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Nexperia USA Inc. BZX84-C36,235
- Part No.:
- BZX84-C36,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C36,235.pdf
- Description:
- DIODE ZENER 36V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:474
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Product details
Overview
BZX84-C36,235 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 36 V nominal breakdown voltage at 2 mA, 250 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision reference or overvoltage clamp in low-power analog supply rails, sensor biasing circuits, and microcontroller reset supervision.
For engineers reviewing the BZX84-C36,235 datasheet, BZX84-C36,235 pinout, BZX84-C36,235 application, or BZX84-C36,235 equivalent, key selection criteria include its 34.0–38.0 V working voltage range at IZ = 2 mA, 350 Ω max differential resistance, 90 μA max reverse current at VR = 28.8 V, temperature coefficient of +0.05 mV/K, and thermal resistance of 330 K/W to solder point.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable DC voltage under varying load or input conditions. Its regulation relies on controlled avalanche and Zener mechanisms, with specified performance at IZ = 2 mA and Tj = 25 °C.
The device features a three-terminal SOT23 package with anode (Pin 1), unconnected (Pin 2), and cathode (Pin 3), enabling compact PCB layout and standard reflow compatibility. Thermal performance is defined for FR4 PCB mounting with single-sided 70 µm copper and tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 34.0 V to 38.0 V at IZ = 2 mA - defines usable regulation window for 36 V nominal reference |
| Differential Resistance rdif | ≤350 Ω - determines output impedance and load regulation error under current variation |
| Reverse Current IR | ≤90 μA at VR = 28.8 V - sets minimum bias current requirement for reliable turn-on |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - limits continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power PZSM | 40 W for tp = 100 μs - supports transient overvoltage clamping without failure |
| Junction Temperature Tj | −55 °C to +150 °C - enables operation in industrial ambient environments |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.3 mm footprint, 1.1 mm height, and standard reflow-compatible solder pads per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential side of regulated node; reverse-bias current enters here during regulation |
| 2 | Not Connected (n.c.) | Internal die bond wire stub; electrically isolated and must remain unconnected on PCB |
| 3 | Cathode (K) | Connected to higher-potential side; voltage reference output is measured from this terminal relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % voltage tolerance | Enables cost-effective regulation where tight accuracy is not required, e.g., non-critical biasing |
| 250 mW steady-state power rating | Supports regulation in low-current signal chains (<10 mA typical) without heatsinking |
| 40 W surge capability | Clamps ESD or inductive transients up to 100 μs without degradation |
| SOT23 package compatibility | Allows automated placement and reflow assembly alongside other small-signal discretes |
| 150 °C max junction temperature | Permits use in enclosed industrial enclosures with limited airflow |
Applications
| Power Supply Reference | Sensor Biasing |
|---|---|
Use Scenario: Providing stable 36 V reference for op-amp feedback networks in isolated DC-DC converters. IC Role / Device Role / Timing Role: Voltage reference element defining output setpoint via resistive divider feedback. Use Value: Maintains ±1.2 V regulation window across temperature and line variations due to low tempco (+0.05 mV/K) and stable rdif. |
Use Scenario: Biasing a high-voltage photodiode in optical smoke detection circuitry. IC Role / Device Role / Timing Role: Reverse-biased Zener supplying constant bias voltage independent of supply ripple. Use Value: Ensures consistent photocurrent response by holding photodiode cathode at fixed 36 V, minimizing dark current drift. |
| Microcontroller Reset Clamping | Overvoltage Protection |
Use Scenario: Protecting 3.3 V MCU reset pin from 5 V rail overshoot during power-up sequencing. IC Role / Device Role / Timing Role: Shunt clamp limiting voltage excursion above safe threshold using series resistor. Use Value: Activates at 34 V to prevent damage to downstream logic while surviving 40 W transient surges. |
Use Scenario: Safeguarding analog front-end inputs against accidental 48 V field wiring faults. IC Role / Device Role / Timing Role: Primary shunt limiter diverting excess current before protection IC triggers. Use Value: Absorbs fault energy within 100 μs pulse limit, preventing latch-up or burnout of precision amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245B | 36 V nominal, ±5 %, 350 mW, SOT23, but higher rdif (700 Ω max) and higher IR (100 μA at 28.8 V) | Less precise regulation under dynamic load; higher leakage may affect ultra-low-power sensors | Select when legacy ON Semi sourcing is preferred and tighter rdif is not required |
| Vishay BZX84-C36-TP | Identical 36 V ±5 % spec, same SOT23 package, but rated for 300 mW Ptot and 50 W PZSM | Higher surge margin supports harsher industrial transients; slightly larger thermal footprint | Select when extended surge robustness or higher continuous power margin is needed |
Compared with MMBZ5245B, BZX84-C36,235 offers lower dynamic impedance and leakage for improved regulation fidelity; versus BZX84-C36-TP, it trades 50 mW power headroom and 10 W surge capacity for tighter supply chain alignment with Nexperia's industrial-grade qualification.
Availability
BZX84-C36,235 is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) analog I/O modules, and embedded power management requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX84-C36,235 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZX84 series belongs to Nexperia's voltage regulator diode product line, designed specifically for cost-sensitive, space-constrained applications requiring stable DC references or overvoltage clamping in consumer, industrial, and computing systems.
FAQ
What is the maximum continuous forward current for BZX84-C36,235?
The BZX84-C36,235 is not intended for forward conduction; its absolute maximum forward current is 200 mA per limiting values table, but forward voltage is only characterized up to 0.9 V at 10 mA. Continuous forward operation risks thermal runaway and is outside its specified regulation function.
Can BZX84-C36,235 be used in place of a 33 V Zener diode?
No - BZX84-C36,235 has a guaranteed breakdown range of 34.0 V to 38.0 V at 2 mA, making it unsuitable as a direct replacement for a 33 V part like BZX84-C33 (31.0–35.0 V). Substituting would shift regulation point by ≥1 V, potentially violating system voltage tolerances.
How does the n.c. pin (Pin 2) affect PCB layout?
Pin 2 is internally unconnected and must remain floating on the PCB - no copper trace, pad, or solder mask opening should contact it. Including it in a net or grounding it introduces risk of internal short or parametric shift due to stray capacitance or leakage paths.
Is BZX84-C36,235 qualified for automotive applications?
No - per Revision History section 13, this revision explicitly states "Products changed to non-automotive qualification" and directs users to Nexperia's -Q automotive variants. BZX84-C36,235 lacks AEC-Q101 stress testing and is intended for industrial, computing, and consumer applications only.
BZX84-C36,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25.2 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:
- TO-236AB
BZX84-C36,235 FAQ
1.How can I place an order for BZX84-C36,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C36,235 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 BZX84-C36,235 reliable?
The price and inventory of BZX84-C36,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C36,235 is usually 5 days.
3.What payment methods are accepted for BZX84-C36,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C36,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C36,235?
BZX84-C36,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C36,235 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 BZX84-C36,235?
For technical support, including BZX84-C36,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C36,235 requirements.
6.How does Aetrix verify that BZX84-C36,235 is sourced from the original manufacturer or authorized distributors?
All BZX84-C36,235 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 BZX84-C36,235 meets industry standards.
7.What is the process for return or replacement of BZX84-C36,235?
All BZX84-C36,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C36,235, 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 BZX84-C36,235 part is unused and in its original packaging.
Return procedure for BZX84-C36,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C36,235 Tags
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MM5Z5V1ST1G
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