Name: 2N4957UB
Brand: Microsemi Corporation
SKU: 2N4957UB
Availability: InStock
Rating: 5 (119 reviews)

2N4957UB

For Reference Only

Part Number	2N4957UB
Manufacturer	Microsemi Corporation
Description	TRANS PNP 30V 30MA
Datasheet	2N4957UB Specifications
Package	3-SMD, No Lead
ECAD
In Stock	6,768 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 26 - May 31 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # 2N4957UB (Transistors - Bipolar (BJT) - RF) is manufactured by Microsemi Corporation 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 2N4957UB specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add 2N4957UB with quantity into BOM. Heisener.com does NOT require any registration to request a quote of 2N4957UB.

2N4957UB Specifications

Manufacturer	Microsemi Corporation
Category	Discrete Semiconductor Products - Transistors - Bipolar (BJT) - RF
Package	3-SMD, No Lead
ECAD
Series	-
Transistor Type	PNP
Voltage - Collector Emitter Breakdown (Max)	30V
Frequency - Transition	-
Noise Figure (dB Typ @ f)	3.5dB @ 450MHz
Gain	25dB
Power - Max	200mW
DC Current Gain (hFE) (Min) @ Ic, Vce	30 @ 5mA, 10V
Current - Collector (Ic) (Max)	30mA
Operating Temperature	-65°C ~ 200°C (TJ)
Mounting Type	Surface Mount
Package / Case	3-SMD, No Lead
Supplier Device Package	UB

2N4957UB Reviews

Geral*****uwalia

April 7, 2023

★ ★ ★ ★ ★

Arrived as described and well packaged. Sent very quickly after payment.

Timo*****Taylor

April 5, 2023

★ ★ ★ ★ ★

The fastest shipping I've seen yet

Nol*****alla

April 1, 2023

★ ★ ★ ★ ★

Competitively priced set of diodes, tested as described. Quality is about what you would expect for no- or off-brand.

Elisa*****Cohen

March 14, 2023

★ ★ ★ ★ ★

These function just as well. You do need to spend some time modifying the harness, but no big deal.

Jai*****Nunez

March 1, 2023

★ ★ ★ ★ ★

Great item and excellent seller! Would highly recommend. Thank you. Trustworthy

Franc*****pherson

February 23, 2023

★ ★ ★ ★ ★

Heisener is on a very short list of companies I highly recommend without any hesitation. From stock, pricing, ease of ordering and great service, they have it all.

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2N4957UB Packaging

2N4957UB FAQ

1. How to order 2N4957UB 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 2N4957UB is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the 2N4957UB. All suppliers must pass our qualification reviews before they can publish their products including 2N4957UB on Heisener; we pay more attention to the channels and quality of 2N4957UB products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the 2N4957UB price and inventory displayed accurate?

The price and inventory of 2N4957UB 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 2N4957UB?

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 2N4957UB we delivered, we will accept the replacement or return of the 2N4957UB 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 2N4957UB.

(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 2N4957UB pin diagram, 2N4957UB datasheet?

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

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2N4957UB 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
JANTXV2N4957UB D# V37:1799_09140019	Microchip Technology Inc	Trans RF BJT PNP 30V 0.03A 200mW 4-Pin Case UB RoHS: Compliant	0
JAN2N4957UB D# V37:1799_09132825	Microchip Technology Inc	Silicon PNP Amplifier Transistor Designed for VHF-UHF Equipment RoHS: Compliant	0
2N4957UB D# V36:1790_09127572	Microchip Technology Inc	Trans RF BJT PNP 30V 0.03A 200mW 4-Pin Case UB Waffle RoHS: Not Compliant	0
JANTX2N4957UB D# V37:1799_07076868	Semicoa Semiconductors	Trans RF BJT PNP 30V 0.03A 3-Pin CSOT-23 RoHS: Not Compliant	0

