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Nexperia USA Inc. BZB84-C39,215
- Part No.:
- BZB84-C39,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C39,215.pdf
- Description:
- DIODE ZENER ARRAY 39V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,743
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Product details
Overview
BZB84-C39,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, rated for 39 V nominal working voltage (±5 % tolerance), 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves voltage regulation and overvoltage protection functions in automotive power rails and industrial sensor interfaces.
For engineers reviewing the BZB84-C39,215 datasheet, BZB84-C39,215 pinout, BZB84-C39,215 application, or BZB84-C39,215 equivalent, this page delivers verified Zener voltage, differential resistance, thermal resistance, AEC-Q101 qualification status, and dual-diode configuration details essential for circuit-level design validation and automotive-grade component selection.
Technical Context
This dual Zener diode integrates two independent 39 V Zener elements sharing a common anode (Pin 3), enabling bidirectional clamping or complementary reference generation in compact space-constrained layouts. Its ±5 % voltage tolerance and 350 Ω typical differential resistance at IZ = 2 mA support stable regulation under moderate load variation.
Designed for automotive environments, it meets AEC-Q101 stress-test requirements and operates across −55 °C to +150 °C ambient temperature. Thermal resistance from junction to solder point is 100 K/W, supporting reliable operation on FR4 PCBs with standard SOT23 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 39 V ±5 % - defines clamping threshold for overvoltage protection in 36 V automotive systems |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - limits continuous DC power handling per device |
| Non-repetitive Peak Reverse Power | 40 W (tp = 100 µs) - supports transient surge suppression per diode |
| Differential Resistance | 350 Ω max at IZ = 2 mA - determines regulation stiffness and output impedance in feedback paths |
| Reverse Current | 0.05 µA max at VR = 30.4 V - ensures low leakage in high-impedance bias networks |
| Temperature Coefficient | +27.3 mV/K typical - enables predictable voltage drift compensation in temperature-sensitive references |
| Junction Temperature Limit | 150 °C - sets maximum allowable die temperature for sustained reliability in engine bay applications |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package with 3 leads; 1.3 mm × 2.9 mm footprint, 1.1 mm height, and tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to regulated node or signal line requiring 39 V clamping in one polarity |
| 2 | Cathode (Diode 2) | Enables symmetrical clamping or dual-rail referencing when used with shared anode |
| 3 | Common Anode | Single tie-point for both Zener cathodes; simplifies PCB routing and reduces net count |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode topology | Reduces component count and board area vs. discrete dual-Zener solutions in bidirectional clamp circuits |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics where reliability under thermal cycling and vibration is mandatory |
| Wide voltage range (2.4–75 V) | Supports standardized design reuse across multiple vehicle platforms using same SOT23 footprint |
| Low thermal resistance (100 K/W j-to-sp) | Enables higher pulse energy handling without external heatsinking on standard FR4 PCBs |
| ±5 % voltage tolerance (C-series) | Provides cost-optimized precision for non-critical regulation tasks while maintaining interchangeability within E24 range |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Clamping transients on 36 V battery-fed ECUs during load dump events. IC Role / Device Role / Timing Role: Dual-Zener acts as bidirectional overvoltage clamp referenced to ground, absorbing surge energy before downstream regulators. Use Value: 40 W peak power rating and 39 V breakdown enable compliance with ISO 7637-2 Pulse 5a without additional TVS devices. |
Use Scenario: Providing stable 39 V reference for analog front-end amplifiers in 4–20 mA loop-powered sensors. IC Role / Device Role / Timing Role: Functions as precision shunt reference with low temperature coefficient (+27.3 mV/K) and minimal leakage (0.05 µA). Use Value: Enables <1 % reference drift over −40 °C to +125 °C ambient, meeting industrial accuracy requirements. |
| USB-C PD Adapter Feedback Network | Programmable Logic Controller Input Protection |
|
Use Scenario: Stabilizing optocoupler feedback voltage in isolated 39 V output USB-C PD adapters. IC Role / Device Role / Timing Role: Dual Zener provides matched reference and clamp function in secondary-side regulation loop. Use Value: Common-anode configuration allows single-point grounding of both cathodes, reducing noise coupling into feedback path. |
Use Scenario: Protecting 24 V digital input channels in PLC modules against field-wiring induced surges. IC Role / Device Role / Timing Role: Acts as fast-acting voltage limiter between input terminal and microcontroller GPIO. Use Value: 350 Ω differential resistance ensures rapid response to >39 V transients while limiting fault current to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | Single Zener (12 V), SOT23, ±5 %, 225 mW - no dual configuration or common-anode topology | Only suitable for unidirectional clamping; requires two devices for bidirectional function | Select only if board layout permits separate anode routing and lower voltage (12 V) suffices |
| BZX84-C39 | Single Zener (39 V), SOT23, ±5 %, 300 mW - lacks second diode and common-anode capability | Cannot provide symmetrical clamping or dual-reference outputs without external components | Choose when space allows discrete placement and only one clamping direction is needed |
Compared with MMBZ5240BLT1G and BZX84-C39, BZB84-C39,215 uniquely delivers dual 39 V Zener elements in one SOT23 package with shared anode-reducing component count by 50 % and eliminating inter-device matching variance in critical clamping paths.
Availability
BZB84-C39,215 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, USB-C PD adapter feedback networks, and PLC input protection requiring stable component supply and AEC-Q101-compliant performance.
Supply support for BZB84-C39,215 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 logic, discrete, and MOSFET devices, with leadership in automotive-qualified components.
The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum non-repetitive peak reverse current for BZB84-C39,215?
The maximum non-repetitive peak reverse current is 0.70 A, measured under 100 µs square-wave pulse conditions at Tj = 25 °C. This value corresponds directly to the 40 W peak power rating and 39 V Zener voltage, and is validated per IEC 60134 limiting values.
Does BZB84-C39,215 support bidirectional clamping?
Yes - its dual common-anode configuration (Pins 1 and 2 as cathodes, Pin 3 as shared anode) enables true bidirectional clamping: one diode conducts during positive overvoltage, the other during negative transients relative to the anode node.
How does the ±5 % tolerance affect regulation accuracy in precision circuits?
The ±5 % tolerance means the actual Zener voltage falls between 37.05 V and 40.95 V at IZ = 2 mA. For precision applications, this requires system-level calibration or use in non-critical clamping roles; tighter tolerance variants (e.g., B-series ±2 %) are available but not offered in this specific part number.
Can BZB84-C39,215 be used in place of two separate BZX84-C39 diodes?
Yes - it replaces two BZX84-C39 devices with identical electrical specs while halving PCB area and eliminating inter-device parameter mismatch. However, the shared anode requires circuit redesign to route both cathodes independently and reference the common node correctly.
BZB84-C39,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 130 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-C39,215 FAQ
1.How can I place an order for BZB84-C39,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C39,215 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 BZB84-C39,215 reliable?
The price and inventory of BZB84-C39,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C39,215 is usually 5 days.
3.What payment methods are accepted for BZB84-C39,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C39,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C39,215?
BZB84-C39,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C39,215 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 BZB84-C39,215?
For technical support, including BZB84-C39,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C39,215 requirements.
6.How does Aetrix verify that BZB84-C39,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-C39,215 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 BZB84-C39,215 meets industry standards.
7.What is the process for return or replacement of BZB84-C39,215?
All BZB84-C39,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C39,215, 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 BZB84-C39,215 part is unused and in its original packaging.
Return procedure for BZB84-C39,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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