My Inquiry
My Account
Diodes Incorporated SMBJ30CAQ-13-F
- Part No.:
- SMBJ30CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ30CAQ-13-F.pdf
- Description:
- TVS DIODE 30VWM 48.4VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,689
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ30CAQ-13-F from Diodes Incorporated is a bi-directional 600W automotive transient voltage suppressor (TVS) diode in SMB package, with 30V reverse standoff voltage (VRWM), 48.4V max clamping voltage (VC) at 12.4A peak pulse current (IPP), and AEC-Q101 qualification for under-hood power line protection against ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD surges.
For engineers reviewing the SMBJ30CAQ-13-F datasheet, SMBJ30CAQ-13-F pinout, SMBJ30CAQ-13-F application, or SMBJ30CAQ-13-F equivalent, key selection criteria include clamping performance under 10×1000μs surge, bi-directional symmetry for AC-coupled lines, IATF 16949 manufacturing traceability, and RoHS/halogen-free compliance for automotive Tier-1 supply chains.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, delivering 48.4V clamping at 12.4A IPP per the 10×1000μs waveform, with <0.5μA reverse leakage at 30V VRWM and 33.3–36.8V breakdown range (VBR) at 1mA test current. Its thermal design supports continuous operation from –55°C to +175°C junction temperature.
The device uses silicon avalanche junction technology optimized for fast response (<1ns), low dynamic impedance, and stable clamping over temperature - critical for protecting CAN FD transceivers, LIN bus nodes, and 12V/24V power rails exposed to load dump and inductive switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000μs transients without degradation in automotive environments. |
| Reverse Standoff Voltage | 30V - defines maximum continuous DC or RMS operating voltage before significant leakage. |
| Clamping Voltage | 48.4V @ 12.4A - limits downstream IC voltage during surge, enabling robust protection of 36V-rated components. |
| Breakdown Voltage | 33.3–36.8V @ 1mA - ensures reliable avalanche initiation with tight VBR tolerance for predictable turn-on. |
| Leakage Current | <0.5μA @ 30V - minimizes standby power loss in always-on vehicle modules (e.g., body control units). |
| Operating Temperature | –55°C to +175°C - qualified for engine bay, transmission, and ADAS sensor locations per AEC-Q101 stress tests. |
| Package | SMB - surface-mount footprint compatible with automated assembly; 3.3–3.94mm width enables high-density PCB layout. |
Pinout & Package
Bi-directional SMBJ devices have no polarity marking; both terminals are functionally identical. The SMB package features two gull-wing leads, with cathode band omitted per datasheet Note 13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bi-directional surge path | Both terminals conduct identically during positive or negative transients - no orientation required during placement. |
| Case | Thermal interface | Molded plastic body rated UL 94V-0; thermal resistance θJA ≈ 100°C/W enables 5W steady-state dissipation at TL = +75°C. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP documentation support and IATF 16949 certified manufacturing. |
| ISO7637-2 Pulse 3b immunity | Withstands +150V, 100ns rise time transients on 12V systems without parametric shift or failure. |
| ISO10605 ESD rating | 30kV air/contact discharge capability ensures reliability in assembly, service, and field handling environments. |
| Halogen & antimony free | Meets "Green" definition: Br+Cl <1500ppm, Sb <1000ppm - compliant with EU ELV and OEM material declarations. |
| Moisture sensitivity | Level 1 per J-STD-020 - zero bake requirement prior to reflow, reducing production overhead. |
Applications
| Automotive Body Control Module (BCM) | Infotainment Power Supply Input |
|---|---|
|
Use Scenario: Protects 12V input rail of BCM against load dump (ISO7637-2 Pulse 5a) and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Bi-directional TVS placed upstream of DC-DC converter input to clamp both positive and negative transients. Use Value: 48.4V clamping ensures downstream 40V-input buck controllers remain within absolute maximum ratings during 120V surges. |
Use Scenario: Shields USB-C PD and HDMI power domains in head unit from ESD events during connector mating/unmating. IC Role / Device Role / Timing Role: Low-capacitance bi-directional suppressor installed at board edge, adjacent to connectors. Use Value: Sub-1nS response time limits voltage overshoot to <55V during 30kV contact discharge, preventing PHY latch-up. |
| ADAS Camera Power Line | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: Safeguards 5V/3.3V camera sensor rails from coupled noise during ignition and HVAC compressor switching. IC Role / Device Role / Timing Role: Secondary-level TVS after primary bulk suppression, targeting fast-rising transients missed by bulk capacitors. Use Value: Tight VBR tolerance (±5.5%) ensures consistent clamping onset across temperature, preserving image sensor bias stability. |
Use Scenario: Guards H-bridge gate driver supply against inductive kickback from 3-phase motor commutation. IC Role / Device Role / Timing Role: Parallel-connected TVS across 12V logic supply, absorbing repetitive 100A surge currents during fault conditions. Use Value: 100A IFSM rating supports >10,000 cycles of 8.3ms half-sine surges without degradation per ISO7637-2 Pulse 2a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA R2G (ON Semiconductor) | Same 30V VRWM, 48.4V VC, but 100A IFSM vs. 100A; slightly higher VF (3.8V vs. 3.5V) and wider VBR spread (33–38V). | Qualified to AEC-Q101 Rev G, but lacks explicit ISO10605 30kV certification in public datasheet. | Select when cross-manufacturer second sourcing is required and ISO10605 validation is handled at system level. |
| TPSMBS30C (Taiwan Semiconductor) | Identical VRWM and VC, but lower PPK (400W), higher IR (1.0μA), and non-IATF 16949 manufacturing. | Not PPAP-capable; suitable for non-safety-critical interior modules where full automotive change control is not mandated. | Choose for cost-sensitive infotainment accessories where AEC-Q101 and PPAP are optional. |
Compared with SMBJ30CAQ-13-F, the ON Semi part offers equivalent clamping but less ESD assurance, while the Taiwan Semi part sacrifices peak power and process control for lower cost - making the Diodes device optimal for safety-critical power rail protection requiring full ISO/PPAP traceability.
Availability
SMBJ30CAQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera systems, and electric power steering modules requiring stable component supply with full AEC-Q101 documentation and lot-level traceability.
Supply support for SMBJ30CAQ-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The SMBJ series targets automotive-grade transient suppression, designed specifically to meet ISO7637-2 and ISO10605 requirements in harsh vehicular environments with guaranteed AEC-Q101 qualification and IATF 16949 production control.
FAQ
Is SMBJ30CAQ-13-F unidirectional or bidirectional?
SMBJ30CAQ-13-F is a bi-directional TVS diode, indicated by the "C" suffix in the part number per Diodes datasheet Note 9. It provides symmetrical clamping for both positive- and negative-polarity transients, with no cathode band marking required on the SMB package.
What is the maximum clamping voltage at rated peak current?
The maximum clamping voltage is 48.4V at 12.4A peak pulse current (IPP), measured using the standardized 10×1000μs waveform defined in Figure 4 of DS40740 Rev. 15-2. This value is guaranteed across –55°C to +175°C operating temperature range.
Does this part require moisture baking before reflow soldering?
No. SMBJ30CAQ-13-F has a moisture sensitivity level (MSL) of 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without pre-baking - confirmed in Mechanical Data section of the datasheet.
How does SMBJ30CAQ-13-F differ from standard SMBJ30A (non-Q) variants?
The "Q" suffix denotes automotive qualification: SMBJ30CAQ-13-F is AEC-Q101 tested, PPAP-capable, and manufactured in IATF 16949-certified facilities, whereas non-Q versions lack change control, lot traceability, and automotive stress validation - making them unsuitable for Tier-1 automotive designs.
SMBJ30CAQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMBJ30CAQ-13-F FAQ
1.How can I place an order for SMBJ30CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ30CAQ-13-F 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 SMBJ30CAQ-13-F reliable?
The price and inventory of SMBJ30CAQ-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ30CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ30CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ30CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ30CAQ-13-F?
SMBJ30CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ30CAQ-13-F 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 SMBJ30CAQ-13-F?
For technical support, including SMBJ30CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ30CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ30CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ30CAQ-13-F 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 SMBJ30CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ30CAQ-13-F?
All SMBJ30CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ30CAQ-13-F, 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 SMBJ30CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ30CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ30CAQ-13-F Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
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…
