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Nexperia USA Inc. BZB84-C36,215
- Part No.:
- BZB84-C36,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C36,215.pdf
- Description:
- DIODE ZENER ARRAY 36V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
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Product details
Overview
BZB84-C36,215 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 (±5 % tolerance), 350 Ω typical 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-C36,215 datasheet, BZB84-C36,215 pinout, BZB84-C36,215 application, or BZB84-C36,215 equivalent, this device is selected for dual-rail clamping, low-power reference stabilization, and AEC-Q101-compliant transient protection where space-constrained SOT23 packaging and tight voltage accuracy are critical.
Technical Context
This dual-Zener device integrates two independent Zener junctions sharing a common anode (Pin 3), enabling bidirectional voltage clamping or dual-rail regulation from a single footprint. Its ±5 % VZ tolerance (34.0 V to 38.0 V) and 25.2 mV/K temperature coefficient at 2 mA support stable operation across −55 °C to +150 °C ambient.
The 300 mW total power dissipation limit and 417 K/W junction-to-ambient thermal resistance require careful PCB copper area planning. Its 45 pF capacitance at 0 V and 0.9 V forward voltage at 10 mA confirm suitability for low-frequency regulation-not RF signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.0 V to 38.0 V at IZ = 2 mA - defines clamping threshold for overvoltage events in 36 V nominal systems |
| Differential Resistance (rdif) | 350 Ω typical at IZ = 2 mA - determines regulation stiffness and output voltage deviation under load changes |
| Reverse Current (IR) | 0.05 µA max at VR = 28.8 V - ensures minimal leakage in standby mode of battery-powered modules |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - enables single-event ESD/ISO 7637-2 pulse suppression without failure |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction Temperature (Tj) | 150 °C maximum - allows operation in under-hood automotive environments with localized heating |
| 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 format with 1.3 mm height, 2.9 mm length, and 1.3 mm width; optimized for reflow soldering on high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to regulated node requiring 36 V clamping; reverse-biased during normal operation |
| 2 | Cathode (Diode 2) | Provides second independent clamping path; enables dual-polarity or redundant protection |
| 3 | Common Anode | Reference terminal tied to system ground or negative rail; shared current return path for both Zeners |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Enables compact dual-rail protection or bidirectional clamping without discrete component pairing |
| ±5 % Zener voltage tolerance (C-series) | Guarantees predictable clamping within 1.8 V window-critical for compliance with ISO 16750-2 supply transients |
| AEC-Q101 qualification | Validated for automotive use including 1000-cycle temperature cycling and 1000-hour high-temp reverse bias |
| 300 mW total power rating | Supports continuous regulation in low-current sensor interfaces and microcontroller I/O protection circuits |
| 40 W non-repetitive peak power | Withstands 100 µs ISO 7637-2 Pulse 1 (−150 V) and Pulse 3a (−200 V) without degradation |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting LIN bus transceiver inputs against load dump and jump-start surges. IC Role / Device Role / Timing Role: Dual-Zener clamps both LIN_H and LIN_L lines to ground via common anode, limiting voltage to ±36 V. Use Value: Prevents transceiver latch-up during 12 V system transients while maintaining <1 µA leakage in sleep mode. |
Use Scenario: Stabilizing 3.3 V reference for 16-bit ADC in programmable logic controller analog input card. IC Role / Device Role / Timing Role: Provides low-drift, low-noise shunt reference using one Zener leg; second leg unused or paralleled for redundancy. Use Value: Achieves <0.5 % full-scale error drift over −40 °C to +85 °C due to matched thermal coefficient and low rdif. |
| Automotive Infotainment Power Sequencing | Smart Meter Voltage Monitoring |
Use Scenario: Controlling enable timing of 5 V and 3.3 V LDOs via Zener-based reset supervisor circuit. IC Role / Device Role / Timing Role: One Zener leg triggers POR at 4.75 V; second leg monitors 3.3 V rail with hysteresis via resistor divider. Use Value: Eliminates need for dedicated supervisor IC-reduces BOM count and board area by 30 %. |
