Intrinsic Safety

Obtaining Intrinsic Safety Certifications

Digi radio modems are used in products operating in hazardous environments. To ensure compliance, electronic equipment intended for use in areas with combustible gases often requires UL certification for hazardous locations.

Hazardous Location Ratings

• Class 1, Division 1A (C1D1A): The most hazardous, such as environments with direct exposure to acetylene gas.
• Class 1, Division 2 (C1D2): Less hazardous, like areas near an unleaded gasoline pump.

Certification Process

All electronic equipment used in these locations must be tested and certified by an independent lab. The lab evaluates schematics to confirm that even under failure conditions, the device will not generate sparks capable of igniting the atmosphere.

Alternative to Providing Schematics

If an OEM seeks certification for a product containing certain Digi modules, they can submit specific pre-approved documentation to the testing lab instead of a full schematic.

9XStream
Frequency of operation:    902-928 MHz
Maximum power at antenna connector:    141mW
Maximum current at antenna connector:    53mA (AC current @ 900Mhz)
Sum total of all capacitance on PCB:    0.98uF
Sum total of all inductance on PCB:    125nH
Largest capacitor on PCB:    0.1uF
Largest inductor on PCB:    56nH

24XStream
Frequency of operation: 2450 - 2460 MHz
Maximum power at antenna connector: 50mW
Maximum current at antenna connector: 31mA (AC current @ 2.4GHz)
Sum total of all capacitance on PCB: 1.4uF
Sum total of all inductance on PCB: 61.5nH
Largest capacitor on PCB: 0.1uF
Largest inductor on PCB: 15nH

9XTend
Frequency of operation: 905 - 925 MHz
Maximum power at antenna connector: 1000mW
Maximum current at antenna connector: 141mA (AC current @ 900MHz)
Sum total of all capacitance on PCB: 32.9uF
Sum total of all inductance on PCB: 295nH
Largest capacitor on PCB: 10uF
Largest inductor on PCB: 56nH

XBee (802.1.5.4 (S1))
Frequency of operation: 2405 - 2475 MHz
Maximum power at antenna connector: 2mW
Maximum current at antenna connector: 7mA (AC current @ 2.4GHz)
Sum total of all capacitance on PCB: 757pF
Sum total of all inductance on PCB: 60nH
Largest capacitor on PCB: 220pF
Largest inductor on PCB: 56nH

XBee-PRO (802.15.4 (S1))
Frequency of operation: 2405 - 2475 MHz
Maximum power at antenna connector: 63mW
Maximum current at antenna connector: 35mA (AC current @ 2.4GHz)
Sum total of all capacitance on PCB: 1.95uF
Sum total of all inductance on PCB: 89.8nH
Largest capacitor on PCB: 1uF
Largest inductor on PCB: 56nH

XBee (ZB (S2))
Frequency of operation: 2405 - 2475 MHz
Maximum power at antenna connector: 3mW
Maximum current at antenna connector: 8mA (AC current @ 2.4GHz)
Sum total of all capacitance on PCB: 10.9uF
Sum total of all inductance on PCB: 42.9nH
Largest capacitor on PCB: 10uF
Largest inductor on PCB: 22nH

XBee-PRO (ZB (S2B))
Frequency of operation: 2405 - 2475 MHz
Maximum power at antenna connector: 50mW
Maximum current at antenna connector: 32mA (AC current @ 2.4GHz)
Sum total of all capacitance on PCB: 11.9uF
Sum total of all inductance on PCB: 53.3nH
Largest capacitor on PCB: 10uF
Largest inductor on PCB: 12nH

XBee-PRO XSC
Frequency of operation: 902.7 - 927.3 MHz
Maximum power at antenna connector: 100mW
Maximum current at antenna connector: 45mA
Sum total of all capacitance on PCB: 6uF
Sum total of all inductance on PCB: 150nH
Largest capacitor on PCB: 4.7uF
Largest inductor on PCB: 56nH

XBee 868LP
Frequency of operation: 863 - 870 MHz
Maximum power at antenna connector: 25mW (+14dBm)
Maximum current at antenna connector: 26mA RMA (AC current @ 868MHz)
Sum total of all capacitance on PCB: 11.33uF
Sum total of all inductance on PCB: 134.2nH
Largest capacitor on PCB: 10uF
Largest inductor on PCB: 56nH

XBee-Pro 900
Frequency of operation: 904 - 926 MHz
Maximum power at antenna connector: 50mW (+17dBm)
Sum total of all capacitance on PCB: 8.6uF
Sum total of all inductance on PCB: 145nH
Largest capacitor on PCB: 47uF
Largest inductor on PCB: 56nH

XBee-Pro S3B (900HP and XSC)
Frequency of operation: 902 - 928 MHz
Maximum power at antenna connector: 250mW (+24dBm)
Sum total of all capacitance on PCB: 35uF
Sum total of all inductance on PCB: 179nH
Largest capacitor on PCB: 22uF
Largest inductor on PCB: 56nH

