MAZS082GML Zener Diode 8.2V 150mW Equivalent & Substitute Parts

Part Overview

The MAZS082GML is a surface mount Zener diode manufactured by Panasonic Electronic Components, rated at 8.2 V nominal with 150 mW maximum power dissipation in the SSMini2-F4 package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new designs or production continuity.

Substitute parts are selected based on matching nominal Zener voltage (8.2 V), compatible surface mount packaging, and electrical parameters within acceptable operating ranges. Active alternatives from manufacturers including Nexperia USA Inc., Diodes Incorporated, Rohm Semiconductor, and onsemi provide functional equivalence with enhanced availability and extended product lifecycle support.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	8.2	V
Tolerance	±2%
Power - Max	150	mW
Impedance (Max)	20	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 5 V
Voltage - Forward (Vf) (Max) @ If	1	V @ 10 mA
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAZS082GML is determined by the following critical parameters:

Primary Matching Criteria:

Nominal Zener voltage: 8.2 V (exact match required)
Voltage tolerance: ±2% to ±5% acceptable
Mounting type: Surface Mount (required)
Package compatibility: SOD-523, SOD-323F, or SOD-123F packages

Secondary Compatibility Factors:

Power dissipation rating: Minimum 150 mW (equal or greater)
Impedance (Zzt): Maximum 30 Ohms
Reverse leakage current: Maximum 700 nA @ 5 V
Forward voltage: Maximum 1.1 V @ 100 mA

Substitute parts are grouped into three categories based on package type and power rating:

Category 1 - SOD-523 Package (Direct Package Match): BZX585-B8V2,115; BZX585-B8V2,135; BZX585-C8V2,115; BZX585-C8V2,135; BZT585B8V2T-7; MM5Z8V2ST1G

Category 2 - SOD-323F Package (Larger Package, Higher Power): BZX84J-C8V2,115; PZU8.2B,115

Category 3 - SOD-123F Package (Larger Package, Higher Power): BZT52H-C8V2,115

Category 4 - EMD2 Package (Equivalent Power Rating): EDZVFHT2R8.2B

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Ir @ 5V (nA)	Vf @ 10mA (V)	Package	Status
MAZS082GML	Panasonic	8.2	±2%	150	20	100	1.0	SOD-523	Obsolete
BZX585-B8V2,115	Nexperia	8.2	±2%	300	10	700	1.1	SOD-523	Active
BZX585-B8V2,135	Nexperia	8.2	±2%	300	10	700	1.1	SOD-523	Active
BZX585-C8V2,115	Nexperia	8.2	±5%	300	10	700	1.1	SOD-523	Active
BZX585-C8V2,135	Nexperia	8.2	±5%	300	10	700	1.1	SOD-523	Active
BZT585B8V2T-7	Diodes Inc.	8.2	±2%	350	10	700	1.1	SOD-523	Active
BZT52H-C8V2,115	Nexperia	8.2	±5%	375	10	700	0.9	SOD-123F	Active
BZX84J-C8V2,115	Nexperia	8.2	±5%	550	10	700	1.1	SOD-323F	Active
PZU8.2B,115	Nexperia	8.2	±5%	310	10	500	1.1	SOD-323F	Active
MM5Z8V2ST1G	onsemi	8.2	±2%	500	15	700	0.9	SOD-523	Active
EDZVFHT2R8.2B	Rohm	8.2	±2.07%	150	30	500	N/A	EMD2	Active

Engineering Selection Recommendations

Direct Replacement (Same Package, Active Status):

For applications requiring the SOD-523 package with ±2% tolerance matching, BZX585-B8V2,115 and BZX585-B8V2,135 from Nexperia provide direct electrical and mechanical compatibility. Both parts are AEC-Q101 qualified automotive-grade components with 300 mW power rating, exceeding the original 150 mW specification. These parts maintain identical nominal Zener voltage and tolerance while offering improved impedance characteristics (10 Ohms vs. 20 Ohms).

BZT585B8V2T-7 from Diodes Incorporated offers equivalent SOD-523 packaging with ±2% tolerance and 350 mW power rating. This part is active with full RoHS3 compliance and REACH unaffected status.

Higher Power Density Alternatives (SOD-523 Package):

MM5Z8V2ST1G from onsemi provides 500 mW power dissipation in the SOD-523 package with ±2% tolerance, suitable for applications requiring increased thermal headroom. This part maintains SOD-523 compatibility while delivering significantly higher power handling capability.

Larger Package Alternatives (Enhanced Thermal Performance):

BZT52H-C8V2,115 (SOD-123F) and BZX84J-C8V2,115 (SOD-323F) offer increased power ratings (375 mW and 550 mW respectively) with larger package footprints. These parts are suitable for designs where PCB layout permits package size increase and thermal performance is a design priority. Both are AEC-Q101 qualified.

