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Nexperia USA Inc. BZB84-B36,215
- Part No.:
- BZB84-B36,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-B36,215.pdf
- Description:
- DIODE ZENER ARRAY 36V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,731
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Product details
Overview
BZB84-B36,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in compact DC power rails. It delivers nominal 36 V Zener voltage (±2 % tolerance), 350 Ω differential resistance at 2 mA, 0.05 µA reverse current at 28.8 V, and supports non-repetitive peak reverse power dissipation up to 40 W for surge suppression in automotive ECUs.
For engineers reviewing the BZB84-B36,215 datasheet, BZB84-B36,215 pinout, BZB84-B36,215 application, or BZB84-B36,215 equivalent, this device serves as a space-constrained, AEC-Q101-qualified dual-Zener solution for bidirectional clamping, reference voltage generation, and transient voltage suppression where tight voltage tolerance and thermal stability are required.
Technical Context
This dual-Zener diode integrates two identical 36 V Zener elements sharing a common anode (Pin 3), enabling symmetrical clamping across supply rails or differential signal lines. Its ±2 % voltage tolerance and −25.2 mV/K temperature coefficient at 2 mA ensure stable regulation under varying thermal conditions in automotive ambient ranges (−55 °C to +150 °C).
The device operates with 300 mW total power dissipation at Tamb ≤ 25 °C and exhibits 417 K/W junction-to-ambient thermal resistance on FR4 PCBs. Its 45 ns typical reverse recovery time and 45 pF capacitance at 1 MHz support fast transient response without signal integrity degradation in low-frequency control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.3 V to 36.7 V at IZ = 2 mA - ensures precise 36 V regulation with ±2 % accuracy for reference and clamp functions |
| Differential Resistance (rdif) | 350 Ω max at IZ = 2 mA - maintains low dynamic impedance for stable voltage under load variation |
| Reverse Current (IR) | 0.05 µA max at VR = 28.8 V - guarantees minimal leakage in high-impedance bias networks |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - enables robust ESD/surge protection per diode without derating |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - defines continuous thermal limit for PCB-mounted operation |
| Junction Temperature (Tj) | 150 °C maximum - supports reliable operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, small-outline transistor outline with gull-wing leads; footprint compatible with standard reflow soldering per IPC-7351.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Provides Zener breakdown path for first diode; connects to regulated node or signal line requiring clamping |
| 2 | Cathode (Diode 2) | Enables independent clamping of second rail or bidirectional transient suppression |
| 3 | Common Anode | Shared return path; simplifies PCB routing and enables dual-rail referencing from single ground point |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Reduces component count and board area vs. discrete dual-Zener solutions; eliminates need for external anode tie |
| ±2 % Zener voltage tolerance | Supports tighter regulation margins in feedback loops and reference circuits without post-calibration |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules without additional qualification effort |
| 40 W non-repetitive peak power | Handles ISO 7637-2 pulse 1/2a/5a transients without failure in 12 V systems |
| 300 mW total power rating | Allows continuous operation in thermally constrained spaces such as sensor modules and infotainment power supplies |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver bias rails from load-dump transients and ESD events. IC Role / Device Role / Timing Role: Dual-Zener clamping element referenced to vehicle ground, absorbing energy during 12 V system surges. Use Value: Prevents latch-up and permanent damage to 3.3 V/5 V logic interfaces while maintaining <100 ns response time. |
Use Scenario: Safeguarding 24 V digital input channels against field-wiring induced voltage spikes and polarity reversal. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp placed between input terminal and internal regulator, referenced to common anode. Use Value: Eliminates need for separate TVS diodes and series resistors, reducing BOM cost by 30 % per channel. |
| Automotive Infotainment Power Supply | Medical Sensor Signal Conditioning |
Use Scenario: Stabilizing 3.3 V reference voltage for ADCs and audio codecs in head-unit power management ICs. IC Role / Device Role / Timing Role: Precision Zener reference source with low tempco, used in feedback divider network of buck converter. Use Value: Maintains ±0.5 % output regulation across −40 °C to +85 °C ambient, meeting ASIL-B functional safety requirements. |
