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Broadcom Limited ASSR-402C-002E
- Part No.:
- ASSR-402C-002E
- Manufacturer:
- Broadcom Limited
- Category:
- Solid State Relays (SSR)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ASSR-402C-002E.pdf
- Description:
- SSR RELAY SPST-NO 40MA 0-400V
- Quantity:
- Payment:
- Shipping:
Inventory:4,210
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Product details
Overview
ASSR-402C-002E from Broadcom (formerly Avago) is a dual-channel, normally-off, solid-state relay in 300-mil DIP-8 package, featuring 400 V output withstand voltage, 0.04 A current rating, 65 Ω typical on-resistance, 0.08 ms turn-on time, and 0.3 nA off-state leakage - deployed for high-reliability signal switching in automated test equipment.
For engineers reviewing the ASSR-402C-002E datasheet, pinout, applications, or equivalent options, key selection criteria include input LED drive compatibility (1 mA min), bi-directional AC/DC load handling, isolation voltage compliance (3750 Vrms), and low C×R (650 pF·Ω) for minimal signal distortion in multiplexer and data acquisition systems.
Technical Context
The ASSR-402C-002E integrates two independent optically isolated SPST Form A switches, each with an AlGaAs LED input stage coupled to a photovoltaic-driven dual-MOSFET output stage. It operates over –40°C to +85°C and requires ≤0.8 V input voltage to ensure reliable turn-off.
Its 3750 Vrms input-output isolation meets UL1577 and CSA Component Acceptance #5; internal clearance is 0.08 mm, creepage is 7.4 mm, and comparative tracking index is 175 V - enabling use in safety-critical measurement instrumentation where galvanic separation and transient immunity (>1 kV/μs) are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Withstand Voltage | 400 V - supports AC/DC loads up to 400 V without breakdown under rated conditions |
| On-Resistance (RON) | 65 Ω typical - ensures low power loss and minimal voltage drop at 40 mA load current |
| Turn-On Time (tON) | 0.08 ms typical - enables high-speed channel scanning in automated test systems |
| Off-State Leakage Current | 0.3 nA typical - preserves signal integrity in high-impedance measurement paths |
| Input Trigger Current | 1 mA minimum - compatible with low-power microcontroller GPIO or logic-level drivers |
| C × R Product | 650 pF·Ω typical - minimizes capacitive coupling and timing skew in precision analog switching |
| Isolation Voltage | 3750 Vrms for 1 min - satisfies reinforced insulation requirements per UL1577 and CSA |
Pinout & Package
Package: 300-mil DIP-8, RoHS-compliant, through-hole mounting with standard 0.100" lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | LED Anode | Input side - connect in series with current-limiting resistor to drive LED |
| 3, 4 | LED Cathode | Input return - common cathode for dual-channel configuration |
| 5, 6 | Output Channel 1 | Bi-directional switch terminals - interchangeable, no polarity constraint |
| 7, 8 | Output Channel 2 | Independent second switch path - electrically isolated from Channel 1 and input |
Key Features
| Feature | Design Value |
|---|---|
| Dual SPST Form A topology | Replaces two electromechanical relays with single 8-pin IC - reduces board area and improves reliability |
| Low C×R (650 pF·Ω) | Minimizes crosstalk and settling time in multi-channel multiplexers and data loggers |
| High dV/dt immunity (1 kV/μs) | Prevents false triggering in noisy industrial environments with fast transients |
| RoHS-compliant lead-free construction | Meets global environmental regulations without compromising solderability or thermal cycling performance |
| 0.3 nA off-state leakage | Enables accurate DC voltage/current measurements without loading high-Z sensor outputs |
Applications
| Automatic Test Equipment | Data Acquisition System |
|---|---|
Use Scenario: High-speed channel routing of sensor signals during functional testing of PCBAs. IC Role / Device Role / Timing Role: Dual-channel bi-directional signal switch providing galvanically isolated path selection. Use Value: 0.08 ms turn-on time and 0.3 nA leakage enable sub-millisecond test cycle times with nanovolt-level accuracy. | Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs into a shared ADC front-end. IC Role / Device Role / Timing Role: Precision analog switch with ultra-low off-capacitance (15 pF) and high channel-to-channel isolation. Use Value: 650 pF·Ω C×R and 400 V withstand voltage prevent cross-talk and protect ADC from overvoltage faults. |
| Multiplexer | EMR / Reed Relay Replacement |
Use Scenario: 16:1 analog multiplexer in portable dataloggers requiring battery-operated low-power operation. IC Role / Device Role / Timing Role: Solid-state SPST switch with 1 mA LED drive enabling direct MCU GPIO control without buffer stages. Use Value: 0.04 A current rating and 65 Ω RON support 10-bit+ resolution across 10 kΩ source impedances. | Use Scenario: Replacing aging reed relays in medical diagnostic equipment where mechanical wear and bounce are unacceptable. IC Role / Device Role / Timing Role: Solid-state alternative with no contact arcing, infinite cycle life, and silent operation. Use Value: 3750 Vrms isolation and 7.4 mm creepage meet IEC 60601-1 patient-isolation requirements without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solid-state relay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP3554(F) | Single-channel, SO-6 package; 60 V output rating; 0.12 A current rating; 0.25 ms tON | Limited to lower-voltage DC signal routing; unsuitable for 400 V AC line sensing or HV test fixtures | Select only when system voltage ≤60 V and space-constrained SMT layout is required |
| VO1263A | Dual-channel, DIP-8; 400 V rating; 0.05 A rating; 0.15 ms tON; higher 1.5 nA leakage | Acceptable for general-purpose switching but less suitable for ultra-low-leakage precision measurement | Choose when cost sensitivity outweighs sub-nA leakage requirement in non-critical channels |
Compared with TLP3554(F) and VO1263A, the ASSR-402C-002E delivers superior combination of high-voltage capability, ultra-low leakage, and fastest switching - making it optimal for precision ATE and medical-grade data acquisition where signal fidelity and safety isolation are co-prioritized.
Availability
ASSR-402C-002E is available at Aetrix Electronics and suitable for automatic test equipment, data acquisition systems, and multiplexer designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole assembly.
Supply support for ASSR-402C-002E 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. (formerly Avago Technologies) is a global semiconductor leader specializing in infrastructure software, networking, and optoelectronics solutions with emphasis on reliability and signal integrity.
The ASSR-402C-002E belongs to the ASSR-40xC family - engineered specifically for high-speed, low-distortion signal switching in test and measurement systems where electromechanical relay limitations must be overcome.
FAQ
What is the maximum operating temperature range for the ASSR-402C-002E?
The ASSR-402C-002E is specified to operate reliably from –40°C to +85°C ambient temperature. This range is validated across all electrical parameters including on-resistance, leakage current, and switching times. Thermal derating is not required within this envelope, and the device maintains full 400 V output withstand capability throughout the range. The junction temperature limit remains at 125°C, consistent with its packaging and internal MOSFET design.
Does the ASSR-402C-002E support AC load switching?
Yes, the ASSR-402C-002E supports bi-directional AC and DC load switching due to its back-to-back MOSFET output configuration. Its 400 V peak output withstand voltage applies to both polarities, and the device exhibits symmetrical on-resistance and leakage behavior. No external snubbers or polarity protection diodes are needed for standard 120/240 VAC line-sensing or signal routing applications.
What is the recommended input LED drive current for reliable operation of the ASSR-402C-002E?
The ASSR-402C-002E guarantees turn-on with a minimum input current of 1 mA, but Avago recommends 5 mA for robust performance across temperature and lifetime. At 5 mA, forward voltage is typically 1.3 V, yielding ~6.5 mW input power - well within the 40 mW absolute maximum rating. This drive level ensures stable turn-on time (0.08 ms typ.) and mitigates LED aging effects over extended operation.
How does the ASSR-402C-002E achieve its 3750 Vrms isolation rating?
The ASSR-402C-002E achieves 3750 Vrms isolation via internal double-molded construction separating input LED and output MOSFET die, with ≥7.1 mm external air gap and ≥7.4 mm creepage distance between input and output pins. This physical separation, combined with high-CTI (175 V) encapsulation material and 0.08 mm internal clearance, satisfies UL1577 and CSA Component Acceptance #5 requirements for reinforced insulation without external barriers.
Can the ASSR-402C-002E replace two separate ASSR-401C devices?
Yes - the ASSR-402C-002E provides functionally equivalent dual-channel operation to two ASSR-401C units, but in a single 8-pin DIP-8 package instead of two 4-pin SO packages. Both share identical electrical specs (400 V, 0.04 A, 65 Ω RON, 0.3 nA leakage), and the ASSR-402C-002E's pinout isolates channels 1 and 2 completely. Board layout simplification and reduced component count are primary benefits of using ASSR-402C-002E in place of dual ASSR-401C.
ASSR-402C-002E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- ASSR
- Packaging:
- Tube
- Product Status:
- Obsolete
- Mounting Type:
- Through Hole
- Circuit:
- SPST-NO (1 Form A) x 2
- Output Type:
- AC, DC
- Voltage - Input:
- 1.3VDC
- Voltage - Load:
- 0 V ~ 400 V
- Load Current:
- 40 mA
- On-State Resistance (Max):
- 100 Ohms
- Termination Style:
- PC Pin
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-DIP
- Approval Agency:
- CSA, UL
- Grade:
- -
- Qualification:
- -
ASSR-402C-002E FAQ
1.How can I place an order for ASSR-402C-002E through Aetrix?
Please submit a Request for Quotation (RFQ) for ASSR-402C-002E 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-402C-002E reliable?
The price and inventory of ASSR-402C-002E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ASSR-402C-002E is usually 5 days.
3.What payment methods are accepted for ASSR-402C-002E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ASSR-402C-002E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ASSR-402C-002E?
ASSR-402C-002E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ASSR-402C-002E 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-402C-002E?
For technical support, including ASSR-402C-002E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ASSR-402C-002E requirements.
6.How does Aetrix verify that ASSR-402C-002E is sourced from the original manufacturer or authorized distributors?
All ASSR-402C-002E 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-402C-002E meets industry standards.
7.What is the process for return or replacement of ASSR-402C-002E?
All ASSR-402C-002E units undergo pre-shipment inspection (PSI). If there is an issue with ASSR-402C-002E, 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-402C-002E part is unused and in its original packaging.
Return procedure for ASSR-402C-002E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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