jemma*****leton

February 26, 2023

★ ★ ★ ★ ★

Packing good, very happy with goods, Very fast delivery, good service. Thanks

Jas*****octor

February 25, 2023

★ ★ ★ ★ ★

Great seller, item shipped quickly and in great packaging. I will come next time .

Muham*****ampson

February 20, 2023

★ ★ ★ ★ ★

Item sent as described. Showed up quickly. Worked as it said and would recommend again.

Write a Review

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IS281 Packaging

IS281 FAQ

1. How to order IS281 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 IS281 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the IS281. All suppliers must pass our qualification reviews before they can publish their products including IS281 on Heisener; we pay more attention to the channels and quality of IS281 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the IS281 price and inventory displayed accurate?

The price and inventory of IS281 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 IS281?

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 IS281 we delivered, we will accept the replacement or return of the IS281 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 IS281.

(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 IS281 pin diagram, IS281 datasheet?

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

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IS281 Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number	Manufacturer	Description	Stock
IS281E D# V99:2348_22605480	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281D D# V99:2348_22605216	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281J D# V99:2348_22605488	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281GR D# V72:2272_18693726	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281BL D# V99:2348_22733970	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281-4GB D# V99:2348_22605508	Isocom Components	DC-IN 4-CH Transistor DC-OUT 16-Pin PDIP SMD T/R RoHS: Compliant	0
IS281 D# V72:2272_18697689	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281F D# V99:2348_22605482	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281GB D# V72:2272_18690041	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin SMD T/R RoHS: Compliant	0
IS281B D# V99:2348_22605473	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281A D# V99:2348_22605222	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281C D# V99:2348_22605476	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281-4 D# V72:2272_18693148	Isocom Components	DC-IN 4-CH Transistor DC-OUT 16-Pin DIP SMD T/R RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
IS281GB	Isocom Components	TransistorOptocouplers DC 1 3750Vrms SOP-4_P1.27 Optocouplers RoHS	27323
IS281GR	Isocom Components	SOP-4 Optocouplers RoHS	5656
IS281	Isocom Components	4-PIN Optocouplers RoHS	685
IS281-4	Isocom Components	TransistorOptocouplers DC 4 3750Vrms SOP-16_4.4mm Optocouplers RoHS	24641
IS281-4GB	Isocom Components	Optoisolator Transistor Output 3750Vrms 4 Channel	1716

Part Number	Manufacturer	Description	Stock
IS281E D# IS281ECT-ND	Isocom Components	OPTOCOUP TRANS 4SMD	713
IS281D D# IS281DCT-ND	Isocom Components	OPTOCOUP TRANS 4SMD	1359
IS281 D# IS281DKR-ND	Isocom Components	OPTOCOUPLER TRANS MINI-FLAT	2575
IS281GR D# IS281GRCT-ND	Isocom Components	OPTOCOUPLER TRANS MINI-FLAT	918
IS281F D# IS281FTR-ND	Isocom Components	OPTOCOUP TRANS 4SMD	1000
IS281B D# IS281BCT-ND	Isocom Components	OPTOCOUP TRANS 4SMD	1400
IS281A D# IS281ACT-ND	Isocom Components	OPTOCOUP TRANS 4SMD	1946
IS281GB D# IS281GBCT-ND	Isocom Components	OPTOCOUPLER TRANS MINI-FLAT	6094
IS281-4GB D# IS281-4GBDKR-ND	Isocom Components	OPTOISO 3.75KV 4CH TRANS	2433
IS281C D# IS281CCT-ND	Isocom Components	OPTOCOUP TRANS 4SMD	49
IS281-4 D# IS281-4CT-ND	Isocom Components	OPTOISO 3.75KV 4CH TRANS	4597

Part Number

Manufacturer

Description

Stock

IS281-4

ISOCOM

In stock shipping within 2days

2000

Part Number

Manufacturer

Description

Stock

IS281C

Isocom Components

IS281 Series 80 V 50 mA Surface Mount 1 Channel Optocoupler

RoHS: Compliant

pbFree: Yes

Part Number

Manufacturer

Description

Stock

PIS2812-100M-04

FASTRON GmBH

Part Number	Manufacturer	Description	Stock
IS281GR D# C719942	Isocom Components		5249
IS281 D# C722232	Isocom Components		685
IS281-4 D# C89878	Isocom Components		22851
IS281GB D# C89877	Isocom Components		26963
IS281-4GB D# C84569	Isocom Components		11959

