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Specifications
Resistance:
39mΩ
Power(Watts):
3W
Temperature Coefficient:
±30ppm/℃
Operating Temperature:
-55℃~+140℃
Tolerance:
±0.5%
Mfr. Part #:
SMV-R039-0.5-PW
Key Attributes
Model Number:
SMV-R039-0.5-PW
Product Description
Product Overview
The ISA-PLAN SMV-PW series precision resistors, size 4723, are designed for high-performance applications requiring excellent long-term stability and high pulse power rating. These resistors offer 3 W permanent power at 80 C and can handle continuous current loads up to 30 A (at 3.3 mOhm). They are suitable for demanding environments, including aerospace, and meet the detail specification ESCC 4001/028. The resistors are compatible with reflow-, IR-, and wave-soldering processes and feature SnPb tinned contacts.
Product Attributes
- Brand: ISA-PLAN
- Manufacturer: Isabellenhtte Heusler GmbH & Co. KG
- Series: SMV-PW
- Size: 4723
- Contact Plating: SnPb tinned
- Certifications: ESCC 4001/028
- Mounting: Reflow-, IR-, and wave-soldering
Technical Specifications
| Specification | Value |
|---|---|
| Permanent Power Rating (at 80 C) | 3 W |
| Continuous Current Load (at 3.3 mOhm) | Up to 30 A |
| Resistance Values | 0.0033 to 1 Ohm |
| Tolerance | 0.5 % / 1 % |
| Temperature Coefficient (22-60 C) | ≤50 ppm/K for ≤10 mΩ ≤30 ppm/K for >10 mΩ |
| Applicable Temperature Range | -55 to +140 C |
| Internal Heat Resistance (Rthi) | <20 K/W |
| Isolation Voltage | 1000 V AC/DC |
| Stability (Nominal load, 2000h, TK=80 C) | <0.2% deviation |
| Mechanical Dimensions (Type SMV) | L: 12.0 +0.3/-0.1 mm W: 6.0 +0.6/-0.1 mm H: 3.4 +0.2/-0.2 mm A: 2.0 ±0.5 mm B: 4.6 ±0.3 mm C: 1.0 +0.3/-0.2 mm D: 5.0 +0.3/-0.1 mm |
| Solder Pad Dimensions (Type SMV) | l: 12.8 mm a: 2.8 mm b: 4.6 mm c: 1.8 mm d: 5.8 mm e: 1.5 mm f: 9.9 mm |
| Packaging Tape Width | 24 mm |
| Packaging Reel Size | 13 inch |
| Packaging Form of Delivery (up to 300 pcs) | Tape |
| Packaging Form of Delivery (>300 pcs) | Tape and reel |
Available Standard Resistance Values and Tolerances
(See original document for full list of ordering codes and corresponding resistance values/tolerances)
Recommended Solder Profile
| Soldering Method | Peak Temperature (C) | Time (sec) |
|---|---|---|
| Reflow-, IR- and wave-soldering | 260 | 40 |
| Reflow-, IR- and wave-soldering | 255 | 90 |
| Reflow-, IR- and wave-soldering | 217 | (Not specified for this temperature) |
2412061657_Isabellenhuette-SMV-R039-0-5-PW_C19842438.pdf
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