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Technical Data Sheet

2N2557 — Network Technical Data

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— · SFP TRANSCEIVER
WHAT YOU NEED TO KNOW
SR = Short Range (multimode, 300m) | LR = Long Range (single-mode, 10km) DOM = Digital Optical Monitoring — most enterprise SFPs support it
MATCH ALL THREE: Speed + Wavelength + Brand compatibility
PRODUCT OVERVIEW

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.550 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), special_features: JUNCTION PATTERN ARRANGEMENT: PNP, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.500 INCHES IN, internal_configuration: JUNCTION CONTACT. This part is cataloged in the Federal Logistics Information System under NSN 5961-00-881-0335, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
2N2557
NSN: 5961-00-881-0335
FSC: 5961
CAGE: 04713 — FREESCALE SEMICONDUCTOR, INC. (USA)
SPECIFICATIONS
overall_length0.550 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.500 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/89 GOVERNMENT SPECIFICATION
NSN5961-00-881-0335
COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN 2N2557 MFR OEM TRANSISTOR
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-S-19500/89 GOVERNMENT SPECIFICATION
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: -60.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND -40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND -20.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
•
SEMICONDUCTOR MATERIAL: GERMANIUM
•
POWER RATING PER CHARACTERISTIC: 20.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
•
TEST DATA DOCUMENT: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.500 INCHES IN
SPECIFICATION/STANDARD DATA81349-MIL-S-19500/89 GOVERNMENT SPECIFICATION
OVERALL LENGTH0.550 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC-60.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND -40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND -20.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNP
SEMICONDUCTOR MATERIALGERMANIUM
POWER RATING PER CHARACTERISTIC20.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
TEST DATA DOCUMENT81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT100.0 CELSIUS JUNCTION DEGC
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MIL-S-19500/89InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JAN2N2559InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2N2553InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5961PL1382092InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2N1039InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
23315InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N2557?
2N2557 is a TRANSISTOR.
What parts can replace 2N2557?
There are 12 known substitutes for 2N2557: MIL-S-19500/89, JAN2N2559, 2N2553 and 9 more. Substitute compatibility should be verified for your specific system.
Is 2N2557 still available?
2N2557 is currently cancelled.
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