LINK-PP INT'L TECHNOLOGY CO., LIMITED
| Payment Terms | TT,NET30/60/90 Days |
| Supply Ability | 3KK/Month |
| Delivery Time | Stock |
| Packaging Details | T&R |
| Part NUmber | SM91502AL |
| Turns Ratio | 1:1 ±2 % |
| OCL (100 kHz, 0.1 V) | 150 µH min. to 450 µH max. |
| Working Voltage | 1000 VDC |
| Hi-Pot (Isolation) | 4300 VDC (1 mA, 60 sec.) |
| Operating Temperature | -40 °C to +125 °C |
| Brand Name | LINK-PP |
| Model Number | SM91502AL |
| Certification | UL,RoHS,Reach,ISO |
| Place of Origin | Guangdong,China |
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Product Specification
| Payment Terms | TT,NET30/60/90 Days | Supply Ability | 3KK/Month |
| Delivery Time | Stock | Packaging Details | T&R |
| Part NUmber | SM91502AL | Turns Ratio | 1:1 ±2 % |
| OCL (100 kHz, 0.1 V) | 150 µH min. to 450 µH max. | Working Voltage | 1000 VDC |
| Hi-Pot (Isolation) | 4300 VDC (1 mA, 60 sec.) | Operating Temperature | -40 °C to +125 °C |
| Brand Name | LINK-PP | Model Number | SM91502AL |
| Certification | UL,RoHS,Reach,ISO | Place of Origin | Guangdong,China |
| High Light | SM91502AL ，BMS Transformer ，isoSPI Transformer | ||
The Bourns SM91502AL is a single-channel Battery Management System (BMS) isolation transformer module featuring an integrated common mode choke for superior noise suppression. Specifically engineered for the high-safety requirements of Electric Vehicles (EV) and Energy Storage Systems (ESS), the SM91502AL supports serial daisy chain/isoSPI™ communication. With a 1000 VDC working voltage and AEC-Q200 compliance, it ensures robust signal integrity and galvanic isolation in the most demanding environments.
The SM91502AL stands out as a practical choice for BMS communication isolation because it combines electrical performance with production-ready reliability. Its specifications make it suitable for systems requiring dependable signal coupling and strong isolation characteristics.
| Parameter | Specification |
|---|---|
| Open Circuit Inductance (OCL) | 150 µH min. / 450 µH max. |
| Test Condition for OCL | 100 kHz, 0.1 V, -40 °C to +125 °C |
| Leakage Inductance | 0.5 µH max. |
| Leakage Inductance Test Condition | 100 kHz, 0.1 V |
| DCR - Transformer Side | 0.45 Ω max. |
| DCR - CM Choke Side | 0.85 Ω max. |
| Turns Ratio | 1:1 ±2% |
| Insertion Loss | -0.25 dB max. @ 4 MHz |
| Return Loss (Z out = 100 ohms) | -22 dB min. @ 4 MHz |
| Common Mode Rejection Ratio | -35 dB min. @ 1–100 MHz |
| Common Mode Rejection Ratio | -28 dB min. @ 100–200 MHz |
| Hi-Pot (1 mA, 60 sec.) | 4300 VDC |
| Working Voltage | 1000 VDC |
| Parameter | Specification |
|---|---|
| Functional Insulation | Yes |
| Operating Temperature Range | -40 °C to +125 °C |
| Storage Temperature Range | -25 °C to +85 °C |
| Moisture Sensitivity Level | 1 |
| ESD Classification (HBM) | N/A |
| Packaging | Tape & Reel |
| Reel Quantity | 800 pcs. / 13-inch reel |
| Termination | Cu/Ni/Sn |
| Compliance | RoHS compliant |
The SM91502AL BMS Transformer is well suited for designs that require isolation and stable communication inside battery monitoring networks. Common applications include:
In a Battery Management System, signal integrity and safety are non-negotiable. The SM91502AL stands out by offering functional insulation and a wide operating temperature range (-40 °C to +125 °C), making it suitable for under-the-hood automotive environments. Its low leakage inductance (0.5 µH max) ensures high-speed data accuracy, while the high CMRR protects your system from common-mode noise generated by high-power inverters.
The SM91502AL is a BMS transformer used in battery management system communication and isolation circuits, especially in IsoSPI and serial daisy chain designs.
Yes. The SM91502AL is AEC-Q200 compliant, making it suitable for automotive-grade applications.
The working voltage is 1000 VDC.
The hi-pot rating is 4300 VDC for 60 seconds at 1 mA.
It supports reference designs with Analog Devices LTC6804-1 / LTC6811 and MC33771 / MC33772.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
$30-$50 million
Employee Number:
300~600
Ecer Certification：
Verified Supplier
LINK-PP International Technology Co., Limited, founded in 1997, is a vertically integrated manufacturer specializing in Ethernet magnetic components and high-speed connectivity solutions up to 10G. With over 26 years of experience, our core products include RJ45 modular jacks, MagJacks, discrete m... LINK-PP International Technology Co., Limited, founded in 1997, is a vertically integrated manufacturer specializing in Ethernet magnetic components and high-speed connectivity solutions up to 10G. With over 26 years of experience, our core products include RJ45 modular jacks, MagJacks, discrete m...
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