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Diodes Incorporated DDZ36S-7
- Part No.:
- DDZ36S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DDZ36S-7.pdf
- Description:
- DIODE ZENER 36V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
DDZ36S-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 36.2 V (min 35.36 V, max 37.19 V), 5 mA test current, 85 Ω maximum zener impedance at 2 mA, 0.05 µA maximum reverse leakage at 30 V, and 200 mW power dissipation in SOD323 package. It delivers stable voltage reference in low-power analog monitoring circuits.
For engineers reviewing the DDZ36S-7 datasheet, DDZ36S-7 pinout, DDZ36S-7 application, or DDZ36S-7 equivalent, key selection criteria include zener voltage tolerance (±2.6%), temperature coefficient (~+0.08%/°C), low leakage at rated VR, sharp breakdown knee, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse bias above its specified zener voltage. Its sharp breakdown and tight VZ tolerance (±2.6% at 36.2 V) enable high-accuracy regulation in feedback loops and sensing front-ends.
Designed for operation at IZT = 5 mA and characterized up to 100 mA, it exhibits low dynamic impedance (85 Ω @ 2 mA) and minimal thermal drift - typical TCZ ≈ +0.08%/°C near 36 V - supporting stable performance across -65°C to +150°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.36 V min to 37.19 V max at IZT = 5 mA - defines precise clamping/reference level in voltage-sensing paths |
| Zener Impedance (ZZT) | 85 Ω max at IZ = 2 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 0.05 µA max at VR = 30 V - guarantees negligible error current in high-impedance reference nodes |
| Power Dissipation (PD) | 200 mW at TA = 25°C - sets maximum continuous power handling on standard FR-4 layout |
| Thermal Resistance (RθJA) | 625 °C/W - determines junction temperature rise per mW in standard SMT mounting |
| Operating Temperature | -65°C to +150°C - supports industrial and automotive under-hood applications |
Pinout & Package
Package: SOD323 - ultra-compact surface-mount plastic case (1.30 mm × 1.70 mm × 0.95 mm), cathode-banded polarity, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit common; establishes reference potential when cathode is biased positive |
| Cathode | Zener breakdown terminal / Output reference node | Provides stable voltage relative to anode; marked by band; connects to regulated rail or feedback point |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown characteristics | Enables clean, predictable turn-on in overvoltage protection and precision clamp circuits |
| Tight VZ tolerance (±2.6%) | Reduces calibration burden in factory-trimmed instrumentation and sensor signal conditioning |
| Low leakage (0.05 µA @ 30 V) | Maintains accuracy in high-impedance voltage dividers and battery-monitoring inputs |
| SOD323 package with lead-free finish | Supports fine-pitch automated placement and reflow soldering per IPC-J-STD-020 Level 1 |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Monitoring |
|---|---|
Use Scenario: Stabilizing reference voltage for 16-bit ADC input stage in temperature transmitter modules. IC Role / Device Role / Timing Role: Precision shunt reference providing 36.2 V reference for ratiometric scaling of thermistor bridge output. Use Value: ±2.6% VZ tolerance and <0.1 µA leakage ensure sub-LSB error contribution across -40°C to +85°C operating range. |
Use Scenario: Overvoltage clamp on CC line during USB-C PD negotiation phase. IC Role / Device Role / Timing Role: Fast-acting zener clamp protecting PD controller GPIO from transient excursions beyond 36 V. Use Value: Sharp breakdown and 85 Ω dynamic impedance limit voltage overshoot to <37.2 V during 100 ns pulses. |
| Programmable Logic Controller Input Protection | Automotive Body Control Module Reference |
Use Scenario: Protecting 24 V digital input channel against load-dump transients. IC Role / Device Role / Timing Role: Shunt limiter absorbing energy during ISO 7637-2 Pulse 5a events. Use Value: 200 mW rating and 625 °C/W RθJA allow safe clamping of 100 ms surges without thermal runaway. |
Use Scenario: Providing stable bias for LIN bus transceiver voltage monitor comparator. IC Role / Device Role / Timing Role: Temperature-stable reference source for threshold detection at 36.2 V. Use Value: +0.08%/°C TCZ ensures <±0.3 V drift over -40°C to +125°C engine bay environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36-7-F | 36 V nominal, ±5% tolerance, 90 Ω Zzt @ 5 mA, SOT-23 package | Larger footprint, higher leakage (0.1 µA @ 28.8 V), looser tolerance | Acceptable where cost sensitivity outweighs precision and board space constraints |
| MMSZ4702T1G | 36 V nominal, ±5% tolerance, 100 Ω Zzt @ 1 mA, SOD-123 package | Higher thermal resistance (833 °C/W), lower power rating (500 mW derated), less stable TC | Preferred only when legacy SOD-123 footprint compatibility is mandatory |
Compared with BZX84-C36-7-F and MMSZ4702T1G, DDZ36S-7 offers tighter voltage tolerance, lower dynamic impedance, and superior thermal performance in the smaller SOD323 package - critical for space-constrained, high-accuracy analog designs.
Availability
DDZ36S-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery monitoring, and automotive body control module reference applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for DDZ36S-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 and manufacturing operations across Asia and the Americas.
DDZ36S-7 belongs to the DDZxxS series of precision Zener diodes engineered for high-accuracy voltage reference and overvoltage protection in compact, automated SMT applications.
FAQ
What is the recommended PCB pad layout for DDZ36S-7?
Diodes Incorporated specifies a SOD323-compatible pad layout with 0.30 mm solder mask defined pads, 0.59 mm X-dimension spacing, and 2.70 mm overall land pattern length. Recommended copper area matches the thermal pad outline in Package Outline Drawing SOD323 Rev. 2017, accessible via diodes.com/package-outlines.html.
Does DDZ36S-7 meet automotive AEC-Q200 requirements?
No - DDZ36S-7 is not AEC-Q200 qualified. It is rated for industrial temperature range (-65°C to +150°C) and RoHS compliance, but lacks stress testing, failure analysis, and qualification documentation required for automotive-grade components.
Can DDZ36S-7 be used in series for higher voltage references?
Yes - multiple DDZ36S-7 devices may be cascaded in series to achieve higher reference voltages, but total tolerance accumulates (e.g., two units yield ±3.7% combined), and thermal coupling must be managed to avoid mismatched TCZ drift.
What is the maximum surge current DDZ36S-7 can withstand?
Per DS30414 Rev. 10-2, DDZ36S-7 has no specified non-repetitive peak forward surge current rating. Its safe operating area is defined by the 200 mW DC power limit and thermal resistance; transient energy must stay below 20 mJ to avoid junction overheating during short pulses.
DDZ36S-7 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):
- 36 V
- Tolerance:
- ±3%
- Power - Max:
- 200 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DDZ36S-7 FAQ
1.How can I place an order for DDZ36S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ36S-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 DDZ36S-7 reliable?
The price and inventory of DDZ36S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ36S-7 is usually 5 days.
3.What payment methods are accepted for DDZ36S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ36S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ36S-7?
DDZ36S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ36S-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 DDZ36S-7?
For technical support, including DDZ36S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ36S-7 requirements.
6.How does Aetrix verify that DDZ36S-7 is sourced from the original manufacturer or authorized distributors?
All DDZ36S-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 DDZ36S-7 meets industry standards.
7.What is the process for return or replacement of DDZ36S-7?
All DDZ36S-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ36S-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 DDZ36S-7 part is unused and in its original packaging.
Return procedure for DDZ36S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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