PZU8.2B,115 (SOD-323F) provides 310 mW power rating with AEC-Q100 qualification and reduced reverse leakage current (500 nA @ 5 V), beneficial for low-leakage applications.

Equivalent Power Rating Alternative (Different Package):

EDZVFHT2R8.2B from Rohm Semiconductor matches the original 150 mW power specification in the EMD2 package. This part is AEC-Q101 qualified automotive-grade with ±2.07% tolerance and active product status, suitable for applications where power rating equivalence is critical.

Compliance and Qualification:

All recommended substitute parts carry RoHS3 compliance and REACH unaffected status. Automotive-grade applications should prioritize parts with AEC-Q100 or AEC-Q101 qualification: BZX585-B8V2,115 (AEC-Q101), BZX585-B8V2,135 (AEC-Q100), BZT585B8V2T-7 (no qualification listed), BZT52H-C8V2,115 (AEC-Q101), BZX84J-C8V2,115 (AEC-Q101), PZU8.2B,115 (AEC-Q100), and EDZVFHT2R8.2B (AEC-Q101).

Frequently Asked Questions (FAQ)

Q: Can BZX585-B8V2,115 directly replace MAZS082GML without PCB modification?

A: Yes. BZX585-B8V2,115 uses the same SOD-523 package (SC-79) with identical pin configuration and footprint. No PCB layout changes are required. The part is electrically compatible with matching 8.2 V nominal voltage and ±2% tolerance.

Q: What is the difference between BZX585-B8V2,115 and BZX585-B8V2,135?

A: Both parts are electrically identical with 8.2 V nominal voltage, ±2% tolerance, 300 mW power rating, and SOD-523 packaging. The suffix designations (,115 and ,135) indicate different tape reel configurations or manufacturing date codes. Electrical performance and compatibility are equivalent.

Q: Why do substitute parts have higher power ratings than the original MAZS082GML?

A: Higher power ratings provide design margin and improved thermal performance. Zener diodes with higher power ratings can dissipate the same 150 mW specification with lower junction temperature rise, extending component lifetime and improving reliability. This is a beneficial characteristic in substitution.

Q: Can I use BZT52H-C8V2,115 (SOD-123F) as a substitute if my PCB has SOD-523 footprint?

A: No. SOD-123F and SOD-523 packages have different physical dimensions and pin spacing. PCB footprint modification is required. However, if PCB redesign is feasible, BZT52H-C8V2,115 offers higher power dissipation (375 mW) and improved thermal characteristics in a larger package.

Q: What is the significance of ±2% versus ±5% tolerance in Zener voltage?

A: ±2% tolerance provides tighter voltage regulation with narrower operating range. MAZS082GML specifies ±2%, matching BZX585-B8V2,115, BZX585-B8V2,135, BZT585B8V2T-7, and MM5Z8V2ST1G. Parts with ±5% tolerance (BZX585-C8V2 series, BZT52H-C8V2,115, BZX84J-C8V2,115, PZU8.2B,115) are acceptable for applications with wider voltage tolerance requirements.

Q: Are all substitute parts automotive-qualified?

A: Most recommended substitutes carry AEC-Q100 or AEC-Q101 automotive qualification. BZT585B8V2T-7 from Diodes Incorporated does not list automotive qualification in the provided specifications. For automotive applications, prioritize parts explicitly marked AEC-Q100 or AEC-Q101.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. All listed substitute parts carry MSL 1 rating, matching the original MAZS082GML specification. No special moisture handling procedures are required.

Q: Can EDZVFHT2R8.2B be used as a direct substitute despite different package (EMD2)?

A: EDZVFHT2R8.2B matches the original 150 mW power specification and 8.2 V nominal voltage with ±2.07% tolerance. However, the EMD2 package differs from SOD-523, requiring PCB footprint modification. This part is suitable only if PCB redesign is acceptable and the EMD2 package footprint is available.

Q: Which substitute offers the best reverse leakage performance?

A: PZU8.2B,115 and EDZVFHT2R8.2B both specify 500 nA @ 5 V reverse leakage current, compared to the original 100 nA @ 5 V. For applications requiring minimal leakage, the original specification is superior. However, 500 nA leakage is acceptable for most general-purpose Zener applications.

Q: What is the inventory status of substitute parts?

A: All listed substitute parts are in active production with substantial inventory availability: BZX585-B8V2,115 (4,100 pcs), BZX585-B8V2,135 (10,956 pcs), BZX585-C8V2,115 (5,745 pcs), BZX585-C8V2,135 (10,794 pcs), BZT585B8V2T-7 (18,400 pcs), BZT52H-C8V2,115 (8,150 pcs), BZX84J-C8V2,115 (15,216 pcs), PZU8.2B,115 (4,035 pcs), MM5Z8V2ST1G (3,960 pcs), and EDZVFHT2R8.2B (15,984 pcs).

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