Name: SMF40A
Brand: Littelfuse Inc.
SKU: SMF40A
Availability: InStock
Rating: 5 (115 reviews)

SMF40A

For Reference Only

Part Number	SMF40A
Manufacturer	Littelfuse Inc.
Description	TVS DIODE 40VWM 64.5VC SOD123F
Datasheet	SMF40A Datasheet SMF40A Specifications
Package	SOD-123F
ECAD
In Stock	1,704,000 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	Jun 8 - Jun 13 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # SMF40A (TVS - Diodes) 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 SMF40A specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add SMF40A with quantity into BOM. Heisener.com does NOT require any registration to request a quote of SMF40A.

SMF40A Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - TVS - Diodes
Package	SOD-123F
ECAD
Series	SMF
Type	Zener
Unidirectional Channels	1
Bidirectional Channels	-
Voltage - Reverse Standoff (Typ)	40V
Voltage - Breakdown (Min)	44.4V
Voltage - Clamping (Max) @ Ipp	64.5V
Current - Peak Pulse (10/1000µs)	3.1A
Power - Peak Pulse	200W
Power Line Protection	No
Applications	General Purpose
Capacitance @ Frequency	-
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	SOD-123F
Supplier Device Package	SOD-123F

SMF40A Datasheet

SMF40A Reviews

Cha*****rake

April 1, 2023

★ ★ ★ ★ ★

Most of the reviews for this product were positive so I took a chance.

Emme***** Riley

March 19, 2023

★ ★ ★ ★ ★

Items arrived well pakaged, reasonable postage and as described. Top seller

Arabel*****ckwell

March 17, 2023

★ ★ ★ ★ ★

High level customer service, and quick response.

Oti*****iaz

March 17, 2023

★ ★ ★ ★ ★

The fastest shipping I've seen yet

Zoe*****erra

March 9, 2023

★ ★ ★ ★ ★

I've placed many orders from Heisener . I have never had an error with any order, the order has always went out the same day, and the items are always well packaged.

Dala*****organ

March 3, 2023

★ ★ ★ ★ ★

Replaced a diode in my distortion pedal. Sounds different (lower growl) but in a good way...LOL!

Write a Review

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Thanks for Your Review!

SMF40A Packaging

SMF40A FAQ

1. How to order SMF40A 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 SMF40A is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the SMF40A. All suppliers must pass our qualification reviews before they can publish their products including SMF40A on Heisener; we pay more attention to the channels and quality of SMF40A products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the SMF40A price and inventory displayed accurate?

The price and inventory of SMF40A 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 SMF40A?

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 SMF40A we delivered, we will accept the replacement or return of the SMF40A 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 SMF40A.

(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 SMF40A pin diagram, SMF40A datasheet?

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

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SMF40A 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
SMF40A-TP D# V36:1790_06843883	Micro Commercial Components	TVS Diode Single Uni-Dir 40V 200W 2-Pin SOD-123FL T/R	0
SMF40A-E3-18 D# V36:1790_18315229	Vishay Intertechnologies	ESD Suppressor Diode TVS Uni-Dir 40V 2-Pin SMF T/R	0
SMF40A-HE3-08 D# V36:1790_17730831	Vishay Intertechnologies	ESD Suppressor Diode TVS Uni-Dir 40V Automotive 2-Pin SMF T/R	0
SMF40A D# V72:2272_06471250	Littelfuse Inc	Diode TVS Single Uni-Dir 40V 200W 2-Pin SOD-123F T/R	0
SMF40A-T13 D# V36:1790_06471251	Littelfuse Inc	TVS Diode Single Uni-Dir 40V 200W 2-Pin SOD-123F T/R	0
SMF40A RVG D# V36:1790_18761582	Taiwan Semiconductor	SMF40A RVG	0
SMF40A-E3-08 D# V36:1790_17730830	Vishay Intertechnologies	ESD Suppressor Diode TVS Uni-Dir 40V 2-Pin SMF T/R	0

