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MM1W10
NextGen Components
DIODE ZENER 10V 1W SOD-123
100189 Pcs New Original In Stock
Zener Diode 10 V 1 W ±5% Surface Mount SOD-123
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5.0 / 5.0
- (430 Ratings)
MM1W10
Product Overview
13242117
DiGi Electronics Part Number
MM1W10-DGManufacturer
NextGen Components
MM1W10
Description
DIODE ZENER 10V 1W SOD-123Inventory
100189 Pcs New Original In Stock
Zener Diode 10 V 1 W ±5% Surface Mount SOD-123
Quantity
Minimum 1
Minimum 1
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MM1W10 Technical Specifications
Category
Diodes, Zener, Single Zener Diodes
Packaging
Tape & Reel (TR)
Series
MM1W
Product Status
Active
Voltage - Zener (Nom) (Vz)
10 V
Tolerance
±5%
Power - Max
1 W
Impedance (Max) (Zzt)
7 Ohms
Current - Reverse Leakage @ Vr
10 µA @ 7 V
Voltage - Forward (Vf) (Max) @ If
1.2 V @ 10 mA
Operating Temperature
-55°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
SOD-123
Supplier Device Package
SOD-123
Datasheet & Documents
Datasheets
Download MM1W10 Product Specification (PDF)
HTML Datasheet
MM1W10-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0050
Additional Information
Other Names
3372-MM1W10TR
Standard Package
6,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
La coordination logistique est remarquable, mes produits ont toujours été bien emballés et protégés.
Dec 02, 2025
Der Versand ist extrem schnell, und der Kundenservice ist stets freundlich und kompetent.
Dec 02, 2025
I was impressed by how well the item was packaged and how durable it is.
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Frequently Asked Questions (FAQ)
Can I use the MM1W10 Zener diode as a voltage reference in a precision analog circuit operating at 10 V, and what are the risks of relying on its ±5% tolerance for long-term stability?
The MM1W10 is not ideal for high-precision voltage reference applications due to its ±5% Zener tolerance and typical Zener impedance of 7 Ω, which can introduce significant error under load variations. While it can provide basic regulation in non-critical circuits, long-term drift from temperature cycling (−55°C to 150°C) and self-heating at 1 W dissipation may further degrade accuracy. For precision designs, consider a dedicated bandgap reference like the LM4040-10 or REF5010, which offer ±0.1% initial accuracy and better thermal performance. If cost constraints require using the MM1W10, add a buffer op-amp and calibrate during production to mitigate tolerance-related risks.
Is the MM1W10 a suitable drop-in replacement for the BZX84C10L in a 10 V, 500 mW surface-mount design, and what layout or thermal considerations should I account for?
The MM1W10 can replace the BZX84C10L in most 10 V applications, but with important caveats: the MM1W10 is rated for 1 W versus the BZX84C10L’s 300 mW, meaning it has a larger thermal footprint and may require more PCB copper pour for heat dissipation. Both are in SOD-123 packages, so footprint compatibility is good, but verify pad spacing and solder stencil design. Ensure adequate thermal relief on the cathode pad to prevent tombstoning during reflow. Also, the MM1W10’s higher power rating allows it to handle transient overloads better, but its 7 Ω dynamic impedance is slightly higher than the BZX84C10L’s typical 5 Ω, which may affect regulation under fast load steps.
How does the reverse leakage current of the MM1W10 (10 µA @ 7 V) impact low-power battery-operated systems, and should I be concerned about standby current drain?
At 10 µA of reverse leakage at 7 V, the MM1W10 contributes measurable standby current in battery-powered applications—especially those relying on long-life coin cells or energy harvesting. In a 3.7 V Li-ion system with a 10 V boost stage, this leakage could represent 1–2% of total quiescent draw, which may be unacceptable in ultra-low-power designs. Consider alternatives like the Diodes Inc. BZT52C10 (5 µA @ 7 V) or Nexperria BZX384-B10 (3 µA @ 7 V) for lower leakage. If the MM1W10 must be used, isolate it with a series MOSFET switch during sleep modes to cut leakage paths and preserve battery life.
What are the reliability risks of using the MM1W10 in automotive under-hood environments where junction temperatures may exceed 125°C, and how does its MSL 1 rating affect assembly?
The MM1W10’s operating range up to 150°C makes it technically suitable for under-hood use, but sustained operation near this limit accelerates Zener voltage drift and reduces long-term reliability. Thermal cycling between −40°C and 125°C+ can induce mechanical stress in the SOD-123 package, potentially leading to solder joint fatigue. While its MSL 1 (unlimited floor life) simplifies handling and eliminates bake requirements, ensure your PCB assembly process includes proper reflow profiling to avoid thermal shock. For mission-critical automotive applications, consider AEC-Q101 qualified alternatives like the Vishay TLZ10 or ON Semiconductor MMSZ5231BT1G, which offer enhanced reliability validation and tighter parametric distributions.
Can I parallel two MM1W10 diodes to increase power handling in a 2 W, 10 V regulator circuit, and what are the risks of current imbalance due to Vz mismatch?
Paralleling MM1W10 diodes to achieve 2 W capability is not recommended without current-balancing measures. Even with nominally identical 10 V ratings, unit-to-unit Vz variations within the ±5% tolerance (9.5 V to 10.5 V) can cause one diode to conduct significantly more current, leading to thermal runaway. The SOD-123 package’s limited thermal mass exacerbates this imbalance. If higher power is needed, use a single higher-power Zener like the 5 W BZX61C10 in a TO-220 package, or implement active regulation with a transistor-based shunt regulator. If paralleling is unavoidable, add small-value (0.5–1 Ω, 1% tolerance) ballast resistors in series with each MM1W10 to force current sharing, and ensure symmetrical PCB copper for thermal matching.
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MM1W10 CAD Models
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