My Inquiry
My Account
Diodes Incorporated ZMM5232B-7
- Part No.:
- ZMM5232B-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
ZMM5232B-7.pdf
- Description:
- DIODE ZENER 5.6V 500MW MINI MELF
- Quantity:
- Payment:
- Shipping:
Inventory:3,025
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZMM5232B-7 from Diodes Incorporated is a 500mW surface-mount Zener diode with a nominal zener voltage of 5.6V (5.32–5.88V range), 11Ω dynamic impedance at 20mA test current, and +0.038%/°C temperature coefficient. It uses a MiniMELF glass package for stable voltage reference in low-power analog circuits, including power supply feedback loops and overvoltage protection.
For engineers reviewing the ZMM5232B-7 datasheet, ZMM5232B-7 pinout, ZMM5232B-7 application, or ZMM5232B-7 equivalent, key selection criteria include its tight 5.6V tolerance, low 11Ω zener impedance, MiniMELF thermal resistance (300°C/W), and positive temperature coefficient-critical for precision biasing and temperature-stable references.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across varying load and temperature conditions. Its 5.6V nominal rating is specified at 20mA test current (IZT), with 11Ω dynamic impedance (ZZT) ensuring minimal voltage deviation under small-signal AC variations.
The +0.038%/°C temperature coefficient enables predictable voltage drift in ambient ranges from –65°C to +175°C, and its 500mW power dissipation is valid only when terminals are held at ambient temperature per Note 1-making thermal layout essential for sustained operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.32–5.88 V min/max at IZT = 20 mA - defines stable regulation point for feedback networks |
| Zener Impedance (ZZT) | 11 Ω at IZT = 20 mA - ensures <0.22V output shift for ±2mA load change |
| Power Dissipation (Pd) | 500 mW - limits continuous DC power in compact MiniMELF footprint without forced cooling |
| Temp Coefficient (TC) | +0.038 %/°C - provides predictable +2.1mV/°C drift near room temperature |
| Reverse Current (IR) | 5.0 µA max at VR = 3.0 V - guarantees low leakage in high-impedance bias paths |
| Junction Temp Range | –65°C to +175°C - supports operation in automotive under-hood and industrial control environments |
Pinout & Package
MiniMELF (DO-213AA) hermetically sealed glass package with axial cathode band marking; no discrete pins-cathode and anode are end-cap terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Breakdown terminal | Connected to higher potential in reverse-bias configuration; determines polarity of regulated voltage drop |
| Anode (unmarked end) | Reference terminal | Typically tied to ground or common return; establishes 0V reference for regulated output |
Key Features
| Feature | Design Value |
|---|---|
| 500mW Power Rating | Enables use in space-constrained PCBs without heatsinking for ≤500mW average dissipation |
| MiniMELF Glass Package | Provides hermetic sealing and stable long-term voltage drift vs plastic SOD-123 alternatives |
| +0.038%/°C Tempco | Allows predictable compensation in temperature-critical references without external circuitry |
| 11Ω Dynamic Impedance | Minimizes AC ripple coupling into regulated node-critical for ADC reference stability |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck converter feedback path via optocoupler interface. IC Role / Device Role / Timing Role: Zener reference providing precise 5.6V threshold to error amplifier input. Use Value: Tight 5.32–5.88V tolerance ensures ±2% output regulation accuracy across production lots. | Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events on sensor lines. IC Role / Device Role / Timing Role: Shunt clamp limiting voltage to 5.6V during ESD or surge events. Use Value: 500mW rating sustains 100ms pulses per Note 2, enabling robust 2kV HBM-level protection. |
| Bias Voltage Reference | Temperature-Compensated Oscillator |
Use Scenario: Setting bias current for op-amp input stages or transistor amplifiers in instrumentation circuits. IC Role / Device Role / Timing Role: Stable DC reference source for current-setting resistors. Use Value: +0.038%/°C TC reduces drift-induced offset errors in precision gain blocks over –40°C to +85°C. | Use Scenario: Stabilizing frequency-determining node in RC oscillator circuits where voltage affects timing. IC Role / Device Role / Timing Role: Voltage reference defining charging threshold for timing capacitor. Use Value: Low 11Ω ZZT minimizes sensitivity to supply ripple, improving oscillator frequency stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V6 (Vishay) | Same 5.6V rating, but 500mW in DO-35 glass; 20Ω ZZT vs 11Ω | Higher impedance increases ripple sensitivity; less suitable for low-noise references | Prefer ZMM5232B-7 where low dynamic impedance is critical |
| MMSZ5232B (ON Semiconductor) | SOD-123 plastic package; 5.6V, 11Ω ZZT, but –65°C to +150°C rating (vs +175°C) | Limited high-temp operation; not rated for under-hood automotive use | Choose ZMM5232B-7 for extended temperature reliability |
Compared with BZX55C5V6 and MMSZ5232B, ZMM5232B-7 delivers superior thermal endurance (+175°C), lowest dynamic impedance (11Ω), and hermetic MiniMELF stability-making it optimal for high-reliability analog references where voltage precision and temperature resilience are non-negotiable.
