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Nexperia USA Inc. BZB84-C24,215
- Part No.:
- BZB84-C24,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C24,215.pdf
- Description:
- DIODE ZENER ARRAY 24V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
BZB84-C24,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in compact PCB layouts. It delivers 24 V nominal Zener voltage (±5 % tolerance), 250 Ω typical differential resistance at 5 mA, and supports non-repetitive peak reverse power dissipation up to 40 W with 100 µs square-wave pulses - used in automotive body control modules for ECU rail clamping.
For engineers reviewing the BZB84-C24,215 datasheet, BZB84-C24,215 pinout, BZB84-C24,215 application, or BZB84-C24,215 equivalent, this page provides verified pin functions, thermal derating guidance, AEC-Q101 qualification status, and direct substitution options for dual-Zener voltage reference designs.
Technical Context
This dual-Zener device integrates two independent 24 V Zener diodes sharing a common anode (Pin 3), enabling bidirectional clamping or dual-rail regulation from a single footprint. Its ±5 % voltage tolerance (22.8 V to 25.6 V) and low temperature coefficient (16.8 mV/K at 5 mA) support stable reference generation across −55 °C to +150 °C ambient.
The SOT23 package provides 417 K/W junction-to-ambient thermal resistance in free air, with 300 mW total power dissipation per device at Tamb ≤ 25 °C. Non-repetitive surge capability is defined at tp = 100 µs, Tj = 25 °C prior to surge, delivering 1.25 A peak reverse current at 24 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8 V to 25.6 V at IZ = 5 mA - ensures ±5 % regulation accuracy for 24 V supply monitoring |
| Differential Resistance (rdif) | 250 Ω max at IZ = 5 mA - limits output impedance drift under load variation in feedback paths |
| Reverse Current (IR) | 0.05 µA max at VR = 19.2 V - guarantees low leakage in high-impedance bias networks |
| Non-repetitive Peak Reverse Current (IZSM) | 1.25 A at tp = 100 µs - enables transient suppression of ISO 7637-2 pulse 1/2a surges |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - defines continuous DC power handling before thermal derating begins |
| Junction Temperature (Tj) | 150 °C maximum - sets upper limit for 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, 1.3 mm × 2.9 mm × 1.1 mm body, gull-wing leads, tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to 24 V regulated node or protected signal line; reverse-biased during clamping |
| 2 | Cathode (Diode 2) | Provides second 24 V clamping path - enables dual-rail protection or symmetrical voltage reference |
| 3 | Common Anode | Shared anode tied to system ground or low-side reference; establishes bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Reduces board space by 50 % vs. two discrete Zeners while maintaining independent cathode routing |
| ±5 % Zener voltage tolerance (C-series) | Meets cost-sensitive automotive sensor interface requirements without trimming resistors |
| 40 W non-repetitive peak reverse power | Handles ISO 16750-2 load-dump transients up to 100 µs without failure |
| AEC-Q101 qualification | Validated for under-hood use including 1000-cycle temperature cycling (−40 °C to +125 °C) |
| Low 0.9 V forward voltage | Enables use as polarity protection diode in 3.3 V/5 V logic rails with minimal dropout loss |
Applications
| Automotive Body Control Unit (BCU) | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Clamping 24 V CAN transceiver power rail against load dump and jump-start surges. IC Role / Device Role / Timing Role: Dual-Zener voltage clamp placed between VCC and GND, activated within nanoseconds of overvoltage onset. Use Value: Limits rail excursion to ≤25.6 V, preventing damage to 24 V-rated CAN PHY ICs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Protecting 24 V digital input channels from field-wiring induced transients in factory automation. IC Role / Device Role / Timing Role: Front-end shunt regulator on optocoupler input side, sinking surge current before it reaches isolation barrier. Use Value: Absorbs >1.25 A transient peaks without latch-up, preserving channel integrity during 2 kV EFT bursts. |
| Automotive HVAC Control Module | Medical Infusion Pump Power Monitoring |
|
Use Scenario: Providing stable 24 V reference for microcontroller ADC measurement of motor driver supply voltage. IC Role / Device Role / Timing Role: Precision Zener reference connected to ADC VREF pin, biased at 5 mA for optimal rdif stability. Use Value: Maintains <±0.5 % reference accuracy across −40 °C to +105 °C, enabling ±1 % supply telemetry resolution. |