Part Number	Manufacturer	Description	Stock
SMF40AHRVG D# SMF40AHRVG	Taiwan Semiconductor	- Tape and Reel (Alt: SMF40AHRVG) RoHS: Compliant	0
SMF40A RQG D# SMF40A RQG	Taiwan Semiconductor	200W, 46.75V, 5%, UNIDIRECTIONAL, TVS - Tape and Reel (Alt: SMF40A RQG) RoHS: Compliant	0
SMF40AHRQG D# SMF40AHRQG	Taiwan Semiconductor	200W, 46.75V, 5%, UNIDIRECTIONAL, TVS - Tape and Reel (Alt: SMF40AHRQG) RoHS: Compliant	0
SMF40A-HM3-18 D# SMF40A-HM3-18	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HM3 - Tape and Reel (Alt: SMF40A-HM3-18) RoHS: Compliant	0
SMF40A-E3-18 D# SMF40A-E3-18	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-E3 - Tape and Reel (Alt: SMF40A-E3-18) RoHS: Compliant	0
SMF40A-M3-08 D# SMF40A-M3-08	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-M3 - Tape and Reel (Alt: SMF40A-M3-08) RoHS: Compliant	0
SMF40A-E3-08 D# SMF40A-E3-08	Vishay Intertechnologies	ESD Suppressor TVS ±30KV 2-Pin DO-219AB T/R - Tape and Reel (Alt: SMF40A-E3-08) RoHS: Compliant	0
SMF40A-HE3-08 D# SMF40A-HE3-08	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HE3 - Tape and Reel (Alt: SMF40A-HE3-08) RoHS: Compliant	0
SMF40A-M3-18 D# SMF40A-M3-18	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-M3 - Tape and Reel (Alt: SMF40A-M3-18) RoHS: Compliant	0
SMF40A-HE3-18 D# SMF40A-HE3-18	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HE3 - Tape and Reel (Alt: SMF40A-HE3-18) RoHS: Compliant	0
SMF40A-HM3-08 D# SMF40A-HM3-08	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HM3 - Tape and Reel (Alt: SMF40A-HM3-08) RoHS: Compliant	0
SMF40A RVG D# SMF40A RVG	Taiwan Semiconductor	Diode TVS Single Uni-Directional 40V 200W 2-Pin SOD-123W T/R - Tape and Reel (Alt: SMF40A RVG) RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
SMF40AT/R13 D# SMF40A_R2_00001	PanJit Semiconductor	Diode TVS Single Uni-Dir 40V 200W 2-Pin DO-219AB T/R (Alt: SMF40A_R2_00001) RoHS: Compliant	0
SMF40AT/R7 D# SMF40A_R1_00001	PanJit Semiconductor	Diode TVS Single Uni-Dir 40V 200W 2-Pin DO-219AB T/R (Alt: SMF40A_R1_00001) RoHS: Compliant	0
SMF40A-HE3-18 D# SMF40A-HE3-18	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HE3 (Alt: SMF40A-HE3-18)	0
SMF40A-HM3-08 D# SMF40A-HM3-08	Vishay Intertechnologies	ESD PROTECTION DIODE SMF DO219-HM3 (Alt: SMF40A-HM3-08) RoHS: Compliant	0
SMF40A-E3-08 D# SMF40A-E3-08	Vishay Intertechnologies	ESD Suppressor TVS ±30KV 2-Pin DO-219AB T/R (Alt: SMF40A-E3-08) RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
SMF40A	Vishay Siliconix	ESD PROTECTION DIODE SMF DO219-E3 - Tape and Reel	0
SMF40A-E3-08	Vishay Siliconix	ESD PROTECTION DIODE SMF DO219-E3 - Tape and Reel	0
SMF40A-HE3-08	Vishay Siliconix	ESD PROTECTION DIODE SMF DO219-HE3 - Tape and Reel	0
SMF40AT1G	ON Semiconductor	TVS DIODE 40VWM 64.5VC SOD123FL	0
SMF40AT1	Littelfuse Inc	T&R / TVS SMF 40V Uni, 13 T&R	0

