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1N991B-1 の電気的特性と機能

1N991B-1のメーカーはMicrosemiです、この部品の機能は「Silicon 500mW Zener Diodes」です。


製品の詳細 ( Datasheet PDF )

部品番号 1N991B-1
部品説明 Silicon 500mW Zener Diodes
メーカ Microsemi
ロゴ Microsemi ロゴ 




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1N991B-1 Datasheet, 1N991B-1 PDF,ピン配置, 機能
1N957B-1 – 1N992B-1
Available on
commercial
versions
Silicon 500 mW Zener Diodes
Qualified per MIL-PRF-19500/117
DESCRIPTION
The popular 1N957B-1 through 1N992B-1 series of 0.5 watt Zener voltage regulators provides
a selection from 6.8 to 200 volts in a standard 5%, 2% and 1% tolerance versions. These
axial-leaded glass DO-35 Zeners feature an internal metallurgical bond and are available in
military qualified and commercial RoHS compliant versions. Military qualified versions are
available on the 1N962B-1 through 1N992B-1 range of part numbers.
Qualified Levels*:
JAN, JANTX, and
JANTXV
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
JEDEC registered 1N957B to 1N992B number series.
Internal metallurgical bond.
*JAN, JANTX, and JANTXV qualifications are available per MIL-PRF-19500/117 for part numbers
1N962B-1 thru 1N992B-1.
Upscreening is available in reference to MIL-PRF-19500 for the range of 1N957B-1 through
1N961B-1.
(See part nomenclature for all available options.)
RoHS compliant versions available (commercial grade only).
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current and temperature range.
Extensive selection from 6.8 to 200 V.
Standard voltage tolerance is ± 5% with optional tighter tolerances of ± 2% or 1%.
Flexible axial-lead mounting terminals.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Minimal capacitance.
Inherently radiation hard as described in Microsemi MicroNote 050.
MAXIMUM RATINGS
Parameters/Test Conditions
Symbol
Value
Unit
Operating and Storage Temperature
TJ and TSTG -65 to +175
ºC
Thermal Resistance Junction-to-Lead
@ .375 inch (9.53 mm) lead length from body
R ӨJL
250 ºC/W
Thermal Resistance Junction-to-Ambient when
mounted on PCB (1)
R ӨJA
300 ºC/W
Steady-State Power Dissipation
@ TL = +50°C .375 inch (9.53 mm) from body (2)
@ TA = 55°C mounted on PCB
PD 0.5 W
0.4
Forward Voltage @ IF = 200 mA
1N957 – 1N985
1N986 – 1N992
Solder Temperature @ 10 s
VF 1.1 V
1.3
TSP 260 oC
NOTES: 1. See figures 1 and 2 for derating curves. TA = +75°C on an FR4 PC board with 1 oz copper
metalization.
2. Both ends of case or diode body to heat sink at L = .375 inch (9.53 mm). Derate IZ to 0.0 mA at
+175°C.
DO-35 (DO-204AH)
Package
Also available in:
DO-213AA package
(MELF surface mount)
1N957BUR-1 –
1N992BUR-1
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
T4-LDS-0287, Rev. 1 (121795)
©2012 Microsemi Corporation
Page 1 of 8

1 Page





1N991B-1 pdf, ピン配列
1N957B-1 – 1N992B-1
Symbol
IR
IZ, IZT, IZK
I ZM
I ZSM
VF
VR
VZ
ZZT or ZZK
SYMBOLS & DEFINITIONS
Definition
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Regulator Current: The dc regulator current (IZ), at a specified test point (IZT), near breakdown knee (IZK).
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Maximum Zener Surge Current: The non-repetitive peak value of Zener surge current at a specified wave form.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
Reverse Voltage: The reverse voltage dc value, no alternating component.
Zener Voltage: The Zener voltage the device will exhibit at a specified current (IZ) in its breakdown region.
Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region at a
specified rms current modulation (typically 10% of IZT or IZK) and superimposed on IZT or IZK respectively.
T4-LDS-0287, Rev. 1 (121795)
©2012 Microsemi Corporation
Page 3 of 8


3Pages


1N991B-1 電子部品, 半導体
GRAPHS
1N957B-1 – 1N992B-1
Time (s)
FIGURE 3
Thermal Impedance PCB mount
T4-LDS-0287, Rev. 1 (121795)
Time (s)
FIGURE 4
Thermal Impedance
©2012 Microsemi Corporation
Page 6 of 8

6 Page



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部品番号部品説明メーカ
1N991B-1

Silicon 500mW Zener Diodes

Microsemi
Microsemi


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