Use Scenario: Detecting phase loss in 3-phase 230 VAC smart meter by monitoring rectified DC bus voltage. IC Role / Device Role / Timing Role: Clamps auxiliary 36 V supply rail derived from capacitive dropper, protecting MCU GPIO during brownout. Use Value: Survives 10,000+ 400 V surge events per IEC 61000-4-5 Level 3 without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5241BS-7-F | Single Zener, 10 V, ±5 %, SOT23 - no dual configuration or common-anode topology | Requires two devices for dual-rail use; higher assembly cost and larger footprint | Select only when single-rail clamping suffices and board space permits discrete duplication |
| BZX84-C36-7-F | Single Zener, 36 V, ±5 %, SOT23 - identical VZ spec but lacks second cathode terminal | Cannot implement bidirectional clamping or shared-anode dual-path protection | Choose when only one regulated rail exists and cost-per-device is prioritized over functional integration |
Compared with MMBZ5241BS-7-F and BZX84-C36-7-F, BZB84-C36,215 uniquely delivers dual independent Zener functions in one SOT23 footprint-reducing component count by 50 % and enabling symmetrical clamping architectures unachievable with single-diode alternatives.
Availability
BZB84-C36,215 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, infotainment power sequencing, and smart meter voltage monitoring requiring stable component supply and AEC-Q101 compliance.
Supply support for BZB84-C36,215 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 essential efficiency-enhancing components, with leadership in logic, discretes, and MOSFETs for automotive and industrial markets.
The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh-environment automotive control units and industrial automation systems.
FAQ
What is the maximum continuous reverse current the BZB84-C36,215 can sustain without exceeding its 300 mW power limit?
At 25 °C ambient, the maximum continuous reverse current is 8.33 mA, calculated as Ptot/VZmin = 300 mW / 34.0 V. This assumes no additional thermal derating; actual usable current drops to ~5.5 mA at 85 °C ambient due to Rth(j-a) = 417 K/W and Tjmax = 150 °C.
Can the two Zener diodes in the BZB84-C36,215 be used independently with separate anode connections?
No-the anodes are internally bonded to a single terminal (Pin 3). Independent anode routing is physically impossible. Both cathodes (Pins 1 and 2) must share the same anode reference, limiting use to common-anode configurations such as dual-rail clamping or back-to-back transient suppression.
How does the 25.2 mV/K temperature coefficient affect regulation accuracy over temperature in a 36 V power rail?
Over −40 °C to +125 °C, the Zener voltage shifts by ±4.2 V (25.2 mV/K × 165 K), resulting in a total span of 31.8 V to 40.2 V. For applications needing tighter stability, external compensation or selection of lower-coefficient variants (e.g., BZB84-B36) is required.
Is the BZB84-C36,215 suitable for protecting USB-C VBUS lines against 20 V overvoltage events?
No-its 34–38 V Zener range is too high for 5–20 V VBUS protection. Using it would allow destructive overvoltage to reach downstream circuitry before clamping activates. A 6.8 V or 12 V dual-Zener (e.g., BZB84-C12) is appropriate for USB-C VBUS supervision.
BZB84-C36,215 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:
- ±5%
- 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-C36,215 FAQ
1.How can I place an order for BZB84-C36,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C36,215 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-C36,215 reliable?
The price and inventory of BZB84-C36,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C36,215 is usually 5 days.
3.What payment methods are accepted for BZB84-C36,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C36,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C36,215?
BZB84-C36,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C36,215 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-C36,215?
For technical support, including BZB84-C36,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C36,215 requirements.
6.How does Aetrix verify that BZB84-C36,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-C36,215 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-C36,215 meets industry standards.
7.What is the process for return or replacement of BZB84-C36,215?
All BZB84-C36,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C36,215, 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-C36,215 part is unused and in its original packaging.
Return procedure for BZB84-C36,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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