From Speed to Efficiency: How SLKOR's MMBD4148 Redefines Switching Performance

 MMBD4148 High-Conductance, High-Speed Switching Diode

The MMBD4148 is a precision-engineered, high-speed switching diode housed in a space-saving SOT-23 surface-mount package. Designed for exceptional conductance and rapid response, it’s the perfect choice for high-frequency, fast-switching applications across a wide range of electronic circuits — from signal processing to high-speed logic. Its compact form factor ensures seamless integration into modern, space-constrained designs without compromising performance.

Features

  • Ultra-fast switching speed for high-frequency performance
  • Exceptional conductance for maximum efficiency
  • Fully compliant with JEDEC electrical standards
  • Environmentally friendly and RoHS compliant

Applications

  • High-speed switching in advanced electronics
  • Versatile use in general-purpose switching circuits

Quick Reference Data

ParameterConditionMaxUnitIR (Reverse Current)VR = 75V; Tᴀmb = 25°C5μAVR (Reverse Voltage) — 75Vtrr (Reverse Recovery Time)IF = 10mA; IR = 1mA; VR = 6V; RL = 100Ω4ns

About Slkor
 Shenzhen Slkor Micro Semicon Co., Ltd., led by visionary CEO Mr. Song Shiqiang, is powered by a top-tier R&D team from world-class institutions such as Tsinghua University (China) and Yonsei University (Korea).

Slkor specializes in both third-generation SiC power devices and mainstream semiconductor products, pushing the boundaries of performance through innovative technology and advanced materials. Our portfolio covers discrete components, ICs, diodes, transistors, power devices, and power management chips — offering high-quality domestic alternatives to global brands.

Recognized as a national high-tech enterprise, Slkor operates two flagship stores in Shenzhen’s Huaqiangbei, the heart of the world’s electronics market, serving customers worldwide with products that combine innovation, reliability, and value.

If you want, I can also make this more “marketing-friendly” with punchier language for LinkedIn/Facebook/Twitter so it reads like a product highlight rather than a datasheet. That would grab more attention on social feeds.

|| | SLKOR PN | Product name| Package| Equivalent PN| |

| — — — | — — — — — — — | — — — — — — — — | — — — — — — | — — — — — — | — — — — — — — — — — — — — — — — — -|

