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onsemi MM5Z24V
- Part No.:
- MM5Z24V
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523F
- Datasheet:
-
MM5Z24V.pdf
- Description:
- DIODE ZENER 24V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:80,000
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Product details
Overview
MM5Z24V from Fairchild Semiconductor is a surface-mount Zener diode with nominal zener voltage 24 V (min 22.8 V, max 25.6 V) at test current 5 mA, dynamic impedance 70 Ω, power dissipation 200 mW, and operating temperature range −55 °C to +150 °C. It provides precise voltage regulation in compact power management circuits for industrial sensors and automotive ECUs.
For engineers reviewing the MM5Z24V datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance, low-profile SOD-523F package compatibility, thermal resistance of 500 °C/W, and leakage current ≤0.05 μA at 16.8 V reverse bias.
Technical Context
The MM5Z24V operates as a two-terminal voltage reference device, conducting in reverse breakdown when reverse-biased above its specified zener voltage. Its electrical behavior is defined by zener voltage (VZ) at IZT = 5 mA, dynamic impedance (ZZT) ≤70 Ω, and knee impedance (ZZK) ≤120 Ω at IZK = 1 mA.
It features a flat-lead SOD-523F package with cathode indicated by a band, moisture sensitivity level 1, and matte tin lead finish. The device is RoHS compliant and uses green mold compound, supporting reflow soldering per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZT | 22.8 V min / 24 V typ / 25.6 V max - defines stable regulation point under 5 mA DC test current |
| ZZT @ IZT | ≤70 Ω - limits output voltage variation under load changes near nominal regulation current |
| PD | 200 mW - maximum continuous power dissipation at TA = 25 °C on FR-4 PCB |
| IR @ VR | ≤0.05 μA at 16.8 V - ensures minimal leakage in standby or high-impedance bias networks |
| TOPR | −55 °C to +150 °C - supports operation in under-hood automotive and industrial control environments |
| RθJA | 500 °C/W - determines junction temperature rise under given power and ambient conditions |
Pinout & Package
SOD-523F is a 2-lead, ultra-small outline plastic package measuring 1.2 mm × 0.8 mm × 0.7 mm tall, with flat leads and cathode identified by a band. Designed for high-density PCB layouts and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward-biased terminal; connects to lower-potential node in regulation circuit |
| 2 | Cathode | Reverse-biased terminal marked by band; connects to regulated output or reference node |
Key Features
| Feature | Design Value |
|---|---|
| Zener voltage tolerance | ±5% (22.8–25.6 V) enables tight regulation without external trimming in 24 V rail monitoring |
| Ultra-low profile | 0.7 mm height allows use in space-constrained modules like automotive door controllers |
| Moisture Sensitivity Level 1 | No dry-pack or baking required before reflow-reduces manufacturing overhead |
| RoHS & Pb-free | Matte tin finish and green compound meet global environmental compliance requirements |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Stabilizing reference voltage for analog front-end amplifiers in pressure/temperature transducers. IC Role / Device Role / Timing Role: Voltage reference and overvoltage clamp protecting ADC input stages. Use Value: Ensures ±1% reference stability across −40 °C to +125 °C, reducing calibration drift in field-deployed sensors. | Use Scenario: Providing regulated 24 V supply rail for microcontroller I/O protection and CAN transceiver biasing. IC Role / Device Role / Timing Role: Zener shunt regulator and transient suppressor for 24 V battery-supplied subsystems. Use Value: Maintains functional operation during load-dump events up to 35 V due to low ZZT and fast response. |
| Programmable Logic Controller (PLC) Input Protection | DC-DC Converter Feedback Network |
Use Scenario: Clamping input surge voltages on 24 V digital input cards exposed to inductive switching noise. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector placed across optocoupler input terminals. Use Value: Limits transient energy to <100 nJ with ≤0.05 μA leakage, preserving input impedance integrity. | Use Scenario: Setting precise output voltage in isolated flyback converters using TL431-based feedback. IC Role / Device Role / Timing Role: Secondary-side voltage reference for optocoupler-coupled error amplifier biasing. Use Value: Enables ±2% output accuracy over line/load/temperature with minimal component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C24 | Same 24 V nominal VZ, but SOD-323 package (1.7 × 1.3 × 0.9 mm); ZZT = 80 Ω; PD = 300 mW | Larger footprint and higher power handling; less suitable for ultra-dense layouts | Select when higher power margin or legacy SOD-323 board compatibility is required |
| MMSZ5242B | 24 V nominal VZ, SOD-123 package (3.7 × 1.6 × 1.1 mm); ZZT = 30 Ω; PD = 500 mW | Higher thermal mass and lower impedance, but incompatible with fine-pitch SMT lines | Prefer for high-reliability industrial supplies where board space is not constrained |
Compared with BZX584C24 and MMSZ5242B, the MM5Z24V offers the smallest footprint and lowest profile among 24 V Zeners while maintaining adequate regulation precision and leakage performance for modern compact electronics.
