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Nexperia USA Inc. BZX84-A22,215
- Part No.:
- BZX84-A22,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-A22,215.pdf
- Description:
- DIODE ZENER 22V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,237
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Product details
Overview
BZX84-A22,215 from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 22 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and 150 °C maximum junction temperature - used for precision low-power voltage reference and overvoltage protection in sensor signal conditioning circuits.
For engineers reviewing the BZX84-A22,215 datasheet, BZX84-A22,215 pinout, BZX84-A22,215 application, or BZX84-A22,215 equivalent, key selection criteria include Zener voltage tolerance (±1 %), differential resistance (250 Ω max), reverse current at 17.6 V (≤0.1 μA), thermal resistance (500 K/W), and non-repetitive peak reverse power capability (40 W).
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals when reverse-biased above its specified Zener voltage. It exhibits a positive temperature coefficient of +15.4 mV/K at IZ = 5 mA, enabling predictable drift compensation in temperature-sensitive references.
Its 250 Ω maximum differential resistance at 5 mA ensures minimal dynamic impedance under regulation, while the 0.9 V forward voltage at 10 mA supports reliable anode-cathode polarity verification during board-level testing and functional validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 21.78 V to 22.22 V at IZ = 5 mA - defines precise regulation threshold with ±1 % tolerance |
| Differential Resistance (rdif) | ≤250 Ω at IZ = 5 mA - ensures low dynamic impedance for stable voltage reference under load variation |
| Reverse Current (IR) | ≤0.1 μA at VR = 17.6 V - guarantees minimal leakage below regulation knee, critical for low-power standby circuits |
| Temperature Coefficient (SZ) | +15.4 mV/K at IZ = 5 mA - enables accurate thermal drift modeling in precision analog designs |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power handling in standard SMT layout |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 μs - supports transient overvoltage clamping without failure |
| Junction Temperature (Tj) | −55 °C to +150 °C - validates operation across industrial ambient ranges |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact footprint (2.9 mm × 1.3 mm × 1.0 mm), standard reflow-compatible solder pads per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-bias terminal; connects to lower-potential node in shunt regulation configuration |
| 2 | Not Connected (n.c.) | Internally unconnected lead; must remain floating - no PCB trace or thermal pad connection |
| 3 | Cathode (K) | Regulated output node; ties to supply rail being stabilized or clamped |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables high-accuracy voltage references without post-production trimming in 22 V systems |
| 250 mW power rating | Supports continuous regulation in space-constrained consumer and industrial PCBs with minimal heatsinking |
| 250 Ω max differential resistance | Maintains <1 % output deviation across 1–10 mA load current changes in feedback loops |
| +15.4 mV/K temperature coefficient | Allows predictable offset correction in temperature-compensated reference designs using matched components |
| 40 W non-repetitive surge capability | Clamps ESD transients (IEC 61000-4-2 Level 4) and inductive kickback without degradation |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reset Circuit |
|---|---|
Use Scenario: Stabilizing bias voltage for bridge-based pressure sensors operating from 24 V rails. IC Role / Device Role / Timing Role: Shunt voltage reference providing 22 V reference to op-amp instrumentation amplifier stage. Use Value: ±1 % VZ tolerance ensures <±0.22 V reference error, directly limiting sensor full-scale accuracy drift. | Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCU powered from 24 V supply via LDO. IC Role / Device Role / Timing Role: Zener-clamped voltage divider feeding RC network to microcontroller's nRESET pin. Use Value: 250 Ω rdif minimizes threshold hysteresis during brown-out detection, improving reset reliability. |
| USB-C Power Delivery Protection | Automotive Body Control Module (BCM) Reference |
