SMDJ16C Equivalent & Substitute Parts

Part Overview

The SMDJ16C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 16V reverse standoff voltage, 27.3V maximum clamping voltage, and 3000W peak pulse power rating in a DO-214AB (SMC) package. The SMDJ16C is classified as obsolete, necessitating identification of active equivalent parts that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	16	V
Voltage - Breakdown (Min)	16.88	V
Voltage - Clamping (Max) @ Ipp	27.3	V
Current - Peak Pulse (10/1000µs)	115.4	A
Power - Peak Pulse	3000	W
Type	Zener	—
Bidirectional Channels	1	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SMDJ16C is determined by strict equivalence in the following electrical and mechanical parameters:

Voltage - Reverse Standoff: 16V (nominal)
Voltage - Clamping (Max) @ Ipp: 26V to 27.3V range
Current - Peak Pulse (10/1000µs): 57.7A to 115.4A
Power - Peak Pulse: 1500W to 3000W
Package / Case: DO-214AB, SMC (surface mount)
Type: Zener, Bidirectional
Applications: General Purpose

Substitute parts are grouped into two categories based on peak pulse current and power dissipation capacity:

Category A (Full Equivalence - 115.4A / 3000W): SMDJ16CA, SMLJ16CA, SMLJ16CA-TP, TV30C160JB-G. These parts maintain identical peak pulse current and power ratings to the SMDJ16C.

Category B (Reduced Current - 57.7A / 1500W): SMCJ16CA, SMCJ16CA-TP, SMCJ16CAE3/TR13, TV15C160JB-G. These parts operate at half the peak pulse current and power dissipation, suitable for applications with lower transient energy requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (Max) @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temp (°C)	Product Status
SMDJ16C	Littelfuse Inc.	16	27.3	115.4	3000	-65 to 150	Obsolete
SMDJ16CA	Alpha & Omega Semiconductor Inc.	16	26	115.4	3000	-55 to 150	Active
SMCJ16CA	MDD	16	26	57.7	1500	-50 to 150	Active
SMCJ16CA-TP	Micro Commercial Co	16	26	57.7	1500	-55 to 175	Active
SMCJ16CAE3/TR13	Microchip Technology	16	26	57.7	1500	-65 to 150	Active
SMLJ16CA	Bourns Inc.	16	26	115.4	3000	-55 to 150	Active
SMLJ16CA-TP	Micro Commercial Co	16	26	115.4	3000	-55 to 175	Active
TV15C160JB-G	Comchip Technology	16	26	57.69	1500	-55 to 150	Active
TV30C160JB-G	Comchip Technology	16	26	115.38	3000	-55 to 150	Active

Engineering Selection Recommendations

For applications requiring full electrical equivalence (115.4A peak pulse, 3000W power):

Select SMDJ16CA (Alpha & Omega Semiconductor Inc.), SMLJ16CA (Bourns Inc.), SMLJ16CA-TP (Micro Commercial Co), or TV30C160JB-G (Comchip Technology). All are active products with ROHS3 compliance. SMLJ16CA-TP offers the widest operating temperature range (-55 to 175°C). SMDJ16CA provides the lowest minimum operating temperature (-55°C) among full-equivalence options.

For applications tolerating reduced transient energy handling (57.7A peak pulse, 1500W power):

Select SMCJ16CA (MDD), SMCJ16CA-TP (Micro Commercial Co), SMCJ16CAE3/TR13 (Microchip Technology), or TV15C160JB-G (Comchip Technology). SMCJ16CAE3/TR13 maintains the original SMDJ16C operating temperature range (-65 to 150°C). SMCJ16CA-TP offers extended temperature capability to 175°C.

All substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited) or unaffected REACH status, ensuring regulatory compliance for new production.

Frequently Asked Questions (FAQ)

Q: Can SMCJ16CA replace SMDJ16C in all applications?

A: SMCJ16CA is electrically compatible for voltage parameters but operates at half the peak pulse current (57.7A vs. 115.4A) and power dissipation (1500W vs. 3000W). Use only in applications where transient energy is within the 1500W limit. For high-energy transient environments, select SMDJ16CA, SMLJ16CA, SMLJ16CA-TP, or TV30C160JB-G.

Q: Are all substitute parts in the same DO-214AB (SMC) package?

A: Yes. All listed substitute parts use DO-214AB (SMC) surface-mount packaging, ensuring mechanical and PCB layout compatibility with the SMDJ16C footprint.

Q: What is the difference between SMDJ16CA and SMLJ16CA?

A: Both maintain 115.4A peak pulse current and 3000W power rating. SMDJ16CA is manufactured by Alpha & Omega Semiconductor Inc. with -55 to 150°C operating range. SMLJ16CA is manufactured by Bourns Inc. with identical temperature range. Selection depends on supplier availability and procurement preference.

Q: Does clamping voltage variation affect substitution?

A: The SMDJ16C specifies 27.3V maximum clamping voltage. Substitute parts specify 26V maximum clamping voltage. This 1.3V difference is within typical design margins for general-purpose overvoltage protection. Verify application-specific clamping voltage requirements before selection.

Q: Which substitute offers the widest operating temperature range?

A: SMLJ16CA-TP and SMCJ16CA-TP both operate from -55 to 175°C, providing 25°C extended upper temperature capability compared to the SMDJ16C (-65 to 150°C).

Q: Are all substitutes available in Tape & Reel packaging?

A: Most substitutes are available in Tape & Reel (TR) packaging. SMLJ16CA-TP is supplied in Bulk packaging. Verify packaging format with supplier documentation for automated assembly requirements.

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