| 01 | MOS | IRF640 | MOS | TO-220 | IRF640NPBF |

| | | IRFR5305 | MOS | TO-252 | IRFR5305TRPBF |

| | | SL2301 | MOS | SOT-23 | CJ2301/LP2301LT1G/SI2301CDS |

| | | SL2302 | MOS | SOT-23 | CJ2302/LP2302LT1G/SI2302CDS |

| | | SL2309 | MOS | SOT-23 | LP2309LT1GVISHA/SI2309CDS |

| | | SL3409 | MOS | SOT-23 | LP3409LT2G/UMW3409/AO3409 |

| | | 2N7002 | MOS | SOT-23 | 2N7002 |

| | | 2N7002L | MOS | SOT-23 | 2N7002L |

| 02 | TRIACs | BTA06–800B | TRIACs | TO-220 | BTA06–800BWRG |

| | | BTA08–800B | TRIACs | TO-220 | BTA08–800BWRG |

| | | BTA12–600B | TRIACs | TO-220 | BTA12–600BWRG |

| | | BTA16–800B | TRIACs | TO-220 | BTA16–800BWRG |

| | | BTA24–800B | TRIACs | TO-220 | BTA24–800BWRG |

| | | BTA26–800B | TRIACs | TO-220 | BTA26–800BWRG |

| | | BTA41–800B | TRIACs | TO-3P | BTA41–800BRG |

| | | BTA41–1200B | TRIACs | TO-3P | BTA41–1200BRG |

| 03 | Diode | BAT54S | Scottky Diode | SOT-23 | BAT54S |

| | | BAT54A | Scottky Diode | SOT-23 | BAT54A |

| | | SMAJ5.0A | TVS | SMA | SMAJ5.0A-13-F 、SMAJ5.0A-E3/61 |

| | | SMAJ33CA | TVS | SMA | SMAJ33CA-13-F、3CA |

| | | MMBZ12VAL | TVS | SOT-23 | MMBZ12VAL |

| | | MMBZ15VAL | TVS | SOT-23 | MMBZ15VAL |

| | | ZMM5V1 | Zenner | LL-34 | ZMM5V1 |

| | | SD12C | TVS | SOD-323 | SDD32C12L01 |

| 04 | ESD Diode | SLESD05D6CU | ESD Diode | DFN0603 | PESD5V0V1BSF |

| | | SLESD03D6BN | ESD Diode | DFN0603 | PESD3V3V1BCSF |

| | | SLESD03D6BU | ESD Diode | DFN0603 | PESD3V3R1BSF |

| | | SLESD0501BU | ESD Diode | DFN0603 | PESD5VOF1BL |

| | | SLESD2105L | ESD Diode | SOT-23 | NUP2105LT1G |

| | | SLESD5Z3V3 | ESD Diode | SOD-523 | ESD5Z3.3T1G |

| | | NUP2105LT1G | ESD Diode | SOT-23 | NUP2105LT1G |

| | | SLESD0501CM | ESD Diode | DFN0603 | PESD5VOS1BL |

| | | SLESD0301M | ESD Diode | DFN0603 | PESD3V3T1BL |

| 05 | Transistor | SL44H11 | Transistor | TO-220–3L | D44H11 |

| | | D882 | Transistor | SOT-89 | D882 |

| | | 2SC2873 | Transistor | SOT-89 | 2SC2873 |

| | | 2SC5824-R | Transistor | SOT-89 | 2SC5824T100R |

| 06 | Power Management | LM2575S-5.0 | DC/DC | TO-263–5 | LM2575S-5.0 |

| | | LM2576S-5.0 | DC/DC | TO-263–5 | LM2576S-5.0 |

| | | LM2596S-5.0 | DC/DC | TO-263–5 | LM2596S-5.0 |

| | | SL54620RHLR | Power Management | QFN14L | TPS54620RHLR |

| | | SL2044 | Power Management | SOP-8 | U2044 |

| | | SL27511 | Driver | SOT-23 | UCC27511DBVR |

| | | SL27525 | Driver | SOP-8 | UCC27525D |

| | | SL8402 | Driver | SOT-223 | NCV8402/ZXMS6005DGQ/NSE11409-Q1 |

| | | SL27517 | Driver | SOT-23 | UCC27517DBVR |

| | | SL27523 | Driver | SOP-8 | UCC27523 |

| | | SL27524 | Driver | SOP-8 | UCC27524 |

| | | SL4139 | LED Driver | SOT-23–5 | CAT4139 |

| | | SL401 | LED Driver | SOT-23–6 | BCR401 |

| | | SL3405S | Power Electronic Switch | SOP-8 | BTS3405G |

| | | SL8366 | DC/DC | ESOP-8 | TLE8366 |

| | | SL3157XC6 | Low Voltage, Single-Pole Double-Throw Switch | SC-70–6 | TS5A3157/NC7SB3157/FSA3157/SGM3157 |

| | | SL3157XT6 | Low Voltage, Single-Pole Double-Throw Switch | SOT-23–6 | TS5A3157/NC7SB3157/FSA3157/SGM3157 |

| | | SL331S5 | General Comparator | SOT-23–5 | RS331 |

| | | SL0101S6 | Level Shifter — Auto-Bidirectional | SOT-23–6 | TXS0101/RS0101 |

| | | SL0102S8 | Level Shifter — Auto-Bidirectional | SOT-23–8 | TXS0102/RS0102 |