Use Scenario: Clamping transient surges on 20 V auxiliary power line in USB-C PD sink adapter. IC Role / Device Role / Timing Role: Primary overvoltage clamp protecting downstream DC-DC converter input stage. Use Value: 40 W PZSM withstands 100 μs 100 V spikes per IEC 61000-4-5, preventing converter latch-up. | Use Scenario: Providing stable 22 V reference for LIN bus transceiver biasing in 24 V vehicle battery system. IC Role / Device Role / Timing Role: Precision shunt regulator supplying reference to transceiver's internal voltage monitor. Use Value: +15.4 mV/K SZ allows linear compensation against engine bay temperature swings (−40 °C to +125 °C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5247BS-7-F | 22 V ±5 % tolerance; 200 mW rating; SOT-23 package | Looser tolerance increases reference uncertainty; lower Ptot limits sustained current handling | Select only where cost sensitivity outweighs regulation accuracy requirements |
| Vishay BZX84-C22-TP | 22 V ±5 % tolerance; 300 mW rating; same SOT-23 footprint | Higher power rating improves surge margin but wider tolerance degrades precision | Prefer for robustness-critical clamping; avoid in metrology-grade references |
Compared with BZX84-A22,215, MMBZ5247BS-7-F trades ±1 % accuracy for lower cost and reduced thermal margin, while BZX84-C22-TP sacrifices tolerance control for higher surge resilience - making the A22 variant optimal for applications demanding both precision and industrial-grade reliability.
Availability
BZX84-A22,215 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller reset circuits, USB-C power delivery protection, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for BZX84-A22,215 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in high-volume electronics.
The BZX84 series belongs to Nexperia's precision Zener regulator product line, engineered specifically for low-power voltage reference and overvoltage protection in space-constrained industrial and consumer applications.
FAQ
What is the maximum continuous reverse current this diode can handle at 22 V?
The BZX84-A22,215 is not rated for continuous reverse conduction at its Zener voltage. Its absolute maximum reverse current is defined by power dissipation: at 22 V, continuous current must be limited to ≤11.4 mA to stay within the 250 mW Ptot limit at Tamb = 25 °C. Derating is required above 25 °C per the 500 K/W thermal resistance.
Can this part replace a BZX84-B22 or BZX84-C22 in an existing design?
Yes, but with functional trade-offs: BZX84-A22,215 offers tighter ±1 % tolerance versus ±2 % (B-series) or ±5 % (C-series), improving reference accuracy. However, all share identical SOT23 package, pinout, and thermal characteristics - so mechanical and layout compatibility is guaranteed without redesign.
Is the "n.c." pin electrically isolated or internally tied to substrate?
Pin 2 is unconnected - physically and electrically isolated from the die and package internals. It serves no electrical function and must remain unconnected on the PCB. No thermal or grounding function is assigned; routing traces or solder mask openings to it provides no benefit and may risk solder bridging.
Does this Zener diode meet AEC-Q200 for automotive use?
No. The BZX84-A22,215 is not AEC-Q200 qualified. Nexperia explicitly states in Revision 7 that the BZX84_SER series is non-automotive qualified. For automotive applications, designers must select the dedicated -Q qualified variants (e.g., BZX84-Q series), which undergo extended temperature cycling, vibration, and humidity testing per AEC standards.
BZX84-A22,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±1%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 700 mV
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-A22,215 FAQ
1.How can I place an order for BZX84-A22,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-A22,215 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 BZX84-A22,215 reliable?
The price and inventory of BZX84-A22,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-A22,215 is usually 5 days.
3.What payment methods are accepted for BZX84-A22,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-A22,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-A22,215?
BZX84-A22,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-A22,215 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 BZX84-A22,215?
For technical support, including BZX84-A22,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-A22,215 requirements.
6.How does Aetrix verify that BZX84-A22,215 is sourced from the original manufacturer or authorized distributors?
All BZX84-A22,215 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 BZX84-A22,215 meets industry standards.
7.What is the process for return or replacement of BZX84-A22,215?
All BZX84-A22,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-A22,215, 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 BZX84-A22,215 part is unused and in its original packaging.
Return procedure for BZX84-A22,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-A22,215 Tags
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