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Nexperia USA Inc. BZX84J-C56,115
- Part No.:
- BZX84J-C56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C56,115.pdf
- Description:
- DIODE ZENER 56V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,801
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Product details
Overview
BZX84J-C56,115 from Nexperia is a 56 V ±5 % Zener voltage regulator diode in SOD323F (SC-90) surface-mount package, rated for 550 mW total power dissipation and AEC-Q101 qualified for automotive use. It delivers stable reverse breakdown at 56 V with 39.2 Ω differential resistance at IZ = 2 mA and supports non-repetitive peak reverse current up to 0.3 A under 100 µs square-wave surge conditions. It serves as a precision reference or overvoltage clamp in power supply feedback loops and ESD-protected sensor interfaces.
For engineers reviewing the BZX84J-C56,115 datasheet, BZX84J-C56,115 pinout, BZX84J-C56,115 application, or BZX84J-C56,115 equivalent, key selection criteria include its 56 V nominal Zener voltage, ±5 % tolerance, low 39.2 Ω dynamic impedance, AEC-Q101 qualification, and SC-90 thermal performance (Rth(j-a) = 230 K/W on FR4).
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its 56 V nominal Zener voltage is specified at IZ = 2 mA, with a positive temperature coefficient of +52.2 mV/K at that test current, enabling predictable drift compensation in voltage-reference designs.
The device uses planar epitaxial construction for tight parameter control and low leakage, with IR ≤ 0.05 µA at VR = 44.8 V and typical capacitance of 49 pF at 1 MHz and 0 V bias. Its thermal resistance from junction to ambient is 230 K/W on standard FR4 PCB, limiting continuous power handling without derating above Tamb = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 56 V nominal at IZ = 2 mA; ±5 % tolerance ensures predictable clamping within 53.2–58.8 V range |
| Differential Resistance rdiff | 39.2 Ω at IZ = 2 mA; low impedance maintains regulation stability against load current variation |
| Total Power Dissipation Ptot | 550 mW at Tamb ≤ 25 °C; requires thermal derating above ambient temperature per Rth(j-a) = 230 K/W |
| Non-repetitive Peak Reverse Current IZSM | 0.3 A at tp = 100 µs, square wave; enables transient overvoltage suppression without failure |
| Reverse Leakage Current IR | ≤ 0.05 µA at VR = 44.8 V; ensures minimal standby power loss in high-impedance reference circuits |
| Junction Temperature Range | –55 °C to +150 °C; supports operation in under-hood automotive environments and industrial control enclosures |
Pinout & Package
The BZX84J-C56,115 is housed in a SOD323F (SC-90) plastic surface-mount package - 2.3 mm × 1.35 mm × 0.95 mm body with 0.65 mm lead pitch and cathode-marked top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path; must be held at lower voltage than cathode for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power rails |
| Low differential resistance | 39.2 Ω at 2 mA enables <1 % output deviation across ±10 mA load step changes |
| Wide Zener voltage range | 56 V nominal fits mid-range voltage monitoring needs where 47–62 V references are required |
| Small SOD323F footprint | 0.65 mm pitch and 1.35 mm width allow dense placement on space-constrained PCBs |
| Controlled temperature coefficient | +52.2 mV/K at 2 mA permits predictable thermal drift modeling in precision references |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Clamping 48 V battery-supplied microcontroller I/O lines against load-dump transients. IC Role / Device Role / Timing Role: Zener-based overvoltage protection element placed between signal line and ground. Use Value: Withstands 0.3 A surge at 100 µs duration while holding voltage ≤ 58.8 V, preventing MCU input damage. |
Use Scenario: Protecting 24 V analog input front-end from field-wiring faults and induced surges. IC Role / Device Role / Timing Role: Precision shunt regulator establishing safe upper limit for op-amp input stage. Use Value: 39.2 Ω rdiff ensures <0.4 V shift across 10 mA fault current, preserving ADC accuracy. |
| Telecom DC-DC Feedback Reference | Medical Sensor Signal Conditioning |
Use Scenario: Providing stable 56 V reference for isolated flyback converter feedback divider. IC Role / Device Role / Timing Role: Voltage reference node in optocoupler-coupled secondary-side regulation loop. Use Value: ±5 % tolerance and +52.2 mV/K TC allow predictable output setpoint calibration across –40 to +125 °C. |
