My Inquiry
My Account
Diodes Incorporated DDZ36Q-7
- Part No.:
- DDZ36Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ36Q-7.pdf
- Description:
- DIODE ZENER 36.28V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ36Q-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 36 V, ±5.4% tolerance (35.36–37.19 V), 85 Ω maximum zener impedance at 5 mA test current, and 300 mW power dissipation rating at 25°C ambient - used for voltage regulation and reference in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the DDZ36Q-7 datasheet, DDZ36Q-7 pinout, DDZ36Q-7 application, or DDZ36Q-7 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (425 °C/W on minimal pad layout), cathode-band polarity marking, SOD123 package compatibility with automated placement, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its zener voltage exhibits a positive temperature coefficient of +0.07 %/°C near 36 V, enabling predictable drift behavior in temperature-sensitive references.
The SOD123 package features a single cathode-band-marked terminal pair, no internal series resistance, and is rated for operation from –65°C to +150°C junction temperature. It delivers stable regulation at IZT = 5 mA with <0.05 µA reverse leakage at 30 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.36–37.19 V at IZT = 5 mA - defines precise regulation point for feedback or clamping |
| Zener Impedance (ZZT) | 85 Ω max at 1 kHz - limits output voltage variation under dynamic load changes |
| Power Dissipation (PD) | 294 mW at TA = 25°C on minimal pad layout - constrains usable current in compact PCB designs |
| Reverse Leakage (IR) | 0.05 µA max at VR = 30 V - ensures negligible quiescent current in high-impedance bias networks |
| Thermal Resistance (RθJA) | 425 °C/W on minimal pad layout - dictates derating curve slope above 75°C ambient |
| Temperature Coefficient | +0.07 %/°C - enables predictable voltage drift compensation in multi-device references |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking; dimensions: 2.65 mm × 1.55 mm × 1.05 mm (E × D × A); moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source and load; maintains stable voltage relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage reference | ±5.4% VZ tolerance enables tight regulation without external trimming |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and sensor interfaces |
| Lead-free & halogen-free | Meets RoHS 3 and IATF16949 requirements for green manufacturing and end-of-life compliance |
| Automated assembly compatible | SOD123 footprint supports high-speed pick-and-place and reflow soldering per JEDEC standards |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Reference |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 36 V threshold to TL431-like comparator circuitry. Use Value: Enables ±1% output regulation accuracy despite transformer winding ratio tolerances and load transients. |
Use Scenario: Providing stable bias voltage for MEMS pressure sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Precision reference node for ADC input scaling and offset calibration. Use Value: Maintains sensor linearity over –40°C to +125°C ambient due to predictable +0.07%/°C TC. |
| Overvoltage Clamp Protection | Programmable Threshold Detector |
|
Use Scenario: Protecting 3.3 V logic inputs from accidental 24 V field wiring faults in PLC I/O modules. IC Role / Device Role / Timing Role: Clamping element placed between signal line and ground with series current-limiting resistor. Use Value: Limits transient voltage to ≤37.2 V while dissipating <200 mW during 100 ms surges. |
Use Scenario: Setting trip point for window comparators monitoring battery pack cell voltages in EV BMS. IC Role / Device Role / Timing Role: Upper threshold reference in dual-comparator overvoltage detection stage. Use Value: Provides repeatable 36.2 V trigger point with <0.5% unit-to-unit variation across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36LT1G | Same 36 V nominal rating but ±5% tolerance (34.2–37.8 V); 90 Ω ZZT; SOT-23 package | Larger footprint and higher thermal resistance (625 °C/W) limit power handling in dense layouts | Prefer when existing SOT-23 land pattern must be reused and AEC-Q101 is not required |
| MMSZ5245B-TP | 36 V nominal, ±5% tolerance; 100 Ω ZZT; SOD-123 package; no AEC-Q101 qualification | Lower cost but unqualified for automotive use; tighter RθJA spec (350 °C/W) only with enhanced pad layout | Choose for industrial consumer products where automotive qualification is unnecessary and cost sensitivity is high |
Compared with BZX84-C36LT1G and MMSZ5245B-TP, DDZ36Q-7 offers superior automotive qualification, tighter voltage tolerance, and guaranteed thermal performance on minimal PCB pads - making it optimal for space-constrained, mission-critical vehicle electronics.
Availability
DDZ36Q-7 is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply feedback, and precision sensor reference applications requiring stable component supply and long-term lifecycle support.
Supply support for DDZ36Q-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, manufacturing, and sales operations across Asia, Europe, and North America.
The DDZ series targets high-accuracy, surface-mount Zener references for automotive and industrial systems where stability, qualification, and automated assembly compatibility are mandatory.
FAQ
What is the maximum continuous zener current for DDZ36Q-7 at 75°C ambient?
At TA = 75°C, the maximum continuous zener current is 378 mA, derived from the 500 mW power rating (PD = 500 mW) divided by VZ = 36 V. This assumes adequate PCB copper area per Note 6 (RθJL = 132 °C/W) and excludes derating for pulse operation.
Does DDZ36Q-7 have a specified capacitance value?
No capacitance specification is provided in the DS30407 datasheet for DDZ36Q-7. Figure 10 shows typical total capacitance for other devices in the series, but values for 36 V and above are not plotted; therefore, capacitance must be measured or estimated from layout parasitics in final design.
Can DDZ36Q-7 replace DDZ36 in non-automotive designs?
Yes - DDZ36Q-7 shares identical electrical characteristics and SOD123 packaging with DDZ36-7, differing only in AEC-Q101 qualification, PPAP capability, and IATF16949 manufacturing. The "Q" suffix denotes automotive grade; functionality is fully interchangeable in commercial applications.
What is the recommended solder profile for DDZ36Q-7?
DDZ36Q-7 complies with IPC/JEDEC J-STD-020D for moisture sensitivity level 1 and supports standard lead-free reflow profiles: peak temperature 260°C, time above 217°C ≤ 60 seconds, ramp rate ≤ 3°C/s. Matte tin annealed terminations ensure reliable wetting without pre-tinning.
DDZ36Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36.28 V
- Tolerance:
- ±3%
- Power - Max:
- 470 mW
- Impedance (Max) (Zzt):
- 85 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 30 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ36Q-7 FAQ
1.How can I place an order for DDZ36Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ36Q-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 DDZ36Q-7 reliable?
The price and inventory of DDZ36Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ36Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ36Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ36Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ36Q-7?
DDZ36Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ36Q-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 DDZ36Q-7?
For technical support, including DDZ36Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ36Q-7 requirements.
6.How does Aetrix verify that DDZ36Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ36Q-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 DDZ36Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ36Q-7?
All DDZ36Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ36Q-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 DDZ36Q-7 part is unused and in its original packaging.
Return procedure for DDZ36Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ36Q-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…
