Datasheet MR2520L Datasheet (ON Semiconductor)

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MR2520L

Overvoltage
Transient Suppressor

Designed for applications requiring a low voltage rectifier with
reverse avalanche characteristics for use as reverse power transient
suppressors. Developed to suppress transients in the automotive
system, these devices operate in the forward mode as standard
rectifiers or reverse mode as power avalanche rectifier and will protect
electronic equipment from overvoltage conditions.

• High Power Capability

• Economical

• Increased Capacity by Parallel Operation

Mechanical Characteristics

• Case: Epoxy, Molded

• Weight: 2.5 Grams (Approximately)

• Finish: All External Surfaces Corrosion Resistant and Terminal

Leads are Readily Solderable

• Maximum Lead Temperature for Soldering Purposes:

350°C 3/8″ from Case for 10 Seconds at 5 lbs. Tension

• Polarity: Indicated by Diode Symbol or Cathode Band

• Marking: MR2520L

MAXIMUM RATINGS (T

Rating Symbol Value Unit

DC Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage
DC Blocking Voltage

Repetitive Peak Reverse Surge Current

(Time Constant = 10 ms,
Duty Cycle ≤ 1%, T

Peak Reverse Power

(Time Constant = 10 ms,
Duty Cycle ≤ 1%, T

Average Rectified Forward Current

(Single Phase, Resistive Load, 60 Hz,

= 125°C) (See Figure 4)

T

C

Non-Repetitive Peak Surge Current

Surge Supplied at Rated Load
Conditions Halfwave, Single Phase

Operating and Storage Junction

Temperature Range

= 25°C unless otherwise noted)

J

V

RRM

V

RWM

V

I

RSM

= 25°C)

C

P

RSM

= 25°C)

C

I

I

FSM

TJ, T

23 Volts

R

58 Amps

2500 Watts

O

stg

6.0 Amps

400 Amps

-65 to
+175

°C

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OVERVOLTAGE

TRANSIENT SUPPRESSOR

24 - 32 VOLTS

AXIAL LEAD BUTTON

CASE 194

STYLE 1

MR2520L LYYWW

MR2520L= Device Code
L = Location Code
YY = Year
WW = Work Week

ORDERING INFORMATION

Device Package Shipping

MR2520L Axial Lead

Button

MR2520LRL Axial Lead

Button

1000/Box

800/Reel

 Semiconductor Components Industries, LLC, 2002

December, 2002 - Rev. 1

1 Publication Order Number:

MR2520L/D

MR2520L

THERMAL CHARACTERISTICS

Lead

Characteristic

Thermal Resistance, Junction to Lead, Both Leads to Heat Sink

with Equal Length

Thermal Resistance Junction to Case - R

**Typical

Length

6.25 mm
10 mm
15 mm

Symbol Max Unit

R

θ

JL

7.5

°C/W
10
15

θ

JC

1.0 °C/W

ELECTRICAL CHARACTERISTICS (T

= 25°C unless otherwise noted)

J

Characteristic Symbol Min Max Unit

Instantaneous Forward Voltage (Note 1) (IF = 100 Amps, TC = 25°C) V
Instantaneous Forward Voltage (Note 1) (IF = 6.0 Amps, TC = 25°C) V
Reverse Current (VR = 20 Vdc, TC = 25°C) I
Reverse Current (VR = 20 Vdc, TC = 25°C) I
Breakdown Voltage (Note 1) (IR = 100 mAdc, TC = 25°C) V
Breakdown Voltage (Note 1) (IR = 90 Amp, TC = 150°C, PW = 80 µs) V
Dynamic Resistance (IR = 100 mA, TJ = 25°C, f = 1.0 kHz) R
Dynamic Resistance (IR = 40 mA, TJ = 25°C) R
Breakdown Voltage Temperature Coefficient V
Forward Voltage Temperature Coefficient @ IF = 10 mA V

1. Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2%.
**Typical

F

F
R
R

(BR)
(BR)

Z

Z

(BR)TC

FTC

- 1.25 Volts

- 0.90 Volts

- 10 nAdc

- 300 nAdc

24 32 Volts

- 40 Volts

- 5.0 

- 0.15 

- 0.09* %/°C

- -2* mV/°C

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2

1000

, INSTANTANEOUS FORWARD CURRENT (A)

