TCS-DL Series Datasheet by Bourns Inc.

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Features
High-speed performance
Superior overcurrent protection
Bidirectional
Low resistance
Excellent channel to channel resistance
matching
Small SMT package
RoHS compliant* and halogen free**
Applications
VDSL and Ethernet ports
Protection modules and dongles
Process control equipment
Test and measurement equipment
TCS-DL Series - TCS Dual Transient Current Suppressors
General Information
The Bourns® TCS DL Series High-Speed Protector products contain dual, well-matched,
low resistance, bidirectional, very high-speed Transient Current Suppressors. By limiting
the maximum current to a safe level, a Bourns® TCS DL device offers superior protection
for very high data rate differential lines against faults caused by short circuits, induction
and lightning surges.
Bourns® TCS High-Speed Protectors are typically used in conjunction with low capacitance
TVS devices to form an extremely low let-through energy barrier to excessive voltages
and currents during surge events which may cause damage to unprotected high-speed,
low voltage driver and receiver components.
Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)
Symbol Parameter Value Unit
Vimp Peak impulse voltage withstand with duration less than 1 ms 40 V
Top Operating temperature range -55 to +125 °C
Tstg Storage temperature range -65 to +150 °C
TJMAX Maximum junction temperature +125 °C
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Symbol Parameter Part Number Min. Typ. Max. Unit
Itrigger Current required for the device to go from operating state to
protected state
TCS-DL004-250-WH
TCS-DL004-500-WH
TCS-DL004-750-WH
250
500
750
375
750
1100
500
1000
1500
mA
RON Series resistance of the TCS™ device
TCS-DL004-250-WH
TCS-DL004-500-WH
TCS-DL004-750-WH
1.6
1.0
0.7
2.3
1.4
1.0
3.0
1.8
1.3
Ω
ΔRON Channel to channel resistance match
TCS-DL004-250-WH
TCS-DL004-500-WH
TCS-DL004-750-WH
±0.05
±0.03
±0.02
Ω
tlimit Time for the device to go from normal operating state to current limiting state 50 ns
RθJA
Junction to air thermal resistance, FR4 PCB.
0.035 sq. in. of copper in addition to solder pads 130 °C/W
TCS
Device
Line 1
In/Out
Line 2
In/Out
Line 1
Out/In
Line 2
Out/In
*RoHS COMPLIANT
&
**HALOGEN FREE
The Bourns® TCS High-Speed Protector is provided in a space-saving, surface mount
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine
(Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf
BOURNS' defined mm! o! the Bourns
Temperature (°C)
-55 -35 -15 5 25 45 65 85 105 125
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Normalized Resistance
Voltage (V)
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
1.2
403020100-10-20-30-40
Normalized Current
Temperature (°C)
-55 -35 -15 5 25 45 65 85 105 125
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Normalized Trip Current
TCS-DL Series - TCS Dual Transient Current Suppressors
Performance Graphs
Normalized V-I Curve Under Surge Conditions
Resistance Change vs. Temperature
Graph 1 below shows a normalized Typical V-I curve for Bourns®
TCS DL Series High-Speed Protector products under surge
conditions. Graphs 2 and 3 show the change in resistance and
trip current versus temperature, respectively.
Trip Current Change vs. Temperature
SURGE PROTECTION
The Bourns® TCS™ High-Speed Protector is designed to be
used in conjunction with a suitable overvoltage limiting device,
such as a TVS diode or a TISP® thyristor as shown below, to
provide comprehensive current and voltage limiting protection
against surges.
Coordination of Bourns® TCS High-Speed Protector with Overvoltage
Limiting Device
This two-stage protection limits the maximum voltage at the
interface to the clamping voltage of the overvoltage device,
while also limiting the current into the protected device to the
® TCS High-Speed Protector.
Designers should choose a Bourns® TCS High-Speed
Protector with a current limit that the protected device can
handle for the duration of the surge event.
The Bourns® TCS High-Speed Protector acts like a low value
resistor during normal operation. As the Bourns® TCS High-
Speed Protector has no electrical connection to anything other
than the signal line it protects, the capacitance to ground is
purely dictated by the capacitance of the device to surrounding
components and PCB traces, which with careful layout can be
kept to an absolute minimum.
