CRMM4978C CR Micro 60V 5A Complementary MOSFET SOP-8
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- 60 V / 5 A continuous drain current, SOP-8 package
- Rds(on) 38 mΩ typ, 46 mΩ max at VGS = 10 V
- Qg 12.1 nC and Ciss 525 pF
- N-channel, Complementary configuration
The CR Micro CRMM4978C is a 60 V 5 A N-channel complementary MOSFET in a SOP-8 package. One N-channel and one P-channel die share the package. On-resistance is 38 mΩ typical and 46 mΩ maximum at a 10 V gate drive; 50 mΩ typical at 4.5 V, so it also works from a logic-level driver; threshold voltage spans 1.5 to 3 V.
Key Specifications
| Drain-Source Voltage (VDS) | 60 V |
| Continuous Drain Current (ID) | 5 A |
| Circuit Configuration | Complementary |
| Rds(on) @ VGS = 10 V, typ. | 38 mΩ |
| Rds(on) @ VGS = 10 V, max. | 46 mΩ |
| Rds(on) @ VGS = 4.5 V, typ. | 50 mΩ |
| Gate Threshold Voltage (VGS(th)) | 1.5 – 3 V |
| Total Gate Charge (Qg) | 12.1 nC |
| Input Capacitance (Ciss) | 525 pF |
| Channel Polarity | N-channel |
| Package | SOP-8 |
Same-Rating Selection Table
| Part Number | VDS | ID | Config | Rds 10V typ | Rds 4.5V typ | Qg | Package |
|---|---|---|---|---|---|---|---|
| CRMM4976C | 60V | 7A | Complementary | 16 | 19 | 17.7 | SOP-8 |
| CRMM4978C | 60V | 5A | Complementary | 38 | 50 | 12.1 | SOP-8 |
2 part numbers share the same 60 / SOP-8 / Complementary rating — sorted by config.
Applications
Low-voltage DC-DC converters, load switches, battery protection, and brushed or stepper motor drive.
Selection Notes
- The two dies share a package but not a thermal path. Check whether the configuration is complementary, dual, common drain or series before wiring it into a topology.
- In complementary parts the N and P dies have different Rds(on) and Qg. Match the drive separately rather than assuming symmetry.
- Common-drain parts suit load switch and battery protection circuits where the two sources tie together — the body diodes then oppose each other and block in both directions.
- Because both dies sit on one leadframe, total dissipation is limited by the package, not by the individual die ratings.
Common Questions
Is the CRMM4978C an N-channel or P-channel device?
It is N-channel. The drain-source rating is 60 V.
Can the CRMM4978C be driven from a 4.5 V logic-level gate signal?
Yes. The datasheet characterises Rds(on) at 4.5 V: 50 mΩ typical and 60 mΩ maximum.
What is the gate threshold voltage of the CRMM4978C?
VGS(th) is specified between 1.5 and 3 V. Below the lower figure the part is off; above the upper figure it is fully on at the rated current.
What package does the CRMM4978C come in?
SOP-8. Check the datasheet mechanical drawing for lead spacing and thermal pad dimensions before laying out the footprint.
How do I choose between the 2 part numbers in this rating group?
All 2 share the same voltage and package class. Sort by on-resistance first, then check gate charge: the lowest Rds(on) part is not automatically the best choice if the stage switches at high frequency. The table above lists them in ascending Rds(on) order.
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