My Inquiry
My Account
Diodes Incorporated MMSZ5258BQ-13-F
- Part No.:
- MMSZ5258BQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ5258BQ-13-F.pdf
- Description:
- DIODE ZENER 36V 370MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMSZ5258BQ-13-F from Diodes Incorporated is a 36 V, ±5% tolerance, 500 mW surface-mount Zener diode in SOD-123 package, rated for 3.4 mA test current and 70 Ω dynamic impedance at 1 kHz, with 0.1 µA reverse leakage at 27 V, designed for precision voltage regulation and reference in automotive-grade power management circuits.
For engineers reviewing the MMSZ5258BQ-13-F datasheet, MMSZ5258BQ-13-F pinout, MMSZ5258BQ-13-F application, or MMSZ5258BQ-13-F equivalent, key selection criteria include Zener voltage stability over temperature (±0.08%/°C typical), AEC-Q101 qualification, SOD-123 thermal performance (RθJA = 338 °C/W), and automotive tape-and-reel packaging (10,000 pcs/reel).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations and supply fluctuations. Its 36 V nominal Zener voltage is specified at IZT = 3.4 mA with tight ±5% tolerance and low 70 Ω impedance at 1 kHz, enabling accurate regulation in feedback loops and reference rails.
Designed for automotive environments, it meets AEC-Q101 stress testing requirements and features halogen/antimony-free "Green" molding compound (UL 94V-0), matte tin-plated terminals, and moisture sensitivity level 1 - ensuring robustness in reflow-soldered automotive control modules and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 34.2–37.8 V range at IZT = 3.4 mA - ensures precise voltage clamping in 3.3 V/5 V/12 V system rails. |
| Power Dissipation | 500 mW @ TL = +75°C - supports continuous operation in thermally constrained PCB layouts with 1-inch copper pad. |
| Zener Impedance (ZZT) | 70 Ω @ f = 1 kHz - minimizes output voltage variation under dynamic load transients in regulator feedback networks. |
| Reverse Leakage (IR) | 0.1 µA @ VR = 27 V - guarantees low quiescent current draw in battery-backed or always-on monitoring circuits. |
| Temperature Coefficient | +0.08 %/°C typical - enables predictable drift compensation in temperature-critical sensor biasing and ADC reference applications. |
| Package | SOD-123 - compact 2.65 mm × 1.55 mm footprint compatible with high-density automotive PCB assembly and automated pick-and-place. |
Pinout & Package
Two-terminal device in SOD-123 plastic package with cathode band marking. Terminals are anode (unmarked end) and cathode (banded end); polarity must be observed for proper reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated rail; forms reference ground return path in shunt regulator topologies. |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to higher-potential node (e.g., supply rail or feedback divider tap); defines regulated output voltage point. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood and body control module use with extended temperature cycling and humidity testing. |
| Halogen- and antimony-free "Green" compound | Meets JESD22-A112 and RoHS 2 compliance with <900 ppm Br/Cl and <1000 ppm Sb - supports eco-design mandates. |
| Low thermal resistance | RθJA = 338 °C/W on FR-4 with 1-inch copper pad - enables reliable 500 mW dissipation without heatsinking. |
| Matte tin annealed terminals | Solderable per MIL-STD-202, Method 208 - ensures consistent wetting and joint integrity in lead-free reflow profiles. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for LIN bus transceiver biasing and microcontroller reset circuitry in door module ECUs. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 36 V clamp for internal LDO input protection and brown-out detection thresholds. Use Value: Maintains functional safety integrity under battery voltage surges (up to 40 V) while meeting ISO 7637-2 pulse 5a immunity requirements. |
Use Scenario: Precision voltage reference for 4–20 mA loop-powered pressure transmitter front-end op-amp biasing. IC Role / Device Role / Timing Role: Stable 36 V reference source for rail-to-rail input amplifiers and DAC output scaling in analog signal chains. Use Value: Enables ±0.1% full-scale accuracy over –40°C to +105°C due to low TC and tight VZ tolerance. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Secondary-side voltage sensing in isolated flyback adapters for USB-C PD chargers. IC Role / Device Role / Timing Role: Zener-based optocoupler feedback reference setting primary-side controller target output voltage. Use Value: Reduces BOM count vs. TL431-based solutions while maintaining ±2% output regulation across line/load/temperature. |
