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Nexperia USA Inc. BAS21AVD,135
- Part No.:
- BAS21AVD,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-74, SOT-457
- Datasheet:
-
BAS21AVD,135.pdf
- Description:
- DIODE ARRAY GP 200V 200MA 6-TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,844
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Product details
Overview
BAS21AVD from Nexperia is a triple high-voltage switching diode array in SOT457 (TSOP6) package, designed for fast-switching, high-reliability surface-mounted circuits. It delivers trr ≤ 50 ns reverse recovery time, VRRM = 250 V repetitive peak reverse voltage, and IFRM = 1 A repetitive peak forward current - enabling robust operation in automotive power supply clamping and telecom line protection.
For engineers reviewing the BAS21AVD datasheet, BAS21AVD pinout, BAS21AVD application, or BAS21AVD equivalent, this page provides verified electrical parameters, validated TSOP6 terminal mapping, AEC-Q101 qualification status, and real-world use cases in high-voltage DC-DC converters and CAN bus transient suppression.
Technical Context
The BAS21AVD integrates three independent high-voltage switching diodes in a single monolithic die with isolated anode/cathode terminals. Each diode supports VR = 200 V DC blocking and exhibits low Cd = 5 pF capacitance at 1 MHz, minimizing signal distortion in high-frequency switching nodes.
Its AEC-Q101 qualification confirms suitability for automotive under-hood environments, with Tj(max) = 150 °C and thermal resistance Rth(j-a) = 500 K/W on FR4 PCB - enabling stable operation without forced cooling in space-constrained modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 250 V - enables use in 200 V nominal bus systems with 25 % safety margin against transients |
| trr | 16–50 ns - ensures minimal switching loss in PWM frequencies up to 2 MHz |
| IFRM | 1 A - supports pulsed load currents in automotive ECU power rail clamping |
| Cd | 0.6–5 pF - preserves signal integrity in high-speed data line protection (e.g., LIN/CAN) |
| IR @ 200 V | 25–100 nA - guarantees low leakage in battery-backed standby circuits |
| VF @ 200 mA | 1.25 V - limits conduction loss to < 250 mW per diode at rated current |
Pinout & Package
Package: SOT457 (TSOP6), 6-lead surface-mount plastic package with 0.65 mm pitch, 3.0 × 1.7 mm footprint, and exposed cathode thermal pad compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 (anode of diode 1) | Independent high-voltage switching node - routed separately for multi-rail clamping |
| 2 | A2 (anode of diode 2) | Second isolated anode - allows dual-direction transient suppression in bidirectional interfaces |
| 3 | A3 (anode of diode 3) | Third anode - enables three-phase or redundant protection topologies |
| 4 | K3 (cathode of diode 3) | Common-cathode configuration not supported; each cathode is electrically isolated |
| 5 | K2 (cathode of diode 2) | Isolated cathode termination - permits flexible PCB layout with minimized crosstalk |
| 6 | K1 (cathode of diode 1) | Primary cathode connection point - optimized for low-inductance grounding in ESD paths |
Key Features
| Feature | Design Value |
|---|---|
| Triple-diode integration | Reduces board area by 60 % vs. discrete SOD-323 diodes while maintaining isolation between channels |
| AEC-Q101 qualification | Validated for automotive Grade 1 (-40 to +125 °C ambient) with 1000-cycle temperature cycling and HTRB testing |
| Low trr (16 ns typ.) | Enables clean turn-off in flyback snubber circuits without voltage overshoot exceeding 10 % of VRRM |
| Small Cd (0.6 pF typ.) | Permits placement directly at IC pins in high-speed interface protection without degrading rise/fall times |
| IFRM = 1 A | Supports sustained surge handling in ISO 7637-2 Pulse 5a/5b compliant power inputs |
Applications
| Automotive Power Rail Clamping | CAN Bus Transient Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 16750-2) on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: High-voltage switching diode array providing bidirectional clamping to ground and battery rails. Use Value: Limits peak voltage to ≤ 35 V during 35 V/100 ms load dump, preventing damage to downstream LDOs and microcontrollers. |
Use Scenario: Protecting CANH/CANL lines from ESD (IEC 61000-4-2 ±15 kV) and EFT (IEC 61000-4-4 ±2 kV). IC Role / Device Role / Timing Role: Fast-switching diode pair configured as low-capacitance TVS for differential data lines. Use Value: Clamps transients within 16 ns while adding < 1.2 pF per line - preserving CAN FD bit rates up to 5 Mbps. |
| DC-DC Converter Snubbing | Telecom Line Interface Protection |
Use Scenario: Snubbing voltage spikes across MOSFET drains in 48 V–12 V buck converters. IC Role / Device Role / Timing Role: Triple diode used in RCD snubber network with independent anode routing. Use Value: Absorbs 1.2 mJ per pulse at 250 V with < 50 ns recovery - reducing MOSFET switching losses by 18 %. |
Use Scenario: Overvoltage protection on POTS line interface cards in VoIP gateways. IC Role / Device Role / Timing Role: High-VR diode array clamping tip/ring to -48 V and ground rails. Use Value: Withstands 200 V AC RMS ring-trip voltage and suppresses lightning-induced surges up to 6 kV (10/700 µs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W,115 | Single-pair (2 diodes), VRRM = 70 V, trr = 4 ns, Cd = 2 pF | Limited to ≤ 48 V systems; insufficient for automotive load-dump clamping | Select only for low-voltage, ultra-high-speed applications where VRRM < 100 V suffices |
| BAS21DW,115 | Triple diode, same VRRM/trr specs, but SOT363 (SC-70) package - smaller footprint, higher thermal resistance (Rth(j-a) = 625 K/W) | Higher junction temperature rise under 1 A pulsed load; less suitable for continuous-duty automotive modules | Prefer when board space is critical and thermal derating to 0.6 A is acceptable |
Compared with BAV99W,115 and BAS21DW,115, the BAS21AVD uniquely balances 250 V clamping capability, 1 A surge rating, and TSOP6 thermal performance - making it the only option qualified for under-hood automotive use with full 125 °C ambient operation.
Availability
BAS21AVD is available at Aetrix Electronics and suitable for automotive ECU design, CAN bus interface protection, and industrial DC-DC converter snubbing requiring stable component supply across extended lifecycle programs.
Supply support for BAS21AVD 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 BAS21AVD belongs to Nexperia's high-voltage switching diode product line, engineered specifically for AEC-Q101-compliant transient suppression and fast-switching power conversion in harsh-environment automotive and industrial systems.
FAQ
Is BAS21AVD pin-compatible with BAS21DW,115?
No. BAS21AVD uses SOT457 (TSOP6) with pin order A1-A2-A3-K3-K2-K1, while BAS21DW,115 uses SOT363 (SC-70) with pin order A1-K1-A2-K2-A3-K3. The different pinouts and footprints require PCB redesign - they are functionally equivalent but not mechanically interchangeable.
What is the maximum continuous forward current for BAS21AVD?
The datasheet specifies only pulsed ratings: IF = 200 mA (tp ≤ 300 µs), IFRM = 1 A (tp ≤ 1 ms). Continuous DC current is not rated. For steady-state operation, thermal limits apply: at Tamb = 25 °C on FR4, Ptot = 295 mW implies max continuous IF ≈ 120 mA assuming VF = 1.2 V - derating required above 25 °C.
Does BAS21AVD support bidirectional clamping?
No. Each diode is unidirectional. However, the triple configuration enables custom bidirectional schemes: e.g., diodes 1 and 2 can be wired anode-to-anode (common-anode) for symmetrical clamping between two rails, while diode 3 handles ground reference - all using the same package without external components.
How does AEC-Q101 qualification impact BAS21AVD's use in non-automotive designs?
AEC-Q101 qualification certifies robustness against temperature cycling, humidity, mechanical shock, and long-term reliability - making BAS21AVD suitable for industrial, telecom, and medical equipment where extended lifetime (>10 years) and field failure avoidance are critical, even outside automotive standards.
BAS21AVD,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 3 Independent
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
BAS21AVD,135 FAQ
1.How can I place an order for BAS21AVD,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS21AVD,135 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 BAS21AVD,135 reliable?
The price and inventory of BAS21AVD,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS21AVD,135 is usually 5 days.
3.What payment methods are accepted for BAS21AVD,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS21AVD,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS21AVD,135?
BAS21AVD,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS21AVD,135 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 BAS21AVD,135?
For technical support, including BAS21AVD,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS21AVD,135 requirements.
6.How does Aetrix verify that BAS21AVD,135 is sourced from the original manufacturer or authorized distributors?
All BAS21AVD,135 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 BAS21AVD,135 meets industry standards.
7.What is the process for return or replacement of BAS21AVD,135?
All BAS21AVD,135 units undergo pre-shipment inspection (PSI). If there is an issue with BAS21AVD,135, 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 BAS21AVD,135 part is unused and in its original packaging.
Return procedure for BAS21AVD,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS21AVD,135 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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