MAC16HCM TRIAC 600V 16A Equivalent & Substitute Parts

Part Overview

The MAC16HCM is a standard TRIAC thyristor rated for 600V off-state voltage and 16A on-state current in a TO-220-3 through-hole package. Manufactured by onsemi, this component is classified as obsolete. Due to its obsolete status and limited availability, identifying equivalent and substitute parts from active manufacturers is essential for design continuity and procurement reliability.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	16 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Non Rep. Surge 50, 60Hz (Itsm)	150A @ 60Hz
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	50 mA
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the MAC16HCM is determined by the following critical parameters:

Voltage Rating: 600V off-state voltage is mandatory for direct substitution
Current Rating: 16A on-state current (RMS) is the primary functional requirement
Gate Trigger Characteristics: Vgt ≤ 1.5V and Igt ≤ 50mA ensure gate drive compatibility
Surge Current: Itsm ≥ 150A @ 60Hz maintains transient protection capability
Package: TO-220-3 through-hole configuration for mechanical and thermal compatibility
Hold Current: Ih ≤ 50mA for consistent latching behavior

Parts are grouped into two categories:

Direct Equivalents (600V, 16A, matching all key parameters): MAC16HCMG, MAC16MG, BTA216-600B,127, BTA316-600B,127

Functional Alternatives (600V, 12A current rating with compatible gate characteristics): BTA12-600BRG, BTA12-600BWRG, BTB12-600BRG, BTB12-600BW3G, BTB12-600BWRG, BTB12-600CW3G

Parameter Comparison

Part Number	Manufacturer	Voltage (V)	Current (A)	Vgt (Max)	Igt (Max)	Itsm	Package	Product Status	RoHS Status
MAC16HCM	onsemi	600	16	1.5 V	50 mA	150A @ 60Hz	TO-220-3	Obsolete	Non-compliant
MAC16HCMG	Littelfuse Inc.	600	16	1.5 V	50 mA	150A @ 60Hz	TO-220-3	Active	ROHS3 Compliant
MAC16MG	Littelfuse Inc.	600	16	1.5 V	50 mA	150A @ 60Hz	TO-220-3	Active	ROHS3 Compliant
BTA216-600B,127	WeEn Semiconductors	600	16	1.5 V	50 mA	140A, 150A	TO-220-3	Active	RoHS Compliant
BTA316-600B,127	WeEn Semiconductors	600	16	1.5 V	50 mA	140A, 150A	TO-220-3	Active	RoHS Compliant
BTA12-600BRG	STMicroelectronics	600	12	1.3 V	50 mA	120A, 126A	TO-220-3	Active	ROHS3 Compliant
BTA12-600BWRG	STMicroelectronics	600	12	1.3 V	50 mA	120A, 126A	TO-220-3	Active	ROHS3 Compliant
BTB12-600BRG	STMicroelectronics	600	12	1.3 V	50 mA	120A, 126A	TO-220-3	Active	ROHS3 Compliant
BTB12-600BW3G	Littelfuse Inc.	600	12	1.1 V	50 mA	120A @ 60Hz	TO-220-3	Active	ROHS3 Compliant
BTB12-600BWRG	STMicroelectronics	600	12	1.3 V	50 mA	120A, 126A	TO-220-3	Active	ROHS3 Compliant
BTB12-600CW3G	Littelfuse Inc.	600	12	1.1 V	35 mA	120A @ 60Hz	TO-220-3	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (16A Rating):

MAC16HCMG and MAC16MG from Littelfuse Inc. provide pin-for-pin equivalence with identical electrical parameters. Both are active products with ROHS3 compliance, addressing the obsolescence of the original MAC16HCM. BTA216-600B,127 and BTA316-600B,127 from WeEn Semiconductors offer equivalent 16A performance with RoHS compliance and active product status.

For Current-Derated Applications (12A Rating):

When circuit design permits operation at 12A instead of 16A, the BTA12 and BTB12 series from STMicroelectronics and Littelfuse Inc. provide active, RoHS-compliant alternatives. These parts maintain 600V voltage rating and compatible gate trigger characteristics. The lower surge current rating (120A–126A versus 150A) must be evaluated against application transient requirements.

Compliance Considerations:

All recommended substitutes are RoHS compliant (ROHS3 or RoHS), addressing environmental and regulatory requirements absent in the obsolete MAC16HCM. All parts maintain TO-220-3 through-hole packaging for direct mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAC16HCMG and MAC16MG be used interchangeably with MAC16HCM?

A: Yes. Both parts match the MAC16HCM in voltage rating (600V), on-state current (16A), gate trigger voltage (1.5V max), gate trigger current (50mA max), and surge current (150A @ 60Hz). Package and pinout are identical TO-220-3 through-hole configuration.

Q: What is the difference between BTA216-600B,127 and BTA316-600B,127?

A: Both parts are electrically identical with 600V, 16A ratings and matching gate characteristics. The difference lies in the base product designation (BTA216 versus BTA316). Both are active products from WeEn Semiconductors with RoHS compliance.

Q: Can 12A-rated parts replace the 16A MAC16HCM?

A: Only if circuit design allows operation at reduced current. The BTA12 and BTB12 series maintain 600V voltage rating and compatible gate trigger parameters but are limited to 12A on-state current. Surge current is also reduced (120A–126A versus 150A). Application thermal and transient requirements must be re-evaluated.

Q: Are all substitute parts available in the same packaging?

A: Yes. All listed substitutes use TO-220-3 through-hole packaging, ensuring mechanical and thermal compatibility with the original MAC16HCM footprint.

Q: What is the significance of "Snubberless" designation on some parts?

A: BTA12-600BWRG and BTB12-600BWRG are designated as Alternistor - Snubberless types. This indicates optimized gate drive characteristics for reduced external snubber circuit requirements. Electrical parameters remain within the substitution criteria.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance reflects manufacturing process and material composition standards. All electrical parameters (voltage, current, gate characteristics) remain unchanged. RoHS compliance is a regulatory and environmental requirement, not a performance specification.

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