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Nexperia USA Inc. BZX84-C15,235
- Part No.:
- BZX84-C15,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C15,235.pdf
- Description:
- DIODE ZENER 15V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:49,791
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Product details
Overview
BZX84-C15,235 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 15 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and 75 °C/W thermal resistance junction-to-ambient under standard PCB mounting - used for precision low-power voltage reference and overvoltage clamping in sensor signal conditioning circuits.
For engineers reviewing the BZX84-C15,235 datasheet, BZX84-C15,235 pinout, BZX84-C15,235 application, or BZX84-C15,235 equivalent, key selection criteria include Zener voltage tolerance (±5 %), non-repetitive peak reverse power (40 W), differential resistance (200 Ω max), temperature coefficient (+9.2 to +13.0 mV/K), and SOT23-compatible thermal derating behavior.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across load variations by conducting reverse current above its specified Zener breakdown threshold. Its 15 V nominal working voltage is defined at IZ = 5 mA with typical differential resistance of 200 Ω and temperature coefficient ranging from +9.2 mV/K to +13.0 mV/K.
The diode exhibits ≤0.9 V forward voltage at 10 mA, supports non-repetitive surge currents up to 2.0 A (for 100 μs pulses), and is rated for operation from −55 °C to +150 °C ambient, with maximum junction temperature limited to 150 °C and storage temperature spanning −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.8 V to 15.6 V at IZ = 5 mA - defines regulation window under standard test conditions |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous DC power limit before thermal derating |
| Differential Resistance (rdif) | ≤200 Ω at IZ = 5 mA - determines output impedance and regulation sensitivity to current changes |
| Temperature Coefficient (SZ) | +9.2 to +13.0 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Reverse Current (IR) | ≤0.05 μA at VR = 11.4 V - specifies leakage level below breakdown, critical for low-power bias networks |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - enables transient overvoltage suppression without failure |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - defines conduction loss when used in forward-biased protection paths |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.9 mm height, and standard FR4-compatible reflow soldering land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node in reverse-bias regulation configuration; carries reverse leakage and Zener current |
| 2 | Not Connected (n.c.) | Internally unconnected terminal - must remain floating; no PCB trace or solder joint required |
| 3 | Cathode (K) | Connected to higher-potential node; serves as voltage reference output point in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-optimized voltage referencing where tight regulation is not required, such as power rail monitoring or basic clamping |
| 250 mW total power rating | Supports continuous regulation in low-current analog subsystems (e.g., <5 mA bias networks) without external heatsinking |
| Non-repetitive 40 W surge capability | Provides robust ESD and transient immunity in I/O protection circuits without requiring additional TVS devices |
| SOT23 package with n.c. pin | Reduces board area vs. DO-35 while enabling high-density layout; unused pin simplifies routing and avoids accidental shorts |
| −55 °C to +150 °C operating range | Validates use in industrial control modules and automotive under-hood auxiliary circuits outside AEC-Q200 scope |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller I/O Protection |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs measuring thermistor or strain gauge outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing 15 V rail clamp and low-drift bias for op-amp front-end stages. Use Value: Maintains <±1 % full-scale error over −40 °C to +85 °C ambient due to predictable +10.5 mV/K temperature coefficient and 200 Ω dynamic impedance. |
Use Scenario: Protecting GPIO pins of ARM Cortex-M0+ microcontrollers against 8 kV HBM ESD events and 1 kV ring-wave surges. IC Role / Device Role / Timing Role: Low-capacitance (≤150 pF) bidirectional clamp limiting pin voltage to 15.6 V during transients. Use Value: Absorbs 40 W peak surge energy within 100 μs without degradation, preventing latch-up or gate oxide damage in 3.3 V I/O structures. |
| Low-Power Battery Monitor Circuit | DC-DC Converter Feedback Divider |
|
Use Scenario: Detecting end-of-discharge in 12 V sealed lead-acid backup batteries used in network edge routers. IC Role / Device Role / Timing Role: Precision 15 V Zener element in resistive divider feeding comparator hysteresis threshold. Use Value: Delivers stable trip point across battery temperature swings (−20 °C to +60 °C) with <0.5 % drift due to matched TC and low IR leakage (<50 nA @ 11.4 V). |
