NTE Electronics NTE240 PNP Silicon Transistor 300V 0.5A TO-202N NOS

ITEM SPECIFICS
Brand: NTE Electronics
Model: NTE240
MPN: NTE240
Type: PNP Bipolar Junction Transistor
Semiconductor Material: Silicon
Maximum Collector-Emitter Voltage: 300V
Maximum Collector-Base Voltage: 300V
Maximum Emitter-Base Voltage: 5V
Maximum Collector Current: 500mA
Power Dissipation: 1W at TA 25°C / 10W at TC 25°C
Transition Frequency: 60MHz Minimum
DC Current Gain: 80 Typical
Package Type: TO-202N
Mounting Style: Through-Hole
Pin Configuration: Emitter-Base-Collector
Complementary Transistor: NTE191
Replacement Numbers: ECG240, SK9351
Number of Pins: 3
Condition: New Old Stock
Custom Label/SKU: NTE-NTE240-N

DESCRIPTION
NTE Electronics NTE240 PNP silicon high-voltage general-purpose amplifier transistor in a TO-202N through-hole package. This transistor is designed for high-voltage amplifier applications and is the complementary PNP device to the NTE191.

Specifications:
PNP silicon bipolar transistor
300V collector-emitter voltage
300V collector-base voltage
5V emitter-base voltage
500mA maximum collector current
1W power dissipation at 25°C ambient
10W power dissipation at 25°C case temperature
60MHz minimum transition frequency
Typical DC current gain of 80
TO-202N three-lead package
Emitter-Base-Collector pin configuration
Replaces ECG240 and SK9351
Complementary to NTE191

This component is New Old Stock. Component may display minor cosmetic effects from storage and handling. Please review all photographs for the exact condition, markings, and included item.

DISCLAIMER
This item is New Old Stock from stored electronic-component inventory. It has not been individually installed or function-tested by American Industrial Parts Group. Minor cosmetic wear, oxidation, or packaging wear may be present from long-term storage and handling. Ships fast with tracking. 30-day returns accepted; buyer pays return shipping.

LEGAL DISCLAIMER
We are not an authorized distributor, reseller, or representative of NTE Electronics. All product names, trademarks, brands, and logos are the property of their respective owners. Products are sourced from surplus inventory and are not covered by manufacturer warranties.

COMPATIBILITY & CROSS-REFERENCE
NTE's published datasheet lists the NTE240 (PNP) and NTE191 (NPN) as a silicon complementary pair in a TO-202N package, designed for high-voltage video and luminance output stages in television receivers. Rated characteristics include a 300V minimum collector-emitter breakdown voltage at 1mA and 500mA collector current. NTE part numbers are cross-reference replacement house numbers: the NTE240 corresponds to ECG240 and SK9351. NTE Electronics ceased operations in 2024 and NTE-branded devices are no longer produced, so remaining supply is new old stock and surplus. Always confirm the original device's ratings and pinout before substituting.

Q&A
Q: What is the NTE240? A: A PNP silicon high-voltage transistor in a TO-202N package, rated 300V with 500mA collector current, designed for video and luminance output stages.
Q: What is the complementary NPN device? A: The NTE191.
Q: What house numbers does the NTE240 replace? A: ECG240 and SK9351 — verify the original part's ratings and pinout before substituting.

NTE Electronics NTE240 NTE 240 PNP Silicon Transistor High Voltage Transistor 300V Transistor 500mA Transistor 0.5A Transistor TO-202N TO202N Bipolar Junction Transistor BJT General Purpose Amplifier High Voltage Amplifier Video Amplifier Luminance Output Transistor NTE191 Complementary ECG240 Replacement SK9351 Replacement ECG 240 SK 9351 Vintage Electronics Repair Television Repair Electronic Components Through Hole Transistor Discontinued Transistor New Old Stock NOS Semiconductor

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