BD9D321EFJ-E2Alternatives & Equivalent Parts
About BD9D321EFJ-E2
BD9D321EFJ-E2 is a Power Supply component manufactured by ROHM Semiconductor. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | BD9D321EFJ-E2Source | BD9D320EFJ-E2 | TPS2044AD | TUSB2046IBVF | 749022011 | TL494CDBR | PJS008-4100-0-VE |
|---|---|---|---|---|---|---|---|
| Manufacturer | ROHM Semiconductor | ROHM Semiconductor | Texas Instruments | Texas Instruments | Würth Elektronik | Texas Instruments | Yamaichi |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Quad Flat Packages | Other | Small Outline Packages | Other |
| Pin Count | 8 | 9 | 16 | 32 | 24 | 16 | 12 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | ~ 70.0°C | -25.0°C ~ 85.0°C |
| Price | $0.2700 | $0.2600 | $2.8590 | $1.3726 | $3.8988 | $0.2075 | $1.9000 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | |||||||
| Factory Lead Time | 16 Weeks | 17 Weeks | — | — | — | — | — |
| YTEOL | 8 | 8 | 15 | 15 | 15 | 0 | 8 |
| Analog IC - Other Type | SWITCHING REGULATOR | SWITCHING REGULATOR | LOAD SWITCH | — | — | SWITCHING CONTROLLER | — |
| Control Technique | PULSE WIDTH MODULATION | — | — | — | — | PULSE WIDTH MODULATION | — |
| Input Voltage-Max | 18 V | 18 V | 5.5 V | — | — | 40 V | — |
| Input Voltage-Min | 4.5 V | 4.5 V | 2.7 V | — | — | 7 V | — |
| Input Voltage-Nom | 12 V | 12 V | — | — | — | 15 V | — |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G16 | S-PQFP-G32 | — | R-PDSO-G16 | — |
| Number of Functions | 1 | 1 | 1 | — | 1 | 1 | — |
| Output Current-Max | 3 A | 3 A | — | — | — | 0.25 A | — |
| Output Voltage-Nom | 5.25 V | — | — | — | — | 5 V | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | SQUARE | — | RECTANGULAR | — |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE | FLATPACK, LOW PROFILE | — | SMALL OUTLINE, SHRINK PITCH | — |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | NOT SPECIFIED | 260 | 260 | — | NOT SPECIFIED | — |
| Surface Mount | YES | YES | YES | YES | YES | YES | — |
| Switcher Configuration | BUCK | BUCK | — | — | — | PUSH-PULL | — |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | OTHER | INDUSTRIAL | — | COMMERCIAL | — |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | — | GULL WING | — |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 0.8 mm | — | 0.65 mm | 1.1 mm |
| Terminal Position | DUAL | DUAL | DUAL | QUAD | — | DUAL | — |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | NOT SPECIFIED | 30 | 30 | — | NOT SPECIFIED | — |
| Additional Feature | — | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.765 TO 7V | — | SUPPORTS 6-MHZ OPERATION THROUGH A CRYSTAL INPUT OR A 48-MHZ INPUT CLOCK | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | — | — |
| Switching Frequency-Max | — | 700 kHz | — | — | — | 300 kHz | — |
| Pbfree Code | — | — | Yes | Yes | Yes | — | — |
| Adjustable Threshold | — | — | NO | — | — | — | — |
| JESD-609 Code | — | — | e4 | e4 | e3 | — | — |
| Number of Channels | — | — | 4 | — | — | — | — |
| Qualification Status | — | — | Not Qualified | — | — | Not Qualified | — |
| Supply Voltage-Max (Vsup) | — | — | 5.5 V | — | — | — | — |
| Supply Voltage-Min (Vsup) | — | — | 2.7 V | — | — | — | — |
| Supply Voltage-Nom (Vsup) | — | — | 3.3 V | — | — | — | — |
| Terminal Finish | — | — | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | TIN OVER NICKEL | — | — |
| ## TPS2044AD Alternates Showing results | — | — | Image | — | — | — | — |