Use Scenario: Setting output voltage of adjustable buck converter (e.g., MP2307) powering FPGA core rails in telecom baseband cards. IC Role / Device Role / Timing Role: High-stability reference node in feedback resistor chain, replacing less accurate TL431-based solutions. Use Value: Reduces output voltage drift to ±0.8 % over line/load/temperature due to 200 Ω rdif and minimal self-heating at 100 μA bias current. |
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 MMBZ5245BS | 15 V nominal, ±5 %, 350 mW Ptot, 100 Ω rdif, SOT23 package | Higher power rating allows >1 mA regulation current without derating; tighter rdif improves load regulation | Select when >200 mA peak surge handling or <100 Ω dynamic impedance is required for precision references |
| Vishay BZX84-C15-TP | 15 V nominal, ±5 %, 250 mW Ptot, 200 Ω rdif, identical SOT23 pinout and marking | No functional difference; RoHS-compliant variant with alternate tape-and-reel packaging | Choose for dual-sourcing continuity or when Nexperia supply constraints exist; drop-in replacement with same thermal profile |
Compared with MMBZ5245BS, BZX84-C15,235 offers lower cost and identical thermal footprint but trades 100 Ω lower differential resistance for reduced surge margin; versus BZX84-C15-TP, it shares identical electrical specs and mechanical form but differs only in reel packaging and traceability documentation.
Availability
BZX84-C15,235 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller I/O protection, and low-power battery monitoring requiring stable component supply with consistent parametric performance across production lots.
Supply support for BZX84-C15,235 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 manufacturing rooted in process technology leadership and automotive-grade quality systems.
The BZX84 series belongs to Nexperia's general-purpose Zener diode product line, designed specifically for cost-sensitive, space-constrained voltage regulation and transient suppression in consumer, industrial, and communications equipment.
FAQ
What is the maximum continuous Zener current for BZX84-C15,235 at 70 °C ambient?
At 70 °C ambient, the device's 250 mW power rating derates linearly from 25 °C using Rth(j-a) = 500 K/W. The allowable power drops to 137.5 mW, supporting a maximum continuous Zener current of 9.2 mA at 15 V - calculated as (250 mW × (1 − (70 − 25)/125)) ÷ 15 V.
Can BZX84-C15,235 be used in place of a 1N4744A in a 15 V regulator?
No - the 1N4744A uses DO-41 through-hole packaging and is rated for 1 W power dissipation, whereas BZX84-C15,235 is an SOT23 surface-mount device with 250 mW rating. Substitution requires verifying thermal design, PCB layout, and surge requirements; direct replacement is unsafe without derating analysis and layout revision.
What does the '235' suffix indicate in BZX84-C15,235?
The '235' is Nexperia's internal package and reel code indicating SOT23 packaging in 3,000-unit tape-and-reel format with standard moisture sensitivity level (MSL 1), compliant with J-STD-020. It does not affect electrical specifications, which are fully defined by the 'BZX84-C15' base type number.
Is BZX84-C15,235 qualified for automotive applications?
No - this part is explicitly marked as non-automotive qualified per Nexperia's Rev. 7 datasheet. It lacks AEC-Q200 stress testing and automotive-grade traceability. For automotive use, select the BZX84-C15-Q series variants, which undergo extended temperature cycling, vibration, and humidity testing per automotive standards.
BZX84-C15,235 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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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-C15,235 FAQ
1.How can I place an order for BZX84-C15,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C15,235 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-C15,235 reliable?
The price and inventory of BZX84-C15,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C15,235 is usually 5 days.
3.What payment methods are accepted for BZX84-C15,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C15,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C15,235?
BZX84-C15,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C15,235 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-C15,235?
For technical support, including BZX84-C15,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C15,235 requirements.
6.How does Aetrix verify that BZX84-C15,235 is sourced from the original manufacturer or authorized distributors?
All BZX84-C15,235 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-C15,235 meets industry standards.
7.What is the process for return or replacement of BZX84-C15,235?
All BZX84-C15,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C15,235, 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-C15,235 part is unused and in its original packaging.
Return procedure for BZX84-C15,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C15,235 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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