Part Number

Manufacturer

Description

Stock

SMF40A

TWGMC

Unidirectional SOD-123FL TVS RoHS

SMF40A-TP

Micro Commercial Components

SOD-123FL TVS RoHS

Part Number	Manufacturer	Description	Stock
SMF40AHRVG D# SMF40AHRVG-ND	Taiwan Semiconductor Manufacturing Company Limited	DIODE, TVS, UNIDIRECTIONAL, 200W	0
SMF40A RQG D# SMF40ARQG-ND	Taiwan Semiconductor Manufacturing Company Limited	DIODE, TVS, UNIDIRECTIONAL, 200W	0
SMF40A-HM3-18 D# SMF40A-HM3-18-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40AHRQG D# SMF40AHRQG-ND	Taiwan Semiconductor Manufacturing Company Limited	DIODE, TVS, UNIDIRECTIONAL, 200W	0
SMF40A-E3-18 D# SMF40A-E3-18-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40A-M3-08 D# SMF40A-M3-08-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40A-TP D# SMF40A-TPMSCT-ND	Micro Commercial Components	TVS DIODE 40V 64.5V SOD123FL	1309
SMF40A-E3-08 D# SMF40A-E3-08GICT-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	92927
SMF40A-HE3-08 D# SMF40A-HE3-08-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40A D# F5829CT-ND	Littelfuse Inc	TVS DIODE 40V 64.5V SOD123F	731
SMF40A-T13 D# SMF40A-T13-ND	Littelfuse Inc	TVS DIODE 40V 64.5V SOD123FL	0
SMF40A-M3-18 D# SMF40A-M3-18-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40A-HE3-18 D# SMF40A-HE3-18-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40A-HM3-08 D# SMF40A-HM3-08-ND	Vishay Semiconductors	TVS DIODE 40V 64.5V DO219AB	0
SMF40AT1G D# SMF40AT1GOS-ND	ON Semiconductor	TVS DIODE 40V 64.5V SOD123FL	0
SMF40AT1 D# SMF40AT1OS-ND	ON Semiconductor	TVS DIODE 40V 64.5V SOD123FL	0
SMF40A RVG D# SMF40ARVG-ND	Taiwan Semiconductor Manufacturing Company Limited	DIODE, TVS, UNIDIRECTIONAL, 200W	0

Part Number	Manufacturer	Description	Stock
SMF40A-M3-08	Vishay Intertechnologies	In stock shipping within 2days	50525
SMF40A-BS-E3-08	Vishay Intertechnologies	In stock shipping within 2days	50525
SMF40A-GS08	Vishay Intertechnologies	In stock shipping within 2days	50525
SMF40A-E3-08	Vishay Intertechnologies	In stock shipping within 2days	50525
SMF40AT1G	ON Semiconductor	In stock shipping within 2days	50525

Part Number

Manufacturer

Description

Stock

SMF40A

D# 2763066

Littelfuse Inc

TVS DIODE, 200W, 40V, UNIDIR, SOD-123FL

RoHS: Compliant

Min Qty: 5

Container: Cut Tape

1129

Part Number	Manufacturer	Description	Stock
SMF40A-TP	Micro Commercial Components	RoHS: Compliant pbFree: Yes	0
SMF40A-E3-08	Vishay Intertechnologies	SMFxxA Series 200 W 44.4 V SMT ESD Protection TVS Diode - DO-219AB RoHS: Compliant pbFree: Yes	24000
SMF40A RQG	Taiwan Semiconductor	RoHS: Compliant pbFree: Yes	0
SMF40AHRQG	Taiwan Semiconductor	RoHS: Compliant pbFree: Yes	0
SMF40A	Littelfuse Inc	TVS Diodes - Transient Voltage Suppressors 40V 200W 3.1A 5% Unidirectional RoHS: Compliant pbFree: Yes	0

