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Nexperia USA Inc. BZX384-C9V1,115
- Part No.:
- BZX384-C9V1,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C9V1,115.pdf
- Description:
- DIODE ZENER 9.1V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,681
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Product details
Overview
BZX384-C9V1,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 9.1 V nominal breakdown at 5 mA, with 300 mW total power dissipation and 150 °C maximum junction temperature. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the BZX384-C9V1,115 datasheet, BZX384-C9V1,115 pinout, BZX384-C9V1,115 application, or BZX384-C9V1,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (100 Ω max), reverse current (0.5 μA max at 7 V), thermal resistance (415 K/W), and non-repetitive peak reverse power (40 W).
Technical Context
This device operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current when applied voltage exceeds its 9.1 V Zener threshold. Its 100 Ω maximum differential resistance ensures predictable dynamic response under varying load conditions.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it relies on thermal conduction through the cathode and anode leads to limit junction temperature rise to ≤150 °C at 25 °C ambient, with Rth(j-a) = 415 K/W and Rth(j-sp) = 110 K/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal at IZ = 5 mA; actual range 8.5 V to 9.6 V (±5 % tolerance) |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA; defines small-signal impedance near regulation point |
| Reverse Current (IR) | ≤0.5 μA at VR = 7 V; ensures minimal leakage in standby regulation |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C on standard FR4 PCB; sets continuous DC power limit |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 μs square wave; supports transient overvoltage clamping |
| Junction Temperature (Tj) | −65 °C to +150 °C; defines operational and storage thermal envelope |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA; relevant for polarity-check or series-forward applications |
Pinout & Package
Package: SOD323 (SC-76), plastic surface-mounted, 2-lead, 1.35 mm × 0.85 mm footprint, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; carries reverse current during Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD package | SOD323 footprint enables high-density PCB layouts with 0.85 mm height clearance |
| Controlled Zener tolerance | ±5 % (C-series) provides cost-optimized voltage accuracy for non-critical references |
| Thermal robustness | 150 °C max junction temperature supports operation in industrial ambient environments |
| Pulse survivability | 40 W non-repetitive peak power rating allows brief surge suppression without failure |
| Low leakage performance | 0.5 μA max reverse current at 7 V ensures minimal quiescent power draw in always-on circuits |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing output voltage of linear regulators or switching converter feedback networks. IC Role / Device Role / Timing Role: Shunt reference providing precise 9.1 V threshold for error amplifier comparison. Use Value: Maintains ±1 % output regulation despite input ripple and load variation due to low rdif and stable VZ. |
Use Scenario: Protecting downstream ICs from transient voltage spikes on 5 V–12 V rails. IC Role / Device Role / Timing Role: Fast-acting crowbar element that conducts above 9.1 V to divert surge current. Use Value: Limits clamping voltage to ≤9.6 V while absorbing up to 40 W for 100 μs, preventing latch-up or damage. |
| Reference Voltage Source | Signal Level Translation |
Use Scenario: Generating stable bias points for op-amp comparators or ADC reference dividers. IC Role / Device Role / Timing Role: Passive voltage node defining 9.1 V reference against which analog signals are measured. Use Value: Delivers <0.5 μA leakage and <100 Ω dynamic impedance, minimizing reference drift and loading error. |
Use Scenario: Shifting logic-level signals between incompatible voltage domains (e.g., 3.3 V MCU to 9 V sensor interface). IC Role / Device Role / Timing Role: Clamping diode establishing upper rail at 9.1 V while blocking reverse conduction. Use Value: Enables bidirectional level shifting with forward VF ≤0.9 V and reverse Zener action at 9.1 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B9V1,115 | ±2 % tolerance (8.92 V–9.28 V), 60 Ω max rdif, 0.2 μA max IR at 7 V | Narrower voltage spread improves precision in feedback loops but increases cost | Select when tighter regulation stability is required and budget permits higher tolerance grade |
| MMBZ5240BS-7-F | ±5 % tolerance (9.1 V), SOT-323 package, 200 mW Ptot, 120 Ω rdif, 1 μA IR at 7 V | Lower power rating and higher leakage reduce suitability for continuous regulation | Acceptable only for low-duty-cycle clamping where average power remains <200 mW |
Compared with BZX384-C9V1,115, the BZX384-B9V1,115 offers superior voltage accuracy and lower dynamic impedance for critical references, while MMBZ5240BS-7-F trades thermal margin and leakage performance for identical tolerance in a different footprint-making it viable only in space-constrained, low-power clamping roles.
Availability
BZX384-C9V1,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and reference voltage generation requiring stable component supply across industrial control, consumer electronics, and IoT edge devices.
Supply support for BZX384-C9V1,115 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions optimized for efficiency and miniaturization in high-volume applications.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered for cost-sensitive, space-constrained voltage reference and protection functions in consumer, industrial, and computing systems.
FAQ
What is the maximum continuous reverse current this diode can handle?
The BZX384-C9V1,115 does not specify a maximum continuous reverse current; instead, its safe operating area is defined by power dissipation limits. At 25 °C ambient, it sustains ≤33 mA continuous reverse current (9.1 V × 33 mA ≈ 300 mW). Derating is required above 25 °C per the 415 K/W thermal resistance.
Can this Zener diode be used in parallel for higher power handling?
No-parallel connection is not recommended due to mismatched Zener voltages and thermal runaway risk. Even small VZ variations cause current hogging in one device, exceeding its 300 mW limit. For higher power, use a single higher-rated Zener or active regulation.
How does the ±5 % tolerance affect circuit accuracy in a 5 V regulator feedback loop?
In a typical resistive divider feedback network, ±5 % VZ contributes directly to output voltage error. For a 9.1 V Zener setting a 5 V output, the resulting output uncertainty is ±0.28 V (≈±5.6 %), assuming no other error sources-making it suitable for non-critical applications only.
Is the SOD323 package compatible with standard reflow soldering profiles?
Yes-the SOD323 package is qualified for lead-free reflow per JEDEC J-STD-020. Nexperia specifies a maximum peak temperature of 260 °C for 30 seconds, with ramp rates ≤3 °C/s. The recommended footprint matches Figure 12 in the datasheet, using 0.5 mm pad width and 0.6 mm spacing.
BZX384-C9V1,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-C9V1,115 FAQ
1.How can I place an order for BZX384-C9V1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C9V1,115 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 BZX384-C9V1,115 reliable?
The price and inventory of BZX384-C9V1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C9V1,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C9V1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C9V1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C9V1,115?
BZX384-C9V1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C9V1,115 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 BZX384-C9V1,115?
For technical support, including BZX384-C9V1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C9V1,115 requirements.
6.How does Aetrix verify that BZX384-C9V1,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-C9V1,115 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 BZX384-C9V1,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C9V1,115?
All BZX384-C9V1,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C9V1,115, 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 BZX384-C9V1,115 part is unused and in its original packaging.
Return procedure for BZX384-C9V1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C9V1,115 Tags
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MMBZ5240B-7-F
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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