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onsemi MM5Z5V1T1
- Part No.:
- MM5Z5V1T1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z5V1T1.pdf
- Description:
- DIODE ZENER 5.1V 100MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,377
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Product details
Overview
MM5Z5V1T1 from onsemi is a 5.1 V ±5% Zener diode in SOD−523 package, rated for 100 mW steady-state power dissipation, 60 Ω maximum Zener impedance at 5 mA test current, and 2.0 µA reverse leakage at 2 V. It provides precision voltage regulation and ESD protection (Class 3, >16 kV HBM) in space-constrained applications such as smartphone power rail clamping and portable device overvoltage suppression.
For engineers reviewing the MM5Z5V1T1 datasheet, MM5Z5V1T1 pinout, MM5V1T1 application, or MM5Z5V1T1 equivalent, this page delivers verified electrical parameters, thermal limits, package dimensions, marking details, and validated alternative parts - all aligned with ON Semiconductor's official MM5Z2V4T1 Series datasheet Rev. 2 (2004).
Technical Context
The MM5Z5V1T1 operates as a two-terminal voltage reference device, conducting in reverse breakdown to clamp or regulate voltage at its nominal 5.1 V Zener voltage. Its low 0.7 mm body height and 1.20 mm × 0.80 mm footprint enable integration into ultra-dense PCB layouts where board area is constrained.
It exhibits a temperature coefficient of −2.7 mV/°C and 225 pF capacitance at 0 V bias and 1 MHz, making it suitable for DC biasing and low-frequency transient suppression-not RF signal path applications. The device meets MSL 1 reflow requirements and supports 260°C peak soldering temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.8 V min / 5.1 V nom / 5.4 V max @ IZT = 5 mA - defines clamping threshold with ±5% tolerance at standard test condition |
| Power Dissipation (PD) | 100 mW @ TA = 25°C - sets maximum continuous power handling on FR-5 board without derating |
| Zener Impedance (ZZT) | 60 Ω max @ IZT = 5 mA - determines voltage regulation stiffness under dynamic load changes |
| Reverse Leakage (IR) | 2.0 µA max @ VR = 2 V - ensures minimal standby current in bias networks |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - qualifies for direct I/O line protection in handheld electronics |
| Junction Temp Range | −65°C to +150°C - supports operation in automotive under-hood and industrial ambient environments |
| Capacitance (C) | 225 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability and signal integrity |
Pinout & Package
SOD−523 surface-mount package: 1.20 mm × 0.80 mm body, 0.7 mm height, matte tin lead finish, void-free thermosetting plastic case meeting UL 94 V−0. Mounting position unrestricted; qualified for 260°C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to higher-potential node; reverse-biased during regulation; marked side of package |
| 2 (Anode) | Zener anode terminal | Connected to lower-potential node (e.g., ground or return); completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOD−523 footprint | 1.20 mm × 0.80 mm area - enables placement in tight spaces like camera modules and SIM card slots |
| Low-profile height | 0.7 mm max - avoids interference with stacked components or shield cans in slim devices |
| High ESD robustness | Class 3 (>16 kV HBM) - eliminates need for external ESD diodes in many USB and button interface designs |
| Stable temperature coefficient | −2.7 mV/°C - minimizes drift across −40°C to +85°C operating range in battery-powered systems |
| Lead-free and RoHS-compliant | 100% matte Sn finish - satisfies global environmental compliance without requiring special assembly processes |
Applications
| Smartphone Power Rail Clamping | USB Interface ESD Protection |
|---|---|
|
Use Scenario: Clamping 5 V USB VBUS line against surge transients during hot-plug events in mobile phone charging circuits. IC Role / Device Role / Timing Role: Two-terminal shunt regulator acting as primary overvoltage clamp between VBUS and GND. Use Value: Limits voltage excursion to ≤5.4 V using only 2.0 µA leakage at 2 V, preserving low-power standby behavior. |
Use Scenario: Protecting USB D+ and D− data lines from electrostatic discharge in portable accessories. IC Role / Device Role / Timing Role: Bidirectional ESD suppressor leveraging symmetric Zener characteristics in back-to-back configuration. Use Value: Delivers >16 kV HBM protection while adding only 225 pF capacitance-within USB 2.0 signal integrity budget. |
| Wearable Sensor Bias Reference | IoT Node Battery Monitoring |
|
Use Scenario: Providing stable 5.1 V reference for analog front-end amplifiers in hearable devices. IC Role / Device Role / Timing Role: Precision DC voltage reference sourcing bias current for op-amp input stages. Use Value: Maintains ±5% regulation across −40°C to +85°C with −2.7 mV/°C TC, enabling accurate sensor scaling. |
Use Scenario: Monitoring lithium-ion cell voltage via resistive divider with regulated reference in BLE tracker modules. IC Role / Device Role / Timing Role: Low-leakage Zener establishing known upper rail for ADC input scaling network. Use Value: Draws just 2.0 µA at 2 V reverse bias, extending coin-cell battery life beyond 2 years in sleep-mode operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V1 | Same 5.1 V nominal Zener voltage, but SOD-323 package (1.7 mm × 1.3 mm), 200 mW rating, 50 Ω ZZT | Larger footprint and higher power allow higher surge energy absorption, but less suitable for <1.5 mm² layout zones | Select when higher pulse power handling is required and board area permits larger SOD-323 placement |
| MMSZ5231B | SOD-123 package (3.7 mm × 1.6 mm), 500 mW rating, 17 Ω ZZT, −2.5 mV/°C TC | Substantially larger size and higher thermal mass support sustained 500 mW dissipation, not viable for ultra-thin wearables | Choose for industrial control I/O modules needing robust 500 mW clamping with tighter Zener impedance |
Compared with BZX584C5V1 and MMSZ5231B, the MM5Z5V1T1 offers the smallest PCB footprint and lowest profile among 5.1 V Zeners, trading off absolute power handling and Zener impedance for space-critical integration-ideal where volume and thickness are design constraints.