F

I

100

10

1.0

MR2520L

4

10

3

10

2

10

1

10

T

= 150°C

J

100°C

VF, INSTANTANEOUS FORWARD VOLTAGE (mV) T

Figure 1. Forward Voltage Figure 2. Normalized Reverse Current

25°C

, REVERSE CURRENT (NORMALIZED)

0

10

R

I

1000600

1100900800700500

VR = 20 V

, JUNCTION TEMPERATURE (°C)

J

150

175125100755025

4000

3500

3000

2500

2000

C, CAPACITANCE (pF)

1500

1000

0

10

-1

10

25

20

15

10 mm

Both leads to heatsink with equal length

I

F(peak)/IF(avg)

= 

L = 6.25 mm

10

15 mm

5

, AVERAGE FORWARD CURRENT (A)

0

F(avg)

I

2520151050

VR, REVERSE VOLTAGE (V) T

, LEAD TEMPERATURE (°C)

L

Figure 3. Typical Capacitance Figure 4. Maximum Current Ratings

40
35

30
25
20
15

Single to heatsink

Maximum

Maximum

160

Typical

Typical

18014012010080604020

r(t), TRANSIENT THERMAL

RESISTANCE (NORMALIZED)

-2

10

-3

10

10

, THERMAL RESIST ANCE

10

JL

JUNCTION TO LEAD ( C/W)°

5

10

R

0

2

Both leads to heatsink (equal length)

L = 6.25 mm, both leads to heatsink (equal length)

-2

10

-1

10

0

10

1

t, TIME (S) LEAD LENGTH (mm)

Figure 5. Thermal Response Figure 6. Steady State Thermal Resistance

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3

2520151050

MR2520L

100

, PEAK REVERSE CURRENT (A)

RSM

I

1000

100

, PEAK REVERSE ENERGY (J)

RSM

W

10000

T

= 25°C

J

1000

, PEAK REVERSE POWER (W)

RSM

10

P

100

1000100101

t, TIME CONSTANT (mS) t, TIME CONSTANT (mS)

Figure 7. Maximum Peak Reverse Current Figure 8. Maximum Peak Reverse Power

2800
2600
2400

T

= 25°C

J

2200
2000

Time Constant = 10 mS

1800
1600

10

1400
1200
1000

Time Constant = 100 mS

800
600

PEAK REVERSE POWER (W)

400

1

200

1000100101

t, TIME CONSTANT (mS) T

, LEAD TEMPERATURE (°C)

L

Figure 9. Maximum Reverse Energy Figure 10. Reverse Power Derating

T

= 25°C

J

125

1000100101

150100755025

1.20

1.18

1.16

1.14

1.12

1.10

/V

1.08

1.06

Z(Irsm) Z(100 mA)

V

1.04

1.02

1.00

PW = 80 S, T

20 40

I

, REPETITIVE PEAK REVERSE SURGE CURRENT (A)

RSM

50

= 25°C

L

80 100

90 110

Figure 11. Typical Clamping Factor

0

10

-1

10

-2

10

f, FREQUENCY (HERTZ)

-3

10

12070603010

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4

1−5 mm (Both leads to heat sink)

1−20 mm (Both leads to heat sink)

10 100

TIME CONSTANT (ms)

Figure 12. Maximum Load Dump Frequency

10001

MR2520L

2 Ohms

dl/dt Limitation

100 H

(%)

100

80

60

40

20

Figure 13. Load Dump Test Circuit

dl/dt < 1 A/s

0

t (50%) t (10%)

t (37%)

Figure 14. Load Dump Pulse Current

50 mF0 - 150 V

t, TIME (S)

MR2532L

0.4

t (37%) = Time Constant
t (50%) = 0.7 t (37%)
t (10%) = 2.3 t (37%)

0.50.30.20.10

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5

Notes

MR2520L

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6

MR2520L

PACKAGE DIMENSIONS

AXIAL LEAD BUTTON

CASE 194-04

ISSUE F

A

NOTES:

D

1

K

B

K

2

1. CATHODE SYMBOL ON PACKAGE.

DIM MIN MAX MIN MAX

A 8.43 8.69 0.332 0.342
B 5.94 6.25 0.234 0.246
D 1.27 1.35 0.050 0.053
E 25.15 25.65 0.990 1.010

STYLE 1:

PIN 1. CATHODE

2. ANODE

INCHESMILLIMETERS

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MR2520L

ON Semiconductor and are registered 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

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For additional information, please contact your local
Sales Representative.

MR2520L/D

8