My Inquiry
My Account
Nexperia USA Inc. BZX100A,115
- Part No.:
- BZX100A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX100A,115.pdf
- Description:
- DIODE ZENER 100V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:13,030
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX100A from Nexperia is a single AEC-Q101-qualified Zener diode in SOD323F (SC-90) package, designed for precise 100 V voltage clamping at IZ = 1 mA (VZ = 95–105 V), with 0.5 A non-repetitive peak reverse current and 60 W surge power handling. It serves as overvoltage protection in EL driver circuits and general regulation applications requiring high-voltage stability.
For engineers reviewing the BZX100A datasheet, BZX100A pinout, BZX100A application, or BZX100A equivalent, key selection criteria include its 100 V nominal Zener voltage, AEC-Q101 qualification, SOD323F footprint compatibility, thermal resistance of 125 K/W on FR4 with extended cathode pad, and use in back-to-back configurations for 220 VPP EL lamp protection.
Technical Context
The BZX100A operates as a voltage-reference and transient-suppression device, leveraging silicon PN-junction Zener breakdown at ~100 V. Its differential resistance of ≤700 Ω at 1 mA ensures stable regulation under low-current bias, while its 138 mV/K temperature coefficient enables predictable drift behavior across −65 °C to +150 °C junction range.
Designed for surface-mount reliability in automotive-grade systems, it supports non-repetitive surge events up to 100 µs (square wave) with 60 W peak dissipation. Mounting on FR4 PCB with 1 cm² cathode pad reduces Rth(j-a) to 230 K/W, enabling higher sustained power handling than standard footprint (400 K/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ | 95–105 V at IZ = 1 mA: defines precise clamping threshold for overvoltage protection circuits |
| IZSM | 0.5 A peak (100 µs square wave): supports transient suppression without failure in EL driver surge events |
| PZSM | 60 W non-repetitive peak power: enables robust handling of short-duration voltage spikes |
| Rth(j-a) | 125 K/W (FR4, 1 cm² cathode pad): allows 550 mW continuous dissipation at Tamb ≤25 °C |
| Cd | 70 pF at f = 1 MHz, VR = 0 V: minimizes signal coupling impact in high-frequency EL driver feedback paths |
| SZ | 138 mV/K typical: provides known voltage drift slope for temperature-compensated designs |
| IR | ≤0.2 µA at VR = 76 V: ensures low leakage in standby mode of protected ICs |
Pinout & Package
Package: SOD323F (SC-90), ultra-small flat-lead SMD plastic package (2.7 × 1.6 mm, 0.25 mm height), optimized for space-constrained EL driver PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output or protected node; marking bar identifies this terminal |
| 2 | Anode | Connected to ground or reference potential; reverse-biased operation requires anode at lower potential than cathode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-critical applications including EL lighting control modules |
| Back-to-back configuration support | Enables 220 VPP clamping when paired with identical BZX100A for symmetrical AC overvoltage protection |
| Low thermal resistance mounting option | 125 K/W Rth(j-a) with 1 cm² cathode pad allows 550 mW continuous power at 25 °C ambient |
| Stable Zener voltage tolerance | ±5% (95–105 V) at 1 mA ensures predictable clamping without calibration in production |
Applications
| EL Lamp Overvoltage Protection | Automotive Instrument Cluster Regulation |
|---|---|
Use Scenario: Protects EL foil and driver IC from voltage transients exceeding 220 VPP during ignition or load-dump events. IC Role / Device Role / Timing Role: Voltage-clamping Zener diode placed across EL lamp terminals in back-to-back configuration. Use Value: Prevents permanent damage to sensitive EL driver ICs (e.g., NXP PCA9622) by limiting peak voltage to safe levels. | Use Scenario: Provides stable 100 V reference for backlight regulation in analog gauge clusters with mechanical stepper motors. IC Role / Device Role / Timing Role: Precision Zener reference source for op-amp feedback networks controlling high-side MOSFET gate drive. Use Value: Maintains consistent EL brightness across −40 °C to +85 °C ambient via low-drift 138 mV/K coefficient. |
| Industrial Control Signal Clamping | High-Voltage Sensor Interface Protection |
