QJ6025NH5RP Equivalent & Substitute Parts

Part Overview

The QJ6025NH5RP is an Alternistor-class Snubberless TRIAC manufactured by Littelfuse Inc., rated for 600V off-state voltage and 25A on-state current in a Surface Mount TO-263 (D2PAK) package. This component is designed for AC switching applications requiring gate-controlled bidirectional thyristor functionality. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while preserving package compatibility and thermal operating range. The QJ6025NH5RP has one qualified manufacturer substitute available.

Key Parameters

Parameter	Value	Unit
Voltage - Off State	600	V
Current - On State (It (RMS)) (Max)	25	A
Voltage - Gate Trigger (Vgt) (Max)	1.3	V
Current - Gate Trigger (Igt) (Max)	50	mA
Current - Hold (Ih) (Max)	50	mA
Operating Temperature Range	-40 to 150	°C (TJ)
Package / Case	TO-263-3, D2PAK	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the QJ6025NH5RP is determined by the following critical parameters:

Voltage Rating (Off State): Must equal or exceed 600V to maintain blocking capability
On-State Current Rating: Must support minimum 25A RMS operation; higher ratings are acceptable
Gate Trigger Parameters: Vgt and Igt must remain within compatible ranges to ensure reliable gate control
Package Compatibility: Must use TO-263-3 (D2PAK) form factor for PCB layout compatibility
Thermal Range: Must support -40°C to 150°C junction temperature operation
Compliance Status: Must maintain RoHS3 compliance and MSL 1 rating

The T3035H-6G-TR qualifies as a substitute because it meets or exceeds all critical parameters while maintaining identical package geometry and thermal specifications.

Parameter Comparison

Parameter	QJ6025NH5RP (Main)	T3035H-6G-TR (Substitute)	Compatibility
Manufacturer	Littelfuse Inc.	STMicroelectronics	Different manufacturer
Voltage - Off State	600 V	600 V	Equivalent
Current - On State (It (RMS)) (Max)	25 A	30 A	Substitute rated higher
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1 V	Substitute rated lower
Current - Gate Trigger (Igt) (Max)	50 mA	35 mA	Substitute rated lower
Current - Hold (Ih) (Max)	50 mA	60 mA	Substitute rated higher
Current - Non Rep. Surge (50Hz)	208 A	270 A	Substitute rated higher
Current - Non Rep. Surge (60Hz)	250 A	284 A	Substitute rated higher
Operating Temperature	-40 to 150 °C (TJ)	-40 to 150 °C (TJ)	Equivalent
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

Both the QJ6025NH5RP and T3035H-6G-TR maintain Active product status with full RoHS3 compliance and REACH unaffected designation. Selection between these parts should be based on:

Availability: The T3035H-6G-TR currently has higher inventory (6058 pcs vs. 1439 pcs)
Current Margin: The T3035H-6G-TR provides 5A additional on-state current capacity, offering design margin for thermal or load variations
Gate Drive Characteristics: The T3035H-6G-TR requires lower gate trigger voltage (1V vs. 1.3V) and current (35mA vs. 50mA), potentially reducing gate drive circuit complexity
Surge Capability: The T3035H-6G-TR supports higher non-repetitive surge currents (270A/284A vs. 208A/250A)

Both parts are suitable for direct substitution in applications where the QJ6025NH5RP is specified, provided circuit design accommodates the lower gate trigger parameters of the T3035H-6G-TR.

Frequently Asked Questions (FAQ)

Q: Can the T3035H-6G-TR directly replace the QJ6025NH5RP on existing PCBs?

A: Yes. Both parts use identical TO-263-3 (D2PAK) package geometry with the same lead configuration and thermal tab placement. No PCB layout modifications are required.

Q: What is the significance of the lower gate trigger voltage on the T3035H-6G-TR?

A: The T3035H-6G-TR requires 1V maximum gate trigger voltage compared to 1.3V for the QJ6025NH5RP. This lower threshold may reduce gate drive circuit power consumption and simplify control logic, but existing gate drive circuits designed for the QJ6025NH5RP will remain functional.

Q: Are there thermal performance differences between these parts?

A: Both parts operate across the identical temperature range (-40°C to 150°C junction temperature). Thermal performance depends on PCB layout, copper area, and thermal management design rather than inherent part differences.

Q: Does the higher current rating of the T3035H-6G-TR affect circuit compatibility?

A: No. The T3035H-6G-TR's 30A on-state rating exceeds the 25A requirement, providing additional design margin. The part will not draw more current than the circuit supplies; the higher rating simply indicates greater capability.

Q: Are both parts suitable for new designs?

A: Yes. Both the QJ6025NH5RP and T3035H-6G-TR maintain Active product status, indicating ongoing manufacturer support and availability for new applications.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8541.30.0080.

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