Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS
semiconductors with its focus on the automotive, industrial, computing, consumer and wearable
application markets
In data sheets and application notes which still contain NXP or Philips Semiconductors references, use
the references to Nexperia, as shown below.
Instead of http://www.nxp.com, http://www.philips.com/ or http://www.semiconductors.philips.com/,
use http://www.nexperia.com
Instead of sales.addresses@www.nxp.com or sales.addresses@www.semiconductors.philips.com, use
salesaddresses@nexperia.com (email)
Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
the version, as shown below:
- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
- © Nexperia B.V. (year). All rights reserved.
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail
or telephone (details via salesaddresses@nexperia.com). Thank you for your cooperation and
understanding,
Kind regards,
Team Nexperia
1. Product profile
1.1 General description
NPN/PNP general-purpose double transistor in a SOT363 (SC-88) very small
Surface-Mounted Device (SMD) plastic package.
1.2 Features
n General-purpose double transistor
n Board-space reduction
1.3 Applications
n General-purpose switching and amplification
1.4 Quick reference data
PMBT3946YPN
40 V, 200 mA NPN/PNP general-purpose double transistor
Rev. 01 — 12 May 2009 Product data sheet
Table 1. Product overview
Type number Package NPN/NPN
complement
PNP/PNP
complement
Package
configuration
NXP JEITA
PMBT3946YPN SOT363 SC-88 PMBT3904YS PMBT3906YS very small
Table 2. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
Per transistor; for the PNP transistor with negative polarity
V
CEO
collector-emitter voltage open base - - 40 V
I
C
collector current - - 200 mA
h
FE
DC current gain V
CE
=1V;
I
C
=10mA
100 180 300
PMBT3946YPN_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 12 May 2009 2 of 15
NXP Semiconductors
PMBT3946YPN
40 V, 200 mA NPN/PNP general-purpose double transistor
2. Pinning information
3. Ordering information
4. Marking
[1] * = -: made in Hong Kong
* = p: made in Hong Kong
* = t: made in Malaysia
* = W: made in China
Table 3. Pinning
Pin Description Simplified outline Graphic symbol
1 emitter TR1
2 base TR1
3 collector TR2
4 emitter TR2
5 base TR2
6 collector TR1
132
4
56
sym019
2
1
3
5
6
TR1
TR2
4
Table 4. Ordering information
Type number Package
Name Description Version
PMBT3946YPN SC-88 plastic surface-mounted package; 6 leads SOT363
Table 5. Marking codes
Type number Marking code
[1]
PMBT3946YPN BB*

PMBT3946YPN,115

Mfr. #:
Manufacturer:
Nexperia
Description:
Bipolar Transistors - BJT GENERAL PURPOSE TRANSISTOR
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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