Use Scenario: Shields 100 V-rated ADC inputs in PLC analog input modules from ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-response transient suppressor connected between sensor line and ground, operating in reverse breakdown. Use Value: Limits voltage excursion to ≤105 V during 1 kV/µs transients, preserving ADC integrity without adding series resistance. | Use Scenario: Protects isolated voltage-sense circuitry in battery management systems monitoring 96 V Li-ion stacks. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary side of isolation transformer feeding precision shunt regulator. Use Value: Ensures downstream error amplifier remains within 105 V absolute maximum rating during cell imbalance surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX85-C100 | DO-41 through-hole package; 100 V nominal, ±5%; Ptot = 1.3 W continuous; no AEC-Q101 qualification | Used in non-automotive industrial power supplies where board space and qualification are not constraints | Select when manual assembly or legacy through-hole design is required; avoid for SMD automotive EL systems |
| PZM100A | SOD-123 package; same 100 V rating; 0.4 A IZSM; 40 W PZSM; AEC-Q101 qualified; higher Cd = 120 pF | Preferred in compact consumer electronics where lower surge rating suffices and larger capacitance is acceptable | Choose for cost-sensitive consumer EL drivers where 40 W surge margin is adequate and SOD-123 footprint fits layout |
Compared with BZX85-C100 and PZM100A, the BZX100A uniquely combines AEC-Q101 qualification, SOD323F miniaturization, and 60 W surge capability-making it optimal for space-limited, high-reliability EL driver protection where both automotive compliance and transient robustness are mandatory.
Availability
BZX100A is available at Aetrix Electronics and suitable for EL lamp driver protection, automotive instrument cluster regulation, and industrial high-voltage signal clamping requiring stable component supply and AEC-Q101 assurance.
Supply support for BZX100A 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 advanced packaging.
The BZX100A belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for high-voltage overvoltage protection in automotive lighting and industrial control systems demanding long-term stability and surge resilience.
FAQ
What is the maximum continuous power dissipation for BZX100A on a standard FR4 PCB?
The BZX100A delivers 310 mW continuous power dissipation when mounted on a standard FR4 PCB (single-sided copper, tin-plated, standard footprint) at ambient temperatures ≤25 °C. This value drops per the derating curve in Figure 1, reaching zero at 150 °C ambient.
Can BZX100A be used in bidirectional overvoltage protection?
Yes - two BZX100A diodes in back-to-back (anode-to-anode) configuration provide symmetrical 220 VPP clamping, as explicitly recommended in Section 8 of the datasheet for EL driver circuits where both positive and negative transients must be limited.
Is the 100 V Zener voltage specified at a fixed test current?
Yes - the working voltage VZ = 95–105 V is guaranteed at IZ = 1 mA, with typical differential resistance of 700 Ω. At higher currents (e.g., 5 mA), VZ rises slightly due to series resistance and temperature effects, as shown in Figure 5.
Does BZX100A require special soldering processes?
Reflow soldering is the only recommended process per Section 12. The SOD323F package has defined thermal profiles; hand soldering or wave soldering is not advised. The footprint in Figure 8 specifies 0.50 mm solder land width and 2.10 mm center-to-center spacing for reliable joint formation.
BZX100A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 100 V
- Tolerance:
- ±5%
- Power - Max:
- 310 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 200 nA @ 76 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
BZX100A,115 FAQ
1.How can I place an order for BZX100A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX100A,115 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 BZX100A,115 reliable?
The price and inventory of BZX100A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX100A,115 is usually 5 days.
3.What payment methods are accepted for BZX100A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX100A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX100A,115?
BZX100A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX100A,115 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 BZX100A,115?
For technical support, including BZX100A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX100A,115 requirements.
6.How does Aetrix verify that BZX100A,115 is sourced from the original manufacturer or authorized distributors?
All BZX100A,115 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 BZX100A,115 meets industry standards.
7.What is the process for return or replacement of BZX100A,115?
All BZX100A,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX100A,115, 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 BZX100A,115 part is unused and in its original packaging.
Return procedure for BZX100A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX100A,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