| Date Of Intro | — | — | — | 2017-07-06 | — | — | — |
| Bus Compatibility | — | — | — | VBUS | — | — | — |
| Clock Frequency-Max | — | — | — | 6 MHz | — | — | — |
| Data Transfer Rate-Max | — | — | — | 1.5 MBps | — | — | — |
| Supply Current-Max | — | — | — | 40 mA | — | — | — |
| Supply Voltage-Max | — | — | — | 3.6 V | — | — | — |
| Supply Voltage-Min | — | — | — | 3.3 V | — | — | — |
| Supply Voltage-Nom | — | — | — | 3.3 V | — | — | — |
| Technology | — | — | — | CMOS | — | BIPOLAR | — |
| uPs/uCs/Peripheral ICs Type | — | — | — | BUS CONTROLLER, UNIVERSAL SERIAL BUS | — | — | — |
| Application | — | — | — | — | LAN | — | — |
| Height | — | — | — | — | 6.35 mm | — | — |
| Insertion Loss | — | — | — | — | 1 dB | — | — |
| Isolation Voltage | — | — | — | — | 1500 V | — | — |
| Mounting Feature | — | — | — | — | SURFACE MOUNT | — | — |
| Packing Method | — | — | — | — | TAPE & REEL | — | — |
| Primary Inductance | — | — | — | — | 350 µH | — | — |
| Transformer Type | — | — | — | — | DATACOM TRANSFORMER | — | — |
| Control Mode | — | — | — | — | — | VOLTAGE-MODE | — |
| Package Equivalence Code | — | — | — | — | — | SSOP16,.25 | — |
| ## TL494CDBR Alternates Showing results | — | — | — | — | — | Image | — |
| Board Mounting Option | — | — | — | — | — | — | SOLDER HOLDING FLANGE |
| Body Breadth | — | — | — | — | — | — | 0.122 inch |
| Body Depth | — | — | — | — | — | — | 0.839 inch |
| Body Length | — | — | — | — | — | — | 0.709 inch |
| Connector Type | — | — | — | — | — | — | PCB CONNECTOR |
| Contact Gender | — | — | — | — | — | — | FEMALE |
| Contact Pattern | — | — | — | — | — | — | RECTANGULAR |
| Contact Resistance | — | — | — | — | — | — | 100 mΩ |
| Contact Style | — | — | — | — | — | — | COMPRESSION |
| Dielectric Withstanding Voltage | — | — | — | — | — | — | 707VAC V |
| Durability | — | — | — | — | — | — | 5000 Cycles |
| Filter Feature | — | — | — | — | — | — | NO |
| Insulation Resistance | — | — | — | — | — | — | 1000000000 Ω |
| Insulator Color | — | — | — | — | — | — | BLACK |
| Insulator Material | — | — | — | — | — | — | LIQUID CRYSTAL POLYMER |
| Mating Contact Pitch | — | — | — | — | — | — | 0.043 inch |
| Mixed Contacts | — | — | — | — | — | — | NO |
| Mounting Option 1 | — | — | — | — | — | — | LOCKING |
| Mounting Style | — | — | — | — | — | — | RIGHT ANGLE |
| Mounting Type | — | — | — | — | — | — | BOARD |
| Number Of Connectors | — | — | — | — | — | — | ONE |
| Number Of PCB Rows | — | — | — | — | — | — | 1 |
| Number of Rows Loaded | — | — | — | — | — | — | 1 |
| Option | — | — | — | — | — | — | GENERAL PURPOSE |
| PCB Contact Pattern | — | — | — | — | — | — | RECTANGULAR |
| Rated Current (Signal) | — | — | — | — | — | — | 0.5 A |
| Reference Standard | — | — | — | — | — | — | UL |
| Termination Type | — | — | — | — | — | — | SURFACE MOUNT |
| Total Number of Contacts | — | — | — | — | — | — | 8 |
| UL Flammability Code | — | — | — | — | — | — | 94V-0 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for BD9D321EFJ-E2 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for BD9D321EFJ-E2 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating BD9D321EFJ-E2 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to BD9D321EFJ-E2?
Known equivalents for BD9D321EFJ-E2 include BD9D320EFJ-E2, TPS2044AD, TUSB2046IBVF. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BD9D321EFJ-E2?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify BD9D321EFJ-E2 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.