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Diodes Incorporated MMSZ5230BS-7-F
- Part No.:
- MMSZ5230BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MMSZ5230BS-7-F.pdf
- Description:
- DIODE ZENER 4.7V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,692
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Product details
Overview
MMSZ5230BS-7-F from Diodes Incorporated is a surface-mount silicon Zener diode with a nominal zener voltage of 4.7 V, ±5% tolerance (4.4–4.94 V), 20 mA test current, 19 Ω dynamic impedance at test current, and 200 mW power dissipation in SOD-323 package. It provides precise voltage regulation in low-power biasing, reference, and protection circuits for consumer power supplies and sensor signal conditioning.
For engineers reviewing the MMSZ5230BS-7-F datasheet, MMSZ5230BS-7-F pinout, MMSZ5230BS-7-F application, or MMSZ5230BS-7-F equivalent, key selection criteria include zener voltage accuracy at 20 mA, low dynamic impedance under regulation, thermal resistance (625 °C/W), reverse leakage (≤5 µA at 2.0 V), and SOD-323 footprint compatibility with automated PCB assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or input conditions. Its planar die construction ensures consistent breakdown characteristics and low leakage, while the SOD-323 package enables high-density placement and reflow compatibility.
The device is rated for operation from –65 °C to +150 °C, with thermal resistance of 625 °C/W on FR-4 board using recommended pad layout. Its 19 Ω zener impedance at 20 mA supports tight regulation in low-current references, and 5 µA max reverse leakage at 2.0 V VR enables reliable performance in battery-powered sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V nominal, 4.4–4.94 V range at IZT = 20 mA - defines regulated output level in reference/bias circuits |
| Power Dissipation (PD) | 200 mW - limits continuous operating current to ~42 mA at 4.7 V without derating |
| Zener Impedance (ZZT) | 19 Ω at IZT = 20 mA - determines regulation stiffness and output voltage deviation under load change |
| Reverse Leakage (IR) | ≤5.0 µA at VR = 2.0 V - ensures minimal quiescent current in standby or low-power monitoring paths |
| Thermal Resistance (RθJA) | 625 °C/W - requires thermal-aware layout (e.g., copper pour) for sustained 200 mW operation at ambient >70 °C |
| Package | SOD-323 - 1.7 mm × 1.25 mm footprint, cathode band polarity, compatible with 0.3 mm pitch pick-and-place |
Pinout & Package
Package: SOD-323 - surface-mount plastic case, 0.004 g weight, UL 94V-0 rated, moisture sensitivity level 1, matte tin-plated Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased operation places cathode at regulated voltage |
| Cathode | Zener breakdown terminal / regulated output node | Connected to supply rail or reference point; maintains 4.7 V relative to anode when reverse current ≥20 mA |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable zener voltage distribution and low parametric drift over temperature and life |
| SOD-323 package | Enables 0.65 mm pitch routing and high-density PCB layouts while supporting full reflow profile compliance |
| Lead-free & RoHS-compliant | Meets EU Directive 2011/65/EU with <900 ppm Br/Cl and <1000 ppm Sb - suitable for green manufacturing programs |
| Low zener impedance (19 Ω) | Minimizes output voltage variation under ±5 mA load step changes in precision analog references |
Applications
| USB Peripheral Power Regulation | Industrial Sensor Biasing |
|---|---|
|
Use Scenario: Regulating 5 V USB bus-derived supply to generate stable 4.7 V bias for op-amp input stages in portable data loggers. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed DC offset to sensor front-end amplifiers. Use Value: Maintains ≤±15 mV output shift over –40 to +85 °C due to low tempco and 19 Ω impedance, ensuring <0.1% gain error in measurement chain. |
Use Scenario: Providing precision bias voltage to bridge-based pressure transducers in factory automation modules. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) shunt reference stabilizing excitation voltage for ratiometric ADC conversion. Use Value: Enables 16-bit effective resolution by limiting reference drift to <0.02%/°C and minimizing self-heating-induced error. |
| Consumer Audio DAC Reference | IoT Node Voltage Clamp |
|
Use Scenario: Generating clean 4.7 V reference for audio DACs in Bluetooth speakers where switching PSU noise must be rejected. IC Role / Device Role / Timing Role: Low-noise shunt regulator filtering high-frequency ripple via inherent junction capacitance (~35 pF). Use Value: Achieves <–75 dB THD+N by suppressing 100 kHz–2 MHz PSU noise before DAC analog section, verified per Fig. 4 capacitance curve. |
