Specifications
| Type | Description |
|---|---|
| Part Number | CSD19531KCS |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | TO-220 Plastic Package (KCS), 3 pins |
| Drain-to-Source Voltage | 100 V; absolute maximum rating, TA=25°C |
| Gate-to-Source Voltage | ±20 V; absolute maximum rating, TA=25°C |
| Continuous Drain Current | 100 A; package limited, TA=25°C |
| Continuous Drain Current | 110 A; silicon limited, TC=25°C |
| Continuous Drain Current | 78 A; silicon limited, TC=100°C |
| Pulsed Drain Current | 285 A; pulse duration ≤100 µs, duty cycle ≤1%, max RθJC=0.7°C/W |
| Power Dissipation | 214 W; TA=25°C |
| Operating Junction and Storage Temperature | -55 to 175 °C; TJ, Tstg |
| Single Pulse Avalanche Energy | 180 mJ; ID=60 A, L=0.1 mH, RG=25 Ω |
| Drain-to-Source Breakdown Voltage | min 100 V; VGS=0 V, ID=250 µA, TA=25°C |
| Drain-to-Source Leakage Current | max 1 µA; VGS=0 V, VDS=80 V, TA=25°C |
| Gate-to-Source Leakage Current | max 100 nA; VDS=0 V, VGS=20 V, TA=25°C |
| Gate-to-Source Threshold Voltage | min 2.2 V, typ 2.7 V, max 3.3 V; VDS=VGS, ID=250 µA, TA=25°C |
| Drain-to-Source On Resistance | typ 7.3 mΩ, max 8.8 mΩ; VGS=6 V, ID=60 A, TA=25°C |
| Drain-to-Source On Resistance | typ 6.4 mΩ, max 7.7 mΩ; VGS=10 V, ID=60 A, TA=25°C |
| Transconductance | typ 137 S; VDS=10 V, ID=60 A, TA=25°C |
| Input Capacitance | typ 2980 pF, max 3870 pF; VGS=0 V, VDS=50 V, f=1 MHz, TA=25°C |
| Output Capacitance | typ 560 pF, max 728 pF; VGS=0 V, VDS=50 V, f=1 MHz, TA=25°C |
| Reverse Transfer Capacitance | typ 13 pF, max 17 pF; VGS=0 V, VDS=50 V, f=1 MHz, TA=25°C |
| Series Gate Resistance | typ 1.3 Ω, max 2.6 Ω; TA=25°C |
| Total Gate Charge | typ 38 nC, max 49 nC; VDS=50 V, ID=60 A, VGS=10 V, TA=25°C |
| Gate-to-Drain Charge | typ 7.5 nC; VDS=50 V, ID=60 A, TA=25°C |
| Gate-to-Source Charge | typ 11.9 nC; VDS=50 V, ID=60 A, TA=25°C |
| Gate Charge at Threshold | typ 7.3 nC; VDS=50 V, ID=60 A, TA=25°C |
| Output Charge | typ 98 nC; VDS=50 V, VGS=0 V, TA=25°C |
| Turn-On Delay Time | typ 8.4 ns; VDS=50 V, VGS=10 V, IDS=60 A, RG=0 Ω, TA=25°C |
| Rise Time | typ 7.2 ns; VDS=50 V, VGS=10 V, IDS=60 A, RG=0 Ω, TA=25°C |
| Turn-Off Delay Time | typ 16 ns; VDS=50 V, VGS=10 V, IDS=60 A, RG=0 Ω, TA=25°C |
| Fall Time | typ 4.1 ns; VDS=50 V, VGS=10 V, IDS=60 A, RG=0 Ω, TA=25°C |
| Diode Forward Voltage | typ 0.9 V, max 1 V; ISD=60 A, VGS=0 V, TA=25°C |
| Reverse Recovery Charge | typ 270 nC; VDS=50 V, IF=60 A, di/dt=300 A/µs, TA=25°C |
| Reverse Recovery Time | typ 83 ns; VDS=50 V, IF=60 A, di/dt=300 A/µs, TA=25°C |
| Junction-to-Case Thermal Resistance | max 0.7 °C/W; TA=25°C |
| Junction-to-Ambient Thermal Resistance | max 62 °C/W; TA=25°C |
| Package Quantity | 50 units per tube; CSD19531KCS TO-220 Plastic Package |
| Orderable Part Number | CSD19531KCS; TO-220 (KCS), 3 pins, 50 | TUBE |
| Orderable Part Number | CSD19531KCS.B; TO-220 (KCS), 3 pins, 50 | TUBE |
| Part Marking | CSD19531KCS; package option addendum |
| Datasheet Status | request_only |
Product Overview
CSD19531KCS is a Texas Instruments N-channel power MOSFET for Power_Management designs that require a 100 V drain-to-source rating and high drain-current capability. The device is specified in a TO-220 Plastic Package (KCS) with 3 pins, and the package option addendum lists CSD19531KCS as the part marking.
The device has ±20 V gate-to-source absolute maximum rating and continuous drain-current ratings of 100 A package limited at TA=25°C, 110 A silicon limited at TC=25°C, and 78 A silicon limited at TC=100°C. Pulsed drain current is specified at 285 A for pulse duration ≤100 µs and duty cycle ≤1% with max RθJC=0.7°C/W.
Switching and drive-related data include 6.4 mΩ typical drain-to-source on resistance at VGS=10 V, 38 nC typical total gate charge, 8.4 ns typical turn-on delay, and 16 ns typical turn-off delay. Thermal limits include max 0.7°C/W junction-to-case and max 62°C/W junction-to-ambient thermal resistance.
Key Features
- 100 V drain-to-source absolute maximum rating
- ±20 V gate-to-source absolute maximum rating
- 100 A package-limited continuous drain current
- 110 A silicon-limited current at TC=25°C
- 285 A pulsed drain current rating
- 6.4 mΩ typical on resistance at VGS=10 V
- 38 nC typical total gate charge
- 8.4 ns typical turn-on delay time
- -55 to 175°C junction and storage range
- TO-220 KCS 3-pin plastic package
Typical Applications
- Power switching stages
- High-current MOSFET designs
- 100 V power rails
- TO-220 through-hole assemblies
- Fast-switching power circuits
- Body-diode conduction paths
- Avalanche-rated switching circuits
Procurement Notes
When requesting a quote for CSD19531KCS, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of device is CSD19531KCS?
CSD19531KCS is an N-channel power MOSFET from Texas Instruments in the Power_Management category. It is supplied in a TO-220 Plastic Package (KCS) with 3 pins.
What voltage and current ratings are specified?
The device has a 100 V drain-to-source absolute maximum rating and ±20 V gate-to-source rating. Continuous drain current is 100 A package limited at TA=25°C and 110 A silicon limited at TC=25°C.
What on resistance is listed for this MOSFET?
Drain-to-source on resistance is specified as typ 7.3 mΩ and max 8.8 mΩ at VGS=6 V, ID=60 A. At VGS=10 V and ID=60 A, it is typ 6.4 mΩ and max 7.7 mΩ.
What package and orderable options are listed?
The package is TO-220 Plastic Package (KCS), 3 pins. Orderable part numbers listed are CSD19531KCS and CSD19531KCS.B, each noted with TO-220 (KCS), 3 pins, 50 | TUBE.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 13, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.