XBee WIFI (S6B)
Frequency of operation: 2.4 to 2.485 GHz
Maximum power at antenna connector: 51.29mW
Sum total of all capacitance on PCB: 59.74uF
Sum total of all inductance on PCB: 12.9nH
Largest capacitor on PCB: 22uF
Largest inductor on PCB: 8.2nH

XBee S2C
Frequency of operation: 2405 - 2480 MHz
Maximum power at antenna connector: 3.1mW
Maximum current at antenna connector (RF Pad): 7.9mA (AC current @2.4 GHz)
Sum total of all capacitance on PCB: 4.32uF
Sum total of all inductance on PCB: 31.4nH
Largest capacitor on PCB: 2.2uF
Largest inductor on PCB: 12nH

XBee PRO S2C
Frequency of operation: 2405 - 2480 MHz
Maximum power at antenna connector: 63mW
Maximum current at antenna connector (Embedded antenna, No connector): 35mA (AC Current @ 2.4 GHz)
Sum total of all capacitance on PCB: 4.32 uF
Sum total of all inductance on PCB: 30.9 nH
Largest capacitor on PCB: 2.2 uF
Largest inductor on PCB: 12 nH

XBee SX
Frequency of operation:    902-928 MHz
Maximum power at antenna connector:   20 mW (13dBm)
Maximum current at antenna connector:  20 mA (AC current @ 900Mhz)
Sum total of all capacitance on PCB:   23.19 uF
Sum total of all inductance on PCB:  258 nH
Largest capacitor on PCB:  10 uF
Largest inductor on PCB:  120 nH

XBee Pro SX         
Frequency of operation:    902-928 MHz
Maximum power at antenna connector:    1W (30dBm)
Maximum current at antenna connector:  141 mA (AC current @ 900Mhz)
Sum total of all capacitance on PCB:     27.5 uF
Sum total of all inductance on PCB:    807 nH
Largest capacitor on PCB:  10 uF
Largest inductor on PCB:     120 nH

XB3-24Z8UT         
Maximum power at antenna connector:         92 mW
Maximum current at antenna connector:       43 mA
Sum total of all capacitance on PCB: 24.4 uF
Sum total of all inductance on PCB:  4.72 uH
Largest capacitor on PCB:   10 uF
Largest inductor on PCB:     4.7 uH
Smallest Resistor value in ohms:      0 ohm
Voltage Enhancing components?   N
Negative Voltage Generating components:   N
Energy storing circuits or components with the exception of above capacitors
or inductors?  2 FERRITE components 240 ohm at 100 MHz

XB3-24Z8UT-J      
Maximum power at antenna connector:   6.6 mW
Maximum current at antenna connector:  11.5 mA
Sum total of all capacitance on PCB: 24.4 uF
Sum total of all inductance on PCB:  4.72 uH
Largest capacitor on PCB:  10 uF
Largest inductor on PCB:   4.7 uH
Smallest Resistor value in ohms:    0 ohm
Voltage Enhancing components?   N
Negative Voltage Generating components?   N
Energy storing circuits or components with the exception of above capacitors
or inductors?  2 FERRITE components 240 ohm at 100 MHz

XBRR-24x (all: ZigBee, DigiMesh, point to point):
Maximum power at antenna connector: 63 mW
Maximum current at antenna connector: 36 mA
Sum total of all capacitance on PCB: 16.3 uF
Sum total of all inductance on PCB: 18.4 nH
Largest capacitor on PCB: 10 uF
Largest inductor on PCB: 12 nH

XBRR-24xxxx-J (all, ZigBee, DigiMesh, point to point)
Maximum power at antenna connector: 6.3 mW
Maximum current at antenna connector: 11 mA
Sum total of all capacitance on PCB: 16.6 uF
Sum total of all inductance on PCB: 14.6 nH
Largest capacitor on PCB: 10 uF
Largest inductor on PCB: 12 nH

XB3BLU
Maximum power at antenna connector: 6.3 mW
Maximum current at antenna connector: 11 mA
Sum total of all capacitance on PCB: 16.6 uF
Sum total of all inductance on PCB: 14.6 nH
Largest capacitor on PCB: 10 uF
Largest inductor on PCB: 12 nH

XB-8XR (XR 868)
Maximum power at antenna connector: 16 mW
Maximum current at antenna connector: 18 mA
Sum total of all capacitance on PCB: 27.7 uF
Sum total of all inductance on PCB: 5.75 uH
Largest capacitor on PCB: 10 uF
Largest inductor on PCB: 4.7 uH

XB-9XR (XR 900)
Maximum power at antenna connector: 89 mW
Maximum current at antenna connector: 40 mA
Sum total of all capacitance on PCB: 27.7 uF
Sum total of all inductance on PCB: 5.75 uH
Largest capacitor on PCB: 10 uF
Largest inductor on PCB: 4.7 uH