Applications
Temperature measurement
and compensation
Features
Wide resistance range
Cost – effective
Epoxy – coated thermistor disc
Tinned Copper lead
Options
Non-standard lead lengths
Alternative resistance ratings
Custom Specifications
Rated temperatures
and tolerances
Encapsulation (Options available on request)
E01 – Epoxy Powder Coated (Blue)
E02 – Epoxy Powder Coated (Black)
E70 – Epoxy Powder Coated (Golden Yellow)
Type of Lead (Options available on request)
GC – 30 AWG Single Strand Nickel Wire
KH – 26 AWG Silver Plated Copper Wire
KK – 24 AWG Silver Plated Copper Wire
GL – 23 AWG Single Strand Nickel Wire
HK – 24 AWG Single strand Copper Wire
Lower Temperature : 0°C
Upper Temperature : 120°C
Max Permissible Power at 25°C : 200 mW
Resistance Tolerance (ΔR/RN ) : ±1%, ±2%, ±5%
Rated Temperature (TN) : 25°C
Beta Tolerance (Δβ/βN) : ±1.5%, ±2%,
Dissipation factor in air(δth) : approx 1.5 mW/K
Thermal cooling time constant in air (τc) : 3-5s
Heat capacity (Cth) : approx 10-50 mJ/K
Thermal Response time : 10-15 s
*Max permissible current may depend upon thermistor diameter
Nominal Resistance, RN Specified at 25°C
Electrical Data
Resistance At 25°C |
Beta Value (25/85) |
| 470 | 3750 |
| 560 | 3750 |
| 680 | 3700 |
| 1000 | 3970 |
| 1200 | 3900 |
| 1700 | 3750 |
| 2100 | 3600 |
| 2200 | 3750 |
Resistance At 25°C (Ω) |
Beta Value (25/85) (K) |
2500 |
4000 |
3000 |
3977 |
10000 |
4000 |
20000 |
4300 |
30000 |
4000 |
68000 |
4250 |
Reliability Data
| Test | Standard | Test Conditions | Change in R25 (ΔR25/R25) | Remarks |
| Storage in dry heat | IEC 60068-2-2 | Storage at upper category temperature T: 100 °C t: 1000 h | < 3% | No visible damage |
| Storage in damp heat, steady state | IEC 60068 – 2- 78 | Temperature of air:40 °C Relative humidity of air: 93 % Duration: 56 days | < 1% | No visible damage |
| Rapid temperature cycling | IEC 60068 – 2- 14 | Lower test temperature: 0 °C Upper test temperature: 100 °C Number of cycles: 100 | < 2% | No visible damage |
| Long-term stability (empirical value) | Temperature: + 70°C Duration: 1000 h | < 3% | No visible damage | |
| ENDURANCE | Pmax : 200 mW t : 1000h | < 3% | No visible damage |
Part Number Identification
| PRODUCT SERIES CODE |
RESISTANCE AT 25⁰C (10 X 10² Ω) (1 KΩ) |
RES.TOL | ENCAPSULATION | TYPE OF LEAD | WIRE GUAGE |
TOTAL LENGTH 10 X 10² mm (1000 mm) |
BETA (25/85) |
| STLDT |
103 |
R5 |
E02 |
A |
L |
340 |
4000 |
STLDT *** R# E%% @@ $$$ &&&&
*** = Resistance Value at 25°C (e.g. 102- 1000Ω, 201 – 200Ω, 103 – 10kΩ)
# = Resistance Tolerance (eg. R1 – ± 1%, R5 – ±5%)
%% = Encapsulation (eg. E01 – Epoxy Powder Coated (Blue))
@@ = Type of Lead (eg. GC, G – Single strand Nickel Wire(Silver Plated) & C – 30 AWG)
$$$ = Total Length in mm (eg: 250 – 25mm Length, 401 – 400 mm Length)
&&&& = Beta Value (eg:3977K, 3830K)