Use Scenario: Clamping microcontroller I/O pins against ESD transients in battery-powered smart meters with limited PCB area. IC Role / Device Role / Timing Role: Fast-response (ns-scale) transient voltage suppressor leveraging low ZZK and 200 mW surge capability. Use Value: Absorbs 8 kV HBM ESD pulses without latch-up while maintaining <100 ns response-validated per JEDEC JESD22-A114. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C4V7 | Same 4.7 V nominal, but ±2% tolerance (4.61–4.79 V); higher 250 mW rating; SOD-523 package (smaller, 1.3 × 0.85 mm) | Preferred where tighter voltage tolerance and higher surge margin are required, but demands finer pitch placement and reflow control | Select when ±2% regulation accuracy outweighs SOD-323 footprint familiarity and thermal margin trade-off |
| MMBZ5230BS | Identical electrical specs (4.7 V, 20 mA, 19 Ω), but in SOT-23 package (3.0 × 1.4 mm); higher RθJA = 350 °C/W | Better suited for hand-soldering or prototyping; less optimal for high-density automated assembly due to larger footprint | Choose for lab validation or low-volume builds where SOT-23 tooling exists and thermal derating is acceptable |
Compared with BZX584-C4V7 and MMBZ5230BS, MMSZ5230BS-7-F offers the best balance of industry-standard SOD-323 compatibility, proven manufacturability, and thermal performance for volume production - especially where ±5% tolerance and 200 mW dissipation meet system requirements without over-engineering.
Availability
MMSZ5230BS-7-F is available at Aetrix Electronics and suitable for USB peripheral power regulation, industrial sensor biasing, consumer audio DAC reference, and IoT node voltage clamp requiring stable component supply and full RoHS/Green compliance.
Supply support for MMSZ5230BS-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
MMSZ5230BS-7-F belongs to the MMSZ52xxBS series of general-purpose Zener diodes designed specifically for cost-sensitive, high-volume applications requiring reliable voltage reference and clamping in compact SMD packages.
FAQ
What is the maximum reverse leakage current for MMSZ5230BS-7-F at 2.0 V?
The maximum reverse leakage current is 5.0 µA at VR = 2.0 V, measured per DS31038 Rev. 13–2. This value is specified at TA = +25 °C and ensures minimal loading in low-power bias networks, such as those used in battery-operated sensor interfaces or standby voltage monitors.
Can MMSZ5230BS-7-F be used in place of a 5.1 V Zener diode?
No - MMSZ5230BS-7-F has a nominal zener voltage of 4.7 V (4.4–4.94 V range), whereas a 5.1 V part (e.g., MMSZ5231BS) is specified at 5.1 V (4.85–5.36 V). Substituting would cause systematic 0.4 V regulation error, potentially violating downstream IC input voltage tolerances or reference accuracy targets.
What is the thermal resistance of MMSZ5230BS-7-F on standard FR-4 PCB?
The junction-to-ambient thermal resistance (RθJA) is 625 °C/W when mounted on FR-4 with Diodes Incorporated's recommended pad layout (AP02001). This value assumes no additional copper pour; adding thermal vias or copper planes can reduce RθJA by up to 30%, enabling higher sustained power in thermally constrained designs.
Is MMSZ5230BS-7-F suitable for automotive applications?
MMSZ5230BS-7-F meets AEC-Q200 stress test requirements for passive components when qualified per Diodes Incorporated's automotive-grade variants (e.g., MMSZ5230BS-Q), but the standard -7-F version is not AEC-Q200 qualified. For non-safety-critical infotainment or body electronics, it may be used with customer qualification; for ADAS or powertrain, only the Q-grade variant is appropriate.
MMSZ5230BS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-323
MMSZ5230BS-7-F FAQ
1.How can I place an order for MMSZ5230BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5230BS-7-F 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 MMSZ5230BS-7-F reliable?
The price and inventory of MMSZ5230BS-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ5230BS-7-F is usually 5 days.
3.What payment methods are accepted for MMSZ5230BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5230BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5230BS-7-F?
MMSZ5230BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5230BS-7-F 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 MMSZ5230BS-7-F?
For technical support, including MMSZ5230BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5230BS-7-F requirements.
6.How does Aetrix verify that MMSZ5230BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5230BS-7-F 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 MMSZ5230BS-7-F meets industry standards.
7.What is the process for return or replacement of MMSZ5230BS-7-F?
All MMSZ5230BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5230BS-7-F, 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 MMSZ5230BS-7-F part is unused and in its original packaging.
Return procedure for MMSZ5230BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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