Metal alloy current sensing resistor Walter Elec MSH2512N2W0R008F with flame retardant epoxy coating and nickel tin terminals
MSH 2512 Series Current Sensor Resistor
The MSH 2512 series are pure metal, short electrode, two-terminal, high-power current sensing resistors designed for precise current measurement. They utilize a metal alloy resistive element with nickel/tin terminals and a flame-retardant epoxy coating meeting UL-94-V0 requirements.
Product Attributes
- Brand: MSH
- Material: Metal Alloy (Resistive Element), Ni/Sn (Terminal Electrode), Flame-retardant epoxy (Protective Coating)
- Color: Black (Protective Coating)
- Certifications: UL-94-V0 (Protective Coating)
Technical Specifications
| Part Number Series | Size (L x W) | Power Rating (Watt) | Nominal Resistance Value (m) | Resistance Tolerance (%) | TCR (ppm) | Dimensions (L x W x T) (mm) | Terminal Electrode | Operating Temperature Range () |
|---|---|---|---|---|---|---|---|---|
| MSH2512N2W0-series | 0.25 x 0.12 | 2.0 | R001~R010 (1~10) | 1% (F), 2% (G), 3% (H), 5% (J) | 100 (1~3 m), 75 (4~10 m) | 6.400.20 x 3.200.20 x 1.200.2 | Ni, Sn | -55 ~ 170 |
| MSH2512N3W0-series | 0.25 x 0.12 | 3.0 | R001~R010 (1~10) | 1% (F), 2% (G), 3% (H), 5% (J) | 100 (1~3 m), 75 (4~10 m) | 6.400.20 x 3.200.20 x 1.200.2 | Ni, Sn | -55 ~ 170 |
Reliability Test Standards
| Test Parameter | Conditions | Acceptance Criteria | Reference Standard |
|---|---|---|---|
| Short Time Over Load | 2W: R001: P=3Pr, T=252, t=5sec; R002~R010: P=5Pr, T=252, t=5sec. 3W: P=3Pr, T=252, t=5sec. | (1.0%+0.5m) | IEC60115-1 4.13 |
| High Temp. Exposure | T=+1702, t=1000h | (1.0%+0.5m) | IEC60115-1 4.25 |
| Low Temp. Storage | T=-552, t=1000h | (1.0%+0.5m) | IEC60115-1 4.25 |
| Moisture Load Life | Vtest=Vmax, T=602, RH=95%, t=90min ON, 30min OFF, 1000h | (2.0%+0.5m) | IEC60115-1 4.25 |
| Thermal Shock | [-55 30min. R.T. 3min. +150 30min. R.T. 3min ], 100 Cycles | (1.0%+0.5m) | IEC60115-1 4.19 |
| Load Life at 70 | Vtest=Vmax, T=702, t=90min ON, 30min OFF, 1000h | (2%+0.5m) | IEC60115-1 4.25 |
| Solderability | Dip into solder at T=2455, t=30.5sec. | The covered area >95% | IEC60115-1 4.17 |
| Resistance to Solder Heat | Through Reflow T=2655, t=201sec. | (1.0%+0.5m) | IEC60115-1 4.18 |
| Mechanical Shock | a=100G, t=11ms, 5 times shock | (1.0%+0.5m) | IEC60115-1 4.21 |
| Substrate Bending | Span: 90mm; Bend Width: 2mm; Test board: Glass-Epoxy, Thickness=1.6mm | (1.0%+0.5m) | IEC60115-1 4.33 |
Soldering Pad & Conditions
| Part Number Series | P (mm) | W (mm) | D (mm) | t (m) | Loading (W) |
|---|---|---|---|---|---|
| MSH2512N2W0-series | 3.18 | 3.57 | 2.11 | 105 | 2.0 |
| MSH2512N3W0-series | 3.18 | 3.57 | 2.11 | 105 | 3.0 |
Recommended Wave Solder Temperature Profile: Preheating: 100~130, max.100 sec. Soldering: 250~265 max. 10 sec. Max. Temperature: 2605, max. 10sec.
Recommended Solder Reflow Temperature Profile: Preheating: 145 15, max.120 sec. Soldering: min. 220, max. 60 sec. Max. Temperature: 2605, max. 10sec.
Rework (Hot Air): 350, 3~5 seconds.
Packaging Information
| Type Number | Quantity (pcs) | Weight (g) | Reel Diameter A5 (mm) | Hub Diameter N2 (mm) | Reel Width W11 (mm) |
|---|---|---|---|---|---|
| MSH2512N2W0-series | 1,500 | 26525 | 178 | 60 | 13 |
| MSH2512N3W0-series | 1,500 | 26525 | 178 | 60 | 13 |
Peeling Strength of Seal Tape: 0.1 1.0N (10 - 100gf).
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