July 2005 / C
Page 1
SEMICONDUCTOR
TAK CHEONG
®
500 mW LL-34 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Ma ximum Ra ti ng s TA = 25°C unless otherwise noted
Parameter Value Units
Power Dissipation 500 mW
Storage Temperature Range -65 to +200 °C
Operating Junction Temperature +200 °C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 2.0 to 56 Volts
LL-34 (Mini-MELF) Package
Surface Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads are readily solderable
1st band indicates negative polarity
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device Type VZ
Min VZ
Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
IZK
(mA)
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
VR
(Volts)
TCBZV55C 2V0 1.88 2.11 5 100 1 600 50 1
TCBZV55C 2V2 2.08 2.33 5 100 1 600 50 1
TCBZV55C 2V4 2.28 2.56 5 85 1 600 50 1
TCBZV55C 2V7 2.51 2.89 5 85 1 600 10 1
TCBZV55C 3V0 2.8 3.2 5 85 1 600 4 1
TCBZV55C 3V3 3.1 3.5 5 85 1 600 2 1
TCBZV55C 3V6 3.4 3.8 5 85 1 600 2 1
TCBZV55C 3V9 3.7 4.1 5 85 1 600 2 1
TCBZV55C 4V3 4 4.6 5 75 1 600 1 1
TCBZV55C 4V7 4.4 5 5 60 1 600 0.5 1
TCBZV55C 5V1 4.8 5.4 5 35 1 550 0.1 1
TCBZV55C 5V6 5.2 6 5 25 1 450 0.1 1
TCBZV55C 6V2 5.8 6.6 5 10 1 200 0.1 2
TCBZV55C 6V8 6.4 7.2 5 8 1 150 0.1 3
TCBZV55C 7V5 7 7.9 5 7 1 50 0.1 5
TCBZV55C 8V2 7.7 8.7 5 7 1 50 0.1 6.2
TCBZV55C 9V1 8.5 9.6 5 10 1 50 0.1 6.8
TCBZV55C 10 9.4 10.6 5 15 1 70 0.1 7.5
TCBZV55C 11 10.4 11.6 5 20 1 70 0.1 8.2
TCBZV55C 12 11.4 12.7 5 20 1 90 0.1 9.1
TCBZV55C 13 12.4 14.1 5 26 1 110 0.1 10
TCBZV55C 15 13.8 15.6 5 30 1 110 0.1 11
Cathode Anode
ELECTRICAL SYMBOL
DEVICE MARKING DIAGRAM
Cathode B and Color : Blue
SURFACE MOUNT
LL34
TCBZV55C2V0 through TCBZV55C56 Series
July 2005 / C
Page 2
SEMICONDUCTOR
TAK CHEONG
®
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device Type VZ
Min VZ
Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
IZK
(mA)
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
VR
(Volts)
TCBZV55C 16 15.3 17.1 5 40 1 170 0.1 12
TCBZV55C 18 16.8 19.1 5 50 1 170 0.1 13
TCBZV55C 20 18.8 21.1 5 55 1 220 0.1 15
TCBZV55C 22 20.8 23.3 5 55 1 220 0.1 16
TCBZV55C 24 22.8 25.6 5 80 1 220 0.1 18
TCBZV55C 27 25.1 28.9 2 80 1 220 0.1 20
TCBZV55C 30 28 32 2 80 1 220 0.1 22
TCBZV55C 33 31 35 2 80 1 220 0.1 24
TCBZV55C 36 34 38 2 80 1 220 0.1 27
TCBZV55C 39 37 41 2 90 0.5 500 0.1 28
TCBZV55C 43 40 46 2 90 0.5 600 0.1 32
TCBZV55C 47 44 50 2 110 0.5 700 0.1 35
TCBZV55C 51 48 54 2 125 0.5 700 0.1 38
TCBZV55C 56 52 60 2 135 0.5 1000 0.1 42
VF Forward Voltage = 1.0 V Maximum @ IF = 100 mA for all types
Notes:
1. The type numbers listed have zener voltage min/max limits as shown.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages sho wn and tighter
voltage tolerances, contact your nearest Tak Cheong Electronics representative.
3. The z ener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.
Electrical Symbol Definition Typical Characteristics
Symbol Parameter
VZ Reverse Zener Voltage @ IZT
IZT Reverse Current
ZZT Maximum Zener Impedance @ IZT
IZK Reverse Current
ZZK Maximum Zener Impedance @ IZK
IR Reverse Leakage Current @ VR
VR Breakdown Voltage
IF Forward Current
VF Forward Voltage @ IF
Ordering Information
Device Pack Option Package Quantity
TCBZV55Cxxx 7” Reel Tape and Reel 2500
TCBZV55CxxxR13 13” Reel Tape and Reel 10,000
TCBZV55Cxxx Others (…contact Tak Cheong sales representatives)
LL34 (Mini-MELF) Tape Packaging Standards
This standard practices for surface-mount tape packaging of leadless (Mini-MELF) components meets the requirements of EI A Standard
RS-481-A.
V
I
(mV)
(V)
(mA)
(mA)
VF
IF
VR IR
VZ
IZT
(nA)
July 2005 / C
Page 3
SEMICONDUCTOR
TAK CHEONG
®
LL-34 (Mini-MELF) Tape & Reel Packaging Information
Label
Antistatic Cover Tape
Static Dissipative Embossed
Carrier Tape
Cathode
Label
LL34 UNIT ORIENTATION
Carrier Tape
Cover Tape Trailer Tape
80mm minimum or
20 empty pockets.
Leader Tape
500mm minimum or
125 empty pockets.
Components
Packaging Description:
LL34 parts are shipped in tape and reel.
The c arrier ta pe is mad e from a dis sipati ve
(carton filled) polycarbonate resin. The
cover tape is a multiplayer film (Heat
Activated Adhesive in nature) primarily
composed of polyester film, adhesive layer,
sealant, and anti-static sprayed agent.
These reeled parts in standard option are
shipped with 2,500 units per 7” or 178mm
diameter reel. The reels are blue in color
and made of recyclable plastic. Other
option comes in 10,000 units per 13” or
330mm diameter reel
LL-34 Packaging Outline
LL-34 Leader and Trailer
July 2005 / C
Page 4
SEMICONDUCTOR
TAK CHEONG
®
LL-34 (Mini-MELF) Tape & Reel Packaging Information
LL-34 Reel Outline
Dimensions are in millimeters
Tape Size QTY Option Dim A Dim B Dim C Dim D Dim N W1 W2 W3
2,500 178 1.5 13 20.2 55 8.4 14.4 7.9 – 10.9
8mm 10,000 330 1.5 13 20.2 100 8.4 14.4 7.9 – 10.9
July 2005 / C
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SEMICONDUCTOR
TAK CHEONG
®
Package Outline
Package Case Outline
LL34
LL-34
Millimeters Inches
DIM
Min Max Min Max
A 3.302 3.505 0.130 0.138
B 1.397 1.499 0.055 0.059
C 0.350 0.500 0.014 0.020
Notes: 1. LL34 polarity denoted by a band.
2. ‘Expansion Gap’ has no relation to the location of polarity.
