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Specifications
Resistance @ 25℃:
30kΩ
Operating Temperature:
-55℃~+300℃
B Constant (25℃/100℃):
-
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant Tolerance:
-
B Constant (25℃/50℃):
-
Mfr. Part #:
303JG1J
Package:
DO-204AH(DO-35)
Key Attributes
Model Number:
303JG1J
Product Description
Littelfuse DO-35 Standard Series Glass Encapsulated Thermistors
Littelfuse low-cost glass encapsulated thermistors are manufactured using super stable chips hermetically sealed in a glass (DO-35 diode style) package. This design ensures excellent long-term reliability and stability, even under severe environmental or thermal conditions. Their uniform dimensions and axial lead configuration make them ideal for automated insertion equipment, offering high temperature capability up to +300C, hermetically sealed glass packaging, and high voltage insulation. Tinned CCS lead wires are solderable or weldable.
Product Attributes
- Brand: Littelfuse
- Origin: Not specified
- Material: Glass encapsulated
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Part Number | Resistance Ohms @25C | Resistance Tol. % @ 25C | R-T Curve | Temperature Coefficient (%/C) @ 25C | Beta (K) 0-50C | Beta (K) 25-85C | Dissipation Constant, Nominal (mW/C) | Thermal Time Constant, Max. - Still Air (seconds) | Thermal Time Constant, Max. - Well Stirred Oil (seconds) | Temperature Range (C) |
| 501BG1J | 500 | 5 | B | -3.31 | 2941 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 501BG1K | 500 | 10 | B | -3.31 | 2941 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 102BG1J | 1000 | 5 | B | -3.31 | 2941 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 102BG1K | 1000 | 10 | B | -3.31 | 2941 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 102EG1K | 1000 | 10 | E | -3.67 | 3263 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 102PS1G | 1000 | 2 | PTC | _ | _ | _ | 2 | 8 | 1 | -55 to +150 |
| 102PS1J | 1000 | 5 | PTC | _ | _ | _ | 2 | 8 | 1 | -55 to +150 |
| 162PS1J | 1600 | 5 | PTC | _ | _ | _ | 2 | 8 | 1 | -55 to +300 |
| 182FG1K | 1800 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 202FG1J | 2000 | 5 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 202FG1K | 2000 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 202PS1J | 2000 | 5 | PTC | _ | _ | _ | 2 | 8 | 1 | -55 to +300 |
| 222E1G1K | 2186 | 10 | E1 | -3.82 | 3320 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 252BG1K | 2500 | 10 | B | -3.3 | 2941 | _ | 2 | 5 | 0.5 | -55 to +220 |
| 252FG1J | 2500 | 5 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 252FG1K | 2500 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 282FG1K | 2800 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 302FG1K | 3000 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 302JG1K | 3000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 332FG1K | 3300 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 402FG4K | 4000 | 10 | F13 | -3.88 | 3453 | 3540 | 2 | 5 | 0.5 | -55 to +300 |
| 502E1G1K | 5000 | 10 | E1 | -3.82 | 3320 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 502FG1J | 5000 | 5 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 502FG1K | 5000 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 502JG1K | 5000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 682JG1K | 6800 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 822JG1K | 8200 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103E1G1F | 10000 | 1 | E1 | _ | 3320 | 3435 | 2 | 5 | 0.5 | -55 to +250 |
| 103E1G1K | 10000 | 10 | E1 | _ | 3320 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103FG1K | 10000 | 10 | F | -3.86 | 3419 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103GG1K | 10000 | 10 | G | -4.04 | 3575 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103JG1F | 10000 | 1 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103JG1G | 10000 | 2 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103JG1J | 10000 | 5 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103JG1K | 10000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 103JG1KE | 10000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 123GG1K | 12000 | 10 | G | -4.03 | 3575 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 123JG1K | 12000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 153JG1K | 15000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 203JG1F | 20000 | 1 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 203JG1J | 20000 | 5 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 203JG1K | 20000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 253JG1F | 25000 | 1 | J | _ | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 253JG1K | 25000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 303HG1K | 30000 | 10 | H | -4.29 | 3810 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 303JG1F | 30000 | 1 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 303JG1J | 30000 | 5 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 303JG1K | 30000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 403GG1K | 40000 | 10 | G | -3.88 | 3575 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 503JG1F | 50000 | 1 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 503JG1J | 50000 | 5 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 503JG1K | 50000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 683N1G1K | 68000 | 10 | N1 | -4.5 | 3991 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 753JG1K | 75000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104JG1F | 100000 | 1 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104JG1H | 100000 | 3 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104JG1J | 100000 | 5 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104JG1K | 100000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104LG2K | 100000 | 10 | L1 | -4.52 | 3920 | 4040 | 2 | 5 | 0.5 | -55 to +300 |
| 104N1G1K | 100000 | 10 | N1 | -4.5 | 3991 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104RG1J | 100000 | 5 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 104RG1K | 100000 | 10 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 124JG1K | 120000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 154JG1K | 150000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 204JG1K | 200000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 224JG1K | 220000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 234RG1G | 230000 | 2 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 254JG1J | 250000 | 5 | J | -4.4 | 3892 | 3435 | 2 | 5 | 0.5 | -55 to +300 |
| 254JG1K | 250000 | 10 | J | -4.4 | 3892 | _ | 2 | 2 | 0.5 | -55 to +300 |
| 304JG1K | 300000 | 10 | J | -4.4 | 3892 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 334RG1K | 330000 | 10 | R | -4.68 | 4140 | 4263 | 2 | 5 | 0.5 | -55 to +300 |
| 504RG1J | 500000 | 5 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 504RG1K | 500000 | 10 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 105RG1J | 1000000 | 5 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 105RG1K | 1000000 | 10 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 105V3G1K | 1000000 | 10 | V3 | -4.68 | 4369 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 205RG1K | 2000000 | 10 | R | -4.68 | 4140 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 205V4G1K | 2000000 | 10 | V4 | -4.85 | 4288 | _ | 2 | 5 | 0.5 | -55 to +300 |
| 375Y1G2K | 3700000 | 10 | Y1 | -5.33 | 4584 | 4800 | 2 | 5 | 0.5 | -55 to +300 |
| 505YG7K | 5000000 | 10 | Y | -5.22 | 4640 | _ | 2 | 5 | 0.5 | -55 to +300 |
Packaging Options
| Packaging Option | Packaging Code | Standard Quantity |
| Standard Tape and Reel | -TR | 5000 |
2410010200_Littelfuse-303JG1J_C17680421.pdf
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