Part Number

Manufacturer

Description

Stock

SMF40A-TP

D# C914431

Micro Commercial Components

SMF40A

D# C726916

TWGMC

Part Number	Manufacturer	Description	Stock
SMF40A-GS08	Vishay Intertechnologies	OEM/CM Immediate delivery	500000
SMF40A-M3-08	Vishay Intertechnologies	OEM/CM Immediate delivery	125600
P2SMF40A	ISION	OEM/CM Immediate delivery	94000
SMF40A-HM3-08(CR)	VISHAYMAS(��	OEM/CM Immediate delivery	28800
SMF40A-TP	Microchip Technology Inc	OEM/CM Immediate delivery	66540
SMF40A-E3-08	Vishay Intertechnologies	OEM/CM Immediate delivery	38300
SMF40A	Vishay Intertechnologies	OEM/CM Immediate delivery	153000
SMF40AT1G	ON Semiconductor	OEM/CM Immediate delivery	500000
SMF40A-M-GS08	Vishay Intertechnologies	OEM/CM Immediate delivery	36000

Part Number	Manufacturer	Description	Stock
SMF40A-E3-08 D# 78-SMF40A-E3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes 1000watt 40volt RoHS: Compliant	27397
SMF40A-HM3-08 D# 78-SMF40A-HM3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-HM3 RoHS: Compliant	2780
SMF40A-M3-08 D# 78-SMF40A-M3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-M3 RoHS: Compliant	1957
SMF40A-E3-18 D# 78-SMF40A-E3-18	Vishay Intertechnologies	ESD Suppressors / TVS Diodes 1000watt 40volt RoHS: Compliant	49900

Part Number

Manufacturer

Description

Stock

SMF40A_R2

PanJit Semiconductor

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR - 7IN. REEL. Package Type: SOD-123FL

RoHS: Compliant

SMF40A_R1

PanJit Semiconductor

GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR PEAK PULSE POWER 1500 Watt - 13IN. REEL. Package Type: SMC

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
SMF40A_R2 D# PJT000000002726	PanJit Semiconductor	SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR - 7IN. REEL. Package Type: SOD-123FL	0
SMF40A_R1 D# PJT000000007162	PanJit Semiconductor	GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR PEAK PULSE POWER 1500 Watt - 13IN. REEL. Package Type: SMC	0
SMF40A-E3-08 D# XSFP00000204564	Vishay Semiconductors		21000

Part Number	Manufacturer	Description	Stock
SMF40A-E3-08. D# 61AC2010	Vishay Intertechnologies	Clamping Voltage Vc Max:64.5V, Diode Case Style:DO-219AB, No. of Pins:2Pins, Operating Voltage:-, Power Dissipation Pd:-, Product Range:-, Automotive Qualification Standard:- RoHS Compliant: Yes RoHS: Compliant Min Qty: 3000 Container: TAPE & REEL - FULL	9000
SMF40A D# 44W7181	Littelfuse Inc	TVS SMF 40V Uni, 7 TR / TR RoHS Compliant: Yes RoHS: Compliant Min Qty: 3000 Container: TAPE & REEL - FULL	0
SMF40A-T13 D# 64X7005	Littelfuse Inc	TVS SMF 40V Uni, 13 TR / TR RoHS Compliant: Yes RoHS: Compliant Min Qty: 10000 Container: TAPE & REEL - FULL	0

Part Number	Manufacturer	Description	Stock
SMF40AT1 D# NS-SMF40AT1	ON Semiconductor	OEM/CM ONLY	8335
SMF40A-GS08 D# NS-SMF40A-GS08	Vishay Semiconductors	OEM/CM ONLY	8873
SMF40A D# NS-SMF40A	Littelfuse Inc	OEM/CM ONLY	6260

