My Inquiry
My Account
Diodes Incorporated 3.0SMCJ48A-13
- Part No.:
- 3.0SMCJ48A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ48A-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,630
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3.0SMCJ48A-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 48V reverse standoff voltage (VRWM), 53.3V minimum breakdown voltage (VBR), 77.4V maximum clamping voltage (VC) at 38.8A peak pulse current (IPP), and IEC-61000-4-2 ESD immunity up to 30kV (air/contact). It is used in industrial power supplies, automotive body control modules, and PoE-powered equipment.
For engineers reviewing the 3.0SMCJ48A-13 datasheet, 3.0SMCJ48A-13 pinout, 3.0SMCJ48A-13 application, or 3.0SMCJ48A-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current handling under 10/1000μs transients, thermal derating above +25°C ambient, and SMC package solderability per MIL-STD-202.
Technical Context
This TVS operates as a silicon avalanche diode with glass-passivated junction, triggered when transient voltage exceeds its 48V standoff threshold. Its unidirectional configuration provides forward conduction path only during negative transients on the cathode side, requiring correct polarity placement across protected lines.
Clamping performance is specified per 10×1000μs waveform (IEC 61000-4-5 surge), delivering 77.4V clamping at 38.8A IPP while maintaining low leakage (<5μA at VRWM). Thermal derating begins at +25°C, reducing peak power linearly to ~50% at +125°C per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs surges without failure under defined mounting conditions |
| Reverse Standoff Voltage (VRWM) | 48.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 53.3–58.9V @ 1.0mA - guaranteed avalanche initiation range for reliable triggering |
| Clamping Voltage (VC) | 77.4V @ 38.8A - maximum voltage seen by downstream circuit during rated surge event |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling electrostatic discharge |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive and industrial environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with matte tin-plated leads; UL 94V-0 rated; 0.21g weight; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground during overvoltage events |
| Anode | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 24–48V systems |
| Glass-passivated die | Ensures stable VBR and low leakage over temperature and lifetime vs. epoxy-passivated alternatives |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements for green electronics manufacturing |
| SMC package thermal performance | Supports 300A surge current capability when mounted on 8mm² copper land (per JEDEC JESD22-A114) |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: 24V DC input protection against load dump and inductive switching transients in programmable logic controller field terminals. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converters and microcontroller power inputs. Use Value: Limits transient voltage to ≤77.4V, preventing damage to 36V-rated input regulators and ensuring >100,000 surge cycles per IEC 61000-4-5. |
Use Scenario: Protection of LIN bus transceivers and door module power rails against battery reverse connection and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional TVS connected between VBAT and GND, absorbing 100V/50ms load dump pulses. Use Value: Clamps within 100ns to <80V, preserving transceiver operation and meeting ISO 7637-2 Pulse 5a requirements. |
| 48V Telecom Power Supplies | PoE++ Powered Devices |
Use Scenario: Input-stage surge suppression on 48V intermediate bus in telecom rectifier modules exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense parallel to bulk capacitor, shunting energy before DC-DC stage. Use Value: Handles 3000W peak power without thermal runaway, enabling compliance with GR-1089-CORE Zone 3 surge testing. |
Use Scenario: Protection of IEEE 802.3bt Type 4 (90W) PSE interface against cable ESD and hot-swap transients. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional part guards DC bias rail feeding PD controller ICs. Use Value: Provides 30kV ESD immunity and sub-80V clamping, safeguarding 65V-rated PD controllers like MAX5984. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48A-13 (Diodes Inc.) | 2000W PPK, same VRWM/VC but lower IPP (27.4A) and smaller SMB package | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is ≤Level 2 |
| 1.5SMC48A (ON Semiconductor) | 1500W PPK, identical VRWM/VC specs but higher IR (10μA) and no AEC-Q200 qualification | Not recommended for automotive under-hood use due to lower power rating and qualification gap | Acceptable for cost-sensitive industrial designs where 3000W headroom is unnecessary |
Compared with SMBJ48A-13 and 1.5SMC48A, the 3.0SMCJ48A-13 delivers 50% higher surge energy absorption in the same SMC footprint, enabling single-device compliance with demanding industrial and automotive surge standards without parallel stacking.
Availability
3.0SMCJ48A-13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and 48V telecom power supplies requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 3.0SMCJ48A-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for robust front-end surge protection in harsh-environment applications where 3000W pulse handling and AEC-Q200 readiness are mandatory.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ48A-13 under a 10×1000μs surge?
The maximum clamping voltage (VC) is 77.4V at 38.8A peak pulse current (IPP), measured per the 10×1000μs waveform defined in IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the highest voltage imposed on protected circuitry during a rated surge event.
Is the 3.0SMCJ48A-13 suitable for automotive under-hood applications?
Yes - it is qualified to AEC-Q200 Grade 1 (−40°C to +125°C) when ordered with the Q-suffix (e.g., 3.0SMCJ48AQ-13), manufactured in IATF 16949-certified facilities, and supports PPAP documentation. The standard 3.0SMCJ48A-13 meets JEDEC reliability standards but lacks formal automotive qualification.
How does the SMC package affect thermal performance compared to SMA or SMB?
The SMC package offers 2.5× the copper pad area of SMA and 1.8× that of SMB, enabling superior heat dissipation during repetitive surges. With 8mm² mounting pads, it sustains 300A 8.3ms half-sine surge current (IFSM) - critical for load-dump protection - whereas SMA/SMB variants derate significantly under identical conditions.
Can the 3.0SMCJ48A-13 be used in bidirectional configurations?
No - it is a unidirectional TVS with a cathode band marking. For bidirectional protection (e.g., AC lines or differential buses), the bi-directional variant 3.0SMCJ48CA-13 must be used, which has symmetric clamping in both polarities and no polarity indicator.
3.0SMCJ48A-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):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ48A-13 FAQ
1.How can I place an order for 3.0SMCJ48A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ48A-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 3.0SMCJ48A-13 reliable?
The price and inventory of 3.0SMCJ48A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ48A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ48A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ48A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ48A-13?
3.0SMCJ48A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ48A-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 3.0SMCJ48A-13?
For technical support, including 3.0SMCJ48A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ48A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ48A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ48A-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 3.0SMCJ48A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ48A-13?
All 3.0SMCJ48A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ48A-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 3.0SMCJ48A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ48A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ48A-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…