Availability
MM5Z5V1T1 is available at Aetrix Electronics and suitable for smartphone power rail clamping, USB interface ESD protection, and wearable sensor bias reference applications requiring stable component supply, consistent marking, and full traceability through tape-and-reel packaging (3000 units per reel).
Supply support for MM5Z5V1T1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MM5Z5V1T1 belongs to the MM5Z2V4T1 Series of miniature Zener regulators designed specifically for space-constrained portable electronics-emphasizing ultra-small form factor, high ESD immunity, and stable DC voltage reference performance.
FAQ
What is the Zener voltage tolerance of the MM5Z5V1T1?
The MM5Z5V1T1 has a Zener voltage range of 4.8 V (minimum) to 5.4 V (maximum) at IZT = 5 mA and TA = 25°C, corresponding to a ±5% tolerance around the nominal 5.1 V value. This tolerance remains valid across the full operating temperature range of −65°C to +150°C, as confirmed in the Electrical Characteristics table on page 3 of the official datasheet.
Does the MM5Z5V1T1 support lead-free reflow soldering?
Yes, the MM5Z5V1T1 features 100% matte tin (Sn) lead finish and is qualified for lead-free reflow soldering up to 260°C peak temperature. It meets MSL Level 1 requirements, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly-no moisture sensitivity concerns for standard SMT lines.
How is the MM5Z5V1T1 marked on the package?
The MM5Z5V1T1 is marked with "0A" on the cathode side of the SOD−523 package, per the Device Marking Information table in the datasheet. This two-character code uniquely identifies the 5.1 V variant within the MM5Z2V4T1 Series and is laser-etched or printed for automated optical inspection compatibility.
What is the maximum reverse leakage current for the MM5Z5V1T1?
The MM5Z5V1T1 specifies a maximum reverse leakage current (IR) of 2.0 µA at VR = 2 V and TA = 25°C. This low leakage ensures minimal quiescent current draw in always-on bias networks, critical for multi-year battery life in IoT sensors and wearables using the MM5Z5V1T1 as a reference element.
Can the MM5Z5V1T1 be used for bidirectional ESD protection?
Yes-the MM5Z5V1T1 can be configured in back-to-back orientation (anode-to-anode or cathode-to-cathode) to provide symmetrical ±5.1 V clamping for data-line ESD protection. Its Class 3 (>16 kV HBM) rating and 225 pF capacitance at 0 V make it suitable for USB 2.0 and I²C interfaces where low capacitance and high ESD robustness are both required.
MM5Z5V1T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±6%
- Power - Max:
- 100 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z5V1T1 FAQ
1.How can I place an order for MM5Z5V1T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z5V1T1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MM5Z5V1T1 reliable?
The price and inventory of MM5Z5V1T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z5V1T1 is usually 5 days.
3.What payment methods are accepted for MM5Z5V1T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z5V1T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z5V1T1?
MM5Z5V1T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z5V1T1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MM5Z5V1T1?
For technical support, including MM5Z5V1T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z5V1T1 requirements.
6.How does Aetrix verify that MM5Z5V1T1 is sourced from the original manufacturer or authorized distributors?
All MM5Z5V1T1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MM5Z5V1T1 meets industry standards.
7.What is the process for return or replacement of MM5Z5V1T1?
All MM5Z5V1T1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z5V1T1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MM5Z5V1T1 part is unused and in its original packaging.
Return procedure for MM5Z5V1T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z5V1T1 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MM5Z5V1ST1G
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