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Nexperia USA Inc. BAL74,215
- Part No.:
- BAL74,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAL74,215.pdf
- Description:
- DIODE GEN PURP 50V 215MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:11,007
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Product details
Overview
BAL74 from Nexperia is a high-speed planar silicon switching diode in SOT23 package, featuring 4 ns reverse recovery time, 50 V repetitive peak reverse voltage, and 500 mA repetitive peak forward current. It serves as a fast-switching element in surface-mounted logic and signal routing circuits, especially in compact DC-DC converter snubbers and high-frequency clamp applications.
For engineers reviewing the BAL74 datasheet, BAL74 pinout, BAL74 application, or BAL74 equivalent, key selection criteria include verified trr ≤ 4 ns at IF/IR = 10 mA, VF ≤ 855 mV at 10 mA, Cd = 2 pF at 0 V, IR ≤ 0.1 µA at 50 V, and thermal resistance Rth(j-a) = 500 K/W on FR4 PCB - all critical for low-loss, high-frequency switching integrity.
Technical Context
The BAL74 employs planar epitaxial construction to achieve rapid carrier recombination, enabling sub-4 ns reverse recovery under standardized IF = IR = 10 mA, RL = 100 Ω test conditions. Its junction capacitance remains stable at 2 pF (f = 1 MHz, VR = 0 V), supporting clean edge fidelity in >100 MHz digital signal paths.
Designed for surface-mount reliability, it operates with Tj up to 150 °C and withstands non-repetitive surge currents up to 4 A (tp = 1 µs). The n.c. Pin 1 isolates internal die structure, allowing flexible PCB layout without unintended parasitic coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - supports rail-to-rail clamping in 3.3 V–48 V logic and power interfaces without breakdown. |
| trr | 4 ns - enables clean switching in >100 MHz clock distribution and pulse shaping networks. |
| Cd | 2 pF at 0 V - minimizes capacitive loading on high-impedance signal nodes and RF bias lines. |
| IFRM | 500 mA - sustains transient current surges in gate-drive snubber and flyback catch diode roles. |
| VF @ 10 mA | 855 mV - ensures low conduction loss in low-voltage logic-level clamping and level-shifting circuits. |
| IR @ 50 V | 0.1 µA - guarantees minimal leakage-induced offset drift in precision sample-hold and analog switch paths. |
Pinout & Package
Encapsulated in the standard SOT23 (TO-236AB) plastic surface-mount package, the BAL74 measures 2.9 × 1.3 × 1.0 mm with gull-wing leads and JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Not connected | Internally isolated; no electrical function - allows layout flexibility and avoids unintended parasitic coupling. |
| 2 | Anode | Forward current entry point; must be biased positive relative to Pin 3 for conduction. |
| 3 | Cathode | Forward current exit and reverse voltage reference node; connects to circuit ground or lower-potential rail. |
Key Features
| Feature | Design Value |
|---|---|
| High-speed switching | trr ≤ 4 ns ensures minimal switching distortion in >100 MHz digital and RF signal paths. |
| Low junction capacitance | Cd = 2 pF at 0 V reduces signal attenuation and phase shift in high-impedance AC-coupled stages. |
| Thermal robustness | Rth(j-a) = 500 K/W on FR4 enables sustained operation at 150 °C junction temperature in confined layouts. |
| Small-outline packaging | SOT23 footprint saves >60% board area vs. DO-35, supporting miniaturized portable and IoT designs. |
Applications
| Logic-Level Clamping | Gate-Drive Snubber |
|---|---|
Use Scenario: Protecting CMOS input pins from overshoot during hot-plug or ESD events in USB and I²C interfaces. IC Role / Device Role / Timing Role: Fast clamping diode shunting transient energy to VCC or GND before logic threshold violation. Use Value: 4 ns trr and 0.1 µA IR prevent false triggering and ensure signal integrity across 0–20 MHz data rates. | Use Scenario: Suppressing voltage spikes across MOSFET gates during high-dI/dt switching in half-bridge motor drivers. IC Role / Device Role / Timing Role: Low-capacitance snubber absorbing gate charge displacement current without slowing turn-on. Use Value: 2 pF Cd and 855 mV VF minimize gate-loop resonance and reduce Miller-effect delay in 10–100 kHz PWM systems. |
| RF Bias Injection | High-Frequency Sample-and-Hold |
Use Scenario: Injecting DC bias into 50 Ω RF signal paths while blocking RF from DC supply rails in LNA front-ends. IC Role / Device Role / Timing Role: Series-blocking diode leveraging low Cd and high VRRM to isolate RF and DC domains. Use Value: 2 pF capacitance and 50 V reverse rating maintain >20 dB isolation up to 1 GHz with <0.1 dB insertion loss. | Use Scenario: Holding analog voltage samples during ADC conversion cycles in precision data acquisition systems. IC Role / Device Role / Timing Role: Ultra-low-leakage hold switch minimizing droop between sampling instants. Use Value: 0.1 µA IR at 50 V ensures <1 LSB droop over 10 µs hold time in 12-bit 3.3 V systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54S,215 | Dual common-anode configuration; trr = 5 ns; Cd = 10 pF; VF = 320 mV @ 10 mA. | Optimized for low-VF dual-path clamping; higher capacitance limits >50 MHz use. | Select when dual-diode topology or lower forward drop outweighs speed and capacitance requirements. |
| 1N4148W,115 | Single diode in SOD-123; trr = 4 ns; Cd = 4 pF; VF = 1 V @ 10 mA; IR = 25 nA @ 20 V. | Higher VF and larger package reduce density and efficiency in space-constrained, low-voltage apps. | Choose when legacy footprint compatibility or ultra-low IR at low VR is prioritized over size and Cd. |
Compared with BAT54S,215 and 1N4148W,115, the BAL74 uniquely balances 4 ns trr, 2 pF Cd, and SOT23 footprint - making it optimal for high-density, >100 MHz signal routing where both speed and parasitic minimization are critical.
Availability
BAL74 is available at Aetrix Electronics and suitable for high-frequency signal routing, logic-level clamping, and gate-drive snubbing requiring stable component supply across automotive infotainment, industrial PLC I/O modules, and portable medical sensor interfaces.
Supply support for BAL74 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BAL74 belongs to Nexperia's high-speed diode product line, engineered specifically for compact, high-frequency switching applications where fast recovery, low capacitance, and SMT reliability are mandatory.
FAQ
Is BAL74 suitable for 5 V logic-level clamping in USB 2.0 data lines?
Yes. With VRRM = 50 V and trr = 4 ns, the BAL74 safely clamps ESD transients on D+ and D− lines without distorting 480 Mbps signaling. Its 2 pF capacitance introduces negligible jitter, and 0.1 µA IR prevents DC offset accumulation during idle states.
What is the maximum continuous forward current at 85 °C ambient?
Per Fig.2 in the datasheet, the BAL74 supports 150 mA continuous forward current at Tamb = 85 °C on FR4 PCB (Tj limited to 150 °C). Derating is linear from 215 mA at 25 °C, reflecting its Rth(j-a) = 500 K/W thermal design.
Can Pin 1 be left unconnected or must it be grounded?
Pin 1 is internally not connected and must remain unconnected per datasheet specification. Grounding or routing it may introduce unintended parasitic coupling or solder bridging risk; the SOT23 footprint assumes Pin 1 as a mechanical dummy lead.
How does BAL74 compare to BAS16 in terms of switching performance?
The BAL74 offers faster trr (4 ns vs. 6 ns for BAS16), lower Cd (2 pF vs. 2.5 pF), and tighter IR control (0.1 µA vs. 0.5 µA at 50 V), making it superior for >100 MHz signal integrity. BAS16 remains viable for general-purpose 10–50 MHz switching where cost is primary.
BAL74,215 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
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 215mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 50 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
- Operating Temperature - Junction:
- 150°C (Max)
BAL74,215 FAQ
1.How can I place an order for BAL74,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAL74,215 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 BAL74,215 reliable?
The price and inventory of BAL74,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAL74,215 is usually 5 days.
3.What payment methods are accepted for BAL74,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAL74,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAL74,215?
BAL74,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAL74,215 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 BAL74,215?
For technical support, including BAL74,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAL74,215 requirements.
6.How does Aetrix verify that BAL74,215 is sourced from the original manufacturer or authorized distributors?
All BAL74,215 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 BAL74,215 meets industry standards.
7.What is the process for return or replacement of BAL74,215?
All BAL74,215 units undergo pre-shipment inspection (PSI). If there is an issue with BAL74,215, 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 BAL74,215 part is unused and in its original packaging.
Return procedure for BAL74,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAL74,215 Tags
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