My Inquiry
My Account
Taiwan Semiconductor Corporation SMAJ130CA
- Part No.:
- SMAJ130CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130CA.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,754
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ130CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor diode in DO-214AC (SMA) package, designed for robust overvoltage protection in DC power rails. It features a 130 V working stand-off voltage (VWM), 144–176 V breakdown voltage (VBR @ 1 mA), 209 V maximum clamping voltage (VC) at 1.5 A peak impulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMAJ130CA datasheet, SMAJ130CA pinout, SMAJ130CA application, or SMAJ130CA equivalent, this device is selected for automotive load-dump immunity, industrial SMPS input protection, and DC/DC converter rail stabilization where fast clamping (<1 ps response), low leakage (<1 µA at VWM), and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are required.
Technical Context
The SMAJ130CA operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without requiring external polarity management. Its glass-passivated junction ensures stable breakdown characteristics and low leakage across -55°C to +150°C operating temperature range.
It delivers 400 W peak pulse power under 10/1000 µs waveform (derated above 25°C per Fig.2), supports 40 A non-repetitive forward surge (8.3 ms half-sine), and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements in its DO-214AC molded package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse voltage before conduction begins; defines protected rail's nominal operating limit |
| VBR min/max | 144 V / 176 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot |
| VC @ IPPM | 209 V @ 1.5 A - Clamped voltage during 10/1000 µs transient; determines downstream component stress margin |
| PPPM | 400 W - Peak pulse power handling with 10/1000 µs waveform; supports high-energy automotive transients |
| IR @ VWM | <1 µA - Reverse leakage at rated stand-off; minimizes quiescent power loss in battery-backed systems |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood or enclosed industrial environments |
| Package | DO-214AC (SMA) - Surface-mount outline with 0.060 g mass; compatible with automated placement and reflow |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads, cathode band marking for unidirectional variants; SMAJ130CA is bidirectional and marked with "SK" code - no polarity indicator required. Leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction between terminals; either lead connects to protected line or ground - simplifies PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and <1 µA leakage across temperature and lifetime |
| Sub-1 ps response time | Clamps ESD and fast transients before sensitive ICs experience overstress |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (line dump) waveforms |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing programs |
Applications
| Automotive Power Distribution | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bidirectional TVS placed between battery rail and ground to clamp ±100 V spikes within 200 ns. Use Value: Limits clamped voltage to 209 V, preserving MOSFET gate oxide integrity and MCU supply regulators. | Use Scenario: Safeguarding AC-DC front-end rectifiers and PFC controllers from lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing 400 W pulses on bulk DC bus before downstream converters. Use Value: Prevents catastrophic failure of electrolytic capacitors and bridge rectifiers during 10/1000 µs line surges. |
| On-board DC/DC Converter | LED Driver Power Rail |
Use Scenario: Securing isolated 5 V/3.3 V outputs of point-of-load buck converters in factory automation PLCs. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS shunting transients induced by relay switching or motor commutation noise. Use Value: Maintains output regulation stability without adding standby current burden to low-power systems. | Use Scenario: Shielding constant-current LED drivers from inductive kickback when driving solenoid-based dimming circuits. IC Role / Device Role / Timing Role: Fast-clamping TVS across driver output to absorb >1 kV spikes generated by coil de-energization. Use Value: Extends LED module lifetime by preventing forward-bias overvoltage damage to series-connected emitters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130CA (Bourns) | Same VWM/VC, but SMB package (DO-214AA); 600 W PPPM rating | Higher power handling, larger footprint; requires PCB pad revision | Select when higher surge margin is needed and board space allows SMB outline |
| 1.5KE130CA (ON Semiconductor) | Through-hole DO-15; 1.5 kW PPPM; slower thermal response | Not SMT-compatible; unsuitable for automated assembly or high-density layouts | Choose only for legacy through-hole designs or prototyping with breadboard fixtures |
Compared with SMBJ130CA and 1.5KE130CA, SMAJ130CA offers optimal balance of SMT compatibility, 400 W surge capacity, and minimal footprint - making it preferred for space-constrained automotive and industrial modules where DO-214AC placement and reflow yield are critical.
Availability
SMAJ130CA is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and LED lighting systems requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMAJ130CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices since 1979.
The SMAJ series was developed specifically for surface-mount transient protection in automotive and industrial environments, emphasizing ISO 7637-2 compliance, tight VBR tolerance, and robust high-temperature reliability.
FAQ
What is the clamping voltage of SMAJ130CA at its rated peak pulse current?
The SMAJ130CA has a maximum clamping voltage (VC) of 209 V at 1.5 A peak impulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components see limited overvoltage stress during transient events. The SMAJ130CA datasheet specifies this parameter in the Electrical Specifications table on page 3.
Is SMAJ130CA unidirectional or bidirectional, and how is polarity identified?
SMAJ130CA is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without polarity sensitivity. Unlike unidirectional variants (e.g., SMAJ130A), it carries no cathode band marking and is identified by the "CA" suffix. The SMAJ130CA functions identically regardless of terminal orientation in-circuit.
Does SMAJ130CA meet automotive transient immunity standards?
Yes, SMAJ130CA meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupled noise). Its 400 W peak pulse power rating and sub-1 ps response time are validated for these waveforms. The SMAJ130CA product documentation explicitly lists ISO 7637-2 compliance in the FEATURES section.
What is the maximum operating temperature for SMAJ130CA?
The SMAJ130CA has a specified operating junction temperature range of -55°C to +150°C, with a maximum steady-state power dissipation (PD) of 1 W at 25°C ambient. Derating follows the curve in Figure 2 of the datasheet, maintaining safe operation up to +150°C junction temperature. This makes SMAJ130CA suitable for under-hood automotive and high-ambient industrial deployments.
How does SMAJ130CA differ from SMAJ130A?
SMAJ130A is unidirectional with a cathode band and specified for single-polarity clamping; SMAJ130CA is bidirectional with symmetrical VBR and no polarity marking. Their key electrical differences include VBR range (SMAJ130A: 144–159 V vs. SMAJ130CA: 144–176 V) and clamping voltage (SMAJ130A: 195 V vs. SMAJ130CA: 209 V at same IPPM). Both share the same DO-214AC package and 400 W rating.
SMAJ130CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- Power - Peak Pulse:
- 400W
- 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:
- DO-214AC (SMA)
SMAJ130CA FAQ
1.How can I place an order for SMAJ130CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130CA 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 SMAJ130CA reliable?
The price and inventory of SMAJ130CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130CA is usually 5 days.
3.What payment methods are accepted for SMAJ130CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130CA?
SMAJ130CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130CA 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 SMAJ130CA?
For technical support, including SMAJ130CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130CA requirements.
6.How does Aetrix verify that SMAJ130CA is sourced from the original manufacturer or authorized distributors?
All SMAJ130CA 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 SMAJ130CA meets industry standards.
7.What is the process for return or replacement of SMAJ130CA?
All SMAJ130CA units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130CA, 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 SMAJ130CA part is unused and in its original packaging.
Return procedure for SMAJ130CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ130CA 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
