IPD65R950CFDBTMA1 Equivalent & Substitute Parts

Part Overview

The IPD65R950CFDBTMA1 is an N-Channel 650V 3.9A MOSFET manufactured by Infineon Technologies in the CoolMOS™ series. This device is packaged in TO-252-3 (DPAK) surface mount configuration and is rated for 36.7W power dissipation at case temperature. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and production requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	650	V
Continuous Drain Current (Id) @ 25°C	3.9	A
On-State Resistance (Rds On) @ 1.5A, 10V	950	mOhm
Gate Threshold Voltage (Vgs(th)) @ 200µA	4.5	V
Gate Charge (Qg) @ 10V	14.1	nC
Input Capacitance (Ciss) @ 100V	380	pF
Power Dissipation (Max)	36.7	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-252-3 (DPAK)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the IPD65R950CFDBTMA1 is determined by the following critical parameters:

Electrical Compatibility Criteria:

Drain to Source Voltage (Vdss) must equal or exceed 650V
Continuous Drain Current (Id) must equal or exceed 3.9A at 25°C
On-State Resistance (Rds On) characteristics must support the application's switching and conduction losses
Gate Threshold Voltage (Vgs(th)) must fall within acceptable control voltage ranges
Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

Package type must be TO-252-3 (DPAK) surface mount configuration
Pin configuration must be compatible with existing PCB layouts

Regulatory Compliance:

RoHS3 compliance required
Moisture Sensitivity Level (MSL) of 1 (Unlimited) required

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and functional alternatives (different voltage or current ratings that satisfy application requirements).

Parameter Comparison

Parameter	IPD65R950CFDBTMA1	IPD65R950CFDATMA2	AOD4S60	STD7N80K5	STD9N80K5	STDLED627
Manufacturer	Infineon	Infineon	Alpha & Omega	STMicroelectronics	STMicroelectronics	STMicroelectronics
Vdss (V)	650	650	600	800	800	620
Id @ 25°C (A)	3.9	3.9	4	6	7	7
Rds On (mOhm)	950 @ 1.5A	950 @ 1.5A	900 @ 2A	1200 @ 3A	900 @ 3.5A	1200 @ 2.8A
Vgs(th) (V)	4.5 @ 200µA	4.5 @ 200µA	4.1 @ 250µA	5 @ 100µA	5 @ 100µA	4.5 @ 50µA
Qg (nC)	14.1	14.1	6	13.4	12	35
Ciss (pF)	380	380	263	360	340	890
Power Dissipation (W)	36.7	36.7	56.8	110	110	90
Operating Temp (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	to 150
Package	TO-252-3	TO-252-3	TO-252	DPAK	DPAK	DPAK
Product Status	Obsolete	Active	Not For New Designs	Active	Active	Active
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes	Yes

Engineering Selection Recommendations

Primary Equivalent (Recommended for Direct Replacement):

The IPD65R950CFDATMA2 is the primary equivalent substitute. This part maintains identical electrical specifications (650V, 3.9A, 950mOhm Rds On, 14.1nC gate charge) and identical package configuration (TO-252-3 DPAK). The IPD65R950CFDATMA2 is classified as Active product status, ensuring long-term availability and supply chain continuity. Both parts are RoHS3 compliant with MSL 1 (Unlimited) rating. The only difference is packaging format (Tape & Reel for the substitute versus bulk for the original), which does not affect electrical or mechanical compatibility.

Alternative Substitutes (Application-Dependent Selection):

The STD9N80K5 and STD7N80K5 from STMicroelectronics are functional alternatives suitable for applications where higher voltage rating (800V) and increased current capacity (7A and 6A respectively) are acceptable. Both devices maintain the same TO-252-3 DPAK package and operating temperature range. These parts are Active status with established supply availability. Selection of these alternatives requires verification that the application can tolerate the higher voltage rating and different on-state resistance characteristics.

The AOD4S60 from Alpha & Omega Semiconductor is a functional alternative with 600V rating and 4A current capacity. This part is classified as Not For New Designs, limiting its suitability for new product development. The lower voltage rating (600V versus 650V) may not be acceptable for applications requiring the full 650V specification.

The STDLED627 from STMicroelectronics offers 620V and 7A ratings but exhibits significantly higher gate charge (35nC versus 14.1nC) and input capacitance (890pF versus 380pF), resulting in different switching characteristics. This part is suitable only for applications where these parameter differences do not impact performance.

Frequently Asked Questions (FAQ)

Q: Can the IPD65R950CFDATMA2 be used as a direct replacement for the IPD65R950CFDBTMA1?

A: Yes. The IPD65R950CFDATMA2 is a parametric equivalent with identical electrical specifications and package configuration. The only difference is the packaging format (Tape & Reel versus bulk). Both parts are RoHS3 compliant and have MSL 1 rating. The IPD65R950CFDATMA2 is Active status, providing superior long-term availability compared to the obsolete IPD65R950CFDBTMA1.

Q: What are the key differences between the IPD65R950CFDBTMA1 and the STD9N80K5?

A: The STD9N80K5 has a higher drain-source voltage rating (800V versus 650V) and higher continuous drain current (7A versus 3.9A). The on-state resistance is lower (900mOhm versus 950mOhm), and gate charge is lower (12nC versus 14.1nC). These differences result in improved switching performance and higher power handling capability. The STD9N80K5 is suitable for applications where these enhanced specifications are beneficial or required.

Q: Are all substitute parts available in the same TO-252-3 package?

A: All substitute parts listed are available in TO-252-3 (DPAK) surface mount package configuration, ensuring mechanical compatibility with existing PCB layouts. Pin configuration remains consistent across all listed alternatives.

Q: Which substitute part should be selected for new product designs?

A: For new product designs, the IPD65R950CFDATMA2 is the recommended choice as the parametric equivalent. If higher voltage or current ratings are acceptable, the STD9N80K5 or STD7N80K5 are suitable alternatives with Active product status. The AOD4S60 should not be selected for new designs due to its Not For New Designs classification.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are RoHS3 compliant and have Moisture Sensitivity Level (MSL) 1 (Unlimited) rating. All parts are REACH Unaffected and classified under ECCN EAR99. These certifications ensure regulatory compliance across all listed alternatives.

Q: How do gate charge and input capacitance differences affect circuit design?

A: Gate charge (Qg) and input capacitance (Ciss) determine gate drive requirements and switching speed characteristics. The IPD65R950CFDBTMA1 and IPD65R950CFDATMA2 have identical values (14.1nC and 380pF respectively), ensuring identical gate drive circuit performance. Substitute parts with different values (such as STDLED627 with 35nC and 890pF) require gate drive circuit evaluation to ensure adequate drive capability and acceptable switching frequency performance.

Q: What is the significance of product status classification?

A: Product status indicates supply chain availability and manufacturer support. Active status parts (IPD65R950CFDATMA2, STD9N80K5, STD7N80K5, STDLED627) have ongoing production and long-term availability. Obsolete status (IPD65R950CFDBTMA1) indicates discontinued production with limited remaining inventory. Not For New Designs status (AOD4S60) indicates the part is available but not recommended for new product development.

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