Equivalent & Substitute Parts for 1PMT5941C/TR13

Part Overview

The 1PMT5941C/TR13 by Microchip Technology is an active, surface-mount Zener diode with a nominal Zener voltage of 47 V, rated at 3 W power dissipation and housed in a DO-216AA package. It features a tight tolerance of ±2% and a maximum impedance of 67 Ohms. Identifying alternative models is necessary to ensure continuity in assembly and production in situations such as inventory shortages, RoHS compliance requirements, or changes in supplier status.

Key Parameters

Parameter	Main Part Value
Manufacturer	Microchip Technology
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	47 V
Tolerance	±2%
Power - Max	3 W
Impedance (Max) (Zzt)	67 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 35.8 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA
Operating Temperature	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	DO-216AA
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution is determined strictly by matching all key electrical and mechanical parameters within the same product category. The substitute part 1PMT5941BT1G follows the required parameters: Zener voltage, power rating, maximum impedance, reverse leakage, forward voltage characteristics, operating temperature range, mounting type, and package. RoHS and REACH statuses must be considered for regulatory compliance.

Parameter Comparison

Parameter	1PMT5941C/TR13 (Microchip Technology)	1PMT5941BT1G (onsemi)
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	47 V	47 V
Tolerance	±2%	±5%
Power - Max	3 W	3.2 W
Impedance (Max) (Zzt)	67 Ohms	67 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 35.8 V	1 µA @ 35.8 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	1.25 V @ 200 mA
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-216AA	DO-216AA
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

For selection between the 1PMT5941C/TR13 and 1PMT5941BT1G, consider product status, RoHS compliance, and REACH status. The 1PMT5941BT1G is ROHS3 compliant, suitable for applications requiring lead-free or environmental certification. Both parts are active and have REACH unaffected status.

Frequently Asked Questions (FAQ)

Q1: What are the allowable tolerances and how do they affect substitution? A1: Tolerance for the 1PMT5941C/TR13 is ±2%, while 1PMT5941BT1G offers ±5%. Both share the same nominal voltage and impedance, but tolerance variation must align with circuit requirements.

Q2: Are the packaging and mounting types compatible? A2: Both parts use the DO-216AA case and are surface mount, ensuring mechanical compatibility in PCB layouts.

Q3: Are there differences in regulatory compliance? A3: The 1PMT5941C/TR13 is RoHS non-compliant while the 1PMT5941BT1G is ROHS3 compliant. Selection depends on compliance requirements of the end-use application.

Q4: Does the power rating impact substitutability? A4: The main part is rated for 3 W, while the substitute is rated for 3.2 W, exceeding the original specification. This ensures equivalent or improved power handling.

Q5: Are the substitute parts available in sufficient quantity? A5: The 1PMT5941BT1G is listed with 4200 units in stock, suitable for high-volume requirements.

Q6: Is the operating temperature range relevant for substitution? A6: Both parts are specified for -55°C ~ 150°C, meeting identical thermal performance criteria.

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