The Bourns® TCS High-Speed Protector can block voltages
up to 40 V. This enables very low voltage electronics to be
protected by a lower capacitance, higher voltage TVS device,
thus achieving very low capacitive loading on high-speed signal
lines. For example, on a 3.3 V driver, a 12 V rated TVS may
be used, having much lower and more linear capacitance than
a lower voltage type. Even though a high voltage TVS is used,
the maximum stress seen by the protected device is much
lower than would be seen by using a low voltage TVS by itself,
as the current is limited to within the maximum limits of the
Bourns® TCS High-Speed Protector.
The Bourns® TCS High-Speed Protector is primarily designed
to offer superior and cost-effective protection of sensitive
electronics against high energy surges that are transient in
nature. Unlike the more complex TBU® High-Speed Protector
device, the TCS Protector does not exhibit a strong foldback
Basic Device Operation
PROTECTED
DEVICE
VOLTAGE
LIMITING
DEVICE
TRANSIENT
SURGE
Bourns® TCS HSP
Specifications are subject to change without notice. Users should verify actual device
performance in their specific applications. The products described herein and this
document are subject to specific legal disclaimers as set forth on the last page of
this document and at www.bourns.com/docs/legal/disclaimer.pdf
BOURNS ‘ 25C ; \ \‘w 25 ”C
TCS-DL Series - TCS Dual Transient Current Suppressors
Basic Device Operation (Continued)
characteristic after reaching the current limit, and therefore
doesn’t protect against DC and low frequency stresses
(typically achieved through the use of a transformer or
capacitive coupling). This is analogousto comparing the shunt-
ing characteristics of a Transient Voltage Suppressor device to
a thyristor type of protector, such as Bourns® TISP® devices.
Both the Bourns® TCS™ High-Speed Protector and TVS
device have limited or no foldback characteristic, and therefore
have relatively low short term surge energy limits. When used
together in a protection circuit, the surge must not exceed the
thermal capability of either device. The following three graphs
show the maximum surge duration with respect to voltage of the
three TCS-DL devices at both +25 °C and +85 °C.
Time (Seconds)
0.00001 0.0001 0.001 0.01 0.1 1
0
10
20
30
40
50
Voltage Across TCS Device (Volts)
25 °C
85 °C
TCS-DL004-250-WH SOA Single Surge Duration TCS-DL004-750-WH SOA Single Surge Duration
TCS-DL004-500-WH SOA Single Surge Duration
Time (Seconds)
0.00001 0.0001 0.001 0.01 0.1 1
0
10
20
30
40
50
Voltage Across TCS Device (Volts)
25 °C
85 °C
Time (Seconds)
0.00001 0.0001 0.001 0.01 0.1 1
0
10
20
30
40
50
Voltage Across TCS Device (Volts)
25 °C
85 °C
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BOURNS‘
CDSOD323-TxxC
1/4 SM51589L
Not Used
TCS-DL
1CT:1CT
Ethernet
PHY
To
LINE
TCS-DL Series - TCS Single Transient Current Suppressors
Basic Device Operation (Continued)
COORDINATION
In all applications, the overvoltage protection device should be
chosen to limit the maximum voltage across the Bourns® TCS
High-Speed Protector to less than the maximum voltage rating
of the device. If this maximum voltage limit is exceeded, the
Bourns® TCS High-Speed Protector may begin to avalanche,
and it will cease to effectively block the current into the
protected device, which may result in damage.
USING MULTIPLE TCS-DL DEVICES IN SERIES OR
PARALLEL
Bourns® TCS High-Speed Protectors may be connected in
parallel to achieve even lower on-state resistance. If matching
is required, use two Bourns® TCS-DL Series HSPs, and connect
one Bourns® TCS High-Speed Protector from each DL device
in parallel. In addition, because of their ultra-fast response, mul-
tiple Bourns® TCS High-Speed Protectors may be connected in
series to achieve multiples of the breakdown voltage.
Reference Applications
Two good examples of applications where the combination of
a Bourns® TCS High-Speed Protector and a voltage limit-
ing device provides exceptional performance are in VDSL
and Ethernet circuits, where the line is driven differentially by a
transformer.
LINE DRIVER1
LINE DRIVER2
R1
T1
C2 C1
TIP
RING
R2
TCS-DL1 (a)
1 W
Zener Diode
CDSOT23-S2004
CDSOT23-S2004
TCS-DL2 (b)
Basic Schematic of a VDSL Line Driver Stage
TCS-DL Series - TCS Dual Transient Current Suppressors
GbE
In the Gigabit Ethernet (GbE) application circuit shown below,
the transformer provides additional protection against sustained
DC faults and provides some isolation from surge conditions
such as lightning strikes. The TCS™ device limits the current
that the PHY will be subjected to under a surge condition. It
also provides voltage isolation so that the peak voltage that the
PHY is subjected to will be lower than the TVS diode
clamp voltage. The TVS diode will sink the majority of
the transformer secondary current and clamp the voltage
to a level that is below the 40 V maximum rating of the
TCS™ device.