Part Number	Manufacturer	Description	Stock
2N4957UBJAN/TR D# JAN2N4957UB/TR	Microchip Technology Inc	Trans RF BJT PNP 30V 0.03A 3-Pin CSOT-23 T/R - Tape and Reel (Alt: JAN2N4957UB/TR) RoHS: Compliant	0
JANTXVR2N4957UB D# JANTXVR2N4957UB	Semicoa Semiconductors	Amplifier High Frequency100 Krad(Si) - Waffle Pack (Alt: JANTXVR2N4957UB) RoHS: Not Compliant	0
2N4957UBJVJANTXV D# JANTXV2N4957UB	Semicoa Semiconductors	Amplifier High Frequency - Waffle Pack (Alt: JANTXV2N4957UB)	0
JAN2N4957UB D# JAN2N4957UB	Semicoa Semiconductors	Transistor GP BJT PNP 30V 0.03A 4-Pin TO-72 - Waffle Pack (Alt: JAN2N4957UB)	0
SC2N4957UB102 D# SC2N4957UB102	Semicoa Semiconductors	AMPLIFIERSILICON PNP BIPOLAR TRANSISTOR MILITARY - Waffle Pack (Alt: SC2N4957UB102)	0
JANS2N4957UB D# JANS2N4957UB	Semicoa Semiconductors	Amplifier High Frequency - Waffle Pack (Alt: JANS2N4957UB)	0
JANSR2N4957UB D# JANSR2N4957UB	Semicoa Semiconductors	Amplifier High Frequency100 Krad(Si) - Waffle Pack (Alt: JANSR2N4957UB) RoHS: Not Compliant	0
2N4957UB D# 2N4957UB/TR	Microchip Technology Inc	PNP TRANSISTOR - Tape and Reel (Alt: 2N4957UB/TR) RoHS: Compliant	0
2N4957UBJANTX D# JANTX2N4957UB	Semicoa Semiconductors	Amplifier High Frequency - Waffle Pack (Alt: JANTX2N4957UB)	0
JANTX2N4957UB D# JANTX2N4957UB/TR	Microchip Technology Inc	PNP TRANSISTOR - Tape and Reel (Alt: JANTX2N4957UB/TR) RoHS: Compliant	0
JANTXVF2N4957UB D# JANTXVF2N4957UB	Semicoa Semiconductors	Amplifier High Frequency300 Krad(Si) - Waffle Pack (Alt: JANTXVF2N4957UB) RoHS: Not Compliant	0
JANSF2N4957UB D# JANSF2N4957UB	Semicoa Semiconductors	Amplifier High Frequency300 Krad(Si) - Waffle Pack (Alt: JANSF2N4957UB)	0

Part Number	Manufacturer	Description	Stock
JANTXV2N4957UB D# 1086-20997-ND	Microsemi Corporation	RF TRANS PNP 30V 30MA UB	0
JAN2N4957UB D# 1086-20995-ND	Microsemi Corporation	RF TRANS PNP 30V 30MA UB	0
2N4957UB D# 1086-20994-ND	Microsemi Corporation	RF TRANS PNP 30V 30MA UB	0
JANTX2N4957UB D# 1086-20996-ND	Microsemi Corporation	RF TRANS PNP 30V 30MA UB	0

Part Number

Manufacturer

Description

Stock

JANTXV2N4957UB

Microsemi Corporation

In stock shipping within 2days

660

Part Number

Manufacturer

Description

Stock

2N4957UB

Microsemi Corporation

STOCK, SAME DAY SHIPPING. ALL PARTS ARE NEW

Part Number	Manufacturer	Description	Stock
SC2N4957UB102	Semicoa	OEM/CM QUOTES ONLY \| NO BROKERS	1090
2N4957UB	Microsemi Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	15
2N4957UBJV	Semicoa	OEM/CM QUOTES ONLY \| NO BROKERS	1249

Part Number

Manufacturer

Description

Stock

JANSF2N4957UB

Microchip Technology Inc

OEM/CM ONLY

10099

Part Number	Manufacturer	Description	Stock
JANTXV2N4957UB	Semicoa Semiconductors	OEM/CM ONLY	676
SC2N4957UB102	Semicoa Semiconductors	OEM/CM ONLY	932
2N4957UBJV	Semicoa Semiconductors	OEM/CM ONLY	1121

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2N4957UB

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