Part Number	Manufacturer	Description	Stock
IS281GB	Isocom Components	OEM/CM Immediate delivery	30000
IS281-4	Isocom Components	OEM/CM Immediate delivery	89
IS281-4GB	Isocom Components	OEM/CM Immediate delivery	30000
IS281	Isocom Components	OEM/CM Immediate delivery	11769

Part Number	Manufacturer	Description	Stock
IS281-4GB	Isocom Components	Transistor Output Optocoupler,4-Element,3750VIsolation RoHS: Compliant	0
PIS2812-100M-04	FASTRON GmBH	General Purpose Inductor, 10uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
PIS2812-181M-04	FASTRON GmBH	General Purpose Inductor, 180uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281-4	Isocom Components	Transistor Output Optocoupler,4-Element,3750VIsolation RoHS: Compliant	0
PIS2812-560M-04	FASTRON GmBH	General Purpose Inductor, 56uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
PIS2812-1R0M-04	FASTRON GmBH	General Purpose Inductor, 1uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281D	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation RoHS: Compliant	0
IS281BL	Isocom Components	RoHS: Compliant	0
PIS2812-821M-04	FASTRON GmBH	General Purpose Inductor, 820uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281GB	Isocom Components	Photo Transistor RoHS: Compliant	0
PIS2816-100M-04	FASTRON GmBH	General Purpose Inductor, 10uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
PIS2812-221M-04	FASTRON GmBH	General Purpose Inductor, 220uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281GR	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation RoHS: Compliant	0
PIS2812-102M-04	FASTRON GmBH	General Purpose Inductor, 1000uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281	Isocom Components	Photo Transistor RoHS: Compliant	0
PIS2816-560M-04	FASTRON GmBH	General Purpose Inductor, 56uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
PIS2816-330M-04	FASTRON GmBH	General Purpose Inductor, 33uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
IS281A	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation RoHS: Compliant	0
PIS2816-391M-04	FASTRON GmBH	General Purpose Inductor, 390uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0
PIS2816-102M-04	FASTRON GmBH	General Purpose Inductor, 1000uH, 20%, 1Element,Ferrite-Core, SMD RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
PIS2816-391M-04 D# FAS000000001816	FASTRON GmBH	General Purpose Inductor, 390uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2812-181M-04 D# FAS000000001784	FASTRON GmBH	General Purpose Inductor, 180uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2812-560M-04 D# FAS000000001778	FASTRON GmBH	General Purpose Inductor, 56uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2812-1R0M-04 D# FAS000000001766	FASTRON GmBH	General Purpose Inductor, 1uH, 20%, 1Element,Ferrite-Core, SMD	0
IS281D D# ISOC00000000788	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation	0
IS281BL D# ISOC00000000787	Isocom Components		0
PIS2812-821M-04 D# FAS000000001792	FASTRON GmBH	General Purpose Inductor, 820uH, 20%, 1Element,Ferrite-Core, SMD	0
IS281-4 D# ISOC00000000784	Isocom Components	Transistor Output Optocoupler,4-Element,3750VIsolation	0
PIS2816-100M-04 D# FAS000000001797	FASTRON GmBH	General Purpose Inductor, 10uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2812-221M-04 D# FAS000000001785	FASTRON GmBH	General Purpose Inductor, 220uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2812-102M-04 D# FAS000000001793	FASTRON GmBH	General Purpose Inductor, 1000uH, 20%, 1Element,Ferrite-Core, SMD	0
IS281GR D# ISOC00000000790	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation	0
IS281-4GB D# ISOC00000001551	Isocom Components	Transistor Output Optocoupler,4-Element,3750VIsolation	0
IS281 D# ISOC00000000783	Isocom Components	Photo Transistor	0
IS281GB D# ISOC00000000789	Isocom Components	Photo Transistor	0
PIS2816-560M-04 D# FAS000000001806	FASTRON GmBH	General Purpose Inductor, 56uH, 20%, 1Element,Ferrite-Core, SMD	0
PIS2816-330M-04 D# FAS000000001803	FASTRON GmBH	General Purpose Inductor, 33uH, 20%, 1Element,Ferrite-Core, SMD	0
IS281A D# ISOC00000000786	Isocom Components	Transistor Output Optocoupler,1-Element,5300VIsolation	0
PIS2816-102M-04 D# FAS000000001821	FASTRON GmBH	General Purpose Inductor, 1000uH, 20%, 1Element,Ferrite-Core, SMD	0

Part Number

Manufacturer

Description

Stock

TTI-S28-1100-NAT

D# 37N489

pro-power

SLEEVING, INSULATING 0.46MM, NATURAL, 100FT, Sleeving / Tubing Type:Insulating, Sleeving Material:PTFE (Polytetrafluoroethylene), Sleeving Colour:Natural, Internal Diameter:0.46mm, Length - Metric:30.5m, Length - Imperial:100ft RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Spool

Part Number

Manufacturer

Description

Stock

IS281GB

D# NS-IS281GB

ISOCOM

OEM/CM ONLY

2598

IS281-4G

D# NS-IS281-4G

ISOCOM

OEM/CM ONLY

9852

Part Number	Manufacturer	Description	Stock
IS281GB D# 1611007	Isocom Components	Isocom, IS281GB DC Input NPN Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD, RL Min Qty: 1000 Container: Reel	1700
IS281C D# 1611005	Isocom Components	Isocom, IS281C DC Input NPN Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD, RL Min Qty: 1000 Container: Reel	1460
IS281-4 D# 1611009	Isocom Components	Isocom, IS281-4 DC Input NPN Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD, RL Min Qty: 2000 Container: Reel	0

Part Number

Manufacturer

Description

Stock

IS281-4GB

D# IRCOUP2630

Isocom Components

COUPLER SMD-16 100-600% 5mA 5V

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
HCIS28130GG	Advanced Interconnections Corp	OEM/CM ONLY	76
IS281A	Isocom Components	OEM/CM ONLY	1095
IS281	ISO	OEM/CM ONLY	5016
PIS2812151M04	FASTRON GmBH	OEM/CM ONLY	795
PIS2816151M04	FASTRON GmBH	OEM/CM ONLY	884
IS281F	Isocom Components	OEM/CM ONLY	1095
PIS2816150M04	FASTRON GmBH	OEM/CM ONLY	116
IS281B	Isocom Components	OEM/CM ONLY	1876
IS2814GB		OEM/CM ONLY	24603
IS281GB	Isocom Components	OEM/CM ONLY	49702
PIS2812102M04	FASTRON GmBH	OEM/CM ONLY	76
PIS2812680M04	FASTRON GmBH	OEM/CM ONLY	105
IS281GB/TLP281		OEM/CM ONLY	16661
IS2814GBIS		OEM/CM ONLY	2016
IS2814IS		OEM/CM ONLY	1768
PIS2812150M04	FASTRON GmBH	OEM/CM ONLY	653

Part Number	Manufacturer	Description	Stock
IS281	ISOCOM	IN stock Immediate delivery	11784
IS281-4	ISOCOM	IN stock Immediate delivery	84
IS281-4GB	ISOCOM	IN stock Immediate delivery	29985
IS281GB	ISOCOM	IN stock Immediate delivery	29985

Part Number	Manufacturer	Description	Stock
IS281-4	ISOCOM	shipping today	29996
IS281GB	ISOCOM	shipping today	704
IS281GB/TLP281GB	ISOCOM	shipping today	29996
IS281-4GB	ISOCOM	shipping today	63
IS281GB/TLP281	ISOCOM	shipping today	29996
IS281	ISOCOM	shipping today	29996

Part Number	Manufacturer	Description	Stock
IS281BL D# 53478146	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281-4GB D# 53477693	Isocom Components	DC-IN 4-CH Transistor DC-OUT 16-Pin PDIP SMD T/R RoHS: Compliant	0
IS281F D# 53478122	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281GR D# 53479125	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281B D# 53478136	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281 D# 30668186	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281A D# 53478112	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281GB D# 53478280	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin SMD T/R RoHS: Compliant	0
IS281C D# 53478187	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281-4 D# 53477696	Isocom Components	DC-IN 4-CH Transistor DC-OUT 16-Pin DIP SMD T/R RoHS: Compliant	0
IS281E D# 53478158	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0
IS281D D# 53478110	Isocom Components	DC-IN 1-CH Transistor DC-OUT 4-Pin T/R RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
IS281-4	Isocom Components	OPTOISO 3.75KV 4CH TRANS	5358
IS281-4GB	Isocom Components	OPTOISO 3.75KV 4CH TRANS / Current transfer ratio, Isolation voltage between input and output	142000
IS281GB	Isocom Components	OPTOCOUPLER TRANS MINI-FLAT	34000

Quick Inquiry

IS281

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS