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Broadcom Limited ASSR-1511-301E
- Part No.:
- ASSR-1511-301E
- Manufacturer:
- Broadcom Limited
- Category:
- Solid State Relays (SSR)
- Package:
- 6-SMD (0.300", 7.62mm)
- Datasheet:
-
ASSR-1511-301E.pdf
- Description:
- SSR RELAY SPST-NO 1A 0-60V
- Quantity:
- Payment:
- Shipping:
Inventory:3,240
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Product details
Overview
The ASSR-1511-301E from Broadcom is a single-channel, normally-off solid-state relay (Photo MOSFET) with optically isolated input and dual-MOSFET output stage, rated for 60 V output withstand voltage, 1.0 A/2.0 A DC output current (depending on connection), and 0.1–0.5 Ω on-resistance. It replaces electromechanical relays in industrial control and data acquisition systems requiring high transient immunity and galvanic isolation.
For engineers reviewing the ASSR-1511-301E datasheet, pinout, applications, or equivalent options, key selection criteria include its 3750 Vrms input-output isolation, gull-wing DIP-6 surface-mount package, dual-output-connection capability (AC/DC vs. DC-only), fast switching (0.13–0.27 ms turn-on), and CMOS-compatible 3 mA minimum LED drive current.
Technical Context
The ASSR-1511-301E integrates an AlGaAs infrared LED input stage optically coupled to a high-speed photovoltaic diode array and driver circuit that controls two discrete high-voltage MOSFETs in series. Its output stage supports both AC/DC and DC-only configurations - Connection A enables bidirectional 60 V operation at 1.0 A, while Connection B enables unidirectional 0–60 V operation at 2.0 A with reduced R(ON).
It achieves 3750 Vrms isolation per UL1577 via internal plastic insulation (0.08 mm clearance) and meets CSA Component Acceptance Notice #5. Switching is controlled by LED forward current (IF ≥ 3 mA for turn-on; VF ≤ 0.8 V for turn-off), with transient rejection exceeding 1 kV/μs on both output and input-output paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Withstand Voltage | 60 V - Maximum continuous voltage across output terminals before breakdown; requires external overvoltage protection for transients. |
| Output Current Rating | 1.0 A (Connection A) / 2.0 A (Connection B) - DC load current capacity; derated above 25°C per Figure 2 & 3. |
| On-Resistance R(ON) | 0.2 Ω typical (Connection A, 1A) / 0.1 Ω typical (Connection B, 2A) - Directly impacts conduction loss and thermal rise in power path. |
| Turn-On/Off Time | 0.27 ms / 0.04 ms typical - Enables high-frequency switching in PLC I/O and test equipment without mechanical wear. |
| Input-Output Isolation | 3750 Vrms for 1 min - Meets reinforced insulation requirements for industrial safety standards (UL1577, CSA). |
| Operating Temperature | –40°C to +85°C - Validated performance range for factory automation and medical instrumentation environments. |
| Input Drive Threshold | 3 mA minimum LED current - Ensures reliable turn-on under worst-case temperature and aging conditions; CMOS-compatible. |
Pinout & Package
ASSR-1511-301E uses a 6-pin DIP gull-wing surface-mount package (300-mil width), optimized for automated assembly and high-density PCB layouts. Pin 1 is marked with a dot; pins 1–3 form the input anode/cathode/common, and pins 4–6 form the output source/drain/common.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | LED Anode | Positive input terminal for infrared LED; requires current-limiting resistor when driven from 3.3 V or 5 V logic. |
| Pin 2 | LED Cathode | Ground return for LED input; tied to system ground or low-side switch node. |
| Pin 3 | Input Common / LED Cathode Tie | Internally connected to Pin 2; used for layout symmetry and thermal relief in high-current designs. |
| Pin 4 | Output Source (S1) | High-side output terminal for Connection A (AC/DC); connects to load positive in DC-only mode (Connection B). |
| Pin 5 | Output Drain (D1) | Low-side output terminal for Connection A; serves as load return in DC-only mode (Connection B). |
