STF16NK60Z Equivalent & Substitute Parts

Part Overview

The STF16NK60Z is an N-Channel 600V 14A MOSFET manufactured by STMicroelectronics in the SuperMESH™ series, housed in a TO-220FP through-hole package. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The part delivers 40W power dissipation at case temperature and operates at a maximum junction temperature of 150°C. Substitute parts must maintain electrical compatibility across drain-source voltage, continuous drain current, on-state resistance, and gate charge characteristics while accommodating available packaging options.

Key Parameters

Parameter	STF16NK60Z	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	14	A (Tc)
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ Id, Vgs	420 mOhm @ 7A, 10V	—
Vgs(th) (Max) @ Id	4.5 V @ 50µA	—
Gate Charge (Qg) (Max) @ Vgs	86	nC @ 10V
Vgs (Max)	±30	V
Input Capacitance (Ciss) (Max) @ Vds	2650	pF @ 25V
Power Dissipation (Max)	40	W (Tc)
Operating Temperature (TJ)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack	—
RoHS Status	ROHS3 Compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the STF16NK60Z is determined by strict alignment of electrical and mechanical parameters. The critical substitution criteria are:

Electrical Parameters:

Drain-Source Voltage (Vdss): Must equal or exceed 600V
Continuous Drain Current (Id): Must support 14A or higher at 25°C
On-State Resistance (Rds On): Must not exceed 420 mOhm at specified gate voltage
Gate Charge (Qg): Lower values reduce switching losses; values up to 86 nC are acceptable
Gate-Source Voltage (Vgs): Must support ±30V or equivalent range
Input Capacitance (Ciss): Values up to 2650 pF are acceptable

Mechanical Parameters:

Mounting Type: Through-hole configuration required
Package: TO-220-3 Full Pack or compatible TO-220 variants (TO-220F, TO-220FM, TO-220FP, PG-TO220-FP)
Thermal Performance: Power dissipation of 40W or higher at case temperature

Compliance Parameters:

RoHS3 Compliance required
REACH Unaffected status required

Substitute parts are grouped by their ability to meet these criteria while maintaining active product status where available.

Parameter Comparison

Parameter	STF16NK60Z	AOTF11S60L	IPA60R600P7SXKSA1	R6011ENX	R6011KNX	SIHA12N60E-E3	TK12A60D(STA4,Q,M)
Manufacturer	STMicroelectronics	Alpha & Omega Semiconductor	Infineon Technologies	Rohm Semiconductor	Rohm Semiconductor	Vishay Siliconix	Toshiba Semiconductor
Vdss (V)	600	600	600	600	600	600	600
Id @ 25°C (A)	14	11	6	11	11	12	12
Rds On (Max) (mOhm)	420 @ 7A, 10V	399 @ 3.8A, 10V	600 @ 1.7A, 10V	390 @ 3.8A, 10V	390 @ 3.8A, 10V	380 @ 6A, 10V	550 @ 6A, 10V
Vgs(th) (Max) (V)	4.5 @ 50µA	4.1 @ 250µA	4 @ 80µA	4 @ 1mA	5 @ 1mA	4 @ 250µA	4 @ 1mA
Qg (Max) (nC)	86 @ 10V	11 @ 10V	9 @ 10V	32 @ 10V	22 @ 10V	58 @ 10V	38 @ 10V
Vgs (Max) (V)	±30	±30	±20	±20	±20	±30	±30
Ciss (Max) (pF)	2650 @ 25V	545 @ 100V	363 @ 400V	670 @ 25V	740 @ 25V	937 @ 100V	1800 @ 25V
Power Dissipation (Max) (W)	40	38	21	40	53	33	45
Operating Temperature (°C)	150	-55 to 150	-40 to 150	150	-55 to 150	-55 to 150	150
Package	TO-220FP	TO-220F	PG-TO220-FP	TO-220FM	TO-220FM	TO-220	TO-220SIS
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

R6011ENX and R6011KNX (Rohm Semiconductor) are the closest electrical equivalents to the STF16NK60Z. Both devices maintain 600V Vdss, support 11A continuous drain current, and deliver on-state resistance of 390 mOhm at 10V gate drive. R6011ENX provides 40W power dissipation matching the original part, while R6011KNX offers enhanced thermal performance at 53W. Both are housed in TO-220FM packages and carry active product status with ROHS3 compliance. The TO-220FM variant is mechanically compatible with TO-220FP applications through standard through-hole mounting.

SIHA12N60E-E3 (Vishay Siliconix) provides 12A continuous drain current with superior on-state resistance of 380 mOhm at 10V, delivering 33W power dissipation. This device is housed in a standard TO-220 package and maintains active product status with extended operating temperature range (-55°C to 150°C). ROHS3 compliance and ±30V gate voltage support ensure full compatibility.

Secondary Substitutes (Reduced Current Rating):

AOTF11S60L (Alpha & Omega Semiconductor) supports 11A continuous drain current with 399 mOhm on-state resistance and 38W power dissipation. The device features active product status, extended temperature range (-55°C to 150°C), and TO-220F packaging. Gate charge of 11 nC provides reduced switching losses compared to the original part.