| | | 74LVC1G11S6 | Logic Gate — AND, NAND | SOT-23–6 | SN74LVC1G11 |

| | | 74LVC1G10S6 | Logic Gate — AND, NAND | SOT-23–6 | SN74LVC1G10 |

| | | 74LVC1G32S5 | Logic Gate — AND, NAND | SOT-23–5 | SN74LVC1G32 |

| | | 74LVC1G27S6 | Logic Gate — OR, NOR | SOT-23–6 | SN74LVC1G27 |

| | | 74LVC1G34S5 | Logic Gate — Buffer | SOT-23–5 | SN74LVC1G34 |

| | | 74LVC2G34S6 | Logic Gate — Buffer | SOT-23–6 | SN74LVC2G34 |

| | | SL27531 | Low Side Driver | SOT-23–6 | UCC27531DBVR |

| | | SL27624MS | Low Side Driver | SOP-8 | UCC27624DR |

| | | SL27714 | High/Low Side Driver | SOP-14 | UCC27714 |

| | | SL21814 | High/Low Side Driver | SOP-14 | IR21814/IRS21814 |

| | | SL2110 | High/Low Side Driver | SOP-16W | IR2110S |

| | | SL2003 | Half-Bridge Driver | SOP-8 | IRS2003S |

| | | SL2004 | Half-Bridge Driver | SOP-8 | IRS2004 |

| | | SL2103 | Half-Bridge Driver | SOP-8 | IR2103S |

| | | SL8205FC | Synchronous Buck DC-DC | SOP-8-EP | SY8205FCC |

| | | SL82C250T | CAN Chip | SOP-8 | PCA82C250T |

| | | SL65HVD230DR | CAN Chip | SOP-8 | SN65HVD230DR |

| | | SL65HVD232DR | CAN Chip | SOP-8 | SN65HVD232DR |

| | | SL65HVD233DR | CAN Chip | SOP-8 | SN65HVD233DR |

| | | SL65HVD234DR | CAN Chip | SOP-8 | SN65HVD234DR |

| | | SL3232EESE | RS232 Transceiver | SOP-16 | MAX3232E |

| | | SL65HVD08DR | RS485 Chip | SOP-8 | SN65HVD08DR |

| | | SL3088EESA | RS485 Chip | SOP-8 | MAX3088E |

| | | SL3490EESA | RS422 Chip | SOP-8 | MAX3490E |

| | | SL6802 | Display Power Management | DFN12 | BV6802 |

| | | SL5350SDR | Gate Driver Isolation | SOP-8 | UCC5350 |

| | | SL5350MDR | Gate Driver Isolation | SOP-8 | UCC5350 |

| 07 | Op-amp | SL4558S | Op-amp | SOP-8 | RC4558DRG4 |

| | | LM124D | Op-amp | SOP-14 | LM124DR |

| | | LM224D | Op-amp | SOP-14 | LM1224DR |

| | | LM324D | Op-amp | SOP-14 | LM324DR |

| | | LMV358 | Op-amp | SOP-8 | LMV358QD |

| | | LMV32 1 | Op-amp | SOT-23–5 | LMV321ILT |

| | | LM2904 | Op-amp | DIP-8 | LM2904P |

| | | SL9062C | Op-amp | SOP-8 | TLV9062 |

| | | SL9062D | Op-amp | SOT-23–8L | TLV9062 |

| | | SL722XS8 | Op-amp | SOP-8 | SGM722/LTC722/RS722 |

| | | SL2122C | Op-amp | SOP-8 | NJM2122 |

| 08 | Quartz Crystal | SL322532M9P | Quartz Crystal | SMD3225–4 | X1E0000210167 |