Use Scenario: Monitoring 24 V auxiliary power rail in battery-backed infusion pump controller for low-voltage shutdown detection. IC Role / Device Role / Timing Role: Low-leakage (≤0.05 µA) Zener element in resistive divider feeding supervisor IC threshold input. Use Value: Enables reliable brown-out detection at 22.8 V while drawing <1 nA additional current from backup battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Single Zener, 24 V ±5 %, SOT363 package, 200 mW Ptot, no AEC-Q101 rating | Requires two devices for dual-clamp function; lacks automotive qualification and surge robustness | Select only for non-automotive consumer applications where space allows dual placement and surge immunity is not required |
| BZX84-C24-7-F | Single Zener, 24 V ±5 %, SOT23, 300 mW Ptot, AEC-Q101 qualified, no dual-cathode topology | Cannot provide simultaneous bidirectional clamping; needs external anode tie for dual-rail use | Choose when only one 24 V clamp is needed and board layout permits discrete placement of two units |
Compared with MMBZ5245BS-7-F and BZX84-C24-7-F, BZB84-C24,215 uniquely integrates dual 24 V Zeners in one AEC-Q101-qualified SOT23, eliminating inter-device matching variance and reducing PCB area by 33 % in dual-clamp topologies.
Availability
BZB84-C24,215 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and medical power monitoring systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZB84-C24,215 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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZB84 series targets cost-effective, space-constrained voltage regulation and transient protection in automotive and industrial systems, emphasizing AEC-Q101 compliance, tight Zener tolerances, and robust surge handling in miniature packages.
FAQ
What is the maximum continuous DC current this device can handle?
The BZB84-C24,215 has a maximum forward current (IF) of 200 mA per diode, but its practical DC current is limited by thermal constraints. At 25 °C ambient, total power dissipation must stay ≤300 mW - corresponding to ~12.5 mA average Zener current at 24 V, assuming no significant forward conduction.
Can this part replace two separate BZX84-C24 diodes?
Yes, but only in configurations requiring shared anode connection. The BZB84-C24,215 integrates two cathodes (Pins 1 and 2) and one common anode (Pin 3), so it replaces two BZX84-C24 diodes *only* when their anodes are tied together. Independent anode routing requires discrete parts.
Is the 40 W peak power rating applicable to both diodes simultaneously?
No. The 40 W non-repetitive peak reverse power dissipation (PZSM) applies per diode - meaning either Pin 1–3 or Pin 2–3 can absorb up to 40 W individually. Simultaneous conduction on both diodes would require derating based on thermal coupling in the SOT23 package.
Does the marking code 'PE' correspond to BZB84-C24,215?
Yes. Per Table 4 of the datasheet, BZB84-C24 is marked as 'PE' on the device body. The ',215' suffix denotes the specific reel packaging variant (7-inch reel, 3000 pcs), confirmed in Nexperia's ordering information section.
BZB84-C24,215 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):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 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-C24,215 FAQ
1.How can I place an order for BZB84-C24,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C24,215 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-C24,215 reliable?
The price and inventory of BZB84-C24,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C24,215 is usually 5 days.
3.What payment methods are accepted for BZB84-C24,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C24,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C24,215?
BZB84-C24,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C24,215 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-C24,215?
For technical support, including BZB84-C24,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C24,215 requirements.
6.How does Aetrix verify that BZB84-C24,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-C24,215 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-C24,215 meets industry standards.
7.What is the process for return or replacement of BZB84-C24,215?
All BZB84-C24,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C24,215, 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-C24,215 part is unused and in its original packaging.
Return procedure for BZB84-C24,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C24,215 Tags
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