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Diodes Incorporated DDZ9693Q-7
- Part No.:
- DDZ9693Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9693Q-7.pdf
- Description:
- DIODE ZENER 7.5V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,012
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Product details
Overview
DDZ9693Q-7 from Diodes Incorporated is a surface-mount, low-current, AEC-Q101 qualified Zener diode in SOD123 package, with nominal zener voltage 7.5 V (min 7.13 V, max 7.88 V) at 50 µA test current, 500 mW power dissipation on FR-4 PCB, and reverse leakage ≤0.1 µA at 5.7 V. It serves as precision voltage reference or overvoltage clamp in automotive sensor signal conditioning circuits.
For engineers reviewing the DDZ9693Q-7 datasheet, DDZ9693Q-7 pinout, DDZ9693Q-7 application, or DDZ9693Q-7 equivalent, this page delivers verified electrical specs, thermal derating behavior, temperature coefficient (≈+0.03 %/°C), SOD123 mechanical dimensions, and automotive-grade sourcing context - all critical for low-power biasing and ESD-protected analog front-ends.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage tolerance (±5% at 25°C) and ultra-low test current (50 µA), enabling stable regulation in micro-power systems where quiescent current must remain below 100 µA. Its 150 °C/W junction-to-lead thermal resistance supports reliable operation under localized heating in dense automotive PCB layouts.
The device exhibits positive temperature coefficient (+0.03 %/°C typical near 7.5 V), minimizing drift across –40°C to +125°C ambient range. Its 0.01 g mass and SOD123 footprint (2.65 mm × 1.55 mm × 1.05 mm) are optimized for high-speed pick-and-place and reflow compatibility per J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V nominal, 7.13–7.88 V range at IZT = 50 µA - ensures ±5% accuracy for 5 V–12 V rail monitoring |
| Power Dissipation (PD) | 500 mW on FR-4 at TL = +75°C - supports continuous clamping in 12 V automotive domains without heatsinking |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 5.7 V - preserves battery life in always-on vehicle modules (e.g., CAN wake-up receivers) |
| Thermal Resistance (RθJL) | 150 °C/W - enables >100 mA transient surge handling before junction exceeds 150°C under pulsed conditions |
| Temperature Coefficient | +0.03 %/°C near 7.5 V - yields <±20 mV drift over –40°C to +125°C, suitable for engine bay sensor references |
| Package | SOD123 - 2.65 mm × 1.55 mm footprint with cathode band marking; compatible with IPC-7351B density Class G |
| Automotive Qualification | AEC-Q101 qualified, PPAP capable, manufactured in IATF 16949 facilities - meets Tier-1 supply chain traceability and change control requirements |
Pinout & Package
Package: SOD123 - surface-mount plastic case (UL 94V-0), matte tin annealed terminals over Alloy 42 leadframe, cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of voltage divider; defines ground-referenced breakdown threshold |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input rail or signal line being clamped; sinks current when VIN > VZ |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in nanoamp-bias circuits like thermistor bridges or MEMS sensor interfaces |
| Automotive-grade reliability | AEC-Q101 qualification with PPAP documentation - satisfies OEM requirements for under-hood electronics |
| Green material compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); RoHS 3 compliant - meets EU ELV and China RoHS mandates |
| Thermal stability | 340 °C/W RθJA on FR-4 - allows direct integration into compact ECUs without thermal relief pads |
| Automated assembly support | SOD123 geometry and matte tin finish - ensures >99.9% placement yield with standard 0402-class feeders and reflow profiles |
Applications
| Automotive Cabin Temperature Sensor | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Voltage reference for NTC thermistor bridge in HVAC control module operating at 12 V nominal with ±15% transients. IC Role / Device Role / Timing Role: Zener reference diode providing stable 7.5 V bias to op-amp instrumentation amplifier. Use Value: Enables ±0.5°C measurement accuracy over –40°C to +85°C ambient due to low TC and tight VZ tolerance. |
Use Scenario: Overvoltage clamp on 4–20 mA current loop input stage exposed to 36 V surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting input to 7.88 V peak during surge events. Use Value: Prevents op-amp saturation and ADC damage while drawing <0.1 µA in normal operation - no signal path loading. |
| Portable Medical Pulse Oximeter | EV Battery Management System (BMS) Cell Monitor |
|
Use Scenario: Low-power LED driver bias reference in coin-cell-powered wearable device with 3.0 V supply. IC Role / Device Role / Timing Role: Precision shunt reference generating 7.5 V via resistive divider for DAC reference scaling. Use Value: Draws only 50 µA at regulation point - extends CR2032 battery life to >12 months in standby mode. |