Gigabit Ethernet Application Circuit
VDSL
In the VDSL application shown below, the transformer provides
additional protection against sustained DC faults and the cou-
pling capacitors, C1 and C2, provide protection against DC and
mains frequency power faults. The termination resistors
R1 and R2 are reduced in value by the nominal resistance of
the Bourns® TCS High-Speed Protector to maintain the overall
termination resistance.
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BOURNS‘ 9"; a e
E
D
C
B
F
A
TCS-DL Series - TCS Dual Transient Current Suppressors
PIN 1
C
B
A1
A
SEATING PLANE
XXXXX
YWWLL
Product Dimensions Recommended Pad Layout
Pad Designation
Bourns® TCS High-Speed
Protectors have a matte-tin
termination. The recommend-
ed solder stencil thickness
is 0.10 to 0.12 mm (0.004
to 0.005 in.). The stencil
opening for pins 1,3,4 and
6 should be the same size
as the recommended PCB
pad size. The stencil open-
ings for pins 2 and 5 of the
device should cover 60-70 %
of the area of the PCB pad
and should be divided into
smaller areas as shown in
Pad # Apply Pad # Apply
1 Line 1 In/Out 4 Line 2 Out/In
2No
Connection 5No
Connection
3 Line 1 Out/In 6 Line 2 In/Out
DIMENSIONS: MM
(INCHES)
Dim.
TCS-DL004-250-WH TCS-DL004-500-WH TCS-DL004-750-WH
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
A 0.80
(.031)
0.90
(.035)
1.00
(.039)
0.80
(.031)
0.90
(.035)
1.00
(.039)
0.80
(.031)
0.90
(.035)
1.00
(.039)
A1 0.00
(.000)
0.025
(.001)
0.05
(.002)
0.00
(.000)
0.025
(.001)
0.05
(.002)
0.00
(.000)
0.025
(.001)
0.05
(.002)
B 2.40
(.094)
2.50
(.098)
2.60
(.102)
3.4
(.134)
3.5
(.138)
3.6
(.142)
4.4
(.173)
4.5
(.177)
4.6
(.181)
C 3.90
(.154)
4.00
(.157)
4.10
(.161)
3.90
(.154)
4.00
(.157)
4.10
(.161)
3.90
(.154)
4.00
(.157)
4.10
(.161)
D1.05
(.041)
1.10
(.043)
1.15
(.045)
2.05
(.081)
2.10
(.083)
2.15
(.085)
3.05
(.120)
3.10
(.122)
3.15
(.124)
E0.20
(.008)
0.25
(.010)
0.30
(.012)
0.20
(.008)
0.25
(.010)
0.30
(.012)
0.20
(.008)
0.25
(.010)
0.30
(.012)
F0.75
(.030)
0.8
(.031)
0.85
(.033)
0.75
(.030)
0.8
(.031)
0.85
(.033)
0.75
(.030)
0.8
(.031)
0.85
(.033)
G 1.40
(.055)
1.45
(.057)
1.50
(.059)
1.40
(.055)
1.45
(.057)
1.50
(.059)
1.40
(.055)
1.45
(.057)
1.50
(.059)
H0.10
(.004)
0.15
(.006)
0.20
(.008)
0.10
(.004)
0.15
(.006)
0.20
(.008)
0.10
(.004)
0.15
(.006)
0.20
(.008)
J0.25
(.010)
0.30
(.012)
0.35
(.014)
0.25
(.010)
0.30
(.012)
0.35
(.014)
0.25
(.010)
0.30
(.012)
0.35
(.014)
K0.55
(.022)
0.60
(.024)
0.65
(.026)
0.55
(.022)
0.60
(.024)
0.65
(.026)
0.55
(.022)
0.60
(.024)
0.65
(.026)
M0.20
(.008)
0.25
(.010)
0.30
(.012)
0.20
(.008)
0.25
(.010)
0.30
(.012)
0.20
(.008)
0.25
(.010)
0.30
(.012)
4 65
31
2
EE
H
M
M
G
K
JJ
D
H
F
F
G
Dim. TCS-DL004-250-WH TCS-DL004-500-WH TCS-DL004-750-WH
A0.80
(.031)
0.80
(.031)
0.80
(.031)
B 0.25
(.010)
0.25
(.010)
0.25
(.010)
C 0.30
(.012)
0.30
(.012)
0.30
(.012)
D1.1
(.043)
2.1
(.083)
3.1
(.122)
E1.45
(.057)
1.45
(.057)
1.45
(.057)
F 0.30
(.012)
0.30
(.012)
0.30
(.012)
PCB MOUNTING PADS
PCB MOUNTING PADS
SOLDER
STENCIL
OPENINGS
DEVICE
BODY
OUTLINE
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BOURNS' : // How to Tnp Rana Sumx Package Sumx
TCS-DL Series - TCS Dual Transient Current Suppressors
How to Order
TCS - DL 004 - 500 - WH
TCS™ Product
Series
DL = Dual Series
Impulse Voltage Rating
004 = 40 V
Minimum Trigger Current
250 = 250 mA
500 = 500 mA
750 = 750 mA
W = 2:1 Maximum to Minimum Trigger Current Ratio
H = DFN Package
Typical Part Marking
PIN 1
5 DIGIT PRODUCT CODE:
• 1ST ALPHA CHARACTER INDICATES PRODUCT FAMILY:
D = TCS-DL SERIES
• 2ND & 3RD DIGITS INDICATE IMPULSE VOLTAGE.