Availability
MM5Z24V is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control modules, and PLC input protection requiring stable component supply and long-term lifecycle support.
Supply support for MM5Z24V 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
Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete components before its acquisition by ON Semiconductor in 2016.
The MM5Z24V belongs to Fairchild's MM5Z series of miniature Zener diodes, designed specifically for space-constrained voltage regulation and protection in automotive, industrial, and consumer electronics.
FAQ
What is the zener voltage tolerance of MM5Z24V at 5 mA test current?
The MM5Z24V has a zener voltage range of 22.8 V (minimum) to 25.6 V (maximum) at IZT = 5 mA, corresponding to a ±5% tolerance around the nominal 24 V rating. This specification is verified per Fairchild's MM5Z2V4–MM5Z75V datasheet Rev. 1.5 and applies directly to the MM5Z24V device under standard pulse-test conditions.
Does MM5Z24V support reflow soldering, and what is its moisture sensitivity level?
Yes, the MM5Z24V supports standard lead-free reflow soldering profiles and is rated at Moisture Sensitivity Level 1 (MSL 1), meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly. This eliminates pre-reflow drying steps and simplifies manufacturing for the MM5Z24V in high-volume SMT lines.
What is the maximum reverse leakage current for MM5Z24V, and at what voltage is it specified?
The MM5Z24V exhibits a maximum reverse leakage current (IR) of 0.05 μA at VR = 16.8 V, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal power loss in high-impedance bias networks and preserves accuracy in precision reference applications using the MM5Z24V.
Can MM5Z24V replace MM5Z22V or MM5Z27V in an existing design?
No direct substitution is recommended without circuit validation. The MM5Z24V has distinct zener voltage (24 V), impedance (70 Ω), and leakage (0.05 μA at 16.8 V) versus MM5Z22V (22 V, 55 Ω) and MM5Z27V (27 V, 80 Ω). Swapping may shift regulation point or affect stability in feedback loops relying on exact VZ-verify performance with the actual MM5Z24V in target conditions.
Is MM5Z24V RoHS compliant and lead-free?
Yes, the MM5Z24V is RoHS compliant and fully lead-free, featuring a matte tin (Sn) lead finish and green mold compound. These materials meet EU Directive 2011/65/EU and are documented in Fairchild's official product documentation for the MM5Z24V series.
MM5Z24V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523F
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
MM5Z24V FAQ
1.How can I place an order for MM5Z24V through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z24V 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 MM5Z24V reliable?
The price and inventory of MM5Z24V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z24V is usually 5 days.
3.What payment methods are accepted for MM5Z24V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z24V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z24V?
MM5Z24V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z24V 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 MM5Z24V?
For technical support, including MM5Z24V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z24V requirements.
6.How does Aetrix verify that MM5Z24V is sourced from the original manufacturer or authorized distributors?
All MM5Z24V 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 MM5Z24V meets industry standards.
7.What is the process for return or replacement of MM5Z24V?
All MM5Z24V units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z24V, 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 MM5Z24V part is unused and in its original packaging.
Return procedure for MM5Z24V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z24V Tags
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