Name: MMSZ5249B
Brand: Fairchild/ON Semiconductor
SKU: MMSZ5249B
Availability: InStock
Rating: 5 (112 reviews)

MMSZ5249B

For Reference Only

Part Number	MMSZ5249B
Manufacturer	Fairchild/ON Semiconductor
Description	DIODE ZENER 19V 500MW SOD123
Datasheet	MMSZ5249B Datasheet MMSZ5249B Specifications
Package	SOD-123
ECAD
In Stock	28,656 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	Jun 9 - Jun 14 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # MMSZ5249B (Diodes - Zener - Single) is manufactured by Fairchild/ON Semiconductor 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 MMSZ5249B specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add MMSZ5249B with quantity into BOM. Heisener.com does NOT require any registration to request a quote of MMSZ5249B.

MMSZ5249B Specifications

Manufacturer	Fairchild/ON Semiconductor
Category	Discrete Semiconductor Products - Diodes - Zener - Single
Package	SOD-123
ECAD
Series	-
Voltage - Zener (Nom) (Vz)	19V
Tolerance	±5%
Power - Max	500mW
Impedance (Max) (Zzt)	23 Ohms
Current - Reverse Leakage @ Vr	100nA @ 14V
Voltage - Forward (Vf) (Max) @ If	900mV @ 10mA
Operating Temperature	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SOD-123
Supplier Device Package	SOD-123

MMSZ5249B Datasheet

MMSZ5249B Reviews

Maxi*****onway

March 20, 2023

★ ★ ★ ★ ★

These did exactly what I needed them to do. Electricity only flows in one direction. Perfect.

Elai*****anesan

March 12, 2023

★ ★ ★ ★ ★

Happy with purchase, would do business again

Cole*****Nelson

February 25, 2023

★ ★ ★ ★ ★

Fantastic quality products with fair and prompt shipping. Would save much time crossing all the features. Thank you for all your effort.

Write a Review

★★★★★

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Thanks for Your Review!

MMSZ5249B Packaging

MMSZ5249B FAQ

1. How to order MMSZ5249B 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 MMSZ5249B is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MMSZ5249B. All suppliers must pass our qualification reviews before they can publish their products including MMSZ5249B on Heisener; we pay more attention to the channels and quality of MMSZ5249B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the MMSZ5249B price and inventory displayed accurate?

The price and inventory of MMSZ5249B 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 MMSZ5249B?

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 MMSZ5249B we delivered, we will accept the replacement or return of the MMSZ5249B 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 MMSZ5249B.

(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 MMSZ5249B pin diagram, MMSZ5249B datasheet?

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

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MMSZ5249B 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

MMSZ5249B-V-GS08

D# 70061909

Vishay Semiconductors

ZENER-DIODE, 0.5W, 5%, SOD-123

RoHS: Not Compliant

MMSZ5249B-V-GS08/BKN

D# 70062095

Vishay Semiconductors

ZENER-DIODE, 0.5W, 5%, SOD-123, CUT TAPE

RoHS: Not Compliant

Part Number	Manufacturer	Description	Stock
MMSZ5249B-E3-08 D# V36:1790_16249098	Vishay Intertechnologies	Zener Diode Single 19V 5% 23Ohm 500mW 2-Pin SOD-123 T/R RoHS: Compliant	0
MMSZ5249B D# V36:1790_21371944	Rectron Semiconductor	SOD123,Zener,300mW,19 V	0
MMSZ5249BT1G D# V72:2272_07305841	ON Semiconductor	Zener Diode Single 19V 5% 23Ohm 500mW 2-Pin SOD-123 T/R RoHS: Compliant	0
MMSZ5249B-HE3-08 D# V36:1790_18510965	Vishay Intertechnologies	Zener Diode Single 19V 5% 23Ohm 500mW Automotive 2-Pin SOD-123 T/R RoHS: Compliant	0
MMSZ5249B-E3-18 D# V36:1790_18510962	Vishay Intertechnologies	Zener Diode Single 19V 5% 23Ohm 500mW 2-Pin SOD-123 T/R RoHS: Compliant	0
SZMMSZ5249BT1G D# V36:1790_07278517	ON Semiconductor	Zener Diode Single 19V 5% 23Ohm 500mW Automotive 2-Pin SOD-123 T/R RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
MMSZ5249B-G3-18 D# MMSZ5249B-G3-18	Vishay Intertechnologies	ZENER DIODE SOD123-G3 - Tape and Reel (Alt: MMSZ5249B-G3-18)	0
MMSZ5249B-E3-08 D# MMSZ5249B-E3-08	Vishay Intertechnologies	ZENER DIODE SOD123-E3 - Tape and Reel (Alt: MMSZ5249B-E3-08)	0
MMSZ5249B-HE3-18 D# MMSZ5249B-HE3-18	Vishay Intertechnologies	ZENER DIODE SOD123-HE3 - Tape and Reel (Alt: MMSZ5249B-HE3-18)	0
MMSZ5249B D# MMSZ5249B	ON Semiconductor	Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R - Bulk (Alt: MMSZ5249B)	0
MMSZ5249BT1G D# 13AC6119	ON Semiconductor	Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R - Product that comes on tape, but is not reeled (Alt: 13AC6119) RoHS: Compliant	0
MMSZ5249B-G3-08 D# MMSZ5249B-G3-08	Vishay Intertechnologies	ZENER DIODE SOD123-G3 - Tape and Reel (Alt: MMSZ5249B-G3-08)	0
MMSZ5249B-HE3-08 D# MMSZ5249B-HE3-08	Vishay Intertechnologies	ZENER DIODE SOD123-HE3 - Tape and Reel (Alt: MMSZ5249B-HE3-08)	0
MMSZ5249B-E3-18 D# MMSZ5249B-E3-18	Vishay Intertechnologies	ZENER DIODE SOD123-E3 - Tape and Reel (Alt: MMSZ5249B-E3-18)	0
SZMMSZ5249BT1G D# SZMMSZ5249BT1G	ON Semiconductor	Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R - Tape and Reel (Alt: SZMMSZ5249BT1G) RoHS: Compliant	0

