AMB8636 Equivalent & Substitute Parts

Part Overview

The AMB8636 is a General ISM < 1GHz transceiver module manufactured by Würth Elektronik, operating at 869MHz with 2-GFSK modulation and a maximum output power of 27dBm. This castellation surface mount module is designed for ISM band applications requiring low-power wireless communication. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

AMB8636

Würth ElektronikIn Stock: 883AMB8636 Datasheet

Current PartRFQ

RC1780HP-RC232

Radiocrafts ASIn Stock: 2214RC1780HP-RC232 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AMB8636 is determined by alignment across the following critical parameters:

• RF Family/Standard: General ISM < 1GHz band operation
• Modulation: 2-GFSK modulation scheme
• Output Power: 27dBm maximum output
• Serial Interface: UART connectivity
• Mounting Type: Surface mount castellation configuration
• Compliance: ROHS3 compliance and REACH unaffected status

The RC1780HP-RC232 meets these substitution criteria. Both modules operate within the ISM < 1GHz frequency band, employ 2-GFSK modulation, deliver 27dBm output power, utilize UART interfaces, and maintain identical compliance certifications. Frequency overlap (869MHz vs. 868MHz–870MHz) and compatible supply voltage ranges support direct functional substitution in ISM band applications.

Parameter Comparison

Engineering Selection Recommendations

The RC1780HP-RC232 is the qualified substitute for the obsolete AMB8636. Both modules maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The RC1780HP-RC232 offers active product status with improved receiver sensitivity (-118dBm vs. -113dBm) and reduced transmit current consumption (297mA vs. 500mA), providing operational advantages in power-constrained applications. The substitute supports higher data rates (100Kbps vs. 50kbps) while maintaining identical output power and modulation characteristics. Supply voltage ranges overlap sufficiently (2.8V–3.6V common range) for direct integration. Operating temperature range of the substitute (-30°C to 85°C) covers the majority of the original specification (-40°C to 85°C), with the lower limit difference requiring evaluation only in extreme cold-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the RC1780HP-RC232 directly replace the AMB8636 in existing designs?

A: Yes, for applications operating within the -30°C to 85°C temperature range. Both modules share identical RF family classification, modulation scheme, output power, and UART interface. Frequency overlap (869MHz within the 868–870MHz range) and compatible supply voltage ranges support direct substitution. Applications requiring operation below -30°C require thermal performance evaluation.

Q: What are the key differences between these modules?

A: The RC1780HP-RC232 provides improved receiver sensitivity (-118dBm vs. -113dBm), lower transmit current (297mA vs. 500mA), and higher data rate capability (100Kbps vs. 50kbps). The AMB8636 supports a wider lower operating temperature limit (-40°C vs. -30°C). Supply voltage ranges differ slightly (2V–3.6V vs. 2.8V–3.8V), with 2.8V–3.6V as the overlapping range.

Q: Are there packaging or mounting differences?

A: Both modules use surface mount castellation configuration. The RC1780HP-RC232 is supplied in Cut Tape (CT) packaging, while the AMB8636 packaging format is not specified. Both are classified as Module package types suitable for identical PCB integration methods.

Q: What compliance certifications apply to the substitute?

A: The RC1780HP-RC232 maintains ROHS3 compliance and REACH unaffected status, matching the original AMB8636 certifications. Both modules are classified under HTSUS code 8517.62.0090.

Q: Does the higher data rate of the RC1780HP-RC232 affect compatibility?

A: No. The substitute supports 100Kbps maximum data rate, while the original operates at 50kbps. Systems designed for 50kbps operation function within the substitute's capability range. Protocol implementation (RC232) is handled at the application level and does not affect hardware substitution feasibility.