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MECA Electronics

Miniature Lamp Guide

Bulbs are described by a letter indicating shape and a number that is an approximation of diameter expressed in eighths of an inch. For example, B-4 is "B" shape, 4 eighths or one half inch in diameter.

Bulb Styles
B Miniature lamps lamp drawings "B" - RF Cafe G Miniature lamps lamp drawing "G" - RF Cafe GTL Miniature lamps lamp drawing "GTL" - RF CafeRP Miniature lamps lamp drawing "RP" - RF CafeS Miniature lamps lamp drawing "S" - RF CafeT Miniature lamps lamp drawing "T" - RF CafeTL Miniature lamps lamp drawing "TL" - RF Cafe

Bayonet Bases
BIDC Miniature lamps lamp drawing "BIDC" - RF Cafe
        Miniature lamps lamp drawings drawing
BDC Miniature lamps lamp drawing "BDC" - RF Cafe
       Miniature lamps lamp drawings drawing
BSC Miniature lamps lamp drawing "BSC" - RF CafePFDC Miniature lamps lamp drawing "PFDC" - RF CafeBMN "BMN" miniature bulb - RF Cafe

Flange Bases
FSMD Miniature lamps lamp drawing "FSMD" - RF CafeFSCMD Miniature lamps lamp drawing "FSCMD" - RF CafeFSCMN Miniature lamps lamp drawing "FSCMN" - RF Cafe

Screw Bases
SMD Miniature lamps lamp drawing "SMD" - RF CafeSMN Miniature lamps lamp drawing "SMN" - RF CafeSC Miniature lamps lamp drawing "SC" - RF CafeSI Miniature lamps lamp drawing "SI" - RF Cafe

Wedge Bases
WSMN Miniature lamps lamp drawing "WSMN" - RF CafeMiniature lamps lamp drawing "W" - RF CafeSL Miniature lamps lamp drawing "SL" - RF Cafe

Miscellaneous Bases
MTP Miniature lamps lamp drawing "MTP" - RF CafeBP  Miniature lamps lamp drawing "BP" - RF CafeGMD Miniature lamps lamp drawing "GMD" - RF CafeSPTHD Miniature lamps lamp drawing "SPTHD" - RF Cafe

Lamp Base Legend
BDCBayonet, dual-contactFSMDFlanged, submidgetSMDScrew, midget
BIDCBayonet, indexed dual-contactGMDMidget groovedSMNScrew, miniature
BMNBayonet, miniatureMTPMiniature two-pinSPTHDScrew, special thread
BPBipinPFDCPrefocused dual contactWWedge
BSCBayonet, single-contactSLSlide (various sizes)WSMNWedge, subminiature
FSCMNFlanged, single-contact, miniatureSCScrew, candelabraWTWire terminal
FSCMDFlanged, midget single-contactSIScrew, intermediate  