Part Number

Manufacturer

Description

Stock

SMF40A

Littelfuse Inc

Part Number

Manufacturer

Description

Stock

SMF40A-E3-08

D# 1807390

Vishay Intertechnologies

ESD PROTECTION DIODE SMF DO219-E3, 40V,I, RL

Min Qty: 3000

Container: Reel

28750

Part Number	Manufacturer	Description	Stock
SMF40AGS08	Vishay Semiconductors	OEM/CM ONLY	6016
SMF40A	Littelfuse Inc	OEM/CM ONLY	89
SMF40AE308.	Vishay Intertechnologies	OEM/CM ONLY	6095
SMF40AGS18	Vishay Siliconix	OEM/CM ONLY	392

Part Number	Manufacturer	Description	Stock
SMF40A-M-GS08	Vishay Intertechnologies	IN stock Immediate delivery	35985
SMF40A-GS08	Vishay Intertechnologies	IN stock Immediate delivery	499985
SMF40A-M3-08	Vishay Intertechnologies	IN stock Immediate delivery	125585
SMF40A	Vishay Intertechnologies	IN stock Immediate delivery	152985
SMF40A-HM3-08(CR)	VISHAYMAS(）	IN stock Immediate delivery	28785
SMF40A-E3-08	Vishay Intertechnologies	IN stock Immediate delivery	38285
P2SMF40A	ISION	IN stock Immediate delivery	93985
SMF40A-TP	MCC	IN stock Immediate delivery	66525
SMF40AT1G	ON Semiconductor	IN stock Immediate delivery	499985

Part Number	Manufacturer	Description	Stock
SMF40A-E3-18	Vishay Intertechnologies	ESD Suppressors / TVS Diodes 1000watt 40volt pbFree: Pb-Free	0
SMF40A-HM3-18	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-HM3 pbFree: Pb-Free	0
SMF40A-HE3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-HE3 pbFree: Pb-Free	0
SMF40A-HE3-18	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-HE3 pbFree: Pb-Free	0
SMF40A-T13	Littelfuse Inc	ESD Suppressors / TVS Diodes 200W 40V 5% Uni-directional	0
SMF40A-HM3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-HM3 pbFree: Pb-Free	0
SMF40A-M3-18	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-M3 pbFree: Pb-Free	0
SMF40A-E3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes 1000watt 40volt pbFree: Pb-Free	0
SMF40A	Littelfuse Inc	ESD Suppressors / TVS Diodes 200W 40V 5% Uni-directional	0
SMF40A-M3-08	Vishay Intertechnologies	ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-M3 pbFree: Pb-Free	0

Part Number	Manufacturer	Description	Stock
SMF40A	Littelfuse Inc	shipping today	49996
SMF40A-E3-08	Vishay Huntington	shipping today	125599
P2SMF40A	ision	shipping today	93999
SMF40A-HM3-08	Vishay Huntington	shipping today	125599
SMF40A-HE3-08	Vishay Huntington	shipping today	125599
SMF40AT1G	ON Semiconductor	shipping today	1679
SMF40AT1	ON Semiconductor	shipping today	234
SMF40A-TP	Micro Commercial Components	shipping today	66539
SMF40A-GS08	Vishay Huntington	shipping today	129999
SMF40A-M-GS08	Vishay Huntington	shipping today	125599

Part Number

Manufacturer

Description

Stock

SMF40A-E3-08

D# 38513426

Vishay Intertechnologies

ESD Suppressor Diode TVS Uni-Dir 40V 2-Pin SMF T/R

SMF40A

D# 45665506

Yenyo Technology Company Limited

SMF40A

Part Number

Manufacturer

Description

Stock

SMF40A-GS08

mfr

RFQ

7598

SMF40AT1

ON Semiconductor

RFQ

4150

Part Number

Manufacturer

Description

Stock

SMF40A

D# 2763066

Littelfuse Inc

TVS DIODE, 200W, 40V, UNIDIR, SOD-123FL

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

1129

Quick Inquiry

SMF40A

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