NB440-E3

GLOBAL BRAND CROSS-REFERENCE

Vishay Siliconix

JFET 2N-CH 25V

U440-E3

High-reliability design
Long-term stable supply
RoHS compliant

JFET 2N-CH 25V

1. PRODUCT POSITIONING

NB440-E3 is a product identity corresponding to the reference product U440-E3. This document presents the available product specifications, mechanical/package information and compatibility summary for engineering and procurement reference.

This document is a product information. Compatibility conclusions should be read together with the applicable Cross-Reference Identification (CID) rule, package/pin verification and engineering review record.

2. TECHNICAL SPECIFICATION COMPARISON (core parameters)
Parameter	Vishay Siliconix U440-E3	ChipNobo NB440-E3	Match
Part Status	Active	Active	✓
Mounting Type	Through Hole	Through Hole	✓
Power - Max	500 mW	500 mW	✓
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	✓
Voltage - Breakdown (V(BR)GSS)	25 V	25 V	✓
FET Type	2 N-Channel (Dual)	2 N-Channel (Dual)	✓
Voltage - Cutoff (VGS off) @ Id	1 V @ 1 nA	1 V @ 1 nA	✓
Input Capacitance (Ciss) (Max) @ Vds	3pF @ 10V	3pF @ 10V	✓
Current - Drain (Idss) @ Vds (Vgs=0)	6 mA @ 10 V	6 mA @ 10 V	✓
Package / Case	TO-71-6	TO-71-6	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓

3. SUPPLY & LIFECYCLE
ChipNobo Number	NB440-E3
Lifecycle status	Active
NRND	No
EOL	No
PCN monitor	No
Last buy date	No Deadline
Alternate availability	Sufficient

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

JFETs

PRODUCT DATASHEET

4. APPLICATION AREAS
Medical Monitoring Equipment	Laboratory Equipment
Portable Medical Device	Semiconductor Equipment
Industrial Computer	5G Base Station
Wireless Gateway	Data Communication Equipment
Data Center Switch	TWS Earbuds
Smart Speaker	VR/AR Device

5. ENGINEERING & COMMERCIAL NOTES

The ChipNobo MPN is the public product identity used by ChipNobo for this replacement reference.
The original manufacturer and original MPN are retained as reference identity information.
Product PDF data are intended for engineering, procurement and supply-continuity reference.
Current price, MOQ, lead time, available supply source and regional availability should be confirmed through RFQ.
For customer-specific qualification, PCB footprint approval, reliability requirements or design-in approval, the customer should perform the applicable validation process.

Document purpose: Product Information / Replacement Reference · Generated from the product data supplied for NB440-E3.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB440-E3】 Revision: 1.0 Status: Released

The information provided by ChipNobo is intended solely for engineering evaluation, product selection, procurement, and supply continuity reference purposes. Product specifications, lifecycle status, availability, and other information are subject to change without notice. Customers should always verify relevant information against the latest official documentation published by the respective manufacturers.

Cross-reference and replacement recommendations are provided for engineering reference purposes only. They do not constitute a guarantee of pin-to-pin compatibility, interchangeability, or suitability for any particular application. Customers are responsible for conducting all necessary engineering reviews, testing, and qualification prior to product selection and use.

Manufacturer names, trademarks, and part numbers are referenced solely for product identification purposes. Their use does not imply any affiliation with, endorsement by, or authorization from the respective manufacturers, unless expressly stated otherwise.

To the maximum extent permitted by applicable law, ChipNobo makes no warranties, express or implied, regarding the completeness, accuracy, or suitability of the information provided and shall not be liable for any loss or damage arising from its use or reliance, except as otherwise expressly agreed in writing and subject to applicable law.