DocID15382 Rev 6

9/21

2N2907AHR

Radiation hardness assurance

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The products guaranteed in radiation within the JANS system fully comply with the MIL-

PRF-19500/291 specification.

The products guaranteed in radiation within the ESCC system fully comply with the ESCC

5202/001 and ESCC 22900 specifications.

JANS radiation assurance

ST JANS parts guaranteed at 100 krad (Si), tested, in full compliancy with the MIL-PRF-

19500 specification, specifically the Group D, subgroup 2 inspection, between 50 and 300

rad/s.

A brief summary is provided below:

–

All test are performed in accordance to MIL-PRF-19500 and test method

1019 of

MIL-STD-750 for total Ionizing dose.

Each wafer of each lot is tested. The table below provides for each monitored parameters of

the test conditions and the acceptance criteria

b.

For PNP type, voltage and current values are negative.

Table 6. MIL-PRF-19500 (test method 1019) post radiation electrical characteristics

Symbol

Parameter

Test conditions

Value

Unit

Min.

Max.

I

CBO

Collector to base

cutoff current

V

CB

= 60

20

μA

V

CB

= 50 V

20

nA

I

EBO

Emitter to base

cutoff current

V

EB

= 5 V

20

μA

V

EB

= 4 V

100

nA

V

(BR)CEO

Breakdown voltage,

collector to emitter

I

C

= 10 mA

60

V

I

CES

Collector to emitter

cutoff current

V

CE

= 50 V

100

nA

h

FE

Forward-current

transfer ratio

V

CE

= 10 V; I

C

= 0.1 mA

[37.5]

(1)

1.

See method 1019 of MIL-STD-750 for how to determine [h

FE

] by first calculating the delta (1/h

FE

) from the

pre- and Post-radiation h

FE

. Notice the [h

FE

] is not the same as h

FE

and cannot be measured directly. The

[h

FE

] value can never exceed the pre-radiation minimum h

FE

that it is based upon.

V

CE

= 10 V; I

C

= 1.0 mA

[50]

(1)

400

V

CE

= 10 V; I

C

= 10 mA

[50]

(1)

V

CE

= 10 V; I

C

= 150 mA

[50]

(1)

300

V

CE

= 10 V; I

C

= 500 mA

[25]

(1)

V

CE(sat)

Collector-emitter

saturation voltage

I

C

= 150 mA; I

B

= 15 mA

0.46

V

I

C

= 500 mA; I

B

= 50 mA

1.84

V

BE(sat)

Base-emitter

saturation voltage

I

C

= 150 mA; I

B

= 15 mA

0.6

1.5

V

I

C

= 500 mA; I

B

= 50 mA

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