| Pin 6 | Output Common / Drain Tie | Internally connected to Pin 5; provides second solder point for improved thermal dissipation and mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional signal switching | Enables AC/DC load control without polarity constraints in industrial sensors and motor feedback circuits. |
| DC-only high-current mode | Supports 2.0 A at 0.1 Ω R(ON) - reduces I²R loss by 50% vs. Connection A, extending thermal margin in compact enclosures. |
| High-speed MOSFET switching | 0.27 ms turn-on / 0.04 ms turn-off - eliminates contact bounce and enables sub-millisecond sequencing in test fixtures. |
| 60 V output withstand rating | Withstands 60 V DC or peak AC across output - suitable for 24 V/48 V industrial buses and solenoid drivers. |
| 3750 Vrms optical isolation | Meets UL1577 and CSA safety requirements - allows safe interfacing between microcontroller I/O and mains-referenced loads. |
Applications
| Industrial PLC I/O Modules | Data Acquisition Front-Ends |
|---|---|
|
Use Scenario: Isolating digital outputs in programmable logic controllers driving 24 V DC solenoids, valves, and indicator lamps. IC Role / Device Role / Timing Role: Solid-state relay replacing EMR for zero-bounce, long-life switching of field devices with galvanic separation. Use Value: Eliminates mechanical wear and contact arcing, enabling >10⁹ operations and reducing maintenance in 24/7 production lines. |
Use Scenario: Multiplexed analog input channel protection in modular DAQ systems handling ±10 V sensor signals. IC Role / Device Role / Timing Role: Output-side switch isolating measurement channels during calibration or fault conditions. Use Value: Prevents cross-talk and ground loops between channels while supporting fast reconfiguration (<1 ms) via microcontroller GPIO. |
| Medical Instrumentation | Security System Control Panels |
|
Use Scenario: Safe activation of patient-connected actuators (e.g., infusion pump motors) in Class II medical devices. IC Role / Device Role / Timing Role: Reinforced-isolation relay ensuring patient safety by separating low-voltage control logic from power stages. Use Value: Complies with IEC 60601-1 creepage/clearance requirements (7.4 mm) and delivers 3750 Vrms withstand for leakage current control. |
Use Scenario: Zone monitoring and alarm triggering in fire/security panels managing door locks, sirens, and strobes. IC Role / Device Role / Timing Role: High-reliability switching element controlling 12–24 V DC alarm loads with fail-safe open-circuit behavior. Use Value: Delivers >1 kV/μs transient immunity against ESD and lightning-induced surges in unshielded building wiring environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solid-state relay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Toshiba TLP3558A | 60 V/1.2 A, SO-6 package, 0.25 Ω R(ON), 3750 Vrms isolation, but only DC-only output configuration. | Lacks AC/DC bidirectional support; unsuitable for AC solenoid or universal load switching. | Select when board space is constrained and only unidirectional 24 V DC loads are required. |
| Vishay VO3120 | 60 V/1.0 A, DIP-6 gull-wing, 0.35 Ω R(ON), 5000 Vrms isolation, but slower switching (0.5 ms Ton). | Higher isolation voltage but lower speed limits use in high-frequency test sequencing. | Prefer where enhanced safety margin outweighs timing requirements, e.g., mains-connected HVAC controls. |
Compared with TLP3558A and VO3120, the ASSR-1511-301E uniquely supports both AC/DC and DC-only output topologies in the same footprint, delivering the lowest R(ON) in DC mode (0.1 Ω) and fastest switching (0.27 ms Ton) among gull-wing DIP-6 SSRs with 3750 Vrms rating.
Availability
ASSR-1511-301E is available at Aetrix Electronics and suitable for industrial controls, factory automation, and medical instrumentation requiring stable component supply, RoHS-compliant sourcing, and long-term lifecycle support.