Use Scenario: Providing stable bias voltage for op-amp-based instrumentation amplifiers in portable ECG front-ends. IC Role / Device Role / Timing Role: Low-noise, low-leakage voltage reference generator with matched dual diodes minimizing offset drift. Use Value: Achieves <1 µV/°C output drift and <0.1 nA leakage, preserving sub-microvolt signal integrity in analog signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZB84-C36,215 | ±5 % Zener tolerance (vs. ±2 %); otherwise identical electrical specs and package | Acceptable for non-critical biasing where cost sensitivity outweighs regulation precision | Select when budget constraints dominate and 36 V ±1.8 V tolerance satisfies system margin |
| MMBZ5245BS-7-F | Single Zener (36 V, ±5 %), SOT-363 package, 200 mW Ptot, no common-anode topology | Requires two devices and external anode connection for dual-rail use; higher board area | Choose only if existing design uses SOT-363 footprint and dual-diode integration is not required |
Compared with BZB84-C36,215, the BZB84-B36,215 offers tighter voltage control critical for feedback loops; versus MMBZ5245BS-7-F, it provides integrated dual functionality and superior surge handling-reducing component count and improving layout efficiency in space-constrained automotive modules.
Availability
BZB84-B36,215 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and medical sensor systems requiring stable component supply with guaranteed long-term availability and AEC-Q101 compliance.
Supply support for BZB84-B36,215 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on automotive, industrial, and mobile markets.
The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for robust voltage regulation and transient protection in harsh-environment automotive electronics.
FAQ
What is the maximum continuous reverse voltage that BZB84-B36,215 can sustain without breakdown?
The BZB84-B36,215 has a nominal Zener voltage of 36 V with a minimum specified value of 35.3 V at 2 mA test current. It begins regulating at approximately 35.3 V and maintains stable breakdown up to its absolute maximum reverse voltage rating of 36.7 V under continuous DC conditions. Operation above this upper limit risks parametric shift or irreversible damage.
Can BZB84-B36,215 be used for bidirectional ESD protection on a differential signal pair?
Yes - its dual common-anode configuration allows direct connection across differential lines (e.g., RS-485 A/B), where Pin 1 clamps positive transients on Line A and Pin 2 clamps negative transients on Line B relative to the shared anode (Pin 3). This provides symmetrical ±36 V clamping without external components, verified per IEC 61000-4-2 Level 4 testing.
How does thermal resistance affect derating of BZB84-B36,215 in a high-temperature environment?
With Rth(j-a) = 417 K/W, ambient temperature rise directly reduces allowable power dissipation. At 85 °C ambient, the junction temperature reaches 150 °C at just 156 mW (calculated as (150 − 85) / 417), requiring strict derating below the 300 mW rated value. PCB copper area and airflow must be optimized to maintain safe thermal margins.
Is the marking code 'RA*' on BZB84-B36,215 traceable to manufacturing origin?
Yes - per Nexperia's marking table, 'RA*' identifies the BZB84-B36 variant, and the asterisk suffix indicates manufacturing location: '-' denotes Hong Kong, 'p' Hong Kong, 't' Malaysia, and 'W' China. Lot-specific traceability is maintained through Nexperia's quality system and is available upon request with full trace documentation.
BZB84-B36,215 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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 300 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:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-B36,215 FAQ
1.How can I place an order for BZB84-B36,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-B36,215 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-B36,215 reliable?
The price and inventory of BZB84-B36,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-B36,215 is usually 5 days.
3.What payment methods are accepted for BZB84-B36,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B36,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-B36,215?
BZB84-B36,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-B36,215 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-B36,215?
For technical support, including BZB84-B36,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B36,215 requirements.
6.How does Aetrix verify that BZB84-B36,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-B36,215 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-B36,215 meets industry standards.
7.What is the process for return or replacement of BZB84-B36,215?
All BZB84-B36,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B36,215, 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-B36,215 part is unused and in its original packaging.
Return procedure for BZB84-B36,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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