TypeBulbBaseVolts
(V)
Current
(A)
Lifetime
(x1000 hrs)
PR2B-3.5FSCMN2.380.50015
PR3B-3.5FSCMN3.570.50015
PR4B-3.5FSCMN2.330.27010
PR6B-3.5FSCMN2.470.30030
PR7B-3.5FSCMN3.700.30030
PR12B-3.5FSCMN5.950.50015
PR13B-3.5FSCMN4.750.50015
10G-3.5MTP2.500.5003K
12G-3.5MTP6.300.1505K
13G-3.5SMN3.700.30015
14G-3.5SMN2.470.30015
19G-3.5MTP14.400.1001K
27G-4.5SMN4.900.30030
37T-1.75WSMN14.000.0901.5K
40T-3.25SMN6.300.1503K
43T-3.25BMN2.500.5003K
44T-3.25BMN6.300.2503K
455-3.25BMN3.200.3503K
46T-3.25SMN6.300.2503K
47T-3.25BMN6.300.1503K
48T-3.25SMN2.000.0601K
49T-3.25BMN2.000.0601K
50G-3.5SMN7.500.2201K
51G-3.5BMN7.500.2201K
52G-3.5SMN14.400.1001K
53G-3.5BMN14.400.1201K
55G-4.5BMN7.000.410500
57G-4.5BMN14.000.240500
63G-6BSC7.000.6301K
73T-1.75WSMN14.000.08015K
74T-1.75WSMN14.000.100500
82G-6BDC6.501.020500
85T-1.75WSMN28.000.0407K
86T-1.75WSMN6.300.20020K
88S-8BDC6.801.910300
93S-8BSC12.801.040700
112TL-3SMN1.200.2205
130G-3.5BMN6.300.1505K
131G-3.5SMN1.300.10050
158T-3.25W14.000.240500
159T-3.25W6.300.1505K
161T-3.25W14.000.1904K
168T-3.25W14.000.3501.5K
219G-3.5BMN6.300.2505K
222TL-3SMN2.250.2500.5
239T-3.25BMN6.300.3605K
240T-3.25BMN6.300.3605K
259T-3.25W6.300.2505K
268T-1.75FSCMD2.500.35010K
305S-8BSC28.000.510300
307S-8BSC28.000.670300
308S-8BDC28.000.670300
313T-3.25BMN28.000.170500
323T-1.25SPTHD3.000.190350
327T-1.75FSCMD28.000.0404K
327AS15T-1.75FSCMD28.000.0404K
328T-1.75FSCMD6.000.2001K
330T-1.75FSCMD14.000.0801.5K
331T-1.75FSCMD1.350.0603K
334T-1.75GMD28.000.0404K
335T-1.75SMD28.000.0404K
336T-1.75GMD14.000.0801.5K
337T-1.75GMD6.000.2001K
338T-1.75FSCMD2.700.0606K
342T-1.75SMD6.000.04010K
344T-1.75FSCMD10.000.01450K
345T-1.75FSCMD6.000.04010K
346T-1.75GMD18.000.04010K
349T-1.75FSCMD6.300.2005K
370T-1.75FSCMD18.000.04010K
373T-1.75SMD14.000.0801.5K
375T-1.75FSCMD3.000.01510K
376T-1.75FSCMD28.000.06025K
380T-1.75FSCMD6.300.04020K
381T-1.75FSCMD6.300.20020K
382T-1.75FSCMD14.000.08015K
385T-1.75FSCMD28.000.04010K
386T-1.75GMD14.000.08015K
387T-1.75FSCMD28.000.0407K
388T-1.75GMD28.000.0407K
397T-1.75GMD10.000.0405K
398T-1.75GMD6.300.2005K
399T-1.75SMD28.000.0407K
502G-4.5SMN5.100.150100
555T-3.25W6.300.2503K
656T-3.25W28.000.0602.5K
680AS15T-1WT5.000.06060K
682AS15T-1FSMD5.000.06060K
683AS15T-1WT5.000.06025K
685AS15T-1FSMD5.000.06025K
715AS15T-1WT5.000.11540K
715AS25T-1WT5.000.11540K
718AS25T-1FSMD5.000.11540K
755T-3.25BMN6.300.15020K
756T-3.25BMN14.000.08015K
757T-3.25BMN28.000.0807.5K
1034S-8BIDC14.000.5905K
1073S-8BSC12.801.800200
1130S-8BDC6.402.630200
1133RP-11BSC6.203.910200
1141S-8BSC12.8801.4401K
1143RP-11BSC12.501.980400
1184RP-11BDC5.506.250100
1251G-6BSC28.000.2302K
1445G-3.5BMN14.400.1302K
1487T-3.25SMN14.000.2003K
1488T-3.25BMN14.000.150200
1490T-3.25BMN3.200.1603K
1493S-8BDC6.502.750100
1619S-8BSC6.701.900500
1630S-8PFDC6.502.750100
1691S-8BSC28.000.6101K
1705T-1.75WT14.000.0801.5K
1728T-1.75WT1.350.0603K
1730T-1.75WT6.000.04020K
1738T-1.75WT2.700.0606K
1762T-1.75WT28.000.0404K
1764T-1.75WT28.000.0404K
1767T-1.75SMD2.500.200500
1768T-1.75SMD6.0002001K
1775T-1.75SMD6.300.0751K
1813T-3.25BMN14.400.1001K
1815T-3.25BMN14.000.2003K
1816T-3.25BMN13.000.3301K
1818T-3.25BMN24.000.170250
1819T-3.25BMN28.000.0402.5K
1820T-3.25BMN28.000.1001K
1821T-3.25SMN28.000.170500
1822T-3.25BMN36.000.1001K
1828T-3.25BMN37.500.0503K
1835T-3.25BMN55.000.0505K
1847T-3.25BMN6.300.1505K
1850T-3.25BMN5.000.0901.5K
1864T-3.25BMN28.000.1701.5K
1869T-1.75WT10.000.01450K
1891T-3.25BMN14.000.240500
1892T-3.25BMN14.400.1201K
1893T-3.25BMN14.000.3307.5K
1895G-4.5BMN14.000.2702K
2102T-1.75WT18.000.04010K
2107T-1.75WT10.000.0405K
2158T-1.75WT3.000.01510K
2162T-1.75WT14.000.10010K
2169T-1.75WT2.500.35020K
2180T-1.75WT6.300.04020K
2181T-1.75WT6.300.20020K
2182T-1.75WT14.000.08040K
2187T-1.75WT28.000.0407K
2304T-1.75BP3.000.3001.5K
2307T-1.75BP6.300.2005K
2314T-1.75BP28.000.0501K
2316T-1.75BP18.000.04010K
2324T-1.75BP28.000.0404K
2335T-1.75BP14.000.08015K
2337T-1.75BP6.300.20020K
2342T-1.75BP28.000.04025K
3149T-1.75BP5.000.0605K
6803AS25T-.75WT5.000.06060K
6833AS15T-.75WT5.000.06025K
6838T-1WT28.000.0244K
6839T-1FSMD28.000.0244K
7001T-1.75BP24.000.0502K
7003T-1.75BP24.000.0502K
7153AS15T-.75WT5.000.11540K
7265T-1BP5.000.0605K
7327T-1.75BP28.000.0404K
7328T-1.75BP6.000.2001K
7330T-1.75BP14.000.0801.5K
7344T-1.75BP10.000.01450K
7349T-1.75BP6.300.2005K
7361T-1.75BP5.000.06025K
7362T-1.75BP5.000.11540K
7367T-1.75BP10.000.0405K
7370T-1.75BP18.000.04010K
7371T-1.75BP12.000.04010K
7373T-1.75BP14.000.10010K
7374T--1.75BP28.000.04010K
7375T-1.75BP3.000.01510K
7376T-1.75BP28.000.06510K
7377T-1.75BP6.300.0751K
7380T-1.75BP6.300.04030K
7381T-1.75BP6.300.20020K
7382T-1.75BP14.000.08015K
7387T-1.75BP28.000.0407K
7410T-1.75BP14.000.08015K
7839T-1BP28.000.0254K
7876T-1.75BP28.000.06025K
7931T-1.75BP1.350.0603K
7945T-1.75BP6.000.04020K
7968T-1.75BP2.500.200500
8099T-1BP18.000.02016K
8362T-1.75SMD14.000.08015K
8369T-1.75SMD28.000.06510K

