My Inquiry
My Account
Diodes Incorporated MMSZ5245BS-7-F
- Part No.:
- MMSZ5245BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MMSZ5245BS-7-F.pdf
- Description:
- DIODE ZENER 15V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:161,069
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMSZ5245BS-7-F from Diodes Incorporated is a surface-mount 15 V Zener diode in SOD-323 package, rated for 200 mW power dissipation, 16 Ω zener impedance at 8.5 mA test current, and maximum 0.1 µA reverse leakage at 11 V, used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the MMSZ5245BS-7-F datasheet, MMSZ5245BS-7-F pinout, MMSZ5245BS-7-F application, or MMSZ5245BS-7-F equivalent, key selection criteria include nominal zener voltage tolerance (±5%), thermal resistance (625 °C/W), cathode-band polarity marking, JEDEC-compliant SOD-323 footprint, and RoHS/halogen-free compliance for consumer and industrial PCB assemblies.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent voltage regulation with low dynamic impedance (16 Ω at IZT = 8.5 mA) and tight voltage tolerance (14.25–15.75 V).
The device is optimized for automated SMT assembly on FR-4 boards using recommended pad layout AP02001, with moisture sensitivity level 1 and lead-free matte tin plating. It exhibits negligible capacitance (<2 pF typical at 1 MHz) and supports operation from –65 °C to +150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 15 V - precise DC reference voltage for feedback loops and voltage clamping |
| Zener Voltage Range | 14.25–15.75 V - ±5% tolerance ensures predictable regulation across production lots |
| Test Current (IZT) | 8.5 mA - operating point where specified zener voltage and impedance are guaranteed |
| Zener Impedance (ZZT) | 16 Ω - low dynamic resistance minimizes output voltage variation under load transients |
| Power Dissipation | 200 mW - limits continuous current to ~13.3 mA at 15 V, defining safe operating area |
| Reverse Leakage (IR) | 0.1 µA @ 11 V - ultra-low leakage preserves accuracy in high-impedance bias networks |
| Thermal Resistance (RθJA) | 625 °C/W - dictates junction temperature rise under full power on standard FR-4 layout |
Pinout & Package
Package: SOD-323 - compact 2-pin surface-mount plastic case (2.3–2.7 mm length, 1.2–1.4 mm width, 0.25–0.35 mm thickness), cathode identified by band marking, compatible with IPC-7351B footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in regulation circuit; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to regulated node; reverse-biased to maintain fixed 15 V drop relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable breakdown characteristics and long-term stability under thermal cycling |
| SOD-323 package | Enables high-density PCB layouts and compatibility with standard 0805-class pick-and-place equipment |
| Lead-free & RoHS compliant | Meets EU Directive 2011/65/EU without exemptions; suitable for global commercial shipments |
| Halogen- and antimony-free | Contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies "Green" environmental requirements |
| Moisture sensitivity Level 1 | Eliminates need for dry-packaging or baking prior to reflow, reducing manufacturing overhead |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 15 V reference for linear regulator feedback or ADC reference divider. IC Role / Device Role / Timing Role: Precision voltage reference element in analog signal conditioning chain. Use Value: ±5% voltage tolerance and 16 Ω impedance ensure <±10 mV drift under 1 mA load variation. |
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events up to 15 V. IC Role / Device Role / Timing Role: Shunt clamping device limiting input voltage to safe logic threshold. Use Value: 0.1 µA leakage at 11 V prevents loading of high-impedance sensor inputs during normal operation. |
| Current Source Bias | Temperature-Stable Oscillator Trim |
Use Scenario: Establishing constant current for LED bias or op-amp bias network via series resistor. IC Role / Device Role / Timing Role: Stable voltage source enabling predictable current through external resistor. Use Value: 200 mW rating allows ≥13 mA current at 15 V, supporting medium-current analog stages. |
Use Scenario: Fine-tuning oscillator frequency in crystal-based clock generators via voltage-controlled load capacitance. IC Role / Device Role / Timing Role: Low-capacitance (≤2 pF) voltage reference stabilizing varactor bias point. Use Value: Minimal parasitic capacitance avoids pulling crystal resonance away from target frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C15 | Same 15 V nominal, but SOD-523 package (smaller footprint), 300 mW rating, higher leakage (0.5 µA @ 11 V) | Better power handling but requires tighter layout control; less suitable for legacy SOD-323 land patterns | Select when board space is constrained and higher power margin is needed |
| MMBZ5245BS | Identical electrical specs and SOD-323 package, but in SOT-23 (3-pin) configuration with unused emitter pin | Requires different footprint and may introduce unintended parasitics due to extra terminal | Avoid unless existing design uses SOT-23; not a drop-in replacement despite matching marking code |
Compared with BZX584-C15 and MMBZ5245BS, MMSZ5245BS-7-F offers optimal balance of proven SOD-323 compatibility, ultra-low leakage, and JEDEC-standardized thermal performance for cost-sensitive, high-volume analog designs.
Availability
MMSZ5245BS-7-F is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and current-source bias applications requiring stable component supply, consistent parametric performance, and full RoHS/Green compliance.
Supply support for MMSZ5245BS-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.
This device belongs to the MMSZ52xxBS series of general-purpose Zener diodes engineered for reliable voltage regulation in space-constrained, high-reliability consumer and industrial PCBs.
FAQ
What is the maximum continuous reverse voltage this Zener can withstand without breakdown?
The MMSZ5245BS-7-F has a nominal zener voltage of 15 V with a guaranteed range of 14.25–15.75 V. Below 14.25 V, it remains in high-impedance reverse-blocking state with ≤0.1 µA leakage at 11 V. Sustained reverse voltage above 15.75 V risks exceeding its 200 mW power limit and thermal runaway.
Does this part require derating at elevated ambient temperatures?
Yes - its power dissipation must be linearly derated above +25 °C ambient per Fig. 1 in DS31038: at +85 °C, maximum allowable power drops to 125 mW (62.5% of 200 mW), corresponding to ~8.3 mA continuous current. Derating follows RθJA = 625 °C/W on standard FR-4 layout.
Is the SOD-323 package compatible with standard reflow profiles?
Yes - the device is qualified for Pb-free reflow per J-STD-020D Level 1 moisture sensitivity, with peak temperature up to 260 °C. Its matte tin finish and alloy 42 leadframe ensure robust solder joint formation using standard SnAgCu profiles without voiding or dewetting.
How does its zener impedance affect regulation accuracy under load changes?
With ZZT = 16 Ω at 8.5 mA, a 1 mA load increase causes ~16 mV output shift. This low impedance enables stable regulation in feedback networks where load current varies within ±0.5 mA, making it suitable for precision references in 12-bit ADC systems and low-noise LDOs.
MMSZ5245BS-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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 16 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 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
MMSZ5245BS-7-F FAQ
1.How can I place an order for MMSZ5245BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5245BS-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 MMSZ5245BS-7-F reliable?
The price and inventory of MMSZ5245BS-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 MMSZ5245BS-7-F is usually 5 days.
3.What payment methods are accepted for MMSZ5245BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5245BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5245BS-7-F?
MMSZ5245BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5245BS-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 MMSZ5245BS-7-F?
For technical support, including MMSZ5245BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5245BS-7-F requirements.
6.How does Aetrix verify that MMSZ5245BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5245BS-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 MMSZ5245BS-7-F meets industry standards.
7.What is the process for return or replacement of MMSZ5245BS-7-F?
All MMSZ5245BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5245BS-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 MMSZ5245BS-7-F part is unused and in its original packaging.
Return procedure for MMSZ5245BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMSZ5245BS-7-F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