TK12A60D(STA4,Q,M) (Toshiba Semiconductor) delivers 12A continuous drain current with 550 mOhm on-state resistance and 45W power dissipation in a TO-220SIS package. Active product status and ROHS3 compliance are confirmed.

Limited Substitution (Reduced Current and Power):

IPA60R600P7SXKSA1 (Infineon Technologies CoolMOS™ P7 series) supports only 6A continuous drain current with 600 mOhm on-state resistance and 21W power dissipation. This device is suitable only for applications where the 14A current requirement of the original part can be reduced. Active product status and ROHS3 compliance are maintained.

Selection Criteria:

For applications requiring full 14A current capacity, R6011ENX or R6011KNX are recommended. For applications tolerating 11-12A current, SIHA12N60E-E3, AOTF11S60L, or TK12A60D(STA4,Q,M) provide viable alternatives. All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and active product status, ensuring long-term supply availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the STF16NK60Z be directly replaced with a lower current-rated device?

A: Direct replacement is limited to applications where the circuit design tolerates reduced current capacity. The STF16NK60Z is rated for 14A continuous drain current. Substitutes such as AOTF11S60L, R6011ENX, R6011KNX, and SIHA12N60E-E3 support 11-12A, which represents a 14-21% reduction in current handling. IPA60R600P7SXKSA1 supports only 6A and is suitable only for significantly reduced current applications. Circuit analysis must confirm that the lower current rating does not compromise system performance or thermal management.

Q: Are all substitute parts compatible with TO-220FP footprints?

A: All substitute parts use TO-220 family packages (TO-220F, TO-220FM, TO-220FP, TO-220SIS, PG-TO220-FP) and are mechanically compatible with standard through-hole TO-220 mounting. Pin configurations remain consistent across these variants. PCB layout modifications are not required for package substitution.

Q: What is the significance of on-state resistance (Rds On) differences among substitutes?

A: On-state resistance directly affects power dissipation and thermal performance. The STF16NK60Z specifies 420 mOhm at 7A and 10V gate drive. Substitutes with lower Rds On values (such as SIHA12N60E-E3 at 380 mOhm) reduce conduction losses and heat generation. Substitutes with higher Rds On values (such as TK12A60D at 550 mOhm or IPA60R600P7SXKSA1 at 600 mOhm) increase power dissipation and may require enhanced thermal management. Selection depends on circuit current levels and thermal budget constraints.

Q: How does gate charge (Qg) affect switching performance?

A: Gate charge determines the energy required to switch the MOSFET on and off. Lower gate charge values reduce switching losses and enable faster switching transitions. AOTF11S60L (11 nC) and IPA60R600P7SXKSA1 (9 nC) provide significantly lower gate charge than the original STF16NK60Z (86 nC), resulting in improved switching efficiency. Higher gate charge values such as TK12A60D (38 nC) and R6011KNX (22 nC) remain acceptable for most applications but may increase switching losses compared to lower-charge alternatives.

Q: What is the impact of input capacitance (Ciss) on circuit design?

A: Input capacitance affects gate drive circuit design and switching speed. The STF16NK60Z specifies 2650 pF at 25V. Substitutes exhibit varying Ciss values depending on measurement conditions: AOTF11S60L (545 pF @ 100V), IPA60R600P7SXKSA1 (363 pF @ 400V), R6011ENX (670 pF @ 25V), and SIHA12N60E-E3 (937 pF @ 100V). Lower capacitance values reduce gate drive current requirements and enable faster switching. Gate drive circuits must be verified to supply adequate current for the selected substitute's input capacitance.

Q: Are all substitutes rated for ±30V gate-source voltage?

A: No. The STF16NK60Z supports ±30V Vgs. AOTF11S60L, SIHA12N60E-E3, TK12A60D, and R8010ANX support ±30V. IPA60R600P7SXKSA1, R6011ENX, and R6011KNX support ±20V. Gate drive circuits must not exceed the maximum Vgs rating of the selected substitute. Circuits designed for ±30V operation require substitutes with equivalent or higher Vgs ratings.

Q: What is the difference between product status "Active" and "Obsolete"?

A: Obsolete products (STF16NK60Z) are no longer manufactured and have limited remaining inventory. Active products (all listed substitutes) are in current production with assured long-term availability. Selection of active substitutes ensures supply continuity and reduces risk of design obsolescence.

Q: Do all substitutes meet RoHS3 compliance requirements?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and REACH Unaffected designation, matching the regulatory compliance of the original STF16NK60Z. All parts are suitable for applications requiring RoHS3 certification.

Q: How should thermal performance be evaluated when selecting a substitute?

A: Power dissipation ratings provide the primary thermal metric. The STF16NK60Z dissipates 40W at case temperature. R6011ENX (40W), R6011KNX (53W), and TK12A60D (45W) provide equivalent or superior thermal performance. AOTF11S60L (38W), SIHA12N60E-E3 (33W), and IPA60R600P7SXKSA1 (21W) have lower ratings. Actual thermal performance depends on junction-to-case thermal resistance, case-to-ambient thermal resistance, and heatsink design. Substitutes with lower power dissipation ratings may require enhanced heatsinking or reduced operating current to maintain equivalent junction temperatures.

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