Availability
ZMM5232B-7 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamping, and precision bias reference applications requiring stable component supply and traceable sourcing.
Supply support for ZMM5232B-7 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 centers across Asia and manufacturing in Taiwan and China.
ZMM52xxB is part of Diodes' MiniMELF Zener diode family, engineered for high-stability voltage referencing in space-constrained, thermally demanding applications such as automotive power management and industrial instrumentation.
FAQ
What is the maximum reverse current for ZMM5232B-7 at 3.0V?
The maximum reverse current (IR) is 5.0 µA at VR = 3.0 V, measured at TA = 25°C. This low leakage ensures minimal loading on high-impedance nodes, such as op-amp inputs or microcontroller ADC reference dividers, preserving signal integrity and measurement accuracy.
Can ZMM5232B-7 be used in place of a 5.1V Zener diode?
No-ZMM5232B-7 has a nominal 5.6V zener voltage (5.32–5.88V range), which exceeds the 4.85–5.36V range of ZMM5231B (5.1V). Substituting it would raise regulated voltage by ~0.5V, potentially exceeding IC absolute maximum ratings or altering loop gain in feedback circuits.
Is the MiniMELF package compatible with standard reflow profiles?
Yes-the MiniMELF (DO-213AA) package is qualified for lead-free reflow per J-STD-020, with peak temperatures up to 260°C. Its glass body withstands thermal shock better than plastic SOD packages, but board layout must ensure symmetric heating to avoid mechanical stress cracking.
How does the +0.038%/°C temperature coefficient affect circuit performance?
At 5.6V, this coefficient yields +2.13mV/°C drift near 25°C. In a 0–70°C ambient range, total drift is ~90mV-acceptable for non-precision biasing but requires compensation (e.g., complementary TC components) in sub-0.1% reference designs.
ZMM5232B-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Mini MELF
ZMM5232B-7 FAQ
1.How can I place an order for ZMM5232B-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZMM5232B-7 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 ZMM5232B-7 reliable?
The price and inventory of ZMM5232B-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZMM5232B-7 is usually 5 days.
3.What payment methods are accepted for ZMM5232B-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZMM5232B-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZMM5232B-7?
ZMM5232B-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZMM5232B-7 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 ZMM5232B-7?
For technical support, including ZMM5232B-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZMM5232B-7 requirements.
6.How does Aetrix verify that ZMM5232B-7 is sourced from the original manufacturer or authorized distributors?
All ZMM5232B-7 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 ZMM5232B-7 meets industry standards.
7.What is the process for return or replacement of ZMM5232B-7?
All ZMM5232B-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZMM5232B-7, 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 ZMM5232B-7 part is unused and in its original packaging.
Return procedure for ZMM5232B-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZMM5232B-7 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…