Supply support for ASSR-1511-301E 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
Broadcom Inc. is a global semiconductor leader specializing in infrastructure software, networking, and optoelectronics solutions, with deep expertise in isolation, signal integrity, and high-reliability components.
The ASSR-15XX Series was designed specifically for high-current, high-isolation industrial switching applications - replacing electromechanical relays with solid-state reliability, speed, and longevity in harsh environments.
FAQ
What is the maximum continuous output current for ASSR-1511-301E in DC-only mode?
The ASSR-1511-301E supports up to 2.0 A continuous output current in DC-only mode (Connection B), with on-resistance reduced to 0.1 Ω typical. This rating applies at TA = 25°C and must be derated per Figure 3 in the datasheet - e.g., to ~1.4 A at 60°C ambient. The device's 800 mW output power dissipation limit and 125°C max junction temperature govern thermal boundaries.
Does ASSR-1511-301E support AC load switching?
Yes, ASSR-1511-301E supports AC load switching using Connection A, which enables bidirectional operation with ±60 V output withstand voltage. In this configuration, it delivers 1.0 A RMS current and 0.2 Ω typical R(ON). The internal dual-MOSFET topology ensures symmetrical conduction in both directions, making it suitable for AC solenoids, transformers, and universal motor controls.
What is the minimum input LED current required to reliably turn on ASSR-1511-301E across temperature?
The ASSR-1511-301E turns on with a minimum input LED current of 3 mA, verified over –40°C to +85°C. However, Broadcom recommends operating at IF = 5–10 mA to ensure robust performance across temperature extremes and LED aging. At 5 mA, typical forward voltage is 1.3 V, requiring a ~470 Ω series resistor from a 3.3 V supply.
How does the gull-wing leadform of ASSR-1511-301E impact PCB layout and thermal performance?
The gull-wing DIP-6 leadform of ASSR-1511-301E enables standard SMT placement and reflow (JEDEC J-STD-020), with recommended land pattern dimensions provided in the datasheet. Pins 4–6 carry output current and benefit from wide copper pours and thermal vias to inner layers - especially critical in DC-only mode where 2.0 A conduction generates ~0.4 W loss at 0.1 Ω R(ON).
Is ASSR-1511-301E certified for safety-critical applications such as medical or industrial machinery?
Yes, ASSR-1511-301E is UL recognized (3750 Vrms per UL1577) and CSA approved (Component Acceptance Notice #5), meeting reinforced insulation requirements for industrial and Class II medical equipment. It provides 7.4 mm creepage and 7.1 mm clearance - exceeding IEC 61000-4-5 surge immunity and IEC 60601-1 patient-protection thresholds when properly implemented.
ASSR-1511-301E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- ASSR
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.3VDC
- Voltage - Load:
- 0 V ~ 60 V
- Load Current:
- 1 A
- On-State Resistance (Max):
- 500 mOhms
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-DIP Gull Wing
- Approval Agency:
- CSA, UL
- Grade:
- -
- Qualification:
- -
ASSR-1511-301E FAQ
1.How can I place an order for ASSR-1511-301E through Aetrix?
Please submit a Request for Quotation (RFQ) for ASSR-1511-301E 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 ASSR-1511-301E reliable?
The price and inventory of ASSR-1511-301E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ASSR-1511-301E is usually 5 days.
3.What payment methods are accepted for ASSR-1511-301E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ASSR-1511-301E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ASSR-1511-301E?
ASSR-1511-301E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ASSR-1511-301E 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 ASSR-1511-301E?
For technical support, including ASSR-1511-301E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ASSR-1511-301E requirements.
6.How does Aetrix verify that ASSR-1511-301E is sourced from the original manufacturer or authorized distributors?
All ASSR-1511-301E 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 ASSR-1511-301E meets industry standards.
7.What is the process for return or replacement of ASSR-1511-301E?
All ASSR-1511-301E units undergo pre-shipment inspection (PSI). If there is an issue with ASSR-1511-301E, 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 ASSR-1511-301E part is unused and in its original packaging.
Return procedure for ASSR-1511-301E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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