| | | SL322532M10P | Quartz Crystal | SMD3225–4P | X1E000021016300 |

| | | SL322512M20P | Quartz Crystal | SMD3225–4P | CJ13–120002010A20 |

| | | SL322516M9P | Quartz Crystal | SMD3225–4P | X1E000021037500 |

| | | SL322516M12P | Quartz Crystal | SMD3225–4P | X1E000021011900 |

| | | SL322524M12P | Quartz Crystal | SMD3225–4P | X1E0000210129 |

| | | SL322525M20P | Quartz Crystal | SMD3225–4P | X1E000021035200 |

| | | SL322525M12P | Quartz Crystal | SMD3225–4P | X1E000021013900 |

| 09 | Darlington | TIP122 | Darlington | TO-220 | TIP122 |

| | | TIP127 | Darlington | TO-220 | TIP127 |

| | | ULN2001D | Darlington | SOP-16 | ULN2001D1013TR |

| 10 | Hall Sensor | SLSS41F | Hall Sensor | TO-92S | SS41F |

| | | SLSS360 | Hall Sensor | SOT-23 | SS360 |

| | | SLSS451A | Hall Sensor | TO-92 | SS451A |

| | | SLSS39E | Hall Sensor | TO-92S | SS39E |

| | | SL-302B | Hall Sensor | SSIT-4 | SS41F |

| | | SL-106C | Hall Sensor | SSOT-4 | HG-106C |

| | | SL-322B | Hall Sensor | SSIP-4 | HG-322B |

| | | SL-S-TRS-5.5D1 | Infrared Thermopile Sensor | SMD | MLX90632 |

| | | SL-W-TRS-5.5D1 | Digital Infrared Thermopile Sensor | TO-46 | MLX90614BAA/BBA |

| | | SL-FW-TRS-5.5D1 | Long Distance Digital Infrared Thermopile Sensor | TO-39 | MLX90614BAF/BBF |

| 11 | Optocoupler | SL-1007 | Optocoupler | SMD-4 | TCLT1007 |

| | | SL-1008 | Optocoupler | SMD-4 | TCLT1008 |

| | | SL3H7C | Optocoupler | SOP-4 | IS3H7C |

| | | SL-1009 | Optocoupler | SMD-4 | TCLT1009 |

| | | 6N135S | Optocoupler | SMD-8 | 6N135SM |

| | | 6N136S | Optocoupler | SMD-8 | 6N136SDM |

| | | 6N137S | Optocoupler | SMD-8 | 6N137SDM |

| | | 6N136 | Optocoupler | DIP-8 | 6N136M |

| 12 | LDO | SL4949 | Linear Reg | SOP-8 | L4949E/TLF4949/NCV4949 |

| | | SL4275 | Linear Reg | TO-252 | TLE4275/MP2014/BD42754/TLE4275-Q1/TPS7B87-Q1 |

| | | SL4284 | Linear Reg | TO-252 | TLE4284 |

| | | SL9013M33SE | Linear Reg | SOT-23–5 | LP5907MFX-3.3 |

| | | SL54M33SE | Linear Reg | SOT-23–5 | LP2992IM5–3.3 |

| | | AMS1117–1.8 | Linear Reg | SOT-223SOT-89 | AMS1117–1.8 |

| | | AMS1117–1.2 | Linear Reg | SOT-223SOT-89 | AMS1117–1.2 |

| | | AMS1117–1.5 | Linear Reg | SOT-223SOT-89 | AMS1117–1.5 |

| | | LM317 | Linear Reg | TO-220 | LM317T-DGZ |

| | | SL4275-G | Linear Reg | TO-263–5 | TLE42754G/TLE4275-Q1/NCV4275C/NCV4290/NCV8675/NJW4185/BD42754 |

| | | SL4264–2 | Linear Reg | SOT-223 | TLE4264/TPS7B69-Q1/LM2936Q/NCV8664/NCV4266–2C |

| | | SL42744D | Linear Reg | TO-252–3 | TLE42744/NJW4187/NJW4185/NCV7800/NCV4274/TL720M05-Q1 |

| | | SL42764 | Linear Reg | TO-252–5 | TLE42764/TPS7B86-Q1/NCV4276C/NJW4186 |

For more inquries please reach out : sales03@slkormicro.com

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