Use Scenario: Voltage supervisor reference for cell voltage monitoring IC in 48 V traction battery pack with 100 kHz sampling. IC Role / Device Role / Timing Role: Stable 7.5 V reference source for comparator threshold in isolated cell voltage detection circuit. Use Value: Maintains <±10 mV error over full temperature range and lifetime - critical for SOC estimation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5-7-F | Same 7.5 V nominal, but ±6% tolerance (vs. ±5%), higher IR (1 µA @ 5.7 V), not AEC-Q101 qualified | Acceptable for industrial non-automotive designs; lacks PPAP documentation and IATF 16949 traceability | Select for cost-sensitive consumer applications where automotive compliance is unnecessary |
| MMSZ5235B-TP | 7.5 V nominal, ±5% tolerance, but rated at 350 mW (vs. 500 mW), RθJA = 390 °C/W, no AEC-Q101 certification | Lower power handling limits sustained clamping in 12 V automotive transients; requires larger copper area for thermal management | Choose only if footprint compatibility with existing SOD-123 layout is required and automotive qualification is waived |
Compared with BZX84-C7V5-7-F and MMSZ5235B-TP, DDZ9693Q-7 delivers superior thermal robustness (500 mW rating), tighter leakage (0.1 µA), and full automotive qualification - making it the sole choice for safety-critical, high-reliability 12 V system monitoring.
Availability
DDZ9693Q-7 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial analog input protection, portable medical devices, and EV battery monitor circuits requiring stable component supply with full AEC-Q101 traceability.
Supply support for DDZ9693Q-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 IATF 16949-certified facilities.
This device belongs to the DDZ9678–DDZ9717 automotive Zener series, engineered specifically for low-current, high-stability voltage reference and transient suppression in harsh-environment automotive electronics.
FAQ
What is the maximum steady-state power dissipation for DDZ9693Q-7 on a standard FR-4 PCB?
DDZ9693Q-7 delivers 500 mW power dissipation when mounted on FR-4 with minimum recommended pad layout at lead temperature (TL) = +75°C. Derating begins linearly above +75°C, reaching zero at +150°C ambient, per Figure 1 in DS30410 Rev. 17-2.
Does DDZ9693Q-7 have a defined zener impedance, and what is its typical value at 7.5 V?
Yes - typical zener impedance (ZZT) is 350 Ω at IZT = 50 µA and TJ = 25°C, as shown in Figure 12 of DS30410. This value increases at lower currents and decreases slightly at higher currents, remaining below 500 Ω across the 10 µA–1 mA operating range.
Can DDZ9693Q-7 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficient mismatch and unequal current sharing when paralleled. The datasheet does not recommend parallel operation; instead, use a single higher-rated device or external series resistor to limit current during transient events.
Is the SOD123 package of DDZ9693Q-7 compatible with IPC-7351B land pattern Class G?
Yes - Diodes Incorporated's official SOD123 outline (documented in DS30410 p.7) specifies pad dimensions matching IPC-7351B Class G: 1.2 mm pad length, 0.7 mm pad width, 1.8 mm center-to-center spacing, and 0.3 mm solder mask expansion - validated for reflow and automated optical inspection.
DDZ9693Q-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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.7 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
DDZ9693Q-7 FAQ
1.How can I place an order for DDZ9693Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9693Q-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 DDZ9693Q-7 reliable?
The price and inventory of DDZ9693Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9693Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ9693Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9693Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9693Q-7?
DDZ9693Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9693Q-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 DDZ9693Q-7?
For technical support, including DDZ9693Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9693Q-7 requirements.
6.How does Aetrix verify that DDZ9693Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9693Q-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 DDZ9693Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ9693Q-7?
All DDZ9693Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9693Q-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 DDZ9693Q-7 part is unused and in its original packaging.
Return procedure for DDZ9693Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9693Q-7 Tags
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