DZ2S06800L Equivalent & Substitute Parts

Part Overview

The DZ2S06800L is a 6.8 V Zener diode rated at 150 mW, manufactured by Panasonic Electronic Components in the SC-79/SOD-523 surface mount package. This component is designed for voltage regulation and protection applications in electronic circuits. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain the core electrical specifications: 6.8 V nominal Zener voltage, surface mount packaging compatibility, and comparable power dissipation ratings.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.8	V
Tolerance	±5%	-
Power - Max	150	mW
Impedance (Max)	20	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 4 V	-
Voltage - Forward (Max) @ If	1 V @ 10 mA	-
Mounting Type	Surface Mount	-
Package / Case	SC-79, SOD-523	-
RoHS Status	RoHS Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the DZ2S06800L is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage nominal value of 6.8 V (tolerance range 6.46 V to 7.14 V at ±5%)
Surface mount packaging in SC-79 or SOD-523 form factor
Power dissipation rating of 150 mW or greater
RoHS compliance status

Secondary Compatibility Factors:

Impedance (Zzt) maximum rating
Reverse leakage current specifications
Forward voltage characteristics
Operating temperature range
Moisture sensitivity level

All identified substitute parts maintain the 6.8 V Zener voltage specification and surface mount package compatibility. Variations in power rating, impedance, and tolerance are acceptable provided the substitute part meets or exceeds the minimum performance requirements of the original specification.

Parameter Comparison

Parameter	DZ2S06800L (Panasonic)	BZT585B6V8T-7 (Diodes Inc.)	BZX584C6V8_R1_00001 (Panjit)	EDZVFHT2R6.8B (Rohm)	EDZVT2R6.8B (Rohm)
Voltage - Zener (Nom)	6.8 V	6.8 V	6.8 V	6.79 V	6.8 V
Tolerance	±5%	±2%	±5%	±2.06%	±2%
Power - Max	150 mW	350 mW	200 mW	150 mW	150 mW
Impedance (Max)	20 Ohms	15 Ohms	15 Ohms	40 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 4 V	2 µA @ 4 V	2 µA @ 4 V	500 nA @ 3.5 V	500 nA @ 3.5 V
Voltage - Forward (Max) @ If	1 V @ 10 mA	1.1 V @ 100 mA	900 mV @ 10 mA	-	-
Operating Temperature	-	-65°C ~ 150°C	-55°C ~ 150°C	150°C (TJ)	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

EDZVT2R6.8B (Rohm Semiconductor) - Primary Substitute

The EDZVT2R6.8B is the most direct functional equivalent to the DZ2S06800L. Both components share identical nominal Zener voltage (6.8 V), power rating (150 mW), and surface mount packaging. The EDZVT2R6.8B offers improved tolerance (±2% versus ±5%), operates across the extended temperature range of -55°C to 150°C, and maintains ROHS3 compliance. This part is currently active in production with substantial inventory availability (101,300 units).

BZX584C6V8_R1_00001 (Panjit International Inc.) - Secondary Substitute

The BZX584C6V8_R1_00001 provides a compatible alternative with matching 6.8 V Zener voltage and ±5% tolerance. The power rating of 200 mW exceeds the original 150 mW specification, providing additional thermal margin. This part is active in production with 5,987 units in stock and operates across -55°C to 150°C.

BZT585B6V8T-7 (Diodes Incorporated) - Higher Power Alternative

The BZT585B6V8T-7 is suitable for applications requiring enhanced power dissipation capability. With a 350 mW power rating, this part accommodates higher current applications while maintaining the 6.8 V Zener voltage specification. The ±2% tolerance and 15 Ohm impedance provide superior voltage regulation characteristics. This part is active with 3,384 units available.

EDZVFHT2R6.8B (Rohm Semiconductor) - Automotive Grade Option

The EDZVFHT2R6.8B is qualified to AEC-Q101 automotive standards and carries automotive-grade designation. This part is suitable for applications requiring automotive qualification. The 6.79 V nominal voltage and ±2.06% tolerance fall within acceptable substitution parameters. Inventory availability is 20,644 units.

All substitute parts maintain SC-79/SOD-523 package compatibility, MSL 1 moisture sensitivity rating, and RoHS compliance status required for direct replacement in the original application.

Frequently Asked Questions (FAQ)

Q: Can the BZT585B6V8T-7 with 350 mW power rating be used in place of the 150 mW DZ2S06800L?

A: Yes. The higher power rating of the BZT585B6V8T-7 is compatible with applications designed for the DZ2S06800L. The substitute part can dissipate more power without thermal stress, making it suitable for the original application. The 6.8 V Zener voltage and surface mount packaging remain identical.

Q: What is the significance of the ±2% tolerance in the EDZVT2R6.8B compared to the ±5% tolerance of the DZ2S06800L?

A: The ±2% tolerance represents tighter voltage regulation. The EDZVT2R6.8B maintains Zener voltage between 6.664 V and 6.936 V, compared to the DZ2S06800L range of 6.46 V to 7.14 V. This improved tolerance provides more precise voltage regulation in applications sensitive to voltage variation.

Q: Are all substitute parts compatible with the SC-79/SOD-523 package footprint?

A: Yes. All identified substitute parts use the SC-79 or SOD-523 package designation and are compatible with the original PCB footprint. No layout modifications are required for mechanical placement.

Q: Why does the EDZVFHT2R6.8B have an automotive qualification designation?

A: The EDZVFHT2R6.8B carries AEC-Q101 automotive qualification, indicating it meets automotive industry reliability and performance standards. This qualification is relevant only for applications requiring automotive-grade components. For non-automotive applications, this designation does not affect functional compatibility.

Q: What is the difference between the EDZVFHT2R6.8B and EDZVT2R6.8B from Rohm?

A: Both parts share the same 6.8 V Zener voltage, 150 mW power rating, and EMD2 package. The EDZVFHT2R6.8B carries automotive qualification (AEC-Q101) and specifies a maximum junction temperature of 150°C. The EDZVT2R6.8B operates across -55°C to 150°C and is suitable for general industrial applications. Selection depends on application requirements for automotive qualification.

Q: Is the higher impedance (40 Ohms) of the Rohm parts a disadvantage compared to the 15-20 Ohm impedance of other substitutes?

A: Impedance differences affect voltage regulation characteristics under varying load conditions. Lower impedance provides better voltage stability across load changes. For applications with stable load conditions or where voltage regulation tolerance is not critical, the 40 Ohm impedance of Rohm parts is acceptable. For precision voltage regulation applications, the lower impedance alternatives (BZT585B6V8T-7 or BZX584C6V8_R1_00001) are preferred.

Q: Can the DZ2S06800L be replaced with any of these substitutes without circuit redesign?

A: Yes. All substitute parts maintain the 6.8 V Zener voltage specification, surface mount packaging, and MSL 1 moisture sensitivity rating. Direct replacement is possible without circuit redesign. However, application-specific requirements such as operating temperature range, power dissipation margin, or voltage regulation precision should be evaluated to select the most appropriate substitute.

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