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

D# MMSZ5249BT1G

ON Semiconductor

Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R (Alt: MMSZ5249BT1G)

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

D# MMSZ5249BT1G

ON Semiconductor

Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R (Alt: MMSZ5249BT1G)

SZMMSZ5249BT1G

D# SZMMSZ5249BT1G

ON Semiconductor

Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R (Alt: SZMMSZ5249BT1G)

Part Number

Manufacturer

Description

Stock

MMSZ5249B

Fairchild Semiconductor Corporation

2863

MMSZ5249B-V-GS08

Vishay Intertechnologies

3000

Part Number	Manufacturer	Description	Stock
MMSZ5249B-HE3-08	Vishay Semiconductors	ZENER DIODE SOD123-HE3 - Tape and Reel	0
MMSZ5249B-E3-18	Vishay Semiconductors	ZENER DIODE SOD123-E3 - Tape and Reel	0
MMSZ5249B	Vishay Semiconductors	ZENER DIODE SOD123-E3 - Tape and Reel	0
MMSZ5249BT1	ON Semiconductor	ZENER DIODE, 500mW, 19V, SOD-123, FULL REEL, Zener Voltage Vz Typ:19V, Power Dissipation Pd:500mW, Diode Case Style:SOD-123, No. of Pins:2, Operating Temperature Max:150C, Packaging:Tape & Reel, Diode Type:Zener , RoHS Compliant: Yes	0
MMSZ5249B-G3-18	Vishay Semiconductors	ZENER DIODE SOD123-G3 - Tape and Reel	0
SZMMSZ5249BT1G	ON Semiconductor	ZEN SOD123 REG 0.5W 19V - Tape and Reel	0
MMSZ5249BT1G	ON Semiconductor	ZENER DIODE, 500mW, 19V, SOD-123, FULL REEL, Zener Voltage Vz Typ:19V, Power Dissipation Pd:500mW, Diode Case Style:SOD-123, No. of Pins:2, Operating Temperature Max:150C, Packaging:Tape & Reel, Diode Type:Zener , RoHS Compliant: Yes	0
MMSZ5249B-HE3-18	Vishay Semiconductors	ZENER DIODE SOD123-HE3 - Tape and Reel	0
MMSZ5249B-V-GS08	Vishay Semiconductors	ZENER DIODE	3658
MMSZ5249B RH	Taiwan Semiconductor	Zener 500mW 5% 19V	3985
MMSZ5249B-E3-08	Vishay Semiconductors	ZENER DIODE SOD123-E3 - Tape and Reel	0
MMSZ5249B-G3-08	Vishay Semiconductors	ZENER DIODE SOD123-G3 - Tape and Reel	0