• 4TH & 5TH DIGITS INDICATE TRIGGER CURRENT.
MANUFACTURING
DATE CODE:
• 1ST DIGIT INDICATES THE YEAR.
• 2ND & 3RD DIGITS INDICATE THE WEEK NUMBER.
• 4TH & 5TH DIGITS INDICATE LOT CODE.
XXXXX
YWWLL
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BOURNS‘ Packaging Specifications 326 330 1.5 2.5 12.8 13.5 20.2 12,4 14,4 100 4 20 4.40 1.50 1.60 1.50 1,65 1,85 5,45 555 1 00 1 20 3.90 4.10 7.90 6.10 1,95 2,05 0,25 0,35 11 70 12.30 7
tW
Min. Max. Min. Max.
0.25
(.010)
0.35
(.014)
11.70
(.461)
12.30
(.484)
B
A
DC
N
G (MEASURED AT HUB)
USER DIRECTION OF FEED
K0
B0
P2
D1
t
R
MAX.
0.20
(.008)
D0
P0
A0
P1
F
E
W
R0.25
(.010)
0.12
(.005)
0.12
(.005)
DIMENSIONS: MM
(INCHES)
A B C D G
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
326
(12.835)
330
(13.002)
1.5
(.059)
2.5
(.098)
12.8
(.504)
13.5
(.531)
20.2
(.795) 12.4
(.488)
14.4
(.567)
NA
0 D
0 D
1 E
Ref. Min. Max. Min. Max. Min. Max. Min. Max.
100
(3.937)
4.20
(.165)
4.40
(.173)
1.50
(.059)
1.60
(.063)
1.50
(.059) -1.65
(.065)
1.85
(.073)
FK
0P0P1P2
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
5.45
(.215)
5.55
(.219)
1.00
(.039)
1.20
(.047)
3.90
(.154)
4.10
(.161)
7.90
(.311)
8.10
(.319)
1.95
(.077)
2.05
(.081)
QUANTITY: 3000 PIECES PER REEL
“TBU” is a registered trademark of Bourns, Inc. in the United States and other countries.
“TCS” is a trademark of Bourns, Inc.
“TISP” is a registered trademark of Bourns Ltd., a Bourns Company, in the United States and other countries, except that “TISP” is a registered trademark of Bourns, Inc. in China.
REV. 02/17
TCS-DL Series - TCS Dual Transient Current Suppressors
TCS-DL004-
250-WH
TCS-DL004-
500-WH
TCS-DL004-
750-WH
B0
Min. Max. Min. Max. Min. Max.
2.70
(.106)
2.90
(.114)
3.70
(.146)
3.90
(.154)
4.70
(.185)
4.90
(.193)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BOURNS'
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
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the user’s sole risk.
;OL\ZLHUKSL]LSVM[LZ[PUNHWWSPJHISL[V)V\YUZ® custom products shall be negotiated on a case-by-case basis by Bourns
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also apply to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns®WYVK\J[ZVY[LJOUVSVN`MVY\ZLPUHJ[P]P[PLZ^OPJOPU]VS]L[OL
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YLN\SH[PVUZ-\Y[OLY)V\YUZ® products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns® products may not, without
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bilingual versions are available at:
Web Page:
http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
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