My Inquiry
My Account
Diodes Incorporated 3.0SMCJ45AQ-13
- Part No.:
- 3.0SMCJ45AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ45AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,206
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3.0SMCJ45AQ-13 from Diodes Incorporated is a unidirectional 45V standoff, 3000W peak pulse power transient voltage suppressor (TVS) in SMC package, featuring 72.7V max clamping voltage at 41.3A peak pulse current, 5µA max reverse leakage at 45V, and AEC-Q101 qualified for automotive power rail protection.
For engineers reviewing the 3.0SMCJ45AQ-13 datasheet, 3.0SMCJ45AQ-13 pinout, 3.0SMCJ45AQ-13 application, or 3.0SMCJ45AQ-13 equivalent, key selection criteria include clamping voltage margin vs. system rail, IEC-61000-4-2 ESD robustness (30kV air/30kV contact), thermal derating above +25°C, and SMC footprint compatibility with IPC-7351B land patterns.
Technical Context
This TVS diode operates as a unidirectional shunt protector, triggered when reverse voltage exceeds 45V standoff and clamping within 1ns to limit transients to ≤72.7V. It sustains 3000W peak pulse power per 10×1000µs waveform and handles up to 300A surge current in 8.3ms half-sine wave under specified mounting conditions.
Designed for automotive-grade reliability, it meets AEC-Q101 stress tests including temperature cycling, HTRB, and ESD per HBM (8kV), CDM (1kV), and MM (800V), with glass-passivated die construction and RoHS-compliant matte tin plating on SMC terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000µs transient without failure under defined PCB layout |
| Reverse Standoff Voltage | 45V - maximum continuous DC or RMS operating voltage before clamping initiates |
| Clamping Voltage | 72.7V @ 41.3A - limits downstream circuit voltage during worst-case surge, providing ≥27.7V margin over 45V rail |
| Breakdown Voltage | 50.0–55.3V @ 1mA - ensures reliable turn-on before overstress of protected ICs or MOSFETs |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against common handling and system-level ESD events |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive environments and industrial power supply locations |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating, 0.21g weight, and matte tin-plated leads solderable per MIL-STD-202 Method 208. Cathode band denotes polarity for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines clamping reference point |
| Cathode | High-side transient input | Connected to protected line (e.g., 45V battery rail); carries full surge current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000W Peak Pulse Power | Enables protection of 12V/24V/48V automotive power nets against ISO 7637-2 Pulse 1/2a/3a and load dump surges |
| AEC-Q101 Qualified | Validated for automotive use with PPAP support, IATF 16949 manufacturing, and high-reliability screening |
| Glass-Passivated Die | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
| RoHS & Halogen-Free | Complies with EU RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Automotive Body Control Module (BCM) | Industrial 48V DC Power Distribution |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O from battery transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between 12V supply rail and ground, activated within 1ns to limit voltage to safe levels. Use Value: Maintains 72.7V clamping at 41.3A, ensuring downstream 12V-rated components remain below absolute maximum ratings during 100V+ surges. |
Use Scenario: Safeguarding programmable logic controllers (PLCs) and motor drives connected to 48V industrial power buses exposed to switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 48V input, coordinated with upstream fuses and downstream DC-DC converters. Use Value: Withstands 3000W pulses and operates reliably from −55°C to +150°C, enabling deployment in uncontrolled ambient enclosures. |
| Automotive Infotainment Power Supply | Telecom Remote Radio Unit (RRU) |
Use Scenario: Shielding USB-C PD controllers and display power rails in head units from conducted ESD and ignition noise. IC Role / Device Role / Timing Role: Secondary protection stage after common-mode chokes, clamping fast-rising ESD events per IEC-61000-4-2. Use Value: Delivers 30kV air/30kV contact ESD immunity while maintaining low leakage (<5µA) to avoid standby current penalties. |
Use Scenario: Protecting 48V PoE-powered remote radio units in outdoor base stations from lightning-induced surges on DC feed lines. IC Role / Device Role / Timing Role: Front-end TVS on outdoor-rated 48V DC input, mounted with thermal relief pads per JEDEC J-STD-020 Level 1. Use Value: Provides 3000W surge capacity with 72.7V clamping-low enough to protect 65V-rated MOSFETs and gate drivers in RF power stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ45A | Lower 400W peak power, SMA package, 73.0V clamping at 5.5A | Suitable only for low-energy signals (e.g., CAN, LIN), not 48V power rails | Select when space-constrained and surge energy <50mJ; not for automotive power net protection |
| SMCJ45A | Same 3000W rating and SMC package but non-automotive grade (no AEC-Q101) | Lacks PPAP documentation and automotive qualification testing | Use in industrial or consumer designs where AEC-Q101 is not mandated |
Compared with SMAJ45A and SMCJ45A, the 3.0SMCJ45AQ-13 uniquely combines AEC-Q101 qualification, 3000W surge capability, and SMC thermal performance-making it the only choice for production automotive 45V rail protection requiring change control and traceability.
Availability
3.0SMCJ45AQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial 48V power distribution, telecom remote radio units, and infotainment systems requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ45AQ-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The 3.0SMCJ series belongs to Diodes' automotive-qualified TVS portfolio, engineered specifically for robust transient suppression in harsh-environment vehicle power networks and industrial DC systems.
FAQ
What does the 'Q' suffix signify in 3.0SMCJ45AQ-13?
The 'Q' suffix indicates AEC-Q101 qualification, meaning the device has passed stress tests for temperature cycling, high-temperature reverse bias, and ESD per automotive standards. It also confirms PPAP capability, IATF 16949 manufacturing, and controlled change management-required for Tier 1 automotive supply chains.
Can 3.0SMCJ45AQ-13 be used in bidirectional configurations?
No-this is a unidirectional TVS diode with cathode band marking. Bidirectional protection requires separate part numbers ending in '(C)A' (e.g., 3.0SMCJ45CA-13). Using this part in reverse-biased mode risks permanent breakdown due to lack of symmetrical avalanche structure.
How does thermal derating affect its 3000W rating?
The 3000W rating applies only at +25°C ambient. Above that, power must be reduced per Figure 1: at +85°C, derated to ~70% (2100W); at +125°C, to ~40% (1200W). Effective PCB copper area (8mm² minimum per lead) is required to maintain thermal performance.
Is the SMC package compatible with standard reflow profiles?
Yes-the SMC package is rated for moisture sensitivity level 1 (unlimited floor life) and supports standard lead-free reflow profiles (peak 260°C, 30s max). Its matte tin finish ensures reliable wetting, and the 0.21g mass allows uniform heating without tombstoning on typical 2-oz copper boards.
3.0SMCJ45AQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- 3.0SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 72.7V
- Current - Peak Pulse (10/1000µs):
- 41.3A
- Power - Peak Pulse:
- 3000W (3kW)
- 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
3.0SMCJ45AQ-13 FAQ
1.How can I place an order for 3.0SMCJ45AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ45AQ-13 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 3.0SMCJ45AQ-13 reliable?
The price and inventory of 3.0SMCJ45AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ45AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ45AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ45AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ45AQ-13?
3.0SMCJ45AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ45AQ-13 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 3.0SMCJ45AQ-13?
For technical support, including 3.0SMCJ45AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ45AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ45AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ45AQ-13 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 3.0SMCJ45AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ45AQ-13?
All 3.0SMCJ45AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ45AQ-13, 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 3.0SMCJ45AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ45AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ45AQ-13 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…
