
For Reference Only
Part Number | STD840DN40 |
OEMstron Part # | STD840DN40 |
Manufacturer | STMicroelectronics |
Category | Semiconductors › Transistors › Bipolar (BJT) - Arrays |
Description | TRANS 2NPN 400V 4A 8DIP |
Lifecycle | Obsolete |
RoHS | No RoHS Information |
EDA/CAD Models | STD840DN40 PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 16 - Mar 21 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
STD840DN40 Specifications
Part Number | STD840DN40 | |
Brand | STMicroelectronics | |
Lifecycle | Obsolete | |
RoHS | No RoHS Information | |
Product Line | Semiconductors | |
Category | Transistors | |
Subcategory | Bipolar (BJT) - Arrays | |
Manufacturer | STMicroelectronics | |
Series | - | |
Transistor Type | 2 NPN (Dual) | |
Current - Collector (Ic) (Max) | 4A | |
Voltage - Collector Emitter Breakdown (Max) | 400V | |
Vce Saturation (Max) @ Ib, Ic | 1V @ 400mA, 2A | |
Current - Collector Cutoff (Max) | 250µA | |
DC Current Gain (hFE) (Min) @ Ic, Vce | 8 @ 2A, 5V | |
Power - Max | 3W | |
Frequency - Transition | - | |
Operating Temperature | 150°C (TJ) | |
Mounting Type | Through Hole | |
Package / Case | 8-DIP (0.300", 7.62mm) | |
Supplier Device Package | 8-DIP |
STD840DN40 Documents

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Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
STD840DN40 STMicroelectronics |
Trans GP BJT NPN 400V 4A 8-Pin PDIP Tube |
1880 |
Part Number | Description | Stock |
STD840DN40 D# 497-11085-5-ND STMicroelectronics |
TRANS 2NPN 400V 4A 8DIP |
Limited Supply - Call |
Part Number | Description | Stock |
STD840DN40 D# 2344104 STMicroelectronics |
TRANSISTOR, NPN, DUAL, 400V, 8-DIP RoHS: Compliant
Min Qty: 1
Container: Each
|
0 |
Part Number | Description | Stock |
STD840DN40 STMICROELECTRONICS |
OEM/CM QUOTES ONLY | NO BROKERS |
190 |
Part Number | Description | Stock |
STD840DN40 D# 99W9712 STMicroelectronics |
Bipolar (BJT) Array Transistor, NPN, 400 V, 45 W, 4 A, 8, DIP RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Bulk
|
160 |
Part Number | Description | Stock |
STD840DN40 D# NS-STD840DN40 STMicroelectronics |
OEM/CM ONLY |
7153 |
Part Number | Description | Stock |
STD840DN40 STMicroelectronics |
OEM/CM ONLY |
255 |
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