Use Scenario: High-stability bias voltage for photodiode transimpedance amplifier in portable blood oximetry sensors. IC Role / Device Role / Timing Role: Low-noise, low-drift reference node for analog front-end gain-setting resistors and offset trimming. Use Value: Limits baseline drift to <50 µV/°C, directly improving SpO2 measurement repeatability in clinical-grade devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36LT1G | Same 36 V nominal, but ±6% tolerance and 90 Ω ZZT; SOT-23 package (larger footprint, higher RθJA). | Not AEC-Q101 qualified; suitable for commercial-grade consumer power supplies only. | Select when cost sensitivity outweighs automotive qualification and thermal performance needs. |
| MMSZ5258B-13-F | Identical electrical specs and SOD-123 package, but commercial-grade (non-AEC-Q101) and halogen-containing molding compound. | Lacks automotive reliability validation; acceptable for industrial control panels with ambient TA ≤ +85°C. | Choose for non-automotive designs where RoHS compliance suffices and AEC-Q101 is not mandated. |
Compared with BZX84-C36LT1G and MMSZ5258B-13-F, MMSZ5258BQ-13-F delivers tighter voltage tolerance, lower impedance, and verified automotive reliability - making it the sole choice for ASIL-B–compatible systems requiring long-term parametric stability under thermal cycling.
Availability
MMSZ5258BQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply with guaranteed AEC-Q101 compliance and green material certification.
Supply support for MMSZ5258BQ-13-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, specializing in high-reliability components for automotive, industrial, and computing markets with over 50 years of power management expertise.
MMSZ5258BQ-13-F belongs to the MMSZ52xxB automotive Zener series, engineered specifically for voltage regulation in harsh-environment control units where AEC-Q101 qualification, low-TC stability, and green material compliance are mandatory.
FAQ
What is the maximum power dissipation of MMSZ5258BQ-13-F at +25°C ambient?
The device dissipates up to 370 mW at TA = +25°C when mounted on FR-4 PCB with 1-inch copper pad layout, per datasheet Note 5. Derating begins linearly above +25°C at 3.38 mW/°C, reaching 500 mW at TL = +75°C (lead temperature).
Is MMSZ5258BQ-13-F compatible with lead-free reflow soldering processes?
Yes - its matte tin-finished alloy 42 leadframe is fully compliant with IPC-J-STD-020 moisture sensitivity Level 1 and certified solderable per MIL-STD-202, Method 208, supporting peak reflow temperatures up to 260°C in standard Pb-free profiles.
How does the temperature coefficient affect regulation accuracy over –40°C to +150°C?
With a typical TC of +0.08 %/°C, the Zener voltage shifts approximately ±8.6 mV/°C around 36 V. Over the full operating range, total drift is bounded by ±1.2 V - verified in Figure 6 of DS18010 Rev. 28 for MMSZ5258B-grade devices.
Can MMSZ5258BQ-13-F replace MMSZ5257B in existing designs?
No - MMSZ5257B is rated for 33 V (31.35–34.65 V), while MMSZ5258BQ-13-F is 36 V (34.2–37.8 V). Substitution would raise reference voltage by ~3 V, potentially exceeding downstream IC absolute maximum ratings or violating feedback loop setpoints.
MMSZ5258BQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 370 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 27 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ5258BQ-13-F FAQ
1.How can I place an order for MMSZ5258BQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5258BQ-13-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 MMSZ5258BQ-13-F reliable?
The price and inventory of MMSZ5258BQ-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ5258BQ-13-F is usually 5 days.
3.What payment methods are accepted for MMSZ5258BQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5258BQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5258BQ-13-F?
MMSZ5258BQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5258BQ-13-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 MMSZ5258BQ-13-F?
For technical support, including MMSZ5258BQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5258BQ-13-F requirements.
6.How does Aetrix verify that MMSZ5258BQ-13-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5258BQ-13-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 MMSZ5258BQ-13-F meets industry standards.
7.What is the process for return or replacement of MMSZ5258BQ-13-F?
All MMSZ5258BQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5258BQ-13-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 MMSZ5258BQ-13-F part is unused and in its original packaging.
Return procedure for MMSZ5258BQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMSZ5258BQ-13-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
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…