Use Scenario: Biasing and protecting low-noise instrumentation amplifier inputs in portable diagnostics equipment. IC Role / Device Role / Timing Role: Low-leakage (≤0.05 µA) clamp preventing ESD-induced saturation during patient contact events. Use Value: 49 pF capacitance avoids signal integrity degradation at ≤100 kHz sensor bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C56,115 | Same 56 V ±5 % rating but not AEC-Q101 qualified; higher rdiff (40 Ω vs. 39.2 Ω); identical SOD323F package | Limited to commercial-grade power supplies and consumer electronics; unsuitable for automotive deployment | Select when AEC-Q101 compliance is unnecessary and cost sensitivity outweighs qualification requirements |
| MMSZ5256B-TP | 56 V ±5 %, 500 mW rating, 40 Ω rdiff, SOD-123 package (larger footprint, 2.7 mm × 1.6 mm), no AEC-Q101 claim | Requires PCB layout revision due to larger pad spacing; thermal resistance ~200 K/W on FR4, slightly better power handling | Choose only if existing design uses SOD-123 and board rework is prohibitive; verify surge capability (IZSM = 0.25 A) |
Compared with BZX84-C56,115 and MMSZ5256B-TP, the BZX84J-C56,115 uniquely combines AEC-Q101 qualification, lowest differential resistance (39.2 Ω), and smallest SOD323F footprint-making it optimal for space-constrained, safety-critical automotive voltage references where long-term reliability under thermal cycling is mandatory.
Availability
BZX84J-C56,115 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog input stages, telecom DC-DC feedback networks, and medical sensor signal conditioning requiring stable component supply and AEC-Q101 assurance.
Supply support for BZX84J-C56,115 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 logic, discrete, and MOSFET solutions with emphasis on reliability, efficiency, and miniaturization.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient protection in automotive and industrial power systems.
FAQ
What is the maximum continuous reverse current the BZX84J-C56,115 can sustain at 25 °C ambient?
The device is rated for total power dissipation of 550 mW at Tamb ≤ 25 °C. At its 56 V Zener voltage, this corresponds to a maximum continuous reverse current of approximately 9.8 mA (550 mW ÷ 56 V). Operation beyond this requires strict thermal derating per its 230 K/W junction-to-ambient thermal resistance.
Does the BZX84J-C56,115 have a specified Zener voltage temperature coefficient?
Yes. At IZ = 2 mA, the temperature coefficient is +52.2 mV/K, meaning the Zener voltage increases by 52.2 mV per degree Celsius rise in junction temperature. This value is confirmed in Table 9 of the datasheet for the C56 variant and enables accurate drift modeling in reference designs.
Can the BZX84J-C56,115 replace the BZX84-C56,115 in an existing design without layout changes?
Yes-both share identical SOD323F (SC-90) package dimensions, pinout (cathode/anode), and marking orientation. The BZX84J-C56,115 offers tighter rdiff (39.2 Ω vs. 40 Ω) and AEC-Q101 qualification, so it is a direct drop-in upgrade where automotive reliability is required.
What is the reverse leakage current specification at 80 % of nominal Zener voltage?
At VR = 44.8 V (80 % of 56 V), the maximum reverse leakage current is 0.05 µA, as specified in Table 9 for the BZX84J-C56 type. This ultra-low leakage ensures negligible error contribution in high-impedance reference dividers and battery-powered sensor nodes.
BZX84J-C56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 120 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
BZX84J-C56,115 FAQ
1.How can I place an order for BZX84J-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C56,115 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 BZX84J-C56,115 reliable?
The price and inventory of BZX84J-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C56,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C56,115?
BZX84J-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C56,115 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 BZX84J-C56,115?
For technical support, including BZX84J-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C56,115 requirements.
6.How does Aetrix verify that BZX84J-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C56,115 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 BZX84J-C56,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C56,115?
All BZX84J-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C56,115, 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 BZX84J-C56,115 part is unused and in its original packaging.
Return procedure for BZX84J-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C56,115 Tags
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MMBZ5240B-7-F
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