Standard Line-Voltage Lamps
TypeVWBulbBase
10C7DC115-12510C-7BDC
3S6120, 1253S-6SC
6S630, 48, 115, 120, 125, 130, 135, 145, 1556S-6SC
6S6/R115-1256S-6 (red)SC
6S6/W115-1256S-6 (white)SC
6T4.5120, 1306T-4.5SC
7C7115-1257C-7SC
7C7/W115-1257C-7 (white)SC
10C7115-12510C-7SC
10S612010S-6SC
10S6/10220, 230, 2510S-6SC
6S6DC30, 120, 125, 1456S-6BDC
10S6/10DC230, 25010S-6BDC
40S11 N115-12540S-11SI
120MB1203T-2.5BMN
120MB/61206T-2.5BMN
120PSB1203T-2SL
120PS1203T-2WT
120PS/61206T-2.5WT

Indicator Lamps (each has a T-2 bulb and a slide base)
TypeVALifetime (x1000 hrs)
6PSB6.000.14020K
12PSB12.000.17012K
24PSB24.000.07310K
28PSB28.000.0405K
48PSB48.000.05010K
60PSB60.000.0507.5K
120PSB120.000.0257.5K

Neon Glow Lamps (operating circuit voltage 105-125)
Breakdown Voltage
TypeACDCBulbBaseWExternal Resistance
NE-26590T-2WT1/12150K
NE-2A6590T-2WT1/15100K
NE-2D6590T-2FSCMD1/12100K
NE-2E6590T-2WT1/12100K
NE-2H95135T-2WT1/430K
NE-2J95135T-2FSCMD1/430K
NE-2V6590T-2WT1/12100K
NE-456590T-4 1/2SC1/4None
NE-516590T-3 1/4BMN1/25220K
NE-51H95135T-3 1/4BMN1/747K
NE-8495135T-2SL1/430K
NE-120PSB9595T-2SL1/4None

 

Information derived from the 78th edition of the ARRL Handbook 2001, Copyright, 2000.

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