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MR4045 Automotive Transient Voltage Suppressor
34 V - 45 V
Designed for Automotive Applications (Alternator) requiring Reverse Avalanche Capability for use as Transient Voltage Suppressor. Developed to suppress transients in automotive systems, this device operates in the forward mode as Standard Rectifier or in Reverse as Transient Voltage Suppressor for Centralized Protection. For further information referring to Mounting or Operating Conditions, contact your nearest ON Semiconductor Sales Representative.
Mechanical Characteristics http://onsemi.com
* Finish: 100% Tin Plated *
All External Surfaces are Corrosion Resistant Weight: 2.6 Grams (Approximately)
N SUFFIX (Anode to Cup) P SUFFIX (Cathode to Cup) CASE 193A
Packaging/Labeling
* Two Sealed Bags into a Cardboard Box * Device Number Labeled on the Bag
Marking ORDERING INFORMATION
Device MR4045N MR4045P Package Button Can Button Can Shipping 5000/Box 5000/Box
* The Pieces are Laser Marked on the Epoxy of the Diode * The part, divided into 4 quarters, has the following marking:
- On the top quarter: 1 digit for the polarity (N or P), 1 digit for the voltage code (2 for 34-45 V), 4 digits for the date code (YYMM) - On the left and right quarter: 1 digit for the polarity (N or P) - On the bottom quarter: 2 digits for the site code (NL for Czech Republic) and 3 digits for the assembly lot number
MAXIMUM RATING
Rating DC Blocking Voltage Average Forward Current (Single Phase, Resistive Load, TC = 185C) Peak Repetitive Reverse Surge Current (Time Constant = 10 ms, TC = 25C) (Time Constant = 80 ms, TC = 25C) Non-Repetitive Peak Surge Current (Halfwave, Single Phase, 50 Hz) Storage Temperature Range Maximum Operating Junction Temperature Symbol VR IO Value 30 40 Unit Volts Amps
Amps IRSM IRSM IFSM Tstg TJ 55 25 500 -40 to +200 200 Amps C C
(c) Semiconductor Components Industries, LLC, 1999
1
September, 1999 - Rev. 0
Publication Order Number: MR4045/D
MR4045
THERMAL CHARACTERISTICS
Characteristic Thermal Resistance Junction to Case Symbol RJC Value 0.4 Unit C/W
ELECTRICAL CHARACTERISTICS
Characteristic Instantaneous Forward Voltage(1) Reverse Current(1) (IF = 100 Amps, TC = 25C) Symbol vF IR V(BR) V(BR) -- -- V(BR)TC VFTC 0.095* -2* 53 55 %/C mV/C Min -- -- 34 Max 1.1 1.0 45 Unit Volts
(VR = 28 Vdc, TC = 25C) (IR = 100 mA, TC = 25C)
mA
Volts Volts
Breakdown Voltage(1)
Breakdown Voltage (IR = 80 Amps, TC = 25C, PW = 80 ms) (IR = 80 Amps, TC = 85C, PW = 80 ms) Breakdown Voltage Temperature Coefficient Forward Voltage Temperature Coefficient (IF = 10 mA) (1) Pulse Test: Pulse Width < 300 s, Duty Cycle < 2%. *Typical IF, INSTANTANEOUS FORWARD CURRENT (A)
1000 IR, REVERSE CURRENT ( m A) TJ = 200C 100 150C 10 100C 1 0.1 0.01 25C
1000
100
TJ = 200C 10 150C
0.001 0 10 20 30 VR, REVERSE VOLTAGE (V)
1 500 600
100C 700
25C 800 900 1000 1100
VF, INSTANTANEOUS FORWARD VOLTAGE (mV)
Figure 1. Typical Reverse Current
100 TC = 25C 10000 PRSM, PEAK REVERSE POWER (W)
Figure 2. Typical Forward Voltage
IRSM, PEAK REVERSE CURRENT (A)
TC = 25C
1000
10 1 10 100 1000 t, TIME CONSTANT (mS)
100 1 10 100 1000 t, TIME CONSTANT (mS)
Figure 3. Maximum Peak Reverse Current
Figure 4. Maximum Peak Reverse Power
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MR4045
IF(avg), AVERAGE FORWARD CURRENT (A)
W RSM, PEAK REVERSE ENERGY (J)
1000 TC = 25C 100
60 50 40 30 20 10 0 100 120 140 160 180 200 220 TC, CASE TEMPERATURE (C)
10
1 1 10 100 1000 t, TIME CONSTANT (mS)
Figure 5. Maximum Reverse Energy
10000 9000 C, CAPACITANCE (pF)
Figure 6. Maximum Current Rating
2 Ohms 8000 7000 6000 5000 4000 0 5 10 15 20 VR, REVERSE VOLTAGE (V) 0 - 150 V x mF
di/dt Limitation 100 mH
MR4045N MR4045P
Figure 8. Load Dump Test Circuit
Figure 7. Typical Capacitance
100 di/dt < 1 A/ms 80
60 (%) 40 20 0 0 0.1 t (50%) t (37%) 0.2 t (10%) t, TIME (S) 0.3 0.5 0.4 t (37%) = Time Constant t (50%) = 0.7 t (37%) t (10%) = 2.3 t (37%)
Figure 9. Load Dump Pulse Current
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MR4045
PACKAGE DIMENSIONS
N SUFFIX (Anode to Cup) P SUFFIX (Cathode to Cup) CASE 193A-02 ISSUE A
A
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. MILLIMETERS MIN MAX 11.4 11.6 9.3 9.7 4.3 4.9 5.4 5.6 3.6 4.2 1.0 2.0 INCHES MIN MAX 0.449 0.457 0.366 0.382 0.169 0.193 0.213 0.220 0.142 0.165 0.039 0.079
D F B E C
DIM A B C D E F
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
USA/EUROPE Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com Fax Response Line*: 303-675-2167 800-344-3810 Toll Free USA/Canada
*To receive a Fax of our publications
ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-8549 Phone: 81-3-5487-8345 Email: r14153@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative.
N. America Technical Support: 800-282-9855 Toll Free USA/Canada
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MR4045/D

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