Part Number	Manufacturer	Description	Stock
MMSZ5249B-G3-18 D# MMSZ5249B-G3-18-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0
SZMMSZ5249BT1G D# SZMMSZ5249BT1G-ND	ON Semiconductor	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249B-HE3-18 D# MMSZ5249B-HE3-18-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249BT1G D# MMSZ5249BT1GOSCT-ND	ON Semiconductor	DIODE ZENER 19V 500MW SOD123	1817
MMSZ5249B-E3-08 D# MMSZ5249B-E3-08-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249B D# 2156-MMSZ5249B-ND	Rochester Electronics LLC	DIODE ZENER 19V 0.5W 5% UNIDIR	104959
MMSZ5249BT1 D# MMSZ5249BT1-ND	ON Semiconductor	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249B-G3-08 D# MMSZ5249B-G3-08-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249B-HE3-08 D# MMSZ5249B-HE3-08-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0
MMSZ5249B-E3-18 D# MMSZ5249B-E3-18-ND	Vishay Semiconductors	DIODE ZENER 19V 500MW SOD123	0

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1

ON Semiconductor

In stock shipping within 2days

140

MMSZ5249BT1G

ON Semiconductor

In stock shipping within 2days

25726

Part Number

Manufacturer

Description

Stock

SZMMSZ5249BT1G

D# 3607535

ON Semiconductor

ZENER DIODE 500 MW SOD-123

RoHS: Compliant

Min Qty: 9000

Container: Reel

MMSZ5249BT1G

D# 2723943

ON Semiconductor

ZENER DIODE, AUTO, 19V, 0.5W, SOD-123

RoHS: Compliant

Min Qty: 5

Container: Cut Tape

817

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

ON Semiconductor

MMSZ5249BT1 Series 500 mW 100 nA 19 V SMT Zener Voltage Regulator - SOD-123

RoHS: Compliant

pbFree: Yes

Part Number	Manufacturer	Description	Stock
MMSZ5249BE308		OEM/CM QUOTES ONLY \| NO BROKERS	13920
SZMMSZ5249BT1G	ON Semiconductor	OEM/CM QUOTES ONLY \| NO BROKERS	32130
MMSZ5249BT1G	ON SEMICONDUCTOR	OEM/CM QUOTES ONLY \| NO BROKERS	2616
MMSZ5249BT1	ON SEMICONDUCTOR	OEM/CM QUOTES ONLY \| NO BROKERS	38280
MMSZ5249B	Rochester Electronics LLC	OEM/CM QUOTES ONLY \| NO BROKERS	121752
MMSZ5249BVGS08	VISHAY SEMICONDUCTOR	OEM/CM QUOTES ONLY \| NO BROKERS	17400

Part Number	Manufacturer	Description	Stock
MMSZ5249B-V-GS08	Vishay Intertechnologies	OEM/CM Immediate delivery	2650
MMSZ5249B	Fairchild Semiconductor Corporation	OEM/CM Immediate delivery	36530
MMSZ5249BT1G	ON Semiconductor	OEM/CM Immediate delivery	3000

Part Number	Manufacturer	Description	Stock
MMSZ5249B-E3-08 D# 78-MMSZ5249B-E3-08	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% RoHS: Compliant	4460
MMSZ5249B D# 512-MMSZ5249B	ON Semiconductor	Zener Diodes 19V 0.5W Zener RoHS: Compliant	192
MMSZ5249BT1G D# 863-MMSZ5249BT1G	ON Semiconductor	Zener Diodes 19V 500mW RoHS: Compliant	7929
MMSZ5249B-E3-18 D# 78-MMSZ5249B-E3-18	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% RoHS: Compliant	19649
SZMMSZ5249BT1G D# 863-SZMMSZ5249BT1G	ON Semiconductor	Zener Diodes ZEN REG 0.5W 19V RoHS: Compliant	12006

Part Number

Manufacturer

Description

Stock

MMSZ5249B_R2

PanJit Semiconductor

SURFACE MOUNT SILICON ZENER DIODES - 7IN. REEL. Package Type: SOD-323

RoHS: Compliant

MMSZ5249B_R1

PanJit Semiconductor

50V N-Channel Enhancement Mode MOSFETESD Protected - 13IN. REEL. Package Type: SOT-523

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
MMSZ5249B_R1 D# PJT000000005339	PanJit Semiconductor	50V N-Channel Enhancement Mode MOSFETESD Protected - 13IN. REEL. Package Type: SOT-523	0
MMSZ5249BT1G D# XSFP00000174510	ON SEMICONDUCTOR		33000
MMSZ5249B_R2 D# PJT000000001137	PanJit Semiconductor	SURFACE MOUNT SILICON ZENER DIODES - 7IN. REEL. Package Type: SOD-323	0

Part Number	Manufacturer	Description	Stock
MMSZ5249B-V-GS08 D# 35K8719	Vishay Intertechnologies	ZENER DIODE, Diode Case Style:SOD-123, No. of Pins:2, Operating Temperature Range:-55°C to +150°C, Power Dissipation Pd:500mW, Zener Voltage Vz Typ:19V RoHS Compliant: Yes RoHS: Compliant Min Qty: 15000 Container: TAPE & REEL - FULL	0
MMSZ5249B-E3-08 D# 12X8087	Vishay Intertechnologies	DIODE, ZENER, 19V, 0.5W, SOD-123-2, Zener Voltage Vz Typ:19V, Power Dissipation Pd:500mW, Diode Case Style:SOD-123, Zener Tolerance ±:5%, No. of Pins:2Pins, Operating Temperature Max:150°C, Product Range:- RoHS Compliant: Yes RoHS: Compliant Min Qty: 15000 Container: Cut Tape	0
MMSZ5249BT1G D# 13AC6119	ON Semiconductor	ZENER DIODE, AEC-Q101, 19V, 0.5W, SOD-123, Zener Voltage Vz Typ:19V, Power Dissipation Pd:500mW, Diode Case Style:SOD-123, Zener Tolerance ±:5%, No. of Pins:2Pins, Operating Temperature Max:150°C, Product Range:SZMMSZ52xxxT1G Series RoHS Compliant: Yes RoHS: Compliant Min Qty: 9000 Container: Cut Tape	529
SZMMSZ5249BT1G D# 76T7766	ON Semiconductor	ZEN SOD123 REG 0.5W 19V / REEL RoHS: Not Compliant Min Qty: 9000 Container: TAPE & REEL - FULL	0

Part Number	Manufacturer	Description	Stock
MMSZ5249BT1G D# NS-MMSZ5249BT1G	ON Semiconductor	OEM/CM ONLY	3012
MMSZ5249B D# NS-MMSZ5249B	Fairchild Semiconductor Corporation	OEM/CM ONLY	1886
MMSZ5249BT3 D# NS-MMSZ5249BT3	Motorola Semiconductor Products	OEM/CM ONLY	1107
MMSZ5249BT1 D# NS-MMSZ5249BT1	ON Semiconductor	OEM/CM ONLY	4636

Part Number

Manufacturer

Description

Stock

MMSZ5249B

D# MMSZ5249B

Fairchild Semiconductor Corporation

Semiconductor

2840

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

D# 8021910

ON Semiconductor

ON Semiconductor, 19V Zener Diode 5% 500 mW SMT 2-Pin SOD-123, TA

Min Qty: 200

Container: Ammo Pack

5000

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

ON Semiconductor

Zener Diode, 19V, 5%, 0.5W, Unidirectional

RoHS: Compliant

100489

MMSZ5249B

Fairchild Semiconductor Corporation

Zener Diode, 19V, 5%, 0.5W, Unidirectional

RoHS: Compliant

104959

Part Number	Manufacturer	Description	Stock
MMSZ5249BVGS08	Vishay Siliconix	OEM/CM ONLY	12016
MMSZ5249BT1	Motorola Semiconductor Products	OEM/CM ONLY	56201
MMSZ5249B	Fairchild Semiconductor Corporation	OEM/CM ONLY	7489
MMSZ5249BT1G	ON Semiconductor	OEM/CM ONLY	1070
MMSZ5249BE308	Vishay Intertechnologies	OEM/CM ONLY	12016
SZMMSZ5249BT1G	ON Semiconductor	OEM/CM ONLY	150095

Part Number	Manufacturer	Description	Stock
MMSZ5249B	Fairchild Semiconductor Corporation	IN stock Immediate delivery	36515
MMSZ5249B-V-GS08	Vishay Intertechnologies	IN stock Immediate delivery	2665
MMSZ5249BT1G	ON Semiconductor	IN stock Immediate delivery	3015

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1

Part Number	Manufacturer	Description	Stock
MMSZ5249B-G3-18	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% pbFree: Pb-Free	0
MMSZ5249B-HE3-18	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% AUTO pbFree: Pb-Free	0
MMSZ5249B-E3-08	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% pbFree: Pb-Free	0
MMSZ5249B-E3-18	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% pbFree: Pb-Free	0
MMSZ5249B-G3-08	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% pbFree: Pb-Free	0
MMSZ5249B-HE3-08	Vishay Intertechnologies	Zener Diodes 19 Volt 0.5W 5% AUTO pbFree: Pb-Free	0

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

D# 52881728

ON Semiconductor

Zener Diode Single 19V 5% 23Ohm 500mW 2-Pin SOD-123 T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

ON Semiconductor

DIODE ZENER 19V 500MW SOD123 / Diode Zener Single 19V 5% 500mW 2-Pin SOD-123 T/R

1700

Part Number

Manufacturer

Description

Stock

MMSZ5249BT1G

D# 2723943

ON Semiconductor

ZENER DIODE, AUTO, 19V, 0.5W, SOD-123

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

580

Quick Inquiry

MMSZ5249B

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