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Nexperia USA Inc. BAV21,113
- Part No.:
- BAV21,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BAV21,113.pdf
- Description:
- DIODE GEN PURP 200V 250MA ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:8,650
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Product details
Overview
BAV21,113 from NXP Semiconductors is a hermetically sealed glass axial-leaded switching diode in SOD27 (DO-35) package, rated for 250 V repetitive peak reverse voltage, 200 V continuous reverse voltage, and 625 mA repetitive peak forward current. It delivers 50 ns reverse recovery time and 5 pF junction capacitance at 1 MHz, enabling use in video output stages of color TV and digital voltmeters.
For engineers reviewing the BAV21,113 datasheet, BAV21,113 pinout, BAV21,113 application, or BAV21,113 equivalent, key selection criteria include reverse voltage margin, switching speed under 30 mA step-load conditions, thermal resistance (240 K/W junction-to-tie-point), and cathode-marked axial lead configuration for PCB-level polarity verification.
Technical Context
The BAV21,113 is a planar-processed silicon switching diode optimized for general-purpose high-speed rectification and signal clamping. Its 50 ns trr is measured under standardized IF/IR = 30 mA switching with 100 Ω load and IR = 3 mA detection threshold, per Fig.8 test circuit.
Thermal performance is defined with 10 mm lead length on FR4 PCB (Rth j-a = 375 K/W); junction temperature is rated to 175 °C, and storage range spans −65 °C to +175 °C. Reverse leakage remains ≤100 nA at VRmax and 25 °C, rising to ≤100 μA at 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 250 V - maximum non-repetitive reverse voltage the diode withstands without avalanche breakdown |
| VR | 200 V - maximum continuous DC reverse bias applied across cathode-anode without degradation |
| IFRM | 625 mA - peak pulsed forward current sustainable in repetitive 50% duty cycle operation |
| trr | 50 ns - time required for minority carrier recombination after reverse bias application, critical for <10 MHz switching |
| Cd | 5 pF - junction capacitance at 0 V reverse bias and 1 MHz, limiting high-frequency impedance roll-off |
| VF @ 100 mA | 1.0 V - forward voltage drop defining conduction loss and self-heating at typical signal-level current |
| Rth j-tp | 240 K/W - thermal resistance from junction to tie-point, used to calculate localized heating under pulse loads |
Pinout & Package
BAV21,113 uses a hermetically sealed axial-leaded SOD27 (DO-35) glass package with 2 terminals. The cathode is marked by a distinct band on the glass body; leads are tinned copper alloy, 10 mm nominal length, suitable for through-hole mounting on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node during conduction; unmarked lead in DO-35 orientation |
| Cathode | Forward current exit / reverse blocking terminal | Marked by colored band; connected to higher-potential node; sustains 250 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass encapsulation | Prevents moisture ingress and long-term parameter drift in industrial ambient conditions (−65 to +175 °C) |
| 50 ns reverse recovery | Enables clean edge transitions in video sync clamping and TTL-level signal routing without overshoot |
| 250 V VRRM rating | Provides 25% headroom above 200 V line-derived rails in CRT deflection and power supply snubbers |
| 5 pF junction capacitance | Minimizes loading on 1–10 MHz signal paths in oscilloscope front-end and RF detector stages |
Applications
| Oscilloscope Vertical Amplifier Clamping | Digital Voltmeter Input Protection |
|---|---|
Use Scenario: Clamps baseline of fast-rising analog input signals to fixed DC reference before amplification. IC Role / Device Role / Timing Role: Signal-level DC restorer using fast turn-off to avoid droop during sweep retrace. Use Value: 50 ns trr ensures minimal baseline shift (<0.5%) at 10 kHz sweep rates; 5 pF Cd avoids high-frequency attenuation. | Use Scenario: Protects high-impedance ADC input from ESD and overvoltage transients during probe contact. IC Role / Device Role / Timing Role: Bidirectional shunt clamp activated only above ±200 V, leveraging low leakage (<100 nA). Use Value: 200 V VR rating safely isolates 1000 V-rated input ranges; hermetic seal prevents humidity-induced leakage drift. |
| Color TV Video Output Stage | Industrial PLC Digital Input Conditioning |
Use Scenario: AC-coupled RGB signal path where DC restoration occurs between driver and CRT grid. IC Role / Device Role / Timing Role: High-speed coupling diode in series with video amplifier output, blocking negative swing. Use Value: 250 V VRRM accommodates flyback-induced spikes up to 220 V; 625 mA IFRM handles burst-current peaks in blanking intervals. | Use Scenario: Level translation and transient suppression for 24 VDC digital inputs exposed to relay coil kickback. IC Role / Device Role / Timing Role: Reverse-biased snubber across optocoupler input, clamping inductive spikes within 50 ns. Use Value: 240 K/W Rth j-tp enables reliable 1 A surge dissipation when mounted directly to PCB copper pour; axial leads simplify automated insertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV20,113 | VRRM = 200 V (vs. 250 V); VR = 150 V (vs. 200 V); identical trr, Cd, package | Not suitable for 200+ V flyback or snubber circuits requiring >200 V margin | Select BAV20,113 only where reverse stress stays below 150 V DC or 200 V peak |
| 1N4148W | VRRM = 100 V; trr = 4 ns; SOD-123 surface-mount package; 4 pF Cd | Higher speed but lower voltage rating; unsuitable for CRT or industrial 200 V rail conditioning | Choose 1N4148W for <100 V, >1 MHz logic-level switching; avoid in high-voltage analog signal paths |
Compared with BAV20,113 and 1N4148W, BAV21,113 uniquely balances 250 V robustness with 50 ns switching-critical for legacy video and industrial equipment where voltage margin outweighs nanosecond-scale speed gains.
Availability
BAV21,113 is available at Aetrix Electronics and suitable for oscilloscope manufacturing, color television service replacement, and industrial digital multimeter production requiring stable component supply and long-lifecycle support.
Supply support for BAV21,113 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
BAV21,113 belongs to NXP's legacy discrete diode product line, designed specifically for high-reliability analog signal conditioning in measurement and broadcast equipment where hermetic sealing and voltage margin are prioritized over ultra-high speed.
FAQ
What is the cathode identification method for BAV21,113?
The cathode is identified by a visible colored band on the glass body of the SOD27 (DO-35) package. This band aligns with the cathode lead, which must be connected to the more positive potential in forward-bias operation. The marking is laser-etched and remains legible after wave soldering at standard profiles.
Can BAV21,113 replace BAV20,113 in existing designs?
Yes, BAV21,113 is a direct form-fit-function upgrade for BAV20,113 with identical package, pinout, and thermal characteristics-but offers higher 250 V VRRM and 200 V VR. No layout or firmware changes are needed; it improves margin in 200 V applications without altering timing or leakage behavior.
What is the maximum allowable ambient temperature at full 250 mA continuous forward current?
Per Fig.2, the maximum ambient temperature at 250 mA continuous forward current is 125 °C when mounted on FR4 with 10 mm leads. Derating begins linearly above 25 °C ambient; at 70 °C ambient, max IF drops to ~180 mA to maintain Tj ≤ 175 °C.
Is BAV21,113 suitable for high-frequency RF detector applications?
Yes-its 5 pF junction capacitance and 50 ns trr support RF detection up to 50 MHz in AM demodulator and signal-strength indicator circuits. However, its 1.0 V VF at 100 mA limits sensitivity below 100 mV input; pairing with a low-VF Schottky is recommended for sub-50 mV signals.
BAV21,113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
- Operating Temperature - Junction:
- 175°C (Max)
BAV21,113 FAQ
1.How can I place an order for BAV21,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV21,113 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 BAV21,113 reliable?
The price and inventory of BAV21,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV21,113 is usually 5 days.
3.What payment methods are accepted for BAV21,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV21,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV21,113?
BAV21,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV21,113 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 BAV21,113?
For technical support, including BAV21,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV21,113 requirements.
6.How does Aetrix verify that BAV21,113 is sourced from the original manufacturer or authorized distributors?
All BAV21,113 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 BAV21,113 meets industry standards.
7.What is the process for return or replacement of BAV21,113?
All BAV21,113 units undergo pre-shipment inspection (PSI). If there is an issue with BAV21,113, 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 BAV21,113 part is unused and in its original packaging.
Return procedure for BAV21,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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