My Inquiry
My Account
Diodes Incorporated SMCJ30AQ-13-F
- Part No.:
- SMCJ30AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ30AQ-13-F.pdf
- Description:
- TVS DIODE 30VWM 48.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ30AQ-13-F from Diodes Incorporated is a unidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 30V reverse standoff voltage (VRWM), 48.4V max clamping voltage at 31A peak pulse current, and AEC-Q101 qualification for ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD protection in vehicle power-line circuits.
For engineers reviewing the SMCJ30AQ-13-F datasheet, SMCJ30AQ-13-F pinout, SMCJ30AQ-13-F application, or SMCJ30AQ-13-F equivalent, this device is selected for robust overvoltage protection in 12V/24V automotive subsystems where fast response (<1 ns), low clamping ratio (1.61), and IATF 16949-manufactured reliability are required.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds 30V VRWM and fully clamping within nanoseconds to limit transients to ≤48.4V at 31A (10/1000μs waveform). It sustains 200A non-repetitive surge (8.3ms half-sine) and dissipates 5W steady-state power at TL = +75°C.
Designed for automotive-grade durability, it features glass-passivated die construction, RoHS-compliant matte tin plating, moisture sensitivity level 1, and operates across –55°C to +150°C junction temperature range - meeting strict PPAP and change-control requirements for OEM supply chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - handles ISO7637-2 Pulse 1 (–100V) without failure |
| Reverse Standoff Voltage (VRWM) | 30.0V - blocks normal 12V/24V system voltages while remaining inactive |
| Max Clamping Voltage (VC) | 48.4V @ IPP = 31.0A - limits downstream IC stress during transients |
| Breakdown Voltage (VBR) | 33.3–36.8V @ IT = 1.0mA - ensures reliable turn-on margin above VRWM |
| Leakage Current (IR) | ≤5.0µA @ VRWM - minimizes standby power loss in always-on modules |
| Junction Temperature Range | –55°C to +150°C - supports under-hood placement in engine control units |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; cathode band indicates polarity; weight ≈ 0.21g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / surge return path | Connected to ground or low-side rail; carries full transient current during clamping |
| Cathode | Protected line input / high-side connection | Connected to protected circuit node (e.g., LIN bus, sensor VCC); defines unidirectional blocking direction |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse rating | Enables single-device protection against severe ISO7637-2 Pulse 1 (–100V) and Pulse 3a (–150V) events |
| AEC-Q101 qualified & PPAP capable | Validated for automotive production use with documented process controls and lot traceability |
| Glass-passivated die | Ensures stable VBR and low leakage over temperature and lifetime in harsh environments |
| Fast response time (<1 ns) | Clamps before sensitive MCU or CAN transceiver inputs are damaged by ESD or load dump |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) LIN Bus Line |
|---|---|
Use Scenario: Protects 12V main power rail of engine ECU against load dump (ISO7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and input filter capacitor. Use Value: Clamps transients to 48.4V, preventing damage to 40V-rated DC-DC converters and microcontrollers. | Use Scenario: Shields LIN physical layer transceivers from ESD (±30kV contact/air per ISO10605) and coupled noise on wiring harnesses. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between LIN signal line and chassis ground. Use Value: Sub-1ns response preserves LIN signal integrity while limiting voltage to safe levels for transceiver I/O cells. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Electric Power Steering (EPS) Motor Driver Supply |
Use Scenario: Safeguards 5V/3.3V camera module power rails from induced surges during ignition or relay switching. IC Role / Device Role / Timing Role: Secondary-stage TVS after primary bulk suppression, placed near image sensor PMIC. Use Value: 5µA max leakage avoids loading low-current LDO outputs; 30V VRWM matches regulated supply headroom. | Use Scenario: Protects H-bridge gate driver ICs and current sense amplifiers from motor back-EMF spikes and PWM-induced transients. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS on 12V logic supply rail feeding motor controller ASIC. Use Value: 200A IFSM rating withstands repetitive commutation surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-13-F | 600W PPK, same VRWM/VC, SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy transients (e.g., ISO10605 only); not rated for ISO7637-2 Pulse 1/3a | Select when space-constrained and surge severity is moderate (e.g., interior modules). |
| TPSMA6L30A | 600W PPK, same VRWM, but 53.3V VC @ 28.1A; SOD-123FL package | Higher clamping voltage reduces protection margin; unsuitable for critical power-rail protection | Use only for signal-line protection where clamping ratio tolerance is higher. |
Compared with SMBJ30A-13-F and TPSMA6L30A, SMCJ30AQ-13-F delivers 2.5× higher peak power handling and lower clamping voltage - making it the sole choice for front-end protection in high-risk automotive power domains requiring full ISO7637-2 compliance.
Availability
SMCJ30AQ-13-F is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering systems requiring stable component supply with full automotive qualification traceability.
Supply support for SMCJ30AQ-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.
This device belongs to the SMCJ(AQ) series - engineered specifically for AEC-Q101-compliant transient suppression in automotive power distribution networks, with emphasis on ISO7637-2 and ISO10605 compliance.
FAQ
What does the "AQ" suffix signify in SMCJ30AQ-13-F?
The "AQ" suffix denotes AEC-Q101 qualification, PPAP capability, and manufacturing in IATF 16949-certified facilities. It confirms full automotive-grade process control, lot traceability, and extended temperature validation (–55°C to +150°C), distinguishing it from commercial-grade SMCJ30A variants.
Is SMCJ30AQ-13-F unidirectional or bidirectional?
SMCJ30AQ-13-F is unidirectional, indicated by the absence of "C" in the part number. It protects against negative transients on positive rails (e.g., battery line to ground) and conducts only in reverse breakdown - confirmed by cathode-band marking and electrical specs including forward voltage (VF = 3.5V @ 100A).
Can this TVS be used in 24V truck systems?
Yes - its 30V VRWM provides adequate margin above nominal 24V systems (typically 20–28V operating range), and its 48.4V clamping voltage remains below the 60V absolute maximum rating of most 24V-compatible power management ICs, satisfying ISO7637-2 Pulse 1 (–100V) and Pulse 2a (+50V) requirements.
What is the thermal derating behavior above +25°C ambient?
At TL = +75°C, steady-state power dissipation is derated to 5.0W (Fig. 6); peak pulse power follows the curve in Fig. 1, retaining ~80% of 1500W rating up to +85°C ambient. Derating is linear beyond that, reaching ~50% at +125°C ambient - consistent with SMC package thermal resistance (RθJL ≈ 20°C/W).
SMCJ30AQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 31A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- SMC
SMCJ30AQ-13-F FAQ
1.How can I place an order for SMCJ30AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ30AQ-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 SMCJ30AQ-13-F reliable?
The price and inventory of SMCJ30AQ-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 SMCJ30AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ30AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ30AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ30AQ-13-F?
SMCJ30AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ30AQ-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 SMCJ30AQ-13-F?
For technical support, including SMCJ30AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ30AQ-13-F requirements.
6.How does Aetrix verify that SMCJ30AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ30AQ-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 SMCJ30AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ30AQ-13-F?
All SMCJ30AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ30AQ-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 SMCJ30AQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ30AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ30AQ-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…
