Name: SL1021B420R
Brand: Littelfuse Inc.
SKU: SL1021B420R
Availability: InStock
Rating: 5 (179 reviews)

SL1021B420R

For Reference Only

Part Number	SL1021B420R
Manufacturer	Littelfuse Inc.
Description	GDT 420V 20KA THROUGH HOLE
Datasheet	SL1021B420R Datasheet SL1021B420R Specifications
Package	Axial Cylinder, 3 Lead (Radial Bend)
ECAD
In Stock	3,438 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Jun 14 - Jun 19 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # SL1021B420R (Gas Discharge Tube Arresters (GDT)) is manufactured by Littelfuse Inc. 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 SL1021B420R specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add SL1021B420R with quantity into BOM. Heisener.com does NOT require any registration to request a quote of SL1021B420R.

SL1021B420R Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - Gas Discharge Tube Arresters (GDT)
Package	Axial Cylinder, 3 Lead (Radial Bend)
ECAD
Series	SL1021B
Voltage - DC Spark Over (Nom)	420V
Impulse Discharge Current (8/20µs)	20000A (20kA)
Tolerance	-
Number of Poles	3
Fail Short	No
Mounting Type	Through Hole
Package / Case	Axial Cylinder, 3 Lead (Radial Bend)

SL1021B420R Datasheet

SL1021B420R Reviews

Dougl*****hneider

April 3, 2023

★ ★ ★ ★ ★

You guys and girls are fantastic! The selection is fantastic and service is great.

Sylvi*****rrero

April 2, 2023

★ ★ ★ ★ ★

I wish I had come across Heisener first, no one could help me for 2 days. You are now saved into the TOP of my favorites web list. Thank you very much.

Char*****hite

April 2, 2023

★ ★ ★ ★ ★

Excellent, high quality product at a reasonable price. Timely delivery. Highly recommend product and vendor.

No*****Virk

March 28, 2023

★ ★ ★ ★ ★

Worked wonderfully. Went through the instructions to the tea to make sure it was done correctly.

Lilia*****liver

March 20, 2023

★ ★ ★ ★ ★

I was able to make my list of needed parts and use suggested products. The big plus is the fact they show inventory quantity.

Elian*****chael

March 5, 2023

★ ★ ★ ★ ★

Great communication. A pleasure to do business with.

Jorg*****rton

March 4, 2023

★ ★ ★ ★ ★

Didn’t need so many but it was cheap. I did have to solder extra wire on each end to make fit better but exactly you need of your looking for this particular mod.

Oti*****ama

March 3, 2023

★ ★ ★ ★ ★

Best organized online supplier, excellent service personnel.

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SL1021B420R Packaging

SL1021B420R FAQ

1. How to order SL1021B420R 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 SL1021B420R is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the SL1021B420R. All suppliers must pass our qualification reviews before they can publish their products including SL1021B420R on Heisener; we pay more attention to the channels and quality of SL1021B420R products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the SL1021B420R price and inventory displayed accurate?

The price and inventory of SL1021B420R 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 SL1021B420R?

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 SL1021B420R we delivered, we will accept the replacement or return of the SL1021B420R 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 SL1021B420R.

(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 SL1021B420R pin diagram, SL1021B420R datasheet?

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

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SL1021B420R 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
SL1021B420RG	Littelfuse Inc	TRAY	0
SL1021B420RS	Littelfuse Inc	GAS TUBE GDT 10KA 420V RAD +FS	0
SL1021B420R	Littelfuse Inc	GAS TUBE GDT 10KA 420V RADIAL	0
SL1021B420RF	Littelfuse Inc	GAS TUBE GDT 10KA 420V RAD +FS	0

Part Number	Manufacturer	Description	Stock
SL1021B420RS D# SL1021B420RS-ND	Littelfuse Inc	GDT 420V 20KA 3 POLE TH	0
SL1021B420R D# SL1021B420R-ND	Littelfuse Inc	GDT 420V 20KA 3 POLE TH	0
SL1021B420RF D# SL1021B420RF-ND	Littelfuse Inc	GDT 420V 20KA 3 POLE TH	980
SL1021B420RG D# SL1021B420RG-ND	Littelfuse Inc	GDT 420V 20KA 3 POLE TH	0

Part Number

Manufacturer

Description

Stock

SL1021B420R

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

SL1021B420RF

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

Part Number

Manufacturer

Description

Stock

SL1021B420R

D# 26K7309

Littelfuse Inc

TRAY / GDT / GP 3T B420V RADIAL ROHS COMPLIANT: YES

RoHS: Compliant

Min Qty: 1000

Container: Bulk

SL1021B420RF

D# 26K7310

Littelfuse Inc

TRAY / GDT / GP 3T B420V RADIAL + FS ROHS COMPLIANT: YES

RoHS: Compliant

Min Qty: 1000

Container: Bulk

Part Number	Manufacturer	Description	Stock
SL1021B420RG D# NS-SL1021B420RG	Littelfuse Inc	OEM/CM ONLY	5815
SL1021B420RS D# NS-SL1021B420RS	Littelfuse Inc	OEM/CM ONLY	5258
SL1021B420R D# NS-SL1021B420R	Littelfuse Inc	OEM/CM ONLY	6676
SL1021B420RF D# NS-SL1021B420RF	Littelfuse Inc	OEM/CM ONLY	7852

Part Number

Manufacturer

Description

Stock

SL1021B420RF

Littelfuse Inc

OEM/CM ONLY

516

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SL1021B420R

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