ASH-M-3 SERIES
✔️ Application Scenario
ASH-M-3 manganin shunts are ideal for BMS, EV chargers, and industrial drives, delivering stable current sensing from -55℃ to 170℃.
✔️ R&D Technology
Featuring high-purity manganin alloy, ASH-M-3 achieves low TCR of ±50ppm/℃, ensuring excellent precision for 0.5mΩ and 1mΩ current sampling.
✔️ Production Strength
Fully automated production lines and 100% electrical testing ensure consistent quality, with annual capacity exceeding 300 million pieces.
✔️ Stock Availability
ASH-M-3 standard values (0.5mΩ, 1mΩ) are in stock now, available in 2000/3000pcs per reel for fast global delivery.
✔️ Cooperation Case
A leading European energy storage manufacturer adopted ASH-M-3 0.5mΩ for BMS current sampling, achieving ±0.5% accuracy and zero failures after 2000 thermal cycles.
APPROVAL SHEET
ASH-M-3 SERIES
Alloy Shunt
Version | Date | Description of amendment | Draft | Checked |
A1.0 | 8-Nov-2023 | First issue | Jiamiao Wang | Ziyang Hu |
A1.1 | 22-Nov-2023 | Correction of the thickness (D) dimensions of the product | Jiamiao Wang | Jiamiao Wang |
1.Product Description
Product name:ASH-M-3 series
Description:ASH-M-3 series Alloy Shunt provide precise current sensing with low TCR and high power, ideal for automotive and industrial applications.
1.1 Part Number Explanation
The part number of the high power precision resistor is identified by the type name, Resistance Alloy, tolerance, special id,Dimension and resistance value.
Example: ASH-M-3-1F-DP
Type | Resistance Alloy | Dimension | Resistance Value | Tolerance | Special ID |
ASH | M=Manganin | 3=2512 Unit：in | 1 Unit：mΩ |
D=±0.5% F=±1% J=±5%
| DP |
(1) Type name: ASH series
(2) Resistance Alloy:M=Manganin
(3) Dimension:3=2512
(4) Resistance：1
(5) Tolerance：D=±0.5%;F=±1%;J=±5%
(6) Special:DP
1.2 Products Dimension
(Unit：mm)
Type | Size | W （mm） | A （mm） | C （mm） | H （mm） |
ASH-M-3 | 2512 | 6.3±0.2 | 1.2±0.2 | 3.1±0.3 | ≥0.3 |
1.3 PCB-layout (Reflow-soldering)
(Unit：mm)
Solder pad type | w | c | a |
ASH-M-3 | 7 | 3.8 | 1.8 |
2. Technical Data
Size （in） | Element | Resistance | D±0.15 （mm） | *TCR | P70 °C |
2512 | Manganin | 0.5 | 1.5 | ±50 | 6 |
1.0 | 1.0 | ±50 | 6 |
*TCR（ppm/℃）：Test conditions at -40℃~+150℃；
3. Endurance Test
Iterms | Additional Requirements | Reference | Limits | |
High Temperature Operational Life | The power supply should be applied to the component intermittently for 1000 hours:90 minutes ON and 30 minutes OFF,Temperature of the Chamber: maximum specified operating temperature at 100% rated power without derating | MIL-STD-202 Method 108 | ±0.5% | |
High Temperature Exposure | 1000hrs.@T=170℃.Unpowered. | MIL-STD-202 Method 108 | ±0.5% | |
Humidity Bias | 1000hrs 85℃/85%RH。Note:Specified conditions:10% of operating power. | MIL-STD-202 Method 103 | ±0.5% | |
Temperature Cycling | 1000 Cycles (-55°C to +150°C) be measured within 24±4 hours aftertest. maximum dwell time 30min. at each temperature extreme. maximum transition time 1 min. . | JESD22-A104 | ±0.5% | |
Solderability | 245℃±5℃,5s±0.5s | J-STD-002 | 95% Coverage Minimum | |
Short Time Overload | 5×Rated power for 5 s | MIL-STD-202 Method 301 | ±0.5% | |
Resistance to Soldering Heat | 260℃±5℃，10s±1s | MIL-STD-202 Method 210 | ±0.5% | |
Mechanical Shock | 1) Pulse waveform: Half-Sine pulse. 2) Accelerate peak: 100g. 3) Pulse duration: 6ms. 4) Orientation & Shock time: ±X, ±Y, ±Z; 3 times each orientation, total 18 times | MIL-STD-202H Method 213 | ±0.5% | |
Vibration | 5 g's for 20 min, 12 cycles each of 3 orientations. Note: Use 8"X5" PCB .031" thick 7 secure points on one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. | MIL-STD-202 Method 204 | ±0.5% | |
Terminal Strength | 1) Press tool: A pointed thruster with a radius of 0.5 mm. 2) Shear force: 17.7N. 3) Duration: 60 (+1) seconds. | AEC-Q200-006 REV A | ±0.5% | |
ESD | 1) Direct Contact (DC): ±6kV; 2) Air Discharge (AD): ±12kV, ±16kV, ±25kV; | AEC-Q200-002 REV-B | ±0.5% | |
Board Flex | 1) PCB board size(H×W×T): 100mm ×40mm ×1.6mm. 2) Press tool: r = 340mm, Width = 20mm. 3) Deformation displacement: 2mm. 4) Duration: 60 (+5) s. | AEC-Q200-005 REV A | ±0.5% | |
Flame Retardance | 1) Test current: 100%, 115%, 130%, 150% (rated current). 2) Test duration: 1h. The following constitutes a failure: 1) A flame over 3.0 seconds duration; 2) An explosion; 3) A temperature above 350℃ sustained for over 10 seconds. | AEC-Q200-001 REV B | >10s for 350℃ | |
Resistance to Solvents | 1) Solvent a: 1 part (by volume) of isopropyl alcohol reagent grade and 3 parts (by volume) of a mixture of 80% (by volume) of kerosene and 20% (by volume) ethylbenzene. 2) Solvent c: 9 parts (by volume) of D-limonene and 1 part of surfactant. 3) Solvent d: 42 parts (by volume) of water 1 part (by volume) of propylene glycol monomethyl ether 1 part (by volume) of monoethanolamine. | MIL-STD-202H Method 215 | There was no missing, faded, smeared, blurred, or shifted (dislodged) with the marks. There was no crack, separation, crazing, swelling, softening, degradation on the samples. | |
4.Power Derating Curve
5.Pulse power curve
*Pusle power testing is based on ambient temperature 120°C.
6.Marking
Type | Mark | Explanation |
ASH-M-2512 | R001 1% | Resistance: 1mΩ Tolerance: ±1% |
0m50 0.5% | Resistance: 0.5mΩ Tolerance: ±0.5% |
7.Packing
Unit/mm
Size | A±0.1 | B±0.1 | W±0.3 | E±0.11 | F±0.1 | P0±0.1 | P1±0.1 | P2±0.1 | D0±0.1 | T±0.2 | Quantity (pcs) |
2512-0.5 | 3.5 | 6.7 | 16 | 1.75 | 5.5 | 2 | 4 | 8 | 1.5 | 2.0 | 2000 |
2512-1 | 1.5 | 3000 |
Size | φA | φB | φC | W | T |
2512 | 178 | 60 | 13 | 16.5 | 21 |
This document is a